Fluid Power Journal November/December 2013

Product Focus: Conventional Valves, Repair & Reconditioning

November/December 2011

Featuring the World’s Largest Underwater Moveable Stage +

Plus: New IFPS CertificatioN:

Fluid Power System Designer • • •

hydraulic products

& the replacement market

Innovative Designs & Publishing

3245 Freemansburg Avenue, Palmer, PA 18045-7118

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contents november/december 2011 | Volume 18 | Issue 10

Features

7 12 18 20 24 Diesel Hydraulic Control Combines Diesel Engine and Hydraulics Control

burr identification and removal

By George Barbin Marketing Manager Colonial Seal Company

Continuum® Pump for Workplace Noise Reduction

Precise Hydraulic Controls

How to Keep Tabs on a Hydraulic Machine’s “Vital Signs”

by Agostino Martini Settima

By Matt Schoenbachler, Comoso, and Dennis Ritola, Delta Computer Systems Inc.

By Brendan Casey

hydraulic products and the replacement market

basic vacuum cup selection

Departments 04 Notable Words 05 All About Air 06 Math Teasers 10 The Lube Engineers’ Forum 14 IFPS Certification Spotlight

15 Calendar of Events 16 Product Review 26 Product Spotlight 36 Web Marketplace 39 Association News 45 Classified

Help Create Spectacular Special Effects for the World’s Largest Underwater Moveable Stage

32 34

By Dan Pascoe

By P.K. Guha

Publisher’s Note: The information provided in this publication is for informational purposes only. While all efforts have been taken to ensure the technical accuracy of the material enclosed, Fluid Power Journal is not responsible for the availability, accuracy, currency, or reliability of any information, statement, opinion, or advice contained in a third party’s material. Fluid Power Journal will not be liable for any loss or damage caused by reliance on information obtained in this publication.

Official Publication of The International Fluid Power Society

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NotableWords

The Growing Need For Controls Knowledge “Anyone can hook red-to-red and black-to-black.” That’s what I was told about the electrical staff on my first day of work at a major theme park ride manufacturer many years ago. Of course the mechanical foreman I was working for had no use for the electrical side of the house.

He teased them constantly, usually addressing them as “Sparky.”

With the rapid advance in motion control technology in recent years, as well as the growing need to know both fluid and controls strategies, I thought I might give some advice: Keep Up With the Technology: In the past, controlling hydraulic or pneumatic equipment with electricity meant running two or four conductor cables out to “bangbang” valves and sending the signals out through relays. The feedback system, at its highest complexity, was limit switches. We have come a long way since then, and complex electronic controls for hydraulics and

By Gregory George, pneumatics is now widespread and growing. You would be hard pressed CFPS, CFPC&C, to find a new piece of excavation equipment or even a farm tractor that CFPC&CJPP, CFPJPP, CFPAI, didn’t have advanced electronic controls for the hydraulic functions it Walt Disney World needs to perform.

Some new excavation equipment are even controlled by GPS systems so that the person running the bulldozer or grader doesn’t even control the height of the blade. A robust computer network tells a proportional valve to raise or lower the blade based on real-time satellite data.

I am reminded of these things as I study the IFPS Electronic Controls Specialist certification study guide.

These systems are only going to get more complex, so I strongly suggest as system designers that we keep up with the technology. The transition from bang-bang valves to servo and proportional systems was relatively slow compared to the transition to networked bus systems and advanced feedback and motion controllers.

Know the System You Are Using: Nothing against vendors, application engineers, and manufacturers, but in my business, if things go wrong with a design, you can’t point back to a vendor or an applications engineer and say, “He told me to use this stuff.” As system designers and integrators, we have to take responsibility for the design and how the system will behave. We need to think through what might happen when any component in the system fails and how that might change the behavior of the system. I am not saying you need to make yourself an electronics expert at the component level, but we need to understand the basic operations of an electronic component and what its job is.

If the valve you selected expects to see a pulse width modulated signal, you should know what PWM is and why you can’t read it with a multi-meter. If you learn the system during design and start-up, it can also help you down the road when someone calls you with a problem or needs help troubleshooting.

Study and Take the Electronic Controls Specialist Test: The IFPS Electronic Controls Specialist (ECS) certification is a great indicator to determine if you have the tools you need to dig deeper into these systems and learn the specific hardware and software required to properly design an advanced system. If you have limited background in electronics or controls, I would strongly suggest taking an IFPS review course for the ECS before taking the test.

More than fancy initials on your business card or getting your name in the back of the Fluid Power Journal, studying, taking, and passing a difficult test can also give you the confidence you need to get out there and use these newer systems and components.

Make Good Friends: If you decide not to keep up with technology, I suggest you make a good friend on the electronics side in the motion control industry, and take that person with you whenever you start up a new system or troubleshoot an existing system. Some of my biggest successes in troubleshooting have come from collaboration with a controls engineer or technician helping me determine how the system is really behaving. At this point, the solution to the problem is pretty clear.

Happy Troubleshooting!

Publisher Innovative Designs & Publishing, Inc. 3245 Freemansburg Avenue, Palmer, PA 18045-7118 Tel: 800-730-5904 or 610-923-0380 Fax: 610-923-0390 | Email: AskUs@ifps.org www.FluidPowerJournal.com Associate Publisher: Marc Mitchell Art Director: Quynh Vo Editor: Kristine Coblitz Account Executive: Bob McKinney VP Operations: Lisa Prass Accounting: Donna Bachman, Debbie Clune Publishing Assistant: Sharron Sandmaier Operations Assistant: Tammy DeLong Circulation Manager: Andrea Karges International Fluid Power Society 1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 | Fax: 856-424-9248 Email: AskUs@ifps.org www.ifps.org 2011 Board of Directors President & Chairperson Jon Jensen, CFPPS, CFPECS, CFPAI SMC Corporation of America Immediate Past President Rickey L. Rodeffer, CFPMT, CFPS, CFPMIH, CFPAI The Boeing Company First Vice President Patrick J. Maluso, CFPMHM, CFPS, CFPAI Western Hydrostatics, Inc. Vice President Education James F. Simpson, CFPS, CFPMM, CFPAI Nusim Assoc. Fluid Power Consultant Treasurer Tom Blansett, CFPS, CFPAI Eaton Corporation Vice President Membership & Chapter Support George Bufink, CFPMMH, CFPAI American Electric Power - retired Vice President Certification Wayne C. Farley, CFPMMH, CFPAI - Verizon Vice President Marketing & Public Relations Mark Perry, CFPHS - Fitzsimmons Hydraulics Vice President Educational Foundation Marti Wendel, CFPS, CFPE - The Paquin Company Directors-at-Large Justin Sergeant, CFPS - Open Loop Energy, Inc. Bismarck (Bill) Castaneda, CFPHS - Automation Tech, Inc. Jeremiah Johnson, CFPHS - Caterpillar, Inc. Samuel Skelton, CFPPS, CFPAI - SMC Corporation of America Jean Knowles, CFPS, CFPE - Spencer Fluid Power, Inc. A subsidiary of Applied Industrial Technologies Marti Wendel, CFPS, CFPE - The Paquin Company, Inc. L. David Ruffus, CFPAI, CFPMHM, CFPMHT Georgia Power Company Richard Bullers, CFPPS - SMC Corporation of America Michael Anderson, CFPS - Motion Industries Bill Jordan, CFPMHM, CFPAI - Altec Industries Dan Helgerson, CFPS, CFPPMT, CFPAI Cascade Steel Rolling Mills, Inc. Rance Herren, CFPS, CFPCC - National Oilwell Varco Honorary Directors Robert Firth John Groot, CFPPS Raymond Hanley, CFPE/AI-Emeritus Robert Sheaf, CFPAI, CFPE, CFPMM, CFPMT, CFPMIT, CFPMMH, CFPMIH, CFPECS IFPS Staff Executive Director: Donna Pollander Certification Manager: Sue Tesauro Communications Manager: Adele Kayser Membership Coordinator: Sue Dyson Certification Coordinator: Connie Graham Certification Coordinator: Diane McMahon Administrative Assistant: Beth Borodziuk Bookkeeper: Diane McMahon Fluid Power Journal (ISSN# 1073-7898) is the official publication of the International Fluid Power Society published bi-monthly with four supplemental issues, including a Systems Integrator Directory, Off Highway Suppliers Directory, Tech Directory, and Manufacturers Directory, by Innovative Designs & Publishing, Inc., 3245 Freemansburg Avenue, Palmer, PA 18045-7118. All Rights Reserved. Reproduction in whole or in part of any material in this publication is acceptable with credit. Publishers assume no liability for any information

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published. We reserve the right to accept or reject all advertising material and will not guarantee the return or safety of unsolicited art, photographs or manuscripts.

ALL aboutair

VACUUM IMPLICATIONS

V

acuum is a force of nature. My first exposure to vacuum as a lad was with an ancient milking machine on my uncle’s farm in Wisconsin. For those who haven’t had the pleasure, milking the most compliant cow is an arduous task. The process was automated early for good reason.

Both compressors and vacuum generators use the air around us to produce force with differential pressure. Vacuum generators remove air, and atmospheric pressure attempts to replace the air removed. The result is organic horsepower.

Atmosphere, the air around us, is like a sea of air, and we are on the bottom of that sea. The pressure of air all around us is 14.7 pounds per square inch— atmospheric or 29.92 "Hg (inches of mercury) at sea level on a day with standard conditions. That would be 0 psig on a common pressure gauge.

In Denver, Co., the mile high city, the pressure from the atmospheric air is approximately 12.2 PSIA or 24.83 "Hg and still 0 PSIG pressure gauge.

At 80% vacuum, a common working level, 24 "Hg “rough vacuum” at sea level would only be 19.86 "Hg at Denver. At sea level, vacuum cup(s) with 5 square inches of area might hold 58.8 lbs = 80% of 14.7 psia x

5 in2. At the elevation in Denver, atmospheric pressure drops to 12.2 psia x 80% x 5 in2 = 48.8 lbs.

Atmospheric pressure surrounds the earth and helps make vacuum systems safe, reliable, and cost effective.

For safety when lifting, use 2x for horizontal loads and 4x for vertical loads, and always consider the contact seal or cup. Vacuum systems commonly pick up plate glass or sheets of plywood with flexible cups. Tiny cups on mounts like a ballpoint pen are ideal for picking up tiny electronic components and medical devices.

A unique application uses high-volume vacuum in a plenum to transport sheets of veneer similar to an inverted conveyor. Vacuum holds the veneer up against moving belts on the bottom side of the plenum to transport it. At the desired location, it is pushed away from the vacuum downward with pneumatic cylinders.

With no obstruction on the bottom side of this convey-

by Thomas W. Kreher, CFPPT, Applied Pneumatic Controls, Inc., OIL SMOKE® www.applied-pneumatic.com

ance, the veneer drops into a bin. With light material on right side up conveyors, if gravity does not provide adequate friction against the transport belts, vacuum from below the belts may make the difference. Vacuum transports granular material through tubes and picks up dirt and liquid. Vacuum moves shuttles with money and messages through tubing. On airplanes and trains, it performs a vital function in the water closet.

The local natural gas company traces their roadside distribution pipes with a van and a vacuum pick up on a boom to “sniff” (take samples) for gas leaks.

Vacuum is generated with big vacuum pumps as well as little pumps similar to compressors in a pressure system. In addition, very effective venturi vacuum generators add flexibility, function, efficiency, and additional benefits. In a sensitive, clean room environment, a by-product of vacuum may help by removing air that can be replaced with better, cleaner air. Smoke, fumes, saw dust, etc., may be removed with vacuum for a better work area.

It may be counter-intuitive, like thinking in reverse, but to be effective, vacuum should be considered. Tell your associates about the other 95% of vacuum uses and applications not mentioned here.

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november/december 2011

5

Mathteasers

New Problem: Piping Flow Rate

Please determine the volume flow rate if the fluid is flowing at a rate of 15-(ft/sec) and a pipe diameter is 2 inches.

Please express your answer in gallons per minute (gpm).

previous Problem: Hydraulic Cylinder Requirements

A 2-inch hydraulic cylinder is required to move a 1000-lb load vertically upward. Please calculate: a. The steady–state force required to move the load at 20-ft/sec. b. The total force required to accelerate the load from a stationary position to 20-ft/sec in 1-seconds. c. The pressures required for steady-state motion and acceleration.

Please ignore friction losses. The steady-state force (F ss) required to move the load vertically at 20-ft/sec or at any constant velocity (speed) is equal to the weight of the load. F ss = 1000lbs

Solution:

Illustration: John Spisak

With Professor P.V. Btfsplk The teaser is posted on the IFPS Web site (www.ifps.org) and also printed in the Fluid Power Journal. Submit your information via the Web site, or fax it to 856-424-9248 attn: Donna Pollander. Anyone who submits the correct answer before the deadline date will have his/her name printed in the Society Page newsletter and in Fluid Power Journal. The winner will also be entered into a drawing for a special gift.

Force total = Wt + (Wt/g x a) Ignoring the friction losses, the steady-state forces required to move the load vertically at 10-ft/sec is therefore equal to weight of the load.

Friction steady-state F (steady-state) = 1000-lbs Force = Wt + (Wt/gravity x acceleration) = 1000-lbs + (1000-lbs / 32.2-ft/sec2 x [10-ft/sec – 0-ft/sec] / 0.5-seconds) = 1000-lbs + (1000-lbs / 32.2-ft/sec2) = 31.055 (10-ft/sec / 0.5-seconds) = 20 31.055 x 20 = 621.118 + 1000 = 1621.118-lbs or 1621-lbs.

Pressure Psi = F- (steady-state) / Area-in2 = Psi = 1000-lbs / 3.14-in2 = 318-psi Psi = Force-(acceleration) / 3.14-in2 = 1621-lbs / 3.14-in2 = 516-psi Winner: Bob Domann CFPE Halliburton Duncan, OK

Answered Correctly: George Fling CFPS Southwestern Controls, Inc. Dallas, TX

Richard Throop CFPAI, CFPS, CFPMM, CFPMT Michigan Fluid Circuit Design Fenton, MI

Karl Kersker CFPE ATK Launch Systems Brigham City, UT

Harry Pawluk CFPS Hanco, Ltd. Lawrence, PA

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www.fluidpowerjournal.com | www.ifps.org

Fluid Power

Product

Diesel Hydraulic Control Combines Diesel Engine and Hydraulics Control

focus

igh-dynamic response of the travel drive and implement hydraulics on mobile work equipment even at reduced diesel engine speeds and Tier 4 final engines: This is the goal Rexroth has achieved with their electronic BODAS system called “Diesel Hydraulic Control.”

Developed together with diesel engine specialists from Bosch, this solution for engine management as well as drive and working hydraulics reduces diesel fuel consumption by up to 20%.

The Tier 4 emissions regulations for mobile work equipment due to take effect starting in 2014 will likely result in significantly poorer load response of diesel engines. Furthermore, manufacturers of excavators, telehandlers, and other mobile work equipment are reducing the engine speeds in order to consume less diesel fuel. The control devices used until now for the drive and working hydraulics cannot compensate for this “sluggishness.” The potential risk is lower productivity.

With Diesel Engine Control (DHC), Rexroth and Bosch teamed up to develop a new control strategy that retains the accustomed lively response of the travel drive and implement hydraulics even under conditions of diminished load response and lower engine speeds. DHC changes the traditional function sequence and lets the diesel engine know of expected load requirements. This is accomplished using matched controllers from Bosch for engine management and from Rexroth for the travel drive and implement hydraulics, using a common special map. This DHC system map represents the vehicle-specific relationships between rpm’s, efficiency, and torque.

Diesel Hydraulic Control continuously determines the demands of the travel drive and implement hydraulics and uses this information to dynamically calculate the optimal operating points for the diesel engine and hydraulic components by means of the DHC system map. In practice, the joystick for the implement hydraulics, for example, transmits pending work requirements directly to the DHC, which in turn passes this requirement to the diesel ECU. This allows the engine time to prepare for the imminent mechanical load. This combined controller solution compensates in this way for the expected poorer load response of Tier 4 final diesel engines. At the same time, DHC makes it possible to operate the equipment at the accustomed dynamic response levels in spite of lower engine speeds, thereby saving fuel.

Since DHC means that the diesel engine only provides as much power as the machine actually needs at any given moment, diesel fuel consumption is reduced compared with current figures. Fuel savings of up to 20% as measured in real-life testing will reduce the total cost of ownership for operators with no sacrifice in dynamic response of the travel drive and implement hydraulics.

For more information, visit www.boschrexroth-us.com.

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november/december 2011

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Circle 270

The LubeEngineers’Forum

A

What Not to Do When Designing or Retrofitting an Automatic

fter a speaking engagement in Nashville some years ago I was asked, “What should our mill do to ensure a lube system’s efficiency and to increase bearing lifetime?”

My reply involved mechanics, but the theme of the reply was, “I don’t yet know everything I should do on a given project, but I’ve learned most of the things not to do.”

The answer comes in many parts:

1. Don’t use only your own departmental, corporate, or other known intelligence, but rather consider all venues for possible success. Vendors have engineers you may utilize, and you may compare ideas from various vendor engineers— all available for free.

2. Don’t overlook environmental factors such as ambient temperature, cooling water, maximum yearly temperature, or ambient moisture and particulate situations. Don’t forget to estimate Delta T (temperature) gains that may be expected.

3. Don’t forget to calculate and design systems accordingly to arrive at the frequency and duration to be produced to properly lubricate each pin/plain bearing on time.

4. Don’t forget to be certain that the controller and delivery parameters are within a vendor’s normal parameters for efficient operation.

5. Don’t get in a hurry. Your boss will prefer a system that works permanently as compared to one that was started up per management schedules and designed around owner demands. Don’t submit to pressure, but rather adhere to principles of physics.

Automatic Lubrication for Conveyor Chain Pin Applications • A chain pin automatic air-over-oil lubrication system is an economical method of ensuring accurate, consistent lube application for conveyor chain pins. Oil droplets or spray may be achieved through the varying of supply air pressure and delivery nozzle orifice diameter plus the programmable controller inputs. Systems should be pro-

•

•

•

•

•

•

•

• •

Fig. 1

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grammable controller, menu-driven, stand-alone systems.

Remote sensing and monitoring per input/ output parameters and system adjustments may be accomplished through the controller, via a Programmable Integral Derivatives (PID) loop in either 110 VAC (with onboard power source module) or 24 VDC input.

The engineer, knowing his conveyor chain total length, speed in feet per minute, and pin- to-pin distance, is ready to begin. Use conveyor feet per second (FPS) and pin-to-pin distance to establish timing for each pin to present itself to the lube supply. If you get the frequency correct based on FPS, cycle start timing and lube duration are easily adjusted within the PC program.

System start-up and adjustments will be simplified by designing around a “window” of lube opportunity. Frequency of lubrication cycles will be determined first, followed by timing calculations to determine the initial cycle beginning point.

If, on initial start-up, you find that you are spraying/dripping halfway between pins every 13 seconds, set the timer for 6.5-second intervals, then program to eliminate every other cycle. All controls functions are to be fully adjustable.

Two nozzles per conveyor chain pin should be positioned to accommodate pin length, creating a system with four nozzles total per chain (i.e., east and west sides of conveyor).

Nozzles (outlets) should be flexible in their positioning and should have freedom for modification of direction. Consider both proximity and lube direction of approach to the lube point when locating outlets. Gravity continues to apply.

Don’t forget to consider local heat or contamination sources, or air turbulence. You may wish to install a mechanical shield to maintain lube delivery integrity.

With regard to the PID loop, local and remote monitoring with feedback is required.

Pressure, flow, and temperature sensor/transmitters are readily available. A designer should consider all system vulnerable points or conditions. The Distributed Control Systems (DCS) www.fluidpowerjournal.com | www.ifps.org

Hydraulic Pumps & Boosters We offer: Air Driven Hydraulic Pumps for:

Conveyor Chain Pin Oiling System

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Air Driven Air Boosters for: operator should always be able to predict the next occurrence or continuing system stability.

• A pressure sensor/transmitter will advertise a system problem involving delivery capability. These devices should be installed at air/oil mixing valve outlet and just before each nozzle. A permanent base line reference should be made on start-up.

Also note the selected air pressure for efficiency in a baseline data maintenance manual.

• Record ambient temperature as baseline data.

Plot potential for thermal expansion/retraction to arrive at future settings for various climatic conditions.

• Consider vendor recommendations when selecting oil viscosity, which may vary by season.

May I reiterate that you should utilize all vendor engineers as “experts” to be reviewed as to their suggestions.

• Don’t forget to analyze oil additives potential for causing problems.

• Plan your work, and work your plan.

• A non-temperature affected system working pressure variance may include line blockage or nozzle clogging (higher pressure) or line leaks (lower pressure).

• A rotary gear-type flow sensor/transmitter is expensive, but worth the money if you have a system that costs a lot to have inoperable. SCFM input monitoring will provide a PID loop input as to verifying delivery capability.

• A temperature sensor/transmitter will advertise impending problem conditions.

If the design engineer factors in these variables, there is some potential to install a good system. Monitor all conditions throughout the system, and establish rules of interpretation and control adjustment. Very few successful systems are accidental. See Fig. 1 for a typical schematic of air/oil chain pin lube system.

Please send corrections, adaptations, or comments to my attention, as I am quite willing to learn. I don’t know it all yet, but with your help I plan to.

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Circle 272

By Wade Parks, WP Associates

The objective of the Lube Engineer's Forum is to provoke thought and dissimilate ideas throughout the user industry.

WP Associates has been a contributor toward this endeavor for many years but is always looking for lubrication engineers to ask a question or provide intelligence. We need you!

Contact Wade at wpassociates@plantationcable.net Circle 271 www.ifps.org | www.fluidpowerjournal.com

november/december 2011

11

I d e n t i f i c at i o n a n d R e m o va l By:

George Barbin

Marketing Manager Colonial Seal Company

you’re in the business of milling, grinding, drilling, plasma cutting, stamping, or any of the other various processes used to produce machined components, then you are all too familiar with burrs and the problems they cause.

Burrs are a nuisance that draws close comparisons to the common cold. Just as there are many different ailments associated when diagnosing an individual with your “typical cold,” there are multiple definitions that attempt to describe what constitutes a burr and the root cause of these deformations. One generally accepted description, provided by the Society of Manufacturing Engineers (SME), defines a “burr” as a raised edge or small piece of material that remains attached to a work piece after a modification process. For the purpose of this article, the primary focus will be centered on identifying burrs created by the molding and machining processes during the manufacturing of various types of metal-cased seals, and how these burrs can be properly removed.

Just as any machine part experiences wear from prolonged use, the seal molds (tools), which are used to caste the various shapes and styles of seals, also experience the same degradation after a certain working life period. As the tool is exposed to this prolonged use, the edges of the tool itself will slowly begin to deteriorate and lose their structural rigidity. When the mold’s edges begin to wear away, excess metal alloy may escape through tiny gaps resulting in a seal casing that has excess metal deposits, or burrs. These excess deposits can become a problem if not removed prior to being installed in a particular application. Burrs increase the risk of corrosion, could cause unwanted friction, reduce the sealing between the seal case and bore, and in rare instances act as an electrical conductor.

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Because the excess metal does not allow for the seal to fit properly into the application, one side of the seal may be raised higher than the other side. This allows air or moisture to directly contact the metal seal casing, which is one of the primary causes of corrosion and could lead to premature seal failure or make it very difficult to remove the seal when replacement is required.

When the seal is being installed in a dynamic application, burrs could cause unwanted friction, improper lubrication, or damage to the shaft or bore. If the burr is located on the inner diameter of the seal, it could create scratches or wear marks on the shaft, thereby causing excessive, undesirable leakage. Conversely, if the burr is located on the outer casing of the seal, it could cause damage to the housing, or bore. In the most extreme

instances, if a seal with a burr is installed in a dynamic application, the sharp point of the burr can act as an electrical conductor, which can result in a static discharge, and depending on the media used in the application, the possibility of fire or explosion may exist.

Unfortunately, identifying burrs on a seal casing is not usually as simple as a visual inspection. This is the reason some burrs are not detected until the seal is already installed in an application, and the burr results in a seal malfunction or causes unnecessary wear or damage to the shaft or housing.

Most seal manufacturing processes incorporate a finished goods inspection step in their Quality Management System. For burr detection this step would include having a technician or quality inspector test a representative sample amount

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Kuriyama of America, Inc.

The Kuriyama Value™ from each batch of product prior to final approval of the product. This quality control step will certainly help in detecting these deformations and should provide the manufacturer an indicator of tool wear.

Proper testing procedures for burr detection include both a visual inspection using a magnification tool or a physical “touching” process with the hand of the inspector. The limits on size or number of burrs is usually set by the manufacturer, but can also be specified by the customer. If burrs are detected and are not within tolerances, there are several methods of “de-burring” or removing these imperfections so that the seal cases still meet customer requirements.

Of course, the tools should also be re-inspected to ensure that the tool meets design specifications.

Whether you rely on an automated process like tumbling or on a worker in the warehouse, it is imperative that programs are in place for monitoring products and properly removing burrs from any unit prior to it reaching the end-user.

The process of removing these extrusions or burrs from what should be smooth, finished surfaces is referred to as “de-burring.” De-burring can be completed either manually or automatically.

Manual de-burring has been around for decades and involves a worker physically searching, finding, and removing burrs using a manual de-burring tool (most often a type of brush with steel, nylon, or diamond-coated bristles). Those who are involved in this activity are noted for their patience, dexterity, and attention to detail. However, this process creates a large amount of metal dust, which can be hazardous to one’s health, and the process is extremely repetitious, which often results in inconsistent dimensional “finished” products. Most manufacturers have automated the de-burring

process. This ensures that each finished product is subject to the exact same procedures for product de-burring, as opposed to a manual process that sometimes produces inconsistent results.

Automated de-burring can be completed using a variety of different techniques including brushing, milling, grinding, and tumbling. For brush deburring, the de-burring tool rotates on an axis and the brush material conforms to the product’s surface removing any excess extrusions. This technique of burr removal relies heavily on the rotating speed of the brush, as well as the bristle flexibility. Factors that affect flexibility include the bristle material, length, diameter, and tensile strength. Typical cutting speeds for these de-burring applications range from 15 meters per second to 30 meters per second.

The milling and grinding de-burring processes are required when burrs have a foot width (distance the burr extends along the product surface) in excess of 0.4 millimeters. Milling and grinding require guiding the tool precisely along the product’s edge that is being de-burred. Pressure applied to the tool against the edge that is being de-burred (known as the “expansion pressure”) determines how much excess metal will be removed from the case or metal product. Unfortunately, milling and grinding create secondary burrs that must then be removed using the brushing technique. The third option for de-burring is referred to as “tumbling.” It is the most inexpensive option and allows for multiple products to be de-burred at the same time. This process involves placing the products with the deformations into a rotating barrel or vibratory bowl along with some type of finishing media (when dealing with metal alloys, the most popular finishing product is a type of ceramic media). This option for de-burring is best suited for unfinished materials. The reason for this is because the media that removes the burrs will also remove whatever type of finishing is on the product whether it is a polished plate or some type of paint.

For finished products, one of the previously described de-burring methods should be utilized, which will increase lead times and costs.

summation, burr identification and removal processes are both issues that in an ideal world would not exist. Fortunately, most manufacturers have implemented appropriate identification techniques and removal procedures that minimize the occurrence of burrs in finished products. Whether you rely on an automated process like tumbling or on a worker in the warehouse, it is imperative that programs are in place for monitoring products and properly removing burrs from any unit prior to it reaching the end-user. Distributors should also have random inspection procedures in place for finished product that includes burr identification, especially if customers’ print specifically requires that no burrs are acceptable.

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New! Kuriyama Hydraulics Catalog • Includes new Piranhaflex™ 100R7 and 100R8 thermoplastic hydraulic hoses.

• New T836AA single wire braid hydraulic hose with MSHA cover.

New! KuriKrimp™ Crimpers & Accessories Catalog • New improved Die Kages for protection and storage of dies for the KD100 series crimpers.

• New KD4-600 and KD4-1000 series crimpers for crimping larger ID industrial hoses.

• New line-up of KuriSaws™ cutting equipment.

• A new 10 ton fitting pusher is now offered.

New! Piranhaflex™ 100R18 Hydraulic Hoses • Piranhaflex™ 100R18 Hydraulic hoses are ideal for general purpose high pressure hydraulic applications with a constant working pressure of 3,000 psi for each diameter.

360 E. State Parkway Schaumburg, IL 60173 (847) 755-0360 • Fax: (847) 885-0996 sales@kuriyama.com

www.kuriyama.com Circle 274

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13

IFPS

CERTI FIC SPOTLI ATION GHT

Connector and Conductor Certification (CC) The International Fluid Power Society is the only organization that provides comprehensive technical certification offerings for all professionals in the fluid power and motion control industry.

Additional practice questions can be found in the certification section of www.ifps.org.

IFPS defines a Connector and Conductor professional as one who fabricates, assembles, and tests hose and assemblies. The success or failure of any fluid power system depends on four factors: design, installation, start-up (commissioning), and maintenance. Hose and tube assemblies are a vital consideration in each of these factors as well as system and operating personnel safety.

All Connector & Conductor certifications require a three (3)-hour written and a three (3)-hour job performance (hands-on) test. The recommendations in the IFPS Connector & Conductor study manual are not applicable to automotive hydraulic/ pneumatic brake and power steering assemblies or aerospace equipment.

Summary: • Understand basic components of hose construction • Identify hose types and pressure ratings

• Identify port and fitting threads using measuring tools and charts • Identify the various two- and four-bolt flanges • Use appropriate charts to determine ratings for stainless and carbon steel tubing for application • Use the “Stamped” acronym to determine the correct hose and/or tube for correct assembly procedure • Understand metric and English values to ensure correct assembly of components • Square-cut hose to measured length • Know when and how to skive hose • Perform crimp machine inspection and calibration to ensure proper final hose assembly • Use caliper to measure crimp dimensions • Flare tubing to make assembly • Inspect Flareless tube assembly • Inspect twin ferrule tube assembly • Use silver brazing to assemble fittings to tube • Use hydraulic test stand for proof, burst, and impulse testing • Identify and use proper standards to ensure conformance and appropriate quality and safety • Provide safety covers for line of sight and abrasive locations • Provide documentation • Properly dispose of used assemblies

Test your skills

1. Which of the following is a non-conductive hose according to SAE? A. 100R6 B. 100R8 C. 100R10 D. 100R16 E. 100R17 2. Orientation tolerance of offset elbow ends is: A. Depends on the hose diameter B. +/- 2% For pressures in excess of 3000psi C. +/- 5% for crimped assemblies D. +/- 3 degrees if assembly 24 inches or less E. +/- 5 degrees if less than 24 inches 3. What is considered the allowable angle variation from a perfect square hose cut that is acceptable to use?

A. 2° B. 3° C. 4° D. 5° E. 7°

november/december 2011

Answers: 1 = B 2 = D 3 = D

Circle 273 14

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Calendarofevents

12-16

Wind Turbine Fundamental Hydraulics Maumee, OH Eaton Hydraulics Group Tel: 800-413-8809 http://web.fluidpower.eaton.com

12-16

Electromechanical Fundamentals Rohnert Park, CA Parker Motion and Control Training Tel: 216-896-2577 www.parker.com

14-16

3-day Variable Frequency Drives Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

1

1-day Maintenance and Hydraulic Safety Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

2-day Troubleshooting Mobile Hydraulic Systems Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

5-6

5-7

3-day AC Power and NEC Codes Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

Piston Pumps/Motors and Controls Canada (ON) Bosch Rexroth Canada Tel: 905-335-5511 www.boschrexroth.ca

5-9

5-9

Mobile Hydraulics Eden Prairie, MN Eaton Hydraulics Group Tel: 800-413-8809 http://web.fluidpower.eaton.com

1-day Introduction to Mobile Electric with Multimeters Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

5-9

Circuit Design Maumee, OH Eaton Hydraulics Group Tel: 800-413-8809 http://web.fluidpower.eaton.com

Principles of Hydraulics BAVTS (PA) Bosch Rexroth Corporation Tel: 610-694-8407 www.boschrexroth-us.com

Mobile Hydraulic Technology Rochester Hills, MI Parker Motion and Control Training Tel: 216-896-2577 www.parker.com

3-day Troubleshooting Mobile Equipment Using Hydraulic Schematics Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

5-9

6-9

7-9

“Tips and Tricks Test Taking” IFPS Web Seminar Tel: 800-308-6005 www.ifps.org

8

8

12-13

2-day Hydraulic Pump Analysis Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

Hydraulic Fluids and Contamination Control Milwaukee, WI MSOE Tel: 414-277-7269 www.msoe.com

14-16

3-day Hydraulic Fittings, Tube, Pipe, Hose and Leak Prevention Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

12-14

15-16

Hydraulic Systems Maintenance, Troubleshooting, and Failure Analysis Milwaukee, WI MSOE Tel: 414-277-7269 www.msoe.com

19-20

2-day Hydrostatic Closed Loop Systems Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

19-21

12-14

IFPS Hydraulic Specialist (HS) Certification Review Maumee, OH Eaton USA Tel: 800-308-6005 www.ifps.org

3-day Predictive and Preventative Maintenance Cincinnati, OH CFC-Solar, Inc. Tel: 513-874-3225 www.cfc-solar.com

november/december 2011

15

Productreview



Flange Ball Valve W.E. Anderson Div., Dwyer Instruments, Inc. The 3BV2FH three-way stainless steel flange ball valve meets ANSI B16.34 flange standards and features ANSI 150# flanged ends for easy installation.

An ISO 5211 mounting pad accepts direct mounting of pneumatic and electric actuators. All sizes from ½" to 4" have excellent flow rates with minimal pressure drops. The valves have a four-seat design for high cycles and increases performance from 316 SS ball and stem construction. www.dwyer-inst.com Dehydration Pumps  Glycol CAT Pumps The glycol pumps are designed to supply triethylene glycol for natural gas dehydration systems. System reliability, especially the pump, is essential to minimize production interruptions and costly equipment failures. The pumps have been field-proven in the most rigorous dehydration systems. Features include continuous-duty performance with low lifecycle costs, performances from 2.3 - 25 gpm (8.7 - 94.6 lpm), pressures from 100-2500 psi (7 to 175 bar), temperatures up to 240°F (116°C), and brass or stainless steel liquid-end construction. www.catpumps.com

Bent Axis Motor  Sauer-Danfoss The H1 160cm3 bent axis motor provides OEMs with improvements in reliability and flexibility, but also provides higher overall efficiency, resulting in lower fuel consumption and reduced life cycle costs. To withstand harsh working environments, the electrical controls are designed with an IP67 and IP69K rating. The motor is an evolution of proven technologies centered on a high displacement ratio of 32 degrees, zero degree capability, and higher overall efficiency.

Typical applications that will benefit from the new H1 bent axis 160cm³ motor are rough terrain forklifts, combines, sprayers, road rollers, wheel loaders, and road building equipment. www.danfoss.com

On-Site Multifunction  Calibrator Palmer Wahl The C150 calibrator features built-in “easy connect” terminals, portable and bench top flexibility, and intuitive embedded software. Fully protected with an external anti-shock rubber boot with IP 54 rating, it features five user-selectable languages, 0.005% accuracy over 1 year, NIST traceability, and HART transmitter compatibility. Featuring an elastomer keypad to protect the unit from dirt and grease, raised keys allow the unit to be used with gloves.

Alphanumeric keypad, navigation, and function keys allows for easily programmability, and adjustable contrast and programmable backlit display results in easy reading in all conditions www.palmerwahl.com

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

Air-Driven Liquid Pumps Interface Devices The E, H, and P Series air-driven liquid pumps offer a plug-and-play design for quick and simple installation in applications requiring hydraulic pressures from 100 psi to 10,000 psi. A built-in air regulator allows for varying inlet air pressure from 0 psi to 125 psi and a wide range of hydraulic output pressures.

The pumps consume little or no energy upon achieving the desired hydraulic pressure, and pressure is held for long periods without energy consumption.

No heat is generated while maintaining pressure, eliminating the need for larger than required oil reservoirs or heat exchangers used with electric driven hydraulic units. www.interfacedevices.com

www.fluidpowerjournal.com | www.ifps.org

productreview



Fan Drive Motors Parker Hannifin Corp.

The M5 fan motors are rated for performance at up to 4,060 psi (280 bar) in heavy-duty mobile and offhighway applications as well as portable power units.

Rated for continuous operation at speeds between 3,000 and 5,000 rpm, key features of Parker’s M5AS/ M5ASF motors include: heavy-duty bearings, tapered shaft, same motor and piping location for left or right rotation, integrated anti-cavitation valve, proportional pressure relief valve, speed sensor that allows pressure/speed monitoring, and reverse valve to reverse rotation and clean the radiator. Available in 6, 10, 12, 16, 18, 23, and 25 cc/rev fixed displacements. www.phpump.com





Hand-held Simulator and Tachometer Meggitt Sensing Systems The Endevco® model 4830A simulates a variety of transducer outputs. It verifies instrumentation settings and cable integrity in aerospace and automotive test cells, as well as other in-laboratory and field testing environments. Available output signals from the model 4830A include single-ended and differential charge (pC), single-ended voltage (mV), and currentsinking ISOTRON® (IEPE). The tachometer (TTL) output signal makes the unit a portable means of on-site instrumentation testing and servicing.

Simulated outputs are available in either English or Metric units over an available frequency range of 1 Hz to 10 KHz, with an adjustable output amplitude of up to 10,000 pC or mV pk and with overall noise of <2 mV or 2 pC rms. www.meggittsensingsystems.com

180-2 Ad:Layout 1

Expansion grippers FIPA The revamped “Expander” grippers are up to 30% lighter than and just as universal as the four existing versions due to a lightweight aluminum design. This allows for higher dynamics, especially in complex gripper systems with many expansion grippers. Another new feature is that all grippers have clamping shafts (14 to 30 mm) for connecting to the FIPA gripper construction kit and all standard systems. www.fipa.com

11/8/10

09:26

Page 1

SELECTOR VALVES 40 GPM

6000 PSI

Model DSP40-I-B

DOUBLE SELECTOR

Available with four control options: • Double pilot • Spring offset • Manual (pictured) • Solenoid Block Manufactured in the United States

FEROY CO. INC. 3220 B St. S.E. • Auburn, WA 98002 (253) 939-1363 • Fax: 939-0810 • www.feroy.com Circle 276 www.ifps.org | www.fluidpowerjournal.com

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Fluid Power

Product

focus

Continuum® Pump for Workplace Noise Reduction

R

Written by Agostino Martini - Settima

eduction of noise in the workplace has become a necessity for many companies.

By now most companies have recognized noise as one of the costs that weigh on the economics of their businesses. Noise pollution remains a serious problem to be solved for both stationary and mobile machinery. Settima Flow Mechanism, an Italian pump manufacturer, has developed and patented a “continuous contact” pump with helical rotors, capable of reaching almost imperceptible levels of noise, reaching an average of 52 dB (A). (Fig. 1) The idea originated from Mario Antonio Morselli, an Italian engineer, who had the vision of the helical rotors in continuous contact. The Continuum® pump is a patented, helical rotor pump suitable for high pressures and for various applications where the absence of noise is necessary. The continuous meshing of the helical gears allows the removal of encapsulation resulting in a dramatic reduction of pulsations.

Gear pump noise has two distinct origins: mechanical noise and hydraulic noise.

The mechanical noise is what can be expected from any pair of gears. The hydraulic noise, however, is generated by the perturbations of fluid pressure through the pump. This noise and/or vibration comes from three basic components: 1) cavitation, 2) the peak pressures that arise from trapping of fluid between the top and the

Fig. 1

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Flange Lock™ bottom of the tooth, and 3) the “ripple” or the flow pulsation during meshing that causes a pressure pulsation.

Cavitation can cause serious noise in addition to structural damage of the mechanical components. This phenomenon is tied to the average speed of the fluid in the pipes and to local changes of speed due to throttling and/or sharp changes in size of the pipes, and also due to internal friction of the fluid (viscosity).

The pressure peaks that arise from entrapment of the fluid between the top and the bottom of the tooth are a serious problem for “involute” gear pumps.

Actually, there is a rotation phase when the fluid is no longer between the housing and the profile of the teeth. In this situation, for example during the intake stroke, it causes a noise similar to cavitation. During the delivery phase, the fluid, being compressible, reaches very high-pressure spikes causing noise, vibration, and mechanical stress.

The continuous contact helical Continuum® pump has solved these problems with sophisticated and efficient systems. The transport flow is perpendicular to the axes, similar to classic gear pumps, but the profile, specially developed and internationally patented, does not trap any volume since the profiles are helical. The helical design of the profile plays the role of completing an overlap, making a gentle transmission of fluid movement minimizing the pulsation. There is just one single point of contact between the profiles during rotation, which eliminates the pockets acting on the axial thrust washer, and eliminates any noise associated with this problem. With the pump gears in continuous contact, the hydraulic noise is much lower in the Continuum® pump compared to standard gear pumps and also the noise of mechanical origin.

Stops Leaking Hydraulic lines save time • save money • save labor • save oil • • • • • • • • • • •

No tools required No expensive hardware needed No more rags stuffed into hoses No more messy plastic caps The ultimate contamination control tool One hand installation Eliminate hydraulic oil spills & clean up Quick installation & ease of usage Safe for personnel & environment Industry acclaimed 100% Made in USA

For more information contact mike Pearl at 914.980.8890 or email: mike@flangelock.com

www.flangelock.com

Circle 279

Solve motion control problems with multiple-choice answers.

RMC75 and RMC150 Motion Controllers • 1, 2, or up to 8 axes

Fig. 2

The pump is particularly suitable for machine tools such as grinders, saws, lathes, milling machines, presses, machines for plastic injection, etc., as well as mobile transport equipment such as electric forklifts and other electric lift trucks. They are also widely used in the marine industry where the low noise level on board of large yachts is required. Even in non-industrial settings such as public buildings, the pump is used for various lifting equipment, car parking, and baling and compacting of waste (which often operate at night in residential areas), and ground-handling equipment. Over 250,000 of the pumps have been sold since they were first introduced five years ago.

The pump is offered in a wide range of options, starting from minimum displacement (4cc) up to large displacements (4,400cc). It has captured the imagination of the scientific and industrial communities. The pump has been chosen among the twenty best technical innovations by the Scientific Committee of the prestigious Hermes Award held during the last edition of the international trade fair in Hannover, Germany.

For more information, please visit www.settima.it. For purchasing in North America, please contact ALA Industries Limited at (877) 419-8536.

1-2 Axis

Multi-axis

•

Synchronized control of position and pressure/ force

•

New wizards for quick, easy setup and tuning

•

EtherNet/IP and PROFIBUS connectivity

❑ Maximum yield. ❑ Lower lifecycle cost. ❑ Ease of use. Pick three.

Whether you’re retrofitting an old machine or building a new one, Delta motion controllers give you precise closed-loop control for critical industrial applications, where precision maximizes product value. Our field-proven RMCTools software makes it easy to optimize hydraulic and electric servo operations for longer machine life, and interfacing to PCs and PLCs is a snap.

So you see, it’s easy to choose the right box every time.

Just call 1-360-254-8688 or choose your controller at deltamotion.com Circle 278

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november/december 2011

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By Matt Schoenbachler, Comoso, and Dennis Ritola, Delta Computer Systems Inc.

Precise Hydraulic Controls Help Create Spectacular Special Effects for the World’s Largest Underwater Moveable Stage

E

ach platform section is moved by four hydraulic cylinders mounted symmetrically to the bottom of the lifts. The cylinders are controlled by remote valves located in the basement of the theater, beneath the pool. The cylinder rods come out of the floor of the pool (Fig. 2). Due to the construction of the theater, which incorporates multiple water-holding and dry enclosures (Fig. 4), the valves and cylinders are located a distance apart, with a huge amount of hydraulic oil (approximately 70 gallons) in the plumbing between each valve and its cylinder. The capacitance in the system resulting from the compressibility of this much oil made for a difficult hydraulic control

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Hydraulics has long had a role in theatrical productions where heavy stages and scenery need to be moved smoothly and safely. One of the most recent projects to be completed is also one of the most spectacular. The House of Dancing Water show in Macau’s City of Dreams complex, an artistic vision of Franco Dragone, the originator of Cirque du Soleil, uses eight underwater platform sections on hydraulic lifts that make up the main stage platform (Fig. 1). The platform sections can be raised and lowered to create different stage effects in and above a pool of water, which, at 3.7 million gallons, is the largest commercial pool in the world. The lifts can be moved independently, or they can be instructed to move in lock step to create a virtually unlimited set of effects. There are three additional stage entrances called vomitoria and associated hydraulic lifts that are also independently controlled. These three vomitoria can be moved in concert with adjacent main platform sections to create a seamless stage floor.

challenge. An added challenge was due to the fact that the multiple rods that move each stage platform have to move in lock step in order to avoid twisting or jamming the structure.

Projects of this magnitude frequently involve the efforts of many companies working together to build the system and solve the problems.

Controlled Motion Solutions (Comoso) of Santa Ana, Calif., an integration firm with expertise in putting together complex hydraulic systems, was hired by Handling Specialties of Grimsby, Ontario, Canada to provide the hydraulic power unit (HPU), hydraulic cylinders, plumbing, control systems, and enclosures and to perform full integration of the system into the theater.

Specifying The Components To control the hydraulics (50 total axes of position control: 32 main platform axes and 18 vomitoria axes), Comoso selected RMC150 electro-hydraulic motion controllers from Delta Computer Systems, Inc., Battle Ground, Wash.

Each controller (there are eleven in total) controls the hydraulic cylinders that operate one lift.

To select and integrate the control hardware and tune the entire system, Comoso involved Fisher Technical Services, Inc. (FTSI) of Las Vegas, Nev., a design firm that specializes in theater systems design. Comoso and their subcontractor FTSI had personnel onsite for over a year to support the installation and integration of this large system into the theater.

www.fluidpowerjournal.com | www.ifps.org

Fig. 1 (Left) View of main platform with lifts at various elevations.

Fig. 2 (Bottom) A view from beneath the lifts (standing on a dry pool floor) looking south at the row of cylinders.(Note the chrome cylinder rods on the left and right as you look south to the Central Lift.)

Comoso engineer Matt Schoenbachler designed the system. His team utilized AutoCAD Inventor to build a CAD model of the entire system including the thousands of hydraulic components involved, and worked with Parker to design a custom cylinder for the main platforms. Each main platform cylinder was eight inches in diameter with a seven-inch rod and 325" stroke (27 feet). The long stroke is required to allow the platform lifts to carry large scenery elements, including a pagoda and a 26-ton ship, which are placed on the lifts under water so that they can be raised out of the water as a magical special effect. The cylinders are fed by Parker servo-quality proportional valves. To provide a measure of its position, each cylinder was instrumented with a 27-foot-long magnetostrictive displacement transducer manufactured by MTS Sensors. The HPU that Comoso designed for the project (Fig. 3) included seven electric motors totaling 2100 horsepower driving twenty-one (21) Parker pumps www.ifps.org | www.fluidpowerjournal.com

with a capacity of 1694 gals/minute, working from a 4500-gallon fluid reservoir.

Closing The Control Loop Closed-loop motion control is needed to coordinate and synchronize the positions of the stage sections and to compensate for the compressibility of the large volumes of hydraulic oil that are used. Comoso’s engineers understood that a simple PID control algorithm would be difficult to tune in this application.

The gains could not be increased without causing the system to oscillate, and the system performance would be low. Even with low gains, starts and stops could cause the system to oscillate: the oil would act like a large spring due in large part to the distance between required between the valve and cylinder.

The PID algorithm in the motion controller needed to be augmented with an additional factor in order to avoid the oscillations.

Nathan Cross of FTSI performed the tuning on the system in consultation with Dennis Ritola, Delta Computer Systems engineer. The oscillation problem was avoided by adding a second derivative term to the control equation to damp out (reduce) the effects of changes in acceleration of the system (the rate of change of acceleration is sometimes called “jerk”).

The control equation then became a PID+D2.

Introduction of the second-derivative gain can create control problems due to the discrete-time sampling and digitizing of the feedback by the control system.

The second-derivative gain requires that the measured position feedback samples be converted to measured accelerations. This process “creates” noise in the measurements and the resulting control output. To cancel the output noise effects, Ritola recommended a low-pass filter to the control output that drives the valves. This stopped the control output noise and allowed the control axes to be properly tuned. When november/december 2011

21

the process was finished, the stage platforms moved and positioned smoothly with no oscillations.

The motion of the four cylinders on each platform needs to be synchronized to ensure that they all move by the same amount, to avoid racking of the platform frames and keep the platforms perfectly flat at all times. In fact, the system specification dictates that the extensions of the cylinders operating any lift never differ by more than 5mm dynamically while moving at a rate of four inches per second, with all eight ramps moving simultaneously. Normally, this may not sound like a tight tolerance, but one must consider the huge volume of hydraulic fluid to be moved in order to move the platforms at the rate of four inches per second (the platform surfaces are fitted with a pattern of holes to help them drain and move through the water quickly). Additionally, as the lifts break the surface of the water, the motion controllers must properly control the valves as the load curve dramatically decreases as the lift floor leaves the water.

Synchronizing The Motion Fig. 3 (Top) 3D CAD drawing of the hydraulic power unit developed by Comoso.

Fig. 4 (Left) Because of the structure of the theater, the plumbing between the valves and cylinders in the Dancing Water theater can contain as much as 70 gallons of hydraulic fluid.

AMETEKAPT10017-eBrick-Hor:APT10017

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To meet the requirement for coordinated motion, the Delta controllers support a special synchronization function that allows some or all of the axes that the RMC150 controls to be configured as slaves, under the control of a master axis or a master input coming from an outside control source. In the case of the Dancing Water system, the motion of each lift cylinder is tightly controlled by the RMCs that are slaved to follow commands from a master PLC. The

The new 955 eBrik linear displacement transducer.

Price and performance so well balanced, it just might displace potentiometers.

At last, there’s a purely electronic solution to position sensors.

Our new 955 eBrik uses magnetostrictive technology so there’s no contact, no moving parts, nothing to wear out. No erratic position signals. Available in 1" to 72" stroke lengths, it’s economical and versatile enough for many applications, field programmable, and the perfect replacement for old-style potentiometers. Learn more at our website.

ametekapt.com Circle 280 22

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MTS transducers

By Matt Schoenbachler, provide the position Comoso, and Dennis information for each Ritola, Delta Computer cylinder, and the DelSystems Inc. ta controllers close the control loop by sending precise commands to the proportional valve. Mike Wardle, an application engineer from MTS, worked with Delta to ensure the long, 325” MTS probes worked well with the fast, real-time updates that the Delta RMC Controllers used to deliver high-performance servo control. Though each RMC150 can control up to eight hydraulic axes, each controller is handling four axes of the main lifts, or six axes of the vomitoria in the Dancing Water application.

Fisher Technical’s Navigator software package was run on a single PC that was connected to the Delta RMC controllers via Ethernet. The Navigator software controlled the entire show sequence, which included issuing commands directly to the Delta RMCs. The initial programming and development tasks were made more efficient and quicker using the motion simulator that is built into the Delta controllers. Using the simulator, any number of “what if ” scenarios can be tried out, and the motion can be tuned without risking damage to the equipment or endangering workers. The RMCTools software that supports the controllers contains a powerful, easy-to-use plot manager that produces a graphical representation of parameters including comparing target with actual motion values for use in tuning positions and speeds by adjusting the gains used in the control loops.

The smooth motion and precise positioning created by the controllers operating Comoso’s valve stands far exceeded the expectations of the show’s production staff.

Where the initial requirement was to be able to position the stages in some simple configurations, the producers learned that through the precision and programmability of the hydraulics, more special effects were possible.

“Initially, they didn’t comprehend the magnitude of what the system could do and that the system could do more than the basic requirements,” said Matt Schoenbachler of Comoso. “Because of the capability of the motion controllers and overall system design, Dragone had the capability Fig. 5. Delta to add more dynamic moves for the Computer designers to choose from in making a Systems' RMC150 multiworld-class show.” axis motion controllers with SSI feedback were used in the House of Dancing Water to control each stage platform section. The controllers interfaced to a programming PC and a controlling PLC via a built-in EtherNet/IP interface.

For more information, visit www.deltamotion.com.

Avert Fluid Leak Disasters!

Some industrial fluid systems operate under extremely high pressure. So leaks can not only lead to equipment breakdown and production delays, but serious personal injury as well. Fortunately, there’s the Spectroline® OPK-340 Leak Detection Kit. It’s the most effective, efficient and safest method for finding leaks in hydraulic, oil, water and water/glycol-based industrial systems. And best of all, it finds these leaks long before disaster strikes!

Kit includes: • OPTIMAX™ 3000 super-high intensity cordless, rechargeable blue light LED leak detection flashlight • 16 oz twin-neck bottle of patented OIL-GLO™ 44 concentrated fluorescent dye for synthetic and petroleum-based oils and hydraulic fluids • 16 oz twin-neck bottle of WD-802 concentrated fluorescent dye for water-based systems • 8 oz spray bottle of GLO-AWAY™ dye cleaner • Smart AC and DC chargers, fluorescenceenhancing glasses and a rugged carrying case.

To learn more, call 1-800-274-8888 or visit: www.spectroline.com

ISO 9001:2008 CERTIFIED COMPANY

Circle 282

INSERTA® MODULAR CONNECTORS

ADD FLEXIBILITY TO A PIPING SYSTEM WITH OUTLET OPTIONS: REDUCED SIDE OUTLET FLANGE PORTS SAE THREADED O-RING AND NPTF PORTS © 2011 Inserta Products, Inc.

Inserta Products, Inc. Circle 281

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My

How to Keep Tabs on a Hydraulic Machine’s

“Vital Signs”

By Brendan Casey HydraulicSupermarket.com

wife often asks me why I still do consulting work.

She wonders why I happily leave the comfort of my office at times to crawl all over hydraulic equipment.

Well for one, I actually enjoy it. Two, it keeps me sharp. But perhaps most importantly, it keeps me in touch with the issues that hydraulic equipment users grapple with.

One of the things I’ve learned over the years is in the early stages of a consulting assignment, it’s better to ask good questions rather than dispense good advice.

A recent client had a series of catastrophic pump failures. These pumps were achieving less than half their expected service life. So naturally, they wanted some answers. At our first meeting, the client opened proceedings with a brief history on the machine, an account of the events leading up to the failures, and then pushed a stack of oil analysis reports across the table.

After I finished taking notes on what I’d just been told, I fired off my first question: “What is the system’s normal operating temperature?”

Stunned silence. Client shrugs his shoulders.

“O-K … what’s the system’s usual operating pressure range?”

Blank look from client … “Err… dunno … we don’t monitor either of those things.”

At the end of the meeting we took a walk through to the control room. Both operating pressure and temperature were displayed on the default PLC screen – albeit along with a lot of obviously more important production information. Say no more.

But could YOU answer these two basic questions about the “vital signs” of the hydraulic equipment you maintain, repair, or support? If not, I strongly recommend you make the effort to get to know your hydraulic equipment better.

This information is easy to collect, can give valuable insight to the health of the machine, and is essential data if failure analysis is required. Here’s how I recommend you do it:

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Meet challenging design requirements by using servo technology engineered to enable ever-greater achievements. That’s the kind of longevity and endurance assurance you can count on when you specify Woodward servovalves and actuators for your motion control applications. Increase productivity, reduce maintenance, and make a responsible choice for the future.

Look to Woodward for solutions today and no sacrifice tomorrow.

Take Control with Woodward 25200 W. Rye Canyon Road, Santa Clarita, CA 91355 (888) 659-4229 www.r-ddv.com Circle 283

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First you need an infrared thermometer, also called a cause. If on the other hand, the exchanger is only rejecting Date 06-02-11 06-03-11 heat gun. If you don’t have, you’ll need to invest around 10 kilowatts of heat, which in this example equates to 10% Time 0640 1615 $100 to get one and then familiarize yourself on how of input power, then it’s likely there’s a problem in the coolAmbient Temperature (°C) 11 39 to use it. Next, using a permanent marker or paint ing circuit. Or there’s insufficient installed cooling capacity. stick, draw a small target on the hydraulic tank below Next, if not already available, install a pressure gauge Operating Pressure 3000 2900 minimum oil level and away from the cooler return. or transducer to record operating pressure, and if the Charge Pressure 270 250 Label it “1”. This marks the spot where you’ll take your system is a closed-circuit hydrostatic transmission, (1) Tank Temperature 30 58 tank oil-temperature readings. install a similar device to record charge pressure.

By the way, the idea behind these “targets” is that With that done, now draw up a table like the one (2) Transmission A 41 60 regardless of who takes the temperature readings they’ll below to record the date, time, ambient air temperature, (3) Transmission B 44 65 be taken from the same place each time. operating oil temperatures, and operating pressure(s).

(4) Exchanger In 64 If the system is a closed-circuit hydrostatic Note that there is little point in recording the temperatransmission, mark a convenient location on each leg ture drop across the heat exchanger if the fan or water (5) Exchanger Out 53 of the transmission loop and number them “2” and “3.” pump isn’t running. And charge pressure is only relevant Exchanger ΔT 11 Skip this step for open circuit hydraulic systems. to closed-circuit hydrostatic transmissions (Table 1).

Fan On Yes/No No Yes Next, mark a target on the heat exchanger inlet and In terms of compiling this data, it’s a good idea to outlet and number them “4” and “5” respectively. This take readings on the hottest and coldest days of the year records the temperature drop across the exchanger. The and on a couple of average temperature days in between.

Table 1 benefit of doing this is, if the oil flow rate through the This provides a baseline of information. Beyond that, exchanger and the temperature drop across it are known, the heat rejection of the taking readings at regular intervals—each day or shift for example, can provide early exchanger can be calculated. warning of impending problems. And if the system starts to give trouble, taking a And if the system IS overheating, knowing the actual heat rejection of the set of readings will reveal if it’s operating outside its “normal” parameters. exchanger can help determine whether the problem is the result of an increase in heat load—due to an increase in internal leakage, for example—or whether the About the Author problem lies in the cooling circuit itself.

Brendan Casey is the founder of HydraulicSupermarket.com and the author of For example, if a hydraulic system with an input power of 100 kilowatts is overheatInsider Secrets to Hydraulics, Preventing Hydraulic Failures, Hydraulics Made Easy and ing, and the calculated heat rejection of the exchanger (based on the recorded temperaAdvanced Hydraulic Control. A fluid power specialist with an MBA, he has more than ture drop across it and design flow rate through it) is 30 kilowatts, then the efficiency 20 years experience in the design, maintenance, and repair of mobile and industrial of the system has fallen below 70%. And therefore, an increase in heat load is the likely hydraulic equipment. Visit his Web site: www.HydraulicSupermarket.com.

Most people have heard about the phenomenon called “cavitation” . . . . . . very few have actually seen it!

Demonstrate everything that causes cavitation: • Discharging above oil level • Oil starvation • Aeration • Vortex Featuring: Transparent, backlit tank, suction and pressure lines, and full instrumentation . . . the most visual cavitation simulator in existence!

Model MF200-CAV 2170 SOUTH 3140 WEST WEST VALLEY CITY, UT 84119 PH: 801-908-5456 www.fpti.org

Distributor enquiries welcome

Circle 285 www.ifps.org | www.fluidpowerjournal.com

Circle 287 november/december 2011

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productspotlight

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Special Advertising Section

Conventional valves, repair & reconditioning

Stops Leaking Hydraulic LInes

The Yuken LSV(H)G Linear Servo Valve

Save Time • Save Money • Save Labor • Save Oil • No tools required • No expensive hardware needed • No more rags stuffed into hoses • No more messy plastic caps • The ultimate contamination control tool • One hand installation • Eliminate hydraulic oil spills & clean up • Quick installation & ease of usage • Safe for personnel & environment • Industry acclaimed • 100% Made in USA

The Yuken LSV(H)G Linear Servo Valve is the  fastest production servo valve on the market

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with high end response of 450 Hz (+/- 25% signal) up to 10 GPM, 100 Hz (+/-25% signal) up to 400 GPM, 75 Hz (+/-25% signal) up to 900 GPM. The valve is reliable with high contamination resistance, high vibration resistance and a low mechanical wear design. On board electronics are available, as well as separate from the valve. For more information on this and other solutions, contact the reliability experts at ALA Industries, Limited.

Yuken – Master Distributor ALA Industries, Limited

Flange Lock™

www.yuken-usa.com Tel. (877) 419-8536

Contact Mike Pearl at 914.980.8890 or email: mike@flangelock.com www.flangelock.com

MODULAR CONNECTORS

ADACONN® UNIFIED SERIES FLANGE ADAPTERS



The domestic Adaflange Unified Code 61 4- bolt flange  adapters are one piece, all steel construction, with higher

Inserta® Code 61 and Code 62 4-Bolt Modular Connectors can be customized with optional outlets in order to add flexibility to piping systems. Reduced size flange patterns can be provided on side outlets. Threaded SAE O-ring and NPTF pipe ports are also available on these steel modules. Gauge and test ports can be provided on any custom or standard modular connector.

Inserta® Products

Blue Bell, PA www.inserta.com 215.643.0192

TM

yield strength material specified to reliably meet most hydraulic system pressure requirements.

‘Jump Size’ JIC adapters are available in most sizes to closely match adapter flow porting with the mating flange port. Reducing sizes are also now being made available as off-the-shelf standards.

Very compact manifold and component porting can be made with simple drill and tap operations, eliminating the need for cavity form tools.

ADACONN®

Blue Bell, Pennsylvania www.adaconn.com • 215.643.1900

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Special Advertising Section | Product Spotlight

The Ultra Clean UC-EL 1.25 Economy Launcher The ULTRA CLEAN UC-EL 1.25 Economy Launcher offers a fast, less  invasive way to clean contaminated hydraulic lines by shooting an Ultra Clean Projectile through the hose or tube assembly. The Ultra Clean Projectile strips out internal contamination, removing dirt, gunk and oil. Take your best shot with Ultra Clean!

For more information contact: Ultra Clean Technologies Corp.

314

746 Shiloh Pike Bridgeton, NJ 08302 Phone: 800-791-9111 or 856-451-2176 Fax: 856-453-4975 E-mail: sales @ultracleantech.com www.ultracleantechnologies.com

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NEW MOTOR MODEL BME • Interchanges with White model RE and Parker TG • 11 Displacement sizes from 7.63 to 45.78 cu. In/rev.

• Various Flanges and Drive Shaft Options • Needle Shaft Bearings • Competitive Pricing • Available with relief valve

Motion Controllers Enable Networked Hydraulic Systems



Delta Computer Systems, Inc. announces the addition of PROFINET IO as another communication option for the company’s RMC75 and RMC150 closed-loop electro-hydraulic motion controllers. Customers now can choose options such as PROFINET IO, PROFIBUS DP, EtherNet/IP or many other protocols for communication with PLCs and other systems.

For more information contact: Delta Computer Systems, Inc.

For additional information call: Phone: 864-638-5544 Fax: 864-638-0005

1818 SE 17th St. Battle Ground, WA 98604 Phone: 360-254-8688 www.deltamotion.com

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Bag or Cartridge Filter Housings

turnkey hydraulic data acquisition package

cost filter housings perfect for lube, oil, and coolant  Low applications. Model NCO housings provide large dirt-holding



capacity combined with a rugged design rated to 150 psi. The housings incorporate an eyenut cover that is easily removed, reducing time spent on bag or cartridge change-out. The NCO bag housing offers versatility for any piping arrangement, utilizing our unistyle design (side and bottom outlet). Two connection sizes are available for both bag and cartridge filters.

Rosedale Filtration Products, Inc.

3730 W. Liberty Road, Ann Arbor, MI 48103 800-821-5373 734-665-8201 Fax: 734-665-2214 www.rosedaleproducts.com filters@rosedaleproducts.com

The C2000 is a turnkey hydraulic data acquisition package that will display, log, store and report test results tailored to the needs of the user. The C2000 allows the operator to produce test certificates with graphs at the touch of a button with full ISO9000 traceability.

The C2000 is fully scalable up to 64 inputs including flow, pressure, temperature, speed, contamination, torque & other analog inputs.

Webster Instruments

Division of Webtec Products Ltd. Phone: 800-932-8378 / 414-769-6400 www.webster-inst.com

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november/december 2011

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Product Spotlight | Special Advertising Section

Global Servo Hydraulics has been  specializing in the sales and service

of all Servo and Proportional valves for over the past 20 years. We pride ourselves in offering 100% Guaranteed Reliable and Quality Service. We provide Competive Pricing, Free Evaluations, Free 24 Hr. Emergency Service, along with a 1 year, in service warranty.

Global Servo Hydraulics, Inc.

800-673-4745 www.Globalservo.com

High Torque, Low Speed

321

319

0

10

20

15

DIAPHRAGM

25 0

3

DIAPHRAGM INSTRUMENT

100% Guaranteed Reliable and Quality Service

RANGE SPRING PISTON MAGNET POINTER ROTARY MAGNET

FOLLOWER POINTER

320

GX-100

DP Range : 0 to 0.75 upto 2 bar

0 to 10 upto 30GAUGE psi NEW LOW COST DIFFERENTIAL PRESSURE

Specifications Accuracy ±5% of FSD (Ascending) Hydraulic Differential Pressure Inc.highhas introduced Migration No migration ; Zero Plus, leakage from to low port Range 0-0.75 uptoto2 bar/psi dual scale a new gauge monitor filtration of natural High and Low pressures are First marking on the scale 15% of the FSD Western FluiDyne high low speedSe gas. The GX-100 has a diaphragm sensor to claim separated by atorque, sensor assembly nsing element Diaphragm consisting a magnet, diaphragm hydraulic motors are a ofcost effective, form, fitWetted parts zero bypass of Bodyparticulates, material, SS 302 spring, diaphragm & ceramic magnet and comes standard and a range spring. The difference steel (SS 304) and function interchange forcauses the the common brandsCase material with bottom ¼Stainless in NPT connections, and a follower in pressure assembly to Dial size in inch (mm) 2.5”(63) move proportion to the change of motors. Hundreds ofindisplacements and modelMounting pointer for display Direct of differential pressure at peak against the range spring. A rotary ng pressure bar. variations of themagnet, popular “H”, “S”, and “2000”Maximum workiflowrates.

The100 stainless steel 2.5 inch diameter case 0 located in a separate body Maximum process temperature 80 C series are incompartment stock. Customer Service isBody material is also standard, and isolated from the allowing for the lowest cost entry Aluminium pressures, is rotated by Seals diaphragm &”O” available to acting provide technical information into this field. Buna-N, WhileViton designed forrings the gas industry, magnetic coupling as per the linear Window Acrylic and assist movement in model code selection or of the sensor assembly. suited for many other applications Connection the GX-100 is well 1/4” NPT(F) Std. opt iona l 1/4” BSP(F) Porting Bottom interchange.A pointer attached to the rotary where filter condition must be maintained. magnet indicates differential Protection for gauge IP 65 pressure on the dial.

Over range protection Up to the max. working pressure from high side only.

Western FluiDyne 5 10 15 20 Pressure Inc Caution: Never Differential pressurize only LP side beyond 25 Plus bar.





BASIC OPERATING Motors PRINCIPLE

For additional information contact us at: 586-296-7200 or sales@westernfluidyne.com www.wfdyne.com 25

0

100 psi

80 psi

Sensor magnet

High

Low

Rotary magnet and pointer

Contact Bruce Dokurno at 203-481-2545 for more information.

Options: Customer logo www.differentialpressure.com Gauge will be supplied along with red follower pointer.

Colour band ( Available in single scale only) How to order

METRIC TUBE & PIPE sizes in socket weld and butt weld are also available. Many can ship directly from stock. If not part of our 7000+ in-stock products, MAIN can manufacture and ship quickly- (4-5 days) is common from our US facility.

GX-100 Acrylic XX 2.5 2.5" (63mm) XX SS SS304 with a rubber ring(standared) 1.0 1.6 2.0 Cylinder is rated The Industries Heavy Duty XX bar H6 0.75 10 15 24 30 Psi for 3000 PSI and features 1½ to 20” bores standard, 22 6 Porting XX 3 Bottom (Std.) different mounting options, 7 Connection XX 4N is JIC-NFPA 1/4" NPT(F) Std. interchangeable, and BSP (F) on request can be customized with4Bnearly1/4" limitless combinations of rod ZZ Special connection through adaptors ends, cushions, couplers, seals, and ports – all backed by our 8 Seal X B Buna-N (Std.) X V Viton on request legendary warranty and repair capabilities.

MAIN Manufacturing Products, Inc.

Yates Industries

Phone: (800) 521.7918 E-mail: info@mainmfg.com

23050 Industrial Dr. E. St. Clair Shores, MI 48080 586-778-7680 O 66 www.yatesind.com 50.7

Mount the instrument at least 50 mm away

1

Series

3 4 5

Dial Size Case Yates Rang

XX

2 Window Cylinder X A from ferro magnetic surfaces, else it may H6 Heavy BSPP, BSPT, ISO 6149 Hydraulic Flanges & Couplings Duty show incorrect reading.

MAIN Manufacturing Products, Inc. now stocks SAE, JIS,  DIN, and ISO flanges and couplings with metric ports.



STANDARD CASE

322

323 34

32

51 57

54* 77

1/4" NPT

85

* 55.0 If required by customer

Specifications are subject to change without prior notice.

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november/december 2011

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Special Advertising Section | Product Spotlight

TORQTITE Adjustable Torque Wrenches

Fast Simplified Cylinder Ordering

new adjustable open-end torque  Flaretite’s wrenches allow all tube and hose ends to

model HP, MH and LM cylinder Configurators  Peninsular’s accessible through Peninsular’s website at www.

Peninsularcylinders.com make cylinder ordering easier because customers answer questions from drop down menus eliminating the need for confusing cylinder catalogs and complex engineering data. “Helpful hints” answer all user questions that may arise.

A solid model and corresponding part number appear once configured. Instant solid model and 2D flatline drawings with dimensions may be instantly downloaded and instant quote requests included.

be precisely tightened to their correct torque recommendations. These new wrenches fill a void across all industries where fitting connections are used. Developed to compliment Flaretite’s patented flared seals for 30, 37, and 45 degree flared fittings, these new wrenches are used by quality conscious mechanics in hydraulics, pneumatics, pharmaceutical, chemical, medical and environmental industries.

Torqtite wrench benefits: • Adjustable torque settings from 10 - 420 Nm (8 – 310 lb-ft) • Adjustable Hex size (jaw opening) from 7/16" thru 3" • Low profile, reversible, spanner design • Precision quality design with +/- 4% accuracy • Supplied with torque rating tables for most common fittings

Peninsular Cylinder Co. Inc.

Toll Free: 800-526-7968 Phone: 586-775-7211 Fax: (586) 775-4545

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For more information contact: Flaretite Inc.

Fenton, MI, USA • Ph: 810-750-4140 www.flaretite.com

Feroy Co. Model DSP40 Selector Valve

 324

Feroy Co. Model DSP40 Selector Valve. Rated at 6000 PSI and 40 GPM, this valve is available in two versions. The double selector version allows the control of two motors in a hydrostatic circuit. The series parallel version allows two motors to operate in either low speed/high torque or high speed/low torque mode. Spool can be shifted manually or by pilot.

Feroy valves are in use on directional drilling equipment, augers, winches, and mobile equipment attachments.

Feroy Co. Inc.

Auburn, WA • www.feroy.com

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Product Spotlight | Special Advertising Section

8901-D Series Control Grip

“B” FLANGE, 3GB SERIES SINGLE PUMPS



Now available from stock…..Honor 3GB series pumps

Cyber-Tech, Inc introduces our new 8901-D Series control grip.

Made from Die cast aluminum, this control grip will withstand today’s industrial market needs.

Gear Pumps Corp. of Taiwan, with U.S. warehouse  inHonor Houston, Texas, is pleased to announce the immediate availability of their 3GB series, “B” flange pumps. Double pumps in this series are also available subject to production lead times from Taiwan. OEM inquiries through distributors are welcome.

• Standard pushbutton configurations are: 0, 2, 4, or 6 • Standard rocker configurations are: single rocker, dual rockers, single rocker + 2 pushbuttons or dual rockers + 2 pushbuttons.

• Proportional options available: pushbutton, triggers, rockers and thumb wheels.

• Nine trigger solutions ranging from a Single Triggers to a deadman Lever.

• Easily mounted to any joysticks.

• Custom option available.

3G cast iron covers, and the extruded aluminum body, combine to offer excellent performance up to 3500psi and 3000 RPM. Stock displacements are 2.31, 2.68, 3.17, and 3.66 cu.in./rev.

Other displacements are in the works. 2DG double pumps are also available from stock.

Honor Gear Pumps Corp.

Cyber-Tech, Inc.

1.800.621.8754 www.cyber-tech.net

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Honor Pumps U.S.A. 1601 W. 25th St. Houston, TX 77008 Toll free: 800-984-9727 Local: 713-984-8144 Fax: 713-461-9631 Email: service@honorpumps.com Web: www.honorpumps.com

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WORLDWIDE ELECTRIC:

The Leader In SuppLyIng eLecTrIc MoTorS To The hydrauLIc InduSTry ElEctric Motors For Hydraulic PowEr units & FiltEr carts • The market leader in:

Totally Enclosed Fan Cooled Power Unit Motor

- lowest price - product quality - best customer service • Application specific motor products

56C Frame Filter Cart Motor Explosion-Proof Power Unit Motor

• 2 year “no-fault” warranty • Customer service & field support C-Flange Mount Round Body Motor

service with decades of experience

PLEASE CALL TODAY FOR A PRICE LIST & FREE CATALOG WorldWide Electric Corporation

1-800-808-2131 Ext. 3 ● www.worldwideelectric.net Circle 286 30

november/december 2011

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Special Advertising Section | Product Spotlight

MODULAR STACK VALVES...D03...D05

 330

YOULI HYDRAULIC DIRECTIONAL CONTROL VALVES Pneumatic Operator option…..now available:



Youli directional control valves, rated to 4600PSI, monoblock or sectional styles, are now available with pneumatic operators, in nominal flow ratings from 12GPM to 37GPM. Electrical operators are also available. Youli quality is based on 25 years of industrial hydraulic valve manufacturing for the machine tool business in Taiwan. A quality product line with a major commitment to inventory in Houston, Texas, and offered at competitive prices, is our growing reputation.

Power Valve U.S.A. represents, as factory warehouse and sales office, a Taiwan manufacturer of D03, D05, D08, and their Modular stack valves product line. With inventory in the Houston warehouse, all products are competitively priced, and machine tool quality. In fact the parent company, Tai Huei Oil Industry Co., Ltd. has been selling valves for over 25 years to the machine tool industry in Taiwan. All standard AC and DC voltages are available, and all standard spool configurations are in stock.

Special spools are available. Pressures to 5000psi and flows from 16gpm (D03) to 132gpm (D08) are standard. With inventory on the shelf and very competitive pricing, we invite your inquiry.

Power Valve U.S.A.

Contact the company at 1-888-862-1064 or e-mail to service@powervalveusa.com View basic specifications at www.powervalveusa.com

Youli Hydraulic Industrial Co., Ltd.

Contact the company at 1-888-330-8041 or email to service@youli-america.com View basic specifications at www.youli-america.com

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DO NO UB "A W I LE P A" N B UM & O P "A TH S "

B Flange Pumps Now In Stock

Circle 288 www.ifps.org | www.fluidpowerjournal.com

Circle 284 november/december 2011

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H

ydraulic applications are here to stay, contrary to the belief that the electric industry will be a threat. The electric industry has become more of a partner to hydraulics. Electrics and electronics have become the brain to what hydraulics accomplish in this digital world, and future electrohydraulic applications will only likely grow at a rapid pace.

Within a given envelope size, the hydraulic elements, particularly pumps and motors, are far

more compact and smaller than the electric prime mover (motor) in size, shape, and weight. In addition, in the area of weight-to-horsepower ratio, hydraulic products score ahead of electric prime movers.

HYDRAULIC PRODU

THE REPLACEMENT A Comparison Between Same Size Horsepower Electric And Hydraulic Motors

In today’s industry, all hydraulic products are much more compact and versatile, with infinite features to meet with application demands. The prime movers in hydraulics, particularly the pumps, have been at the pinnacle of design improvements. By comparison, the electric industry has also moved way up, but more towards control than the prime movers. Electrical proportional controls in this digital world could make servo controls a design of long past.

However, the hydraulic industry and electric industry have an entirely different kind of replacement market potential due to the following factors: • Duty cycle • Frequency of use • Usage pattern • Maintenance needs • Use and abuse Considering the above factors, and there may be a few more hidden ones, electric maintenance needs less attention than hydraulic elements, particularly pumps and motors, and more so in mobile applications such as construction and agricultural equipment. Therefore, hydraulic elements need constant attention as they affect the productivity of the given machines and equipment if not attended to correctly in a timely matter.

Electric products, particularly electric motors, are a commodity product and are a century-old technology, which is understood and repaired by every repair house 32

november/december 2011

in the nook and corner of the globe. Not so with hydraulic pumps, motors, and other elements. Expert and agile attention is always required to run and maintain a hydraulic application, of any nature.

As always, hydraulic product replacement market potential consists generally of three categories of groupings: 1. Current design momentum products with at least 1-2 years in the field.

2. All pumps in current production ranging over 12,000 to 15,000 actual working hours.

3. All classic and obsolete products no longer manufactured.

In the 21st century, we are seeing an increase in oil hydraulic applications in every wake of our engineering marvels and industries. We will continue to see this progress in many more years to come, considering the current trend.

With the advent of our digital world and introduction of new digitally controlled sensors and computer chips, the hydraulic pumps and motor controls are only going to be more sophisticated, reliable, and less failure-prone. However, when they fail, they need a quick replacement to maintain the chain of productivity. The field population of most dynamic hydraulic products (pumps and motors) is insurmountable and will skyrocket in the days and years ahead as the industrial population grows.

Therefore, it is time for all hydraulic product manufacturers to take stock of these potential opportunities and serve the end-user to maintain a solid industry productivity and ground for revenue and earning.

When an excavator or an injection-molding machine is down for want of a pump, motor, or any other hydraulic element, the machines are not excavating the earth www.fluidpowerjournal.com | www.ifps.org

By P. K. Gu ha

UCTS AND

T MARKET and molding an automotive body or plastic bucket. This results into a colossal loss in production and productivity. This, in essence, even affects the nation’s GDP. This is where the product manufacturers must reach out to the end-user through the chain of their distributors, sub-distributors, their own repair houses, industry repair houses, and retailers to the end-user within less than 24 hours anywhere in the world.

Currently, the majority of hydraulic product manufacturers are happy to be servicing the OEMs (equipment and machine manufacturers). They primarily leave the end-user service support factors either with their distributors or the equipment manufacturers.

This is a good strategy, as long as the supply flow and availability of the replacement products and parts thereof are available instantaneously. This is where there is a big hole.

In reality, given the huge size of the replacement market potential, the availability of genuine and quality replacement products/parts are far below the enduser’s needs. This has created an insurmountable void, which resulted in a score of equivalent “will-fit” hydraulic product manufacturers around the world, as well as having mushroomed numerous organized and unorganized repair houses, all across the globe, to fill the void created by the original hydraulic product manufacturers.

Some of these “will-fit” manufacturers, as well as “non-manufacturer repair houses” are good and know what they are doing. Therefore, one simply cannot discard them as substandard product and repair houses.

“Will-fit” sources are a century-old phenomenon and so is the word “repairing.”

These services and activities in the hydraulic world are there to stay for a long haul.

How strategically the original product manufacturers and OEMs work around these bottlenecks to gain their own created market share is dependent upon how service-oriented and hungry they are and how well they protect their patents and their willingness to serve the end-users. www.ifps.org | www.fluidpowerjournal.com

The equivalent products may or may not always be working like the original genuine product, but they are doing a great service to the industry. In a way, they are keeping the productivity of the industry going (even if it is at a lower efficiency) and helping the industry from a “stand-still” situation. Nevertheless, when lowerefficient hydraulic products are reused, there could be a possibility of higher energy consumption. This is a factor that product manufacturers and OEMs always should keep in mind while planning how to serve the end-users and how to create a better market share for themselves.

The hydraulic product replacement market will only be growing in the future; therefore, product manufacturers and equipment manufacturers should take stock of the situation and adopt a new productive approach to reap the benefits of this humongous replacement market potential.

Distributors for both the product and equipment manufacturers are a direct link to the service market. Each of these distributors must have a reasonably wellequipped service repair shop. If a product manufacturer does not have such qualified distributors, they need to be groomed or an equivalent arrangement could be made to ensure that the service revenue comes to the product/equipment manufacturers, even if it is through the “will-fit” centers. The idea and planning of service revenue should start at the product design stage. The life and mortality of the product should be taken into account at the production and inventory planning point.

There are lots of different ways the above could be achieved. The following are a few: • Constant replacement aftermarket analysis • Better production planning of a given type of product • Coherence between product and equipment manufacturers, at least the key big ones • Establishment of one main central service center • Continuous training of distributor repair houses • A relationship with independent retail repair houses across the globe, through the authorized distributor repair houses.

All of the above will bring about the following rapid results, as well as meeting the demands of the growing end-users and replacement aftermarket.

• Lower margins by selling to OEMs will be greatly compensated, which is good for market stock value for the original manufacturers.

• Original product manufacturers have created the replacement market with the help of the equipment manufacturers. They own this potential revenue.

• End-users are satisfied with quick service and better quality as well as lower downtime.

• Better coordination exists between product and equipment manufacturers, as well as between authorized distributors and the industry’s retail repair shops/ freelancers.

Cultivation of the hydraulic replacement market is a global phenomenon, and as such, this needs to be handled that way to reap the potential benefit. The most important factor in servicing this growing hydraulic replacement market (the enduser) is to reach out to the end-users, as fast as you can, with as much as you have, just the way many actual wars are won these days at the Battlefront.

For more information, contact P.K. Guha at

pguha aol.com. @

november/december 2011

33

Basic Vacuum There are many types of vacuum cups available for use in vacuum pick-andplace systems. Some are designed with a particular application purpose while others are simply designed to offer a range of similar style models to the vacuum user: single bellows models from 5 mm through to 50 mm diameter, for example. This article is a basic explanation of fundamental cup choice to guide the user to a good starting point in a manufacturer’s catalogue index.

t

here are many shapes and sizes and also material choices, but fundamentally most vacuum cups offer the same end result: lifting of a load. The selection of a vacuum cup is often based on the weight of the part being handled.

Although a sensible starting point, users often don’t realize the incredible amount a vacuum cup can lift until they work out the math. Even the smallest of vacuum cups offers a significant holding or lifting force.

Put simply, it’s rare that vacuum cups are not lifting because they are too small in size. It’s normally because of poor cup selection that is unable to seal against the load, or the vacuum generator is undersized, which in turn is unable to offer adequate vacuum flow in a circuit.

To calculate the holding or lifting force of a vacuum cup, two things are required: surface area of the cup plus the vacuum level being produced within it when it is sealed against the load.

The area of the vacuum cup is easy to calculate. If it is square, it is the length multiplied by the width. If it is round, use the equation πr² (pi x radius of the cup squared). [e.g. a 4-inch diameter cup has a surface area of 3.142 x(2x2) = 12.568in².]

Fig. 1 demonstrates the only dimension this is applicable to: the sealing lip.

What is important to understand is that the shape or height of the vacuum cup does not influence the lifting force. It is the amount of higher atmospheric pressure pushing down on the cup illustrated in Fig. 2.

34

november/december 2011

Fig.1

Fig.3

Condition One is the vacuum cup at rest without the vacuum-generating device connected. When the vacuum generator is turned ON (Condition Two), the cup is “pushed” down onto the work piece and the corresponding atmospheric pressure underneath the work piece pushes up. The work piece is now “clamped” by the two higher atmospheric pressures.

If the atmospheric pressure is 14.7 psi (pounds per square inch) and the atmospheric pressure has been reduced by 10 psi (a vacuum is the difference between two atmospheric pressure levels), the differential pressure offers a holding force of 125 lbs when using a Ø4" vacuum cup (12.568 x 10). If the differential is higher (more vacuum), then the holding force is increased and consequently lower if the differential is less.

It does NOT matter what shape the vacuum cup is. It is the surface area of the sealing lip that determines the holding force.

Figs. 1 and 2 show a “flat” cup. One of the most popular cups, particularly in models less than Ø2", is a bellows cup. The single biggest advantage of a bellows cup over a flat cup is the compliance it offers in height adjustment. A flat vacuum cup has to be positioned accurately in a pick-up and put-down application, whereas a bellows cup offers its own level compensation in its design. In destacking or stacking applications where the datum point is continuously changing, the bellows cup is particularly beneficial. Fig. 3 demonstrates this height difference indicated by “X”. Depending on the design of bellows cup and of course the amount of bellows, these cups can offer considerable compensation for height variance of the load being handled.

www.fluidpowerjournal.com | www.ifps.org

Cup Selection

by Dan Pascoe

Fig.2

Fig.4

Daniel Pascoe is General Manager of Vacuforce Inc, manufacturer and distributor of vacuum components and systems for industry in North America. Daniel can be reached via the Vacuforce Web site at www.vacuforce.com, or directly at dpascoe@vacuforce.com.

You can also find Vacuforce on Facebook.

The most common material is NBR, or Nitrile rubber. This material offers a The disadvantage of a bellows cup compared to a flat cup is the stability of the very good starting point in respect to Durometer, which is normally about 50-60 workpiece during transfer. The flat cup offers a datum face to locate the workfrom most manufacturers. Silicone and natural rubber tend to be softer, but do piece securely, which is particularly important during lateral movements such as not offer the wear resistance of Nitrile rubber. in steel plate transfer on a stamping line, for example. Furthermore, a bellows cup Most vacuum cups will work, and most materials will offer basic performance. should not be used in vertical lift application as shown in Fig. 4.

However, the correct selection of style and compound will offer considerable Even though the workpiece is clamped against the cup, the possibility of the savings in production, life, and reliability. There is lots of choices, but as in most part wanting to swing or “peel” away from the cup during the lift cycle is greatly component choice, basic criteria such as the aforementioned gets the user very increased as the cup does not locate the workpiece securely against a datum face, close to final selection very quickly. unlike a flat cup.

Material choice is relevant for a number of reasons. The most common reason for material choice is based on the need for flexibility to deform against conThis article is intended as a general guide and as with any industrial applicatoured or rough surfaces where a softer compound is required or where the matetion involving machinery choice, independent professional advice should be sought to rial needs to resist chemicals on the surface of the workpiece such as oil in steel ensure correct selection and installation. stamping. Table 1 offers a basic compliance comparison of the two most common vacuum cup materials: NBR and silicone.

Certain materials should never be used on certain applications. Silicone compounds table 1 should never be used to handle products Table 1 that are to be painted, such as automotive Oil Weather Gasoline Alcohol Oxidation Wear body panels, as it will leave a residue of the compound on the workpiece, and paint will Material resistance & Ozone not adhere to the metal surface correctly. In fact, in most stamping plants, silicone is pro      NBR hibited in case of cross contamination during maintenance procedures involving cup       Silicone replacement. This is the same for decorative stone handling such as granite or glass trans      Polyurethane fer, which will both be permanently marked by silicone.

www.ifps.org | www.fluidpowerjournal.com

november/december 2011

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web

www.ahx1.com

www.cyber-tech.net

Attica Hydraulic Exchange Corp.

Cyber-Tech, Inc.

marketplace

Attica’s capability to support the fluid power user base market is well known. “Under promise and over deliver” has always been Attica’s religion. Attica has the strong commitment to further support customer’s needs with even more vigor and quality products.

Look for Attica’s “Benchmark” new product line such as Vickers V10/V20 Pumps, MHT Motors, and Rexroth A10V Pumps, etc...

Special Advertising Section

Call 800-422-4279 or visit our web site for more details.

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www.HerculesUS.com

www.hiipumps.com

Hercules Sealing Products

Hydraulics International, Inc.

Cyber-Tech, Inc. designs and manufactures custom industrial grade control handles, control pendants, mechanical and proportional joysticks with a consistent reputation for being rugged and reliable, while delivering a level of customer service that is superior in the industry. Visit our website and give us a call so we can assist you in your control needs. www.cyber-tech.net 1.800.621.8754

NEW!

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Piranhaflex Plus 100R7 Hose Series PFP354 www.kuriyama.com ™

Kuriyama of America, Inc. Lift hydraulic lines The ideal hose for Fork • Features special low friction cover • Helps to eliminate routing problems • Extends service life

NEW! Piranhaflex™ Plus 100R7 Hydraulic Hose

ONLINE ORDERING NOW AVAILABLE Hercules Sealing Products provides parts for industries such as construction, mining, dump, refuse, material handling, industrial plant applications, agriculture and logging.

Products range from hydraulic and pneumatic seals, seal kits, cylinders, power units and cylinder component parts. Catalogs are published yearly and contain valuable technical information. For more information visit our website www.HerculesUS.com Phone: 866-625-0464 • Fax: 800-759-6391 E-mail: sales@HerculesUS.com Circle 298 36

november/december 2011

Hydraulics International, Inc. (HII Group), headquartered in Chatsworth, California, U.S.A. is a leading supplier of integrated products, services and support to military forces, aviation, commercial industries, Government agencies and prime contacts worldwide. Focused on defense and commercial technology, the Company develops, manufactures, and supports a broad range of systems for over one hundred industries as well as mission critical and military sustainment requirements worldwide.

Piranhaflex™ Plus 100R7 hydraulic hose is Kuriyama the ideal hose of for medium pressure America, Inc. hydraulic lines commonly used on Fork Series 360 E. State Parkway • Trucks.

Schaumburg, IL 60173 (847) 755-0360 • Fax: (847)and 885-0996 PFP354 has a seamless nylon inner tube braided• sales@kuriyama.c reinforcement with a black abrasion resistant / www.kuriyama.com special low friction polyurethane pin pricked cover.

The “Plus” refers to the special low friction cover which helps in eliminating sheave/pulley hose routing problems and extends hose service life.

360 E. State Parkway • Schaumburg, IL 60173 (847) 755-0360 • Fax: (847) 885-0996 www.kuriyama.com • sales@kuriyama.com

9201 Independence Ave. • Chatsworth, CA. 91311 Tel: (818) 998-1231 Circle 299

Circle 300 www.fluidpowerjournal.com | www.ifps.org

Special Advertising Section | Web Marketplace

www.laman.com

www.mainmfg.com

www.marzocchipumpsusa.com

La-Man Corporation

Main Manufacturing Products

Marzocchi Pumps

La-Man Corporation is a leading manufacturer of compressed air filtration products. With over 30 years of experience, we truly understand the importance of protecting valuable machinery, tools, and finished products from dirty, wet, contaminated air. La-Man’s line of products include the patented Extractor Dryer, .01 micron filter, as well as, LA-MAN-Air Breathing Systems™, SuperStar™ Membrane Dryers, and the Refrigerated Extractor/Dryer.

La-Man Corporation PO BOX 328 Mazeppa, MN 55956 800-348-2463

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MAIN’s website provides quick access to the most popular styles of HYDRAULIC FLANGES AND COMPONENTS. “About Us” gives background of this US manufacturer. “Create-A-Flange” offers more parts than the catalog — by picture. If it’s not here, or for questions, E-mails may be sent to get your answer quickly.

For over 50 years, Marzocchi Pumps has been a leader in hydraulic technologies, resulting from an unrelenting commitment to product development and quality. Today, the company is one of the largest gear pump and gear motor manufacturers worldwide. With over 2,000 pumps and motors to choose from, Marzocchi is sure to have the right fit for any hydraulic need.

Marzocchi Pumps USA 905 Albion • Schaumburg, IL 60193 Phone: 800.924.5404; 847.923.9910 Fax: 847.923.9937 pumps@marzocchipumpsusa.com

MAIN Mfg. Products, Inc. 1-800-521-7918 E-mail: info@mainmfg.com Circle 302

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ESA 2011 Fall Technical Conference November 6-8, 2011

Embassy Suites Pittsburgh International Airport Pittsburgh, Pennsylvania

www.2esa.org

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Web Marketplace | Special Advertising Section

www.maxmachinery.com

www.wfdyne.com

www.r-ddv.com

Max Machinery Inc.

Western FluiDyne

Woodward HRT

At Western FluiDyne our “People Make the Difference” is the driving force behind our fast growing business. Our wide line of remanufactured Vickers and Rexroth products allow our people to quote what you need at a price to save you money.

Our new WFD products include popular Vickers Vane, Veljan, Vickers Piston, Rexroth A10V, and Char-Lynn.

Call or email us and see what our people can do for you.

At Woodward HRT, we've earned an excellent reputation for our sophisticated motion control systems and components featuring compact designs, application flexibility, reliability and affordability. We offer fully-integrated systems including electronics and quality components.

Manufacturer of Precision Flow Meters and Portable Calibration Systems. For over 40 years Max has tackled the applications that the competition will not handle. Flow Meters with 0.2% of reading accuracy over wide flow ranges. High resolution outputs up to 1120 pulses per ml, for leak testing and low flow measurement.

Max Machinery, Inc. 33A Healdsburg Avenue Healdsburg, CA 95448 Phone: (707) 433-2662 Fax: (707) 433-1818

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Contact Us: 25200 West Rye Canyon Road Santa Clarita, CA 91355 Tel: (661) 294-6000

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www.yatesind.com

www.yptius.com

www.yuken-usa.com

Yates Industries

Young Powertech, Inc.

Yuken/ALA Industries

Young Powertech, Inc. is a manufacturer and distributor of hydraulic, mechanical, electrical and electronic components for mobile, marine, mining, and industrial applications. Young Powertech, Inc. was started by people with decades of experience in the field and are dedicated to bringing products and service to the customer at a higher level.

Developing Innovative Hydraulic Pumps and Valves. ALA Industries is the Yuken Master Distributor in North America Visit our website to find out about our products or to find a distributor close to you. We have distributors across North America. Our website offers product literature and information on Yuken’s certifications.

We feature a “Members” section for checking inventory, reviewing service manuals, as well as downloadable and interactive pricing. Call or email us. The staff at ALA Industries is always willing to serve you to meet your hydraulic needs.

Yates Cylinders Offer: • H6 Series - Heavy Duty Hydraulic (3000 PSI) • H4 Series - Medium Hydraulic (up to 1500 PSI) • A4 Series - Heavy Duty Steel Air (250 PSI) • A2 Series - Aluminum Air (250 PSI) • Air/Oil Intensifiers • All Stainless Steel Cylinders • Air/Hydraulic Welded & Mill Type Cylinders • Special Cylinders per Customer Supplied Prints and Specifications Yates Industries, Inc. Yates Industries South, LLC 23050 Industrial Dr. E. 3401-J Highway 20 St. Clair Shores, MI 48080 Decatur, AL 35601 586.778.7680 ph 256.351.8571 ph 586.778.6565 fax 256.351.8571 fax Circle 307 38

800-842-5377 phone | 888-842-5377 fax sales@westernfluidyne.com email www.westernfluidyne.com

november/december 2011

Young Powertech, Inc. 3060 Plaza Dr. #107 • Garnet Valley, PA 19601 Phone: 610-558-0760 • Fax: 610-558-0762 Email: info@yptius.com

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ALA Industries Limited 1150 Southpoint Drive, Suite D • Valparaiso, IN 46385 Phone (877) 419-8536 email: alaindustries@yuken-usa.com

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www.fluidpowerjournal.com | www.ifps.org

Special Advertising Section | Web Marketplace

International Fluid Power Society | IFPS

Associationnews

The 2012 Fluid Power Society Board of Directors Mr. Patrick J. Maluso, CFPAI, CFPS, CFPMHM - Western Hydrostatics, Inc, was elected as the 52nd president of the International Fluid Power Society during its recent annual meeting in Chicago, Ill. Mr. Maluso will take office in January 2012.

(Term expiring 2013) Mike Anderson, CFPS - Motion Industries Bill Jordan, CFPAI, CFPMHM - Altec Industries Rance Herren, CFPS, CFPECS - National Oilwell Varco Dan Helgerson, CFPAI, CFPS, CFPECS, CFPMT- Cascade Steel Rolling Mills, Inc.

The following Officers were also confirmed at the IFPS 2011 Annual Meeting: • First Vice President - Mark Perry, CFPHS - Fitzsimmons Hydraulics • Immediate Past President - Jon Jensen, CFPAI, CFPPS, CFPECS - SMC Corporation of America • Treasurer - Tom Blansett, CFPAI, CFPS, CFPIHT - Eaton Corporation • Vice President Certification - Wayne Farley, CFPAI, CFPMMH - Verizon • Vice President Marketing and Public Relations - Justin Sergeant, CFPS, CFPMHM – Hydraulic Repair and Design • Vice President Education - Jimmy Simpson, CFPAI, CFPS, CFPMM Nusim Associates Fluid Power Consultant • Vice President Membership - Richard Bullers, CFPPS, SMC Corporation of America • Vice President Educational Foundation - Liz Rehfus, CFPE, CFPS, Crafting Solutions, Inc. The following Directors-at-Large were also confirmed: (Term expiring 2012) Jean Knowles, CFPE, CFPS - Spencer Fluid Power, Inc. Marti Wendel, CFPE, CFPS - The Paquin Company, Inc. L. David Ruffus, CFPAI, CFPMHT, CFPMHM - Georgia Power Company Timothy White, CFPAI, CFPS, CFPECS, CFPMIH, CFPMMH, CFPMIP, CFPMT, CFPMM - The Boeing Company

(Term expiring 2014) Sam Skelton, CFPAI, CFPPS - SMC Corporation of America D. Dean Houdeshell, PE, CFPAI, CFPE, CFPS, CFPIHT, CFPMHT, CFPMHM - Sauer Danfoss Kenneth Dulinski, CFPAI, CFPECS, CFPHS, CFPMIH, CFPMMH - Eaton Corporation Honorary Directors-at-Large Robert Firth Raymond Hanley, CFPE/AI-Emeritus John Groot, CFPPS Robert Sheaf, CFPAI, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM The following have fulfilled their tenure on the IFPS Board: Bismarck (Bill) Castaneda, CFPHS - Automation Tech, Inc. Jeremiah Johnson, CFPHS Caterpillar, Inc. George Bufink, CFPAI, CFPMMH - American Electric Power (retired) Rickey Lew Rodeffer, CFPAI, CFPS, CFPMT, CFPMIH - The Boeing Company

CFPPS Certified Fluid Power Pneumatic Specialist

CFPMHT Certified Fluid Power Mobile Hydraulic Technician

CFPAJPP Certified Fluid Power Authorized Job Performance Proctor

CFPECS Electronic Controls Specialist

CFPPT Certified Fluid Power Pneumatic Technician

CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor CFPE Certified Fluid Power Engineer CFPS Certified Fluid Power Specialist (Must Obtain CFPHS, CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist

CFPMEC – in development Mobile Electronic Controls CFPIEC – in development Industrial Electronic Controls CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT) CFPIHT Certified Fluid Power Industrial Hydraulic Technician

www.ifps.org | www.fluidpowerjournal.com

CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM) CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic CFPPM Certified Fluid Power Pneumatic Mechanic

CFPMIH Certified Fluid Power Master of Industrial Hydraulics (Must Obtain CFPIHM, CFPIHT, & CFPCC) CFPMMH Certified Fluid Power Master of Mobile Hydraulics (Must Obtain CFPMHM, CFPMHT, & CFPCC) CFPMIP Certified Fluid Power Master of Industrial Pneumatics (Must Obtain CFPPM, CFPPT, & CFPCC) CFPCC Certified Fluid Power Connector & Conductor CFPSD Fluid Power System Designer

NEW!

Certification Levels Available

CFPAI Certified Fluid Power Accredited Instructor

november/december 2011

39

Associationnews

IFPS | International Fluid Power Society

Congratulations New IFPS Accredited Instructors IFPS supports career advancement through ongoing education and training. IFPS Accredited Instructors are certified professionals who train and prepare individuals for IFPS Certification Programs.

All IFPS Accredited Instructors have extensive backgrounds and instructional experience in the fluid power industry. In addition to their instructor accreditation, they are committed IFPS members and hold various levels of IFPS certifications.

Congratulations to the following new IFPS Accredited Instructors: Lawrence Gibbons, CFPHS, CFPAI, Nucor Steel Arkansas Michael Hanley, CFPHS, CFPIHM, CFPAI, Electro Hydraulic Machinery Co. Inc. Adam Krebs, CFPMHM, CFPAI, Dueco, Inc.

James Lane, CFPS, CFPAI, Motion Industries, Inc. Craig Peachey, CFPS CFPPT, CFPMT, CFPIHM, CFPPM, CFPMT, CFPAI, Alcoa Mill Products, Inc. Ricky Rock, CFPMHM, CFPAI, Altec Industries, Inc. Richard Smith, CFPS, CFPE, CFPAI, North American Hydraulics, Inc. Thomas Stringer, CFPS, CFPE, CFPECS, CFPAI, Motion Tec Anthony Stringer, CFPMHM, CFPAI, Altec Industries, Inc. Timothy White, CFPS, CFPECS, CFPMIH, CFPMMH, CFPMIP, CFPMT, CFPMM, CFPAI, The Boeing Company For information on becoming an IFPS Accredited Instructor, please visit www.ifps.org / Education & Training or call IFPS Headquarters at 800-308-6005.

2011 Annual Meeting Recap Special thanks to the 40 International Fluid Power Society (IFPS) professional members who recently met in Chicago, Ill. to conduct the IFPS 2011 Annual Meeting. These dedicated members steer the Board of Directors meeting, committee meetings, and strategic planning sessions and are instrumental in driving the IFPS forward in its mission.

Outcome of Committee and Board Meetings include • IFPS CFPE certification requirement changes effective January 1, 2012 • New IFPS certification level – Certified Fluid Power System Designer • Board approval for monetary donations to: * Minnesota Skills Competition

• •

• •

* NFPA Fluid Power challenge * Skills USA * FIRST Robotics Competition The development of a Fluid Power Boy Scout Merit Badge continues.

A new book titled Essential Practices Manual written by Raymond Hanley, CFPE/AI-Emeritus and a committee of subject matter experts, is scheduled to be released in 2012. Essential Practices Manual describes in-depth steps on how to build efficient fluid power solutions.

A subcommittee was formed to investigate a fluid power state licensing program Work continues on the development of the Mobile Electronic Controls, Industrial Electronic Controls, and Mechatronics certifications

Important Revisions for the IFPS Certified Fluid Power Engineer (CFPE) Designation: The IFPS Board of Directors recently made changes to the CFPE requirements. An individual who is seeking to become a CFPE will need to comply with the following additional requirements. These changes will take effect January 1, 2012.

• All CFPE applicants must now hold the IFPS Connector & Conductor certification.

• All applicants must hold two of the three specialist level certifications (Pneumatic Specialist, Hydraulic Specialist, and/or Electronic Controls Specialist).

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november/december 2011

IFPS EVENTS Visit www.ifps.org for registration information.

2011 IFPS Connector & Conductor (CC) Review w/ Job Performance Test 11/1-2, 2011 Eaton - USA – Maumee, OH IFPS Hydraulic Specialist (HS) Certification Review 12/12 -14, 2011- Eaton-USA – Maumee, OH Energy Efficient Hydraulics and Pneumatics Conference November 15-17, 2011 Sheraton Chicago O’Hare Airport Hotel, Rosemont, IL Visit

2012 IFPS 2012 Spring Meeting February 29–March 3, 2012 Embassy Suites USF Tampa, FL IFPS Hydraulic Specialist (HS) Certification Review Live Distance Learning March 12 - 28, 2012 evenings IFPS Pneumatic Specialist (PS) Certification Review Live Distance Learning March 13 - 29, 2011 evenings IFPS 2012 Annual Meeting September 26–29, 2012 Embassy Suites South Anaheim, CA

2013 IFPS 2013 Spring Meeting February 27 - March 2, 2013 Location TBD

IFPS 2013 Annual Meeting September 25 - 28, 2013 Location TBD

• A Bachelor of Science in Technology degree has been added to the education criteria requirements.

• It is no longer necessary for references, listed on the CFPE application, to hold the title of Professional Engineer (PE).

An individual who currently holds the IFPS CFPE certification will maintain their current CFPE designation. No action is required. These changes are for applications received after January 1, 2012.

www.fluidpowerjournal.com | www.ifps.org

Associationnews

International Fluid Power Society | IFPS

New IFPS Certification – Certified Fluid Power System Designer

New

Certification!

The IFPS Board of Directors recently approved a new fluid power certification- Certified Fluid Power System Designer (CFPSD.) The CFPSD is an expanded credential focusing on advanced, system level hydraulic, pneumatic and electronic controls expertise along with verifiable industry experience and is open to all qualifying individuals.

Details on the new prestigious CFPSD will be available soon. For information on all IFPS Certifications visit www.ifps.org or call 800-308-6005.

IFPS Newly Certified professionals Syed Azhar Abbas, HS Marco Fluid Power Inc.

Miguel Estupinan, PS PHD, Inc.

Tod Gunder, PS PHD, Inc.

John Korzyp, S, PS Motion Industries, Inc.

Cary Boozer, PE, E Motion Industries, Inc.

John Franklin, HS Cross Company

Jesse Hartmann, CC Eaton Hydraulics

Kyle Coiner, HS Motion Industries, Inc.

Jeremy Gilbert, MHT TACOM

Malachi Huber, PS PHD, Inc.

Ian McDonald, IHT, IHM Challenger Institute of Technology

Jonathan Dent, PS PHD, Inc.

Douglas Grogg, HS Scott Industrial Systems

Brett Hudspeth, MHT TACOM

Rob Doctor, PS PHD, Inc.

Michael Guilliams, MHT TACOM

Gerard Jean, MHT TACOM

Phillip Scrimpshire, HS Flow Dynamics & Automation, Inc. Scott Shepherd, PS PHD, Inc.

George Sackal, II, HS Hydro Air, LLC

Greg Steele, MHT TACOM

Juan Sanchez, CC Lawson Products, Inc.

Paul Tasker, MHT TACOM

Ka’ren Sarkissian, HS Airline Hydraulics Corp.

Kerry Treinen, S, PS Oshkosh Corporation

ISO 9001:2000 Certified Same Day Shipping 1 Year Warranty M2 Cartridge Motor

Compact Hydraulic Motors

Variable Pumps Fixed Flow Pumps

Taking M2Now Cartridge orders for New Motors 2 Bolt Flange in Motors Stock!

Circle 290 www.ifps.org | www.fluidpowerjournal.com

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Associationnews

IFPS | International Fluid Power Society

IFPS Certification Testing Locations Individuals wishing to take any IFPS written certification tests are able to select from approximately 325 convenient locations across the United States and Canada. The IFPS is able to offer these locations through its affiliation with The Consortium of College Testing Centers (CCTC) provided by National College Testing Association (NCTA).

To register for an IFPS written certification test: 1. Fill out an IFPS Certification Test Application including your desired location by visiting www.ifps.org.

2. Submit your application with payment to IFPS Headquarters.

3. Upon receipt of your application, you will be e-mailed instructions. Testing dates for any locations listed below are as follows:  November 2011 Tuesday, 11/1 Thursday, 11/17

 December 2011 Tuesday, 12/6 Thursday, 12/15

 January 2012 Tuesday, 1/3 Thursday, 1/19

 February 2012 Tuesday, 2/7 Thursday, 2/16

 March 2012 Tuesday, 3/6 Thursday, 3/15

 April 2012 Tuesday, 4/3 Thursday, 4/19

 May 2012 Tuesday, 5/1 Thursday, 5/17

 June 2012 Tuesday, 6/5 Thursday, 6/21

If you have any questions, please call IFPS Headquarters at 800-308-6005 or e-mail Connie Graham at cgraham@ifps.org.

ALASKA

University of Alaska Anchorage Anchorage, AK

ALABAMA

Alabama A&M University Normal, AL

Irvine Valley College Irvine, CA

University of AL in Huntsville Huntsville, AL University of Alabama at Birmingham Birmingham, AL

Florida Atlantic University Boca Raton, FL

National Test Center San Diego, CA

Florida Gulf Coast University Ft. Myers, FL

National University San Diego, CA Santa Rosa Junior College Santa Rosa, CA

ARKANSAS

Northwest Arkansas Community College | Bentonville, AR

ARIZONA

Arizona Western College Yuma, AZ Coconino Community College Flagstaff, AZ Eastern Arizona College Thatcher, AZ Glendale Community College Glendale, AZ Mesa Community College Mesa, AZ Northern Arizona University Flagstaff, AZ Paradise Valley Community College Phoenix, AZ Pima Community College Tucson, AZ Rio Salado College Tempe, AZ

Skyline College San Bruno, CA The Taft University System Santa Ana, CA UC San Diego Extension San Diego, CA University of California Irvine, CA Yuba Community College Marysville, CA

COLORADO

Community College of Aurora Aurora, CO

Community College of Denver Denver, CO Fort Lewis College Durango, CO Front Range Community College Larimer Campus | Ft. Collins, CO Pikes Peak Community College Colorado Springs, CO Pueblo Community College Pueblo, CO University of Colorado at Boulder Boulder, CO

CALIFORNIA

Allan Hancock College Santa Maria, CA

University of Northern Colorado Greeley, CO

CONNECTICUT

California Polytechnic State University San Luis Obispo, CA

Yale University | New Haven, CT

California State University, Fresno Fresno, CA

Delaware State University Dover, DE

Chapman University Orange, CA

Delaware Technical and Community College | Georgetown, DE

Foothill College Los Altos Hills, CA

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november/december 2011

FLORIDA

Brevard Community College Cocoa, FL Daytona State College Daytona Beach, FL

La Sierra University Riverside, CA

Jacksonville State University Jacksonville, AL

Arizona State University Tempe, AZ

Fullerton Community College Fullerton, CA

DELAWARE

University of Delaware Newark, DE

Florida Memorial University Miami Gardens, FL Florida Southern College Lakeland, FL

University of Illinois at Urbana Champaign, IL

University of West Georgia Carrollton, GA

Waubonsee Community College Grove, IL

Valdosta State University Valdosta, GA

HAWAII

BYU-Hawaii Laie, HI

IOWA

Hawkeye Community College Waterloo, IA

Indian River State College Fort Pierce, FL Miami Dade College Miami, FL

Western Iowa Community College Sioux City, IA

IDAHO

Brigham Young University Rexburg, ID

Polk State College Winter Haven, FL

College of Southern Idaho Twin Falls, ID

Santa Fe Community College Gainesville, FL University of Florida Gainesville, FL

Eastern Idaho Technical College Idaho Falls, ID Lewis-Clark State College Lewiston, ID

University of South Florida Tampa, FL Valencia Community College Orlando, FL

GEORGIA

Clayton State University Morrow, GA Columbus State University Columbus, GA Columbus Technical College Columbus, GA Darton College Albany, GA Georgia Gwinnett College Lawrenceville, GA

Ivy Tech Community College/ Bloomington | Bloomington, IN Ivy Tech Community College/ Columbus | Columbus, IN

Ivy Tech Community College/ Indianapolis | Indianapolis, IN Ivy Tech Community College/ Kokomo Kokomo, IN Ivy Tech Community College/ Lafayette | Lafayette, IN Ivy Tech Community College/ Lawrenceburg | Lawrenceburg, IN Ivy Tech Community College/ Madison Madison, IN Ivy Tech Community College/ Muncie Muncie, IN

University of Idaho Moscow, ID College of DuPage Glen Ellyn, IL

INDIANA

Ivy Tech Community College/Gary Gary, IN

Wartburg College Waverly, IA

Boise State University Boise, ID

Open Campus Florida Community College at Jacksonville, FL

Indiana University Indianapolis, IN

Ivy Tech Community College/ Evansville | Evansville, IN

University of Iowa Iowa City, IA

Hillsborough Community College Plant City, FL

Albany State University Albany, GA

University of Georgia Athens, GA

ILLINOIS

Ivy Tech Community College/ Richmond | Richmond, IN Ivy Tech Community College/ Sellersburg | Sellersburg, IN

College of Lake County Grayslake, IL

Ivy Tech Community College/ South Bend | South Bend, IN

Illinois State University Normal, IL

Ivy Tech Community College Terre Haute, IN

John A. Logan Community College Carterville, IL

Purdue University West Lafayette, IN

Lincoln Land Community College Springfield, IL Northern Illinois University De Kalb, IL

KANSAS

Johnson County Community College Overland Park, KS Kansas State University Manhattan, KS

Parkland College Champaign, IL

Georgia Southern University Statesboro, GA

Richland Community College Decatur, IL

Georgia State University Atlanta, GA

Rock Valley College Rockford, IL

University of Kansas Lawrence, KS Wichita State University Wichita, KS

www.fluidpowerjournal.com | www.ifps.org

Associationnews

International Fluid Power Society | IFPS

University of Louisville Louisville, KY

KENTUCKY

Western Kentucky University Bowling Green, KY

LOUISIANA

Bossier Parish Community College Bossier City, LA

University of Minnesota - Twin Cities Minneapolis, MN University of Minnesota Morris, MN

MISSOURI

Avila University Kansas City, MO

University of Louisiana at Monroe Monroe, LA

Metropolitan Community College-Penn Valley Kansas City, MO

Nicholls State University, Thibodaux, LA

Missouri Western State University St.Joseph, MO

University of New Orleans New Orleans, LA

Southeast Missouri State University Cape Girardeau, MO

MARYLAND

Anne Arundel Community College Arnold, MD

St. Charles Community College Cottleville, MO

Carroll Community College Westminster, MD

State Fair Community College Sedalia, MO Three Rivers Community College Poplar Bluff, MO

Chesapeake College Wye Mills, MD College of Southern Maryland La Plata, MD

University of Central Missouri Warrensburg, MO

Frederick Community College Frederick, MD

Webster University St. Louis, MO

Harford Community College Bel Air, MD Hagerstown Community College Hagerstown, MD Howard Community College Columbia, MD University of Maryland College Park, MD

MASSACHUSETTS

North Shore Community College Danvers, MA University of Massachusetts Boston, MA

MICHIGAN

Baker College Online Flint, MI

MISSISSIPPI

University of Mississippi University, MS

MONTANA

Montana State University Bozeman, MT

The University of Montana Missoula, MT

NORTH CAROLINA

Kalamazoo Valley Community College Kalamazoo, MI

North Carolina Central University Durham, NC

Schoolcraft College Livonia, MI

Washtenaw Community College Ann Arbor, MI

MINNESOTA

Minnesota State University, Mankato Mankato, MN

College of Southern Nevada Charleston Campus Las Vegas, NV

The University of North Carolina Wilmington, NC

NORTH DAKOTA

Bismarck State College Bismarck, ND

NEBRASKA

NEW JERSEY

Brookdale Community College Lincroft, NJ Gloucester County College Sewell, NJ Mercer County Community College West Windsor, NJ

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Harrisburg Area Community College-Lancaster Campus Lancaster, PA

College of Southern Nevada Cheyenne Campus North Las Vegas, NV

SOUTH CAROLINA

College of Southern Nevada Green Valley Campus Henderson, NV

Coastal Carolina University Conway, SC

College of Southern Nevada Henderson Campus, NV

Horry-Georgetown Technical College Conway, SC

NEW YORK

Brooklyn College - CUNY Brooklyn, NY

Rochester Institute of Technology Rochester, NY Central Ohio Tech College OSU-Newark | Newark, OH

OHIO

Midlands Technical College Columbia, SC Orangeburg Calhoun Technical College Orangeburg, SC Piedmont Technical College Greenwood, SC Spartanburg Community College Spartanburg, SC Technical College of the Lowcountry Beaufort, SC

Rhodes State College Lima, OH

Texas A&M University College Station, TX Texas A&M University-Commerce Commerce, TX Texas Tech University Lubbock, TX Tyler Jr. College Tyler, TX University of Houston Houston, TX University of Texas Brownsville Brownsville, TX University of Texas at Arlington Arlington, TX University of Texas El Paso El Paso, TX Victoria College Victoria, TX Weatherford College Weatherford, TX Brigham Young University Provo, UT

Davis Applied Technology College Kaysville, UT

Weber State University Ogden, UT

TENNESSEE

The University of Toledo Toledo, OH

East Tennessee State University Johnson City, TN

University of Akron Akron, OH

Middle Tennessee State University Murfreesboro, TN

OKLAHOMA

Northern Oklahoma College Tonkawa, OK Oklahoma State University Stillwater, OK

Oklahoma State University-Tulsa Tulsa, OK

University of Oklahoma Norman, OK

Southern Adventist University Collegedale, TN Tennessee State University Nashville, TN

OREGON

Central Oregon Community College Bend, OR

Clackamas Community College Oregon City, OR Mt. Hood Community College Gresham, OR Portland Community College Rock Creek Portland, OR

Old Dominion University Norfolk, VA

VIRGINIA

WASHINGTON

Central Washington University Ellensburg, WA Olympic College Bremerton, WA

Western Washington University Bellingham, WA

The University of Memphis Memphis, TN

WISCONSIN

Walters State Community College Morristown, TN Abilene Christian University Abilene, TX

UTAH

Utah Valley State College Orem, UT

York Technical College Rock Hill, SC

The Ohio State University Columbus, OH

Texas A&M International University Laredo, TX

Salt Lake Community College Salt Lake City, UT

Trident Technical College Charleston, SC

North Dakota State University Fargo, NC

Bellevue University Bellevue, NE

Harrisburg Area Community College York Campus | York, PA

University of Central Oklahoma Edmond, OK

Southeast Community College Lincoln, NE

Southwestern Michigan College Dowagiac, MI

NEVADA

East Carolina University Greenville, NC

Mount Olive College Mount Olive, NC

Michigan State University East Lansing, MI

Harrisburg Area Community College Harrisburg, PA

Franklin University Columbus, OH

Henry Ford Community College Dearborn, MI

Macomb Community College Warren, MI

San Juan College Farmington, NM

Mississippi State University Mississippi State, MS

Guilford Technical Community College Jamestown, NC

Lansing Community College Lansing, MI

HACC Gettysburg Campus Gettysburg, PA

Columbus State Community College Columbus, OH

Ferris State University Big Rapids, MI

Lake Superior State University Sault Ste. Marie, MI

NEW MEXICO

PENNSYLVANIA

Bucks County Community College Newtown, PA

Eastern New Mexico University Portales, NM

Holmes Community College Goodman Campus Goodman, MS

Fayetteville State University Fayetteville, NC

Delta College University Center, MI

Raritan Valley Community College Somerville, NJ

TEXAS

Austin Community College Austin, TX

Lakeshore Technical College Cleveland, WI

Marian University of Fond du Lac Fond du Lac, WI University of Wisconsin Oshkosh Oshkosh, WI

Eastfield College Mesquite, TX

University of Wisconsin-Milwaukee Milwaukee, WI

El Paso Community College El Paso, TX

UW-Green Bay Green Bay, WI

Grayson County College Denison, TX Lamar Institute of Technology Beaumont, TX

University of Wyoming Laramie, WY Lethbridge College Lethbridge, AB Canada

WYOMING

CANADA

Portland State University Portland, OR

Lamar University Beaumont, TX

RCC-SOU Higher Education Center Medford, OR

Midwestern State University Wichita Falls, TX

Saskatchewan Institute of Applied Science and Technology Saskatchewan, Canada

Sam Houston State University Huntsville, TX

Thompson Rivers University Kamloops, BC Canada

Southwestern Oregon Community College | Coos Bay, OR University of Oregon Eugene, OR

Southern Methodist University Dallas, TX

november/december 2011

43

Associationnews

NFPA | National Fluid Power Association

NFPA Education and Technology Foundation Awards Major Research Grant The NFPA Education and Technology Foundation, in keeping with its vision to pursue research that has the potential to transform the fluid power industry, has awarded a major research grant to Dr. Brian Steward and the Agricultural and Biosystems Engineering Department at Iowa State University. The project, Dielectric Spectroscope Sensor Development for Hydraulic Fluid Contaminant Detection, will focus on developing new technology for lowcost, on-board, real-time fluid power sensors.

Industry partners with an interest in this area of research are welcome to join the advisory board that will provide oversight, recommendations, and guidance to the Iowa State University researchers. Participating companies will help ensure the project serves the needs of industry and will receive opportunities to commercialize the results of the research discovery. To learn more, contact Sue Chase at 414-778-3376 or schase@nfpa.com.

The NFPA Education and Technology Foundation is a 501(c) (3) tax-exempt, charitable organization that supports educational programs and research in fluid power.

Upcoming Events 2012 NFPA Annual Conference

March 6 - 10, 2012 The Mauna Lani Bay, Kohala Coast, Hawaii

IFPEX 2012

April 17-19, 2012 NEC Birmingham 10% NFPA Member Discount Available to Exhibitors

Industrial Automation North America (IANA)

September 10-15, 2012 McCormick Place, Chicago, IL Be part of the â&#x20AC;&#x153;IFPE Fluid Power Zone,â&#x20AC;? a NEW and unique tradeshow designed to assist you in reaching your industrial automation customer market. Special NFPA member only discounts are available.

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november/december 2011

Circle 292

www.fluidpowerjournal.com | www.ifps.org

The Center For Compact And Efficient Fluid Power | CCEFP

CCEFP Research Develops New Approaches to Noise Control for Fluid Power Systems

N

oise—It’s an all too familiar problem to the fluid power industry. Besides negatively affecting hearing and impairing effective communication, excessive noise can increase mechanical fatigue and reduce component life. In short, excessive noise detracts from the attractiveness of existing fluid power products and can be an entry barrier for this technology into new markets and applications.

Solutions are on the horizon, however, based on research aimed at improving noise control in fluid power systems by passive means. A research team led by Georgia Tech Professor Ken Cunefare, with funding provided through the Engineering Research Center for Compact and Efficient Fluid Power (CCEFP), is seeking solutions to the reduction of noise and vibration by integrating engineered compliant materials into existing components and technologies. The use of these materials is also expected to help reduce the size of noise control devices for fluid power. Their work has significant impact for the fluid power industry as it strives to comply with regulatory requirements, answer to designers’ priorities for noise and size reduction, and meet customer expectations.

Fluid-borne noise is generated by numerous components within hydraulic systems, most significantly by pumps, and can couple to structures, causing vibration and air-borne noise. The high speed of sound in hydraulic fluid, along with the low fundamental frequencies of pumps, results in wavelengths of fluid-borne noise that are much longer than the practical size of common noise control components.

The current technology for reducing fluid-borne

noise involves both the use of pressurized, gas-filled bladders for adding compliance to fluid power systems, and integrated design features that address such noise sources as cavitation and structural vibration. Pressurized bladders are used in commercially available in-line silencers (one such silencer is used as a benchmark in this research) and in accumulators that act as low-pass filters. In contrast, the research approach in this project is unique in its application of a voided, engineered, compliant lining to noise control devices for fluid power systems.

Such a lining has already been put to the test. The research team has constructed a prototype silencer that incorporates a voided polymer lining, which has the same basic effect as a pressurized liner. In experimental tests, the prototype silencer exhibits 25 dB of transmission loss from 200-3000 Hz, and performs comparably to a similarly sized commercial bladder-style silencer. The team has also constructed other noise control devices that incorporate this lining: a Helmholtz resonator, a tuning coil, and a Quincke tube. The prototype Helmholtz resonator with the voided lining is two orders of magnitude smaller than an unlined resonator of the same resonance frequency. To facilitate their work, the team has constructed a test rig for measuring the acoustic performance of hydraulic two-port devices. The test rig has the capability of measuring the transmission loss of two-port hydraulic components including, but not limited to, silencers, accumulators, hoses, branch resonators, and valves.

Professor Cunefare and his team are interested in working with companies who may have applications in mind for their research findings. For further information, visit www.ccefp.org (Project 3B.1).

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Classifieds Advertiser Index

Company Page Circle Adaconn...........................................................................................26................. 313 Alfa-Laval.........................................................................................29................. 324 Ametek Automation and Process Technologies............................22................. 280 Association Management Company..............................................37................. 289 Attica Hydraulic Exchange Corp.PPL............................................ CIII................. 295 Attica Hydraulic Exchange Corp.PPL..............................................36................. 296 Clippard Instrument Lab Inc.......................................................... CIV................. 293 Cyber-Tech Inc...................................................................................7................. 269 Cyber-Tech Inc.................................................................................30................. 328 Cyber-Tech Inc.................................................................................36................. 297 DELTA Computer Systems Inc........................................................19................. 278 DELTA Computer Systems Inc........................................................27................. 318 Differential Pressure Plus Inc..........................................................31................. 284 Differential Pressure Plus Inc..........................................................28................. 319 Dynamic Fluid Components...........................................................41................. 291 Dynamic Fluid Components...........................................................27................. 314 Feroy Company Inc.........................................................................17................. 276 Feroy Company Inc.........................................................................29................. 325 Flange Lock......................................................................................19................. 279 Flange Lock......................................................................................26................. 310 Flaretite Inc......................................................................................14................. 273 Flaretite Inc......................................................................................29................. 326 Fluid Power Training Institute.........................................................25................. 285 Global Servo Hydraulics.................................................................25................. 287 Global Servo Hydraulics.................................................................28................. 320 Hercules Sealing Products..............................................................36................. 298 Honor Pumps U.S.A........................................................................31................. 288 Honor Pumps U.S.A........................................................................30................. 329 Hydraulics International Inc............................................................11................. 272 Hydraulics International Inc............................................................36................. 299 Inserta..............................................................................................23................. 281 Inserta..............................................................................................26................. 312 Kuriyama of America.......................................................................13................. 274 Kuriyama of America.......................................................................36................. 300 La-Man Corp....................................................................................37................. 301 Main Manufacturing Products........................................................28................. 322 Main Manufacturing Products........................................................37................. 302 Marzocchi Pumps............................................................................37................. 303 Max Machinery Inc..........................................................................11................. 271 Max Machinery Inc..........................................................................38................. 304 Peninsular Cylinder Co. Inc.............................................................18................. 277 Peninsular Cylinder Co. Inc.............................................................29................. 327 Power Valve.....................................................................................44................. 292 Power Valve.....................................................................................31................. 331 Rosedale Products Inc.....................................................................27................. 317 Spectronics Corp.............................................................................23................. 282 Sunfab North America....................................................................41................. 290 TR Engineering Inc........................................................................ CII................. 294 Ultra Clean.......................................................................................27................. 315 Webster Instruments.......................................................................27................. 316 Webster Instruments.......................................................................17................. 275 Western Fluidyne........................................................................... 8-9................. 270 Western Fluidyne.............................................................................28................. 321 Western Fluidyne.............................................................................38................. 305 Woodward HRT...............................................................................24................. 283 Woodward HRT...............................................................................38................. 306 World Wide Electric Corp................................................................30................. 286 Yates Industries Inc............................................................................1................. 265 Yates Industries Inc..........................................................................28................. 323 Yates Industries Inc..........................................................................38................. 307 Youli...................................................................................................5................. 267 Youli.................................................................................................31................. 330 Young Powertech Inc.........................................................................6................. 268 Young Powertech Inc.......................................................................38................. 308 Yuken/ALA Industries Ltd..................................................................3................. 266 Yuken/ALA Industries Ltd................................................................26................. 311 Yuken/ALA Industries Ltd................................................................38................. 309 Ad • Product Spotlight • Web Marketplace

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158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186

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448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476

477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505

1. Do you specify, select, or influence the purchase of components & systems on new or existing machinery?

03  Yes 04  No If yes, in which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 07  Vacuum 08  Electronic Controls 09  None of these 10  Administration 11  Plant Operations 12  Engineering 13  Technical 14  Mechanical 15  Purchasing 16  Other

4. Number of employees at this location?

A  1-19

B  20-49

B  Material Handling Equipment C  Mining Machinery D  Packaging Machinery E  Plastic Machinery F  Presses & Foundry G  Railroad Machinery H  Road Construction/Maintenance Equipment I  Simulators & Test Equipment

C  50-99

D  100-249

J  Snow Vehicles, Ski Lifts K  Steel Plants & Rolling Mills L  Truck & Bus Industry M  Textile Machinery N  Woodworking Machines O  Other (specify) P  Fluid Power Industry

E  250-499

F  500-999

5. What is the primary business activity at this location?

In the Fluid Power Industry: 56  Manufacturer 57  Distributor 58  Education Outside the Fluid Power Industry: 59  Original Equipment Manufacturer (OEM) 60  End User of Fluid Power Products 6. In which region does your company do business? (check all that apply) 61  East 62  Midwest 63  Southeast 64  Southwest

65  West

66  National

67  International

7. My Company should be advertising in or submit an article to the Fluid Power Journal. Please contact this person: Name: ___________________________________ Title: _________________________________ Phone: ______________________________ 8. I wish to receive a free subscription to Fluid Power Journal:

01  Yes

02  No

______________________________________________________________________________________________________________________ Signature Date 9. I would like more information on the following products: (Please check all that apply) 800  Accumulators 805  Filters 808  Hose & Tubing 801  Accessories 806  Gauges & Sensors 809  Hydraulic Fluids 802  Electronic Controls 807  Heat Exchangers, 810  Motors 803  Couplings & Fittings

Heaters, Aftercoolers, 811  Pumps 804  Cylinders Dryers 812  Seals & Packing 10. I plan on purchasing the above products in the next: 68  0-3 months 69  3-6 months 70  6-9 months

71  12+ months

Please send Fluid Power Society Information (please check all that apply) 897  Membership 898  Certification 899  Training/Education

813  Vacuum 814  Valves 815  Software

G  1000+

www.fluidpowerjournal.com

3. Which of the following best describes your market focus?

A  Aerospace I  Forestry B  Agricultural Machinery J  Furnaces C  Automotive K  Gas & Oilfield Machinery D  Civil Engineering L  Heavy Construction & Equipment E  Cranes M  Military Vehicles F  Drills & Drilling Equipment N  Construction & Utility Equipment G  Flame Cutting/Welding O  Machine Tools Equipment P  Government Related H  Food Machinery A  Marine & Offshore Equipment

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 Check here if you would like to keep your name, address, phone and fax numbers confidential, and not released to third parties The address above is my:  Home Address  Business Address

Which edition would you like to receive?  Print  Digital  Both 1. Do you specify, select or influence the purchase of components & systems, on new or existing machinery? 03  Yes 04  No. If yes, which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 09  None of These 07  Vacuum 08  Electronic Controls 2. What is your primary job title? (check only one) 10  Administration: Chairman, Pres., V.P., Sec., Tres., G.M., Owner, Bus. Mgr., Dir., etc.

11  Plant Operations: VP of Mfg/ Oper/ Prod., Plant Mgr./ Dir. Mgr., Supv./ Supt./ Foreman/ Safety Dir., etc.

12  Engineering: V.P. Eng., Eng., Des. Eng., Dir. of Eng., Staff Spec., Chief Eng., Senior Eng., Maint/Prod. Eng., etc.

13  Technical: Chief Tech., Fluid Power Tech., etc.

14  Mechanical: Chief Master Mech., Master Mech., Fluid Power Mech., etc.

15  Purchasing: VP/Dir. of Purch., Procurement Mgr., Buyer,

Purch., etc.

16  Other: (please specify)______________________________________ 3. Number of employees at this location?

A  1-19 B  20-49 C  50-99 D  100-249 E  250-499 F  500-999 G  1000+

(View a sample of our paperless digital edition at www.fluidpowerjournal.com) 4. What is the primary business activity at this location?

In the Fluid Power Industry Outside the Fluid Power Industry 56  Manufacturer 57  Distributor 58  Education 59  Original Equipment Manufacturer (OEM) 60  End User of Fluid Power Products 61  Other: (please specify)______________________________________ 5. Which of the following best describes your market focus?

A  Aerospace A  Marine & Offshore Equipment B  Agricultural Machinery B  Material Handling Equipment C  Automotive C  Mining Machinery D  Civil Engineering D  Packaging Machinery E  Cranes E  Plastic Machinery F  Drills & Drilling Equip.

F  Presses & Foundry G  Flame Cutting/Welding Equip. G  Railroad Machinery H  Food Machinery H  Road Construct/Maint. Equip.

I  Forestry I  Simulators & Test Equipment J  Furnaces J  Snow Vehicles, Ski Lifts K  Gas & Oilfield Machinery K  Steel Plants & Rolling Mills L  Heavy Construction & Equip. L  Truck & Bus Industry M  Military Vehicles M  Textile Machinery N  Construction & Utility Equip. N  Woodworking Machines O  Machine Tools O  Other (specify)_____________ P  Government Related P  Fluid Power Industry

My company should be advertising in or submit an article to the Fluid Power Journal. Please contact this person: Name:_ ________________________________________Title:___________________________________ Phone:_ _____________________________________________

circle 295

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