IN THIS ISSUE
March 2023
VOLUME 30 • ISSUE 3
Features
6 Back to the Future at IFPE: Are We There Yet?
Efficiency and what it means for fluid power system designers.
8 Gauge Ports Make Life Easier
MAIN Manufacturing makes flanges and participates in the SAE and ISO technical committees.
17 IFPE Show Supplement
Fluid Power Industry Bets on IFPE in Vegas
Amid economic uncertainty, the triennial confab carries on.
41 Test Your Skills
Why Accumulators Fail
42 Productivity in Crushing & Screening
What miners once did with manual labor they now do with automated mobile production lines.
46 Off-Highway Safety: Surround Sensing for Mobile Machines
The technology enhances collision avoidance and operator safety.
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.
Certification Benefits Professionals and Their Companies
By Thomas Blansett, CFPS, CFPAI, Technical Director, IFPS»MANY ARTICLES ABOUT certification focus on benefits to the individual, and I certainly don’t disagree with them. But I work for the International Fluid Power Society and look at it a little differently: What are certification’s benefits to an employer?
According to Phillip Barnhart’s 1997 Guide to National Professional Certification Programs, “Certifications are portable, since they do not depend on one company's definition of a certain job.” Certifications provide potential employers with “an impartial, third-party endorsement of an individual's professional knowledge and experience.”
For employers, certification is a screening tool that helps identify potential employees applying for jobs. Certification ensures that the candidate possesses at least base-level knowledge and skill.
that the company values their skills and knowledge. Another benefit to employers could be less turnover; satisfied employees usually don’t leave their employer. One concern expressed by some companies is a fear that if they train employees, those more highly valued professionals may leave to work somewhere else. There are many reasons to leave an employer, but I’ve never heard anyone say, “it was because they trained me too well.”
While trained individuals won’t necessarily increase production, they can help reduce downtime when faults in a system occur. Skilled professionals can quickly identify the fault’s cause and modify the system to ensure that it doesn’t reoccur.
Benefits to customers
Customers also benefit from well-trained and knowledgeable employees. They recognize that capable and credible professionals are serving them, and they see that a company holds its employees to the highest professional standards.
I obtained certification in 1990 because my boss at the Vickers Training Center decided that all instructors should be certified by IFPS, known at the time as the Fluid Power Society. My colleagues and I had been teaching for several years, but the explanation made sense: fluid power certification adds to our credibility, and it makes the training we offer relevant to the industry’s needs.
Prioritize certification
Some working professionals aren’t certified but possess the aptitude and attitude to obtain certification if they can get the right training. Employers should make certification a priority by providing the training employees require. Certification not only increases safety awareness, knowledge, and skills among employees, it yields benefits such as improved quality and increased productivity. Certification can result in less machine downtime.
Well-trained employees not only boost safety and productivity, they also improve engagement with the employer, as employees recognize
Companies benefit when they invest in their employees. When Vickers mandated that the sales force become certified, other manufacturers followed suit. Credentialing a sales rep as a Certified Fluid Power Specialist differentiates their company as better suited to design a hydraulic system. That doesn’t mean that noncertified professionals are not capable; many of them are. But certification assures customers that your company draws on an established foundational base of knowledge and skills.
As I reflect on my career in fluid power, I observe that my certification as a Certified Fluid Power Specialist opened many doors. It provided opportunities for professional growth that I would not have known otherwise. Over the years, I have known and worked with many of the industry’s great minds, and I am indebted to them for their mentorship and friendship.
Certification ensures that a job candidate possesses at least base-level knowledge and skill.
Employers should make certification a priority by providing the training employees require.
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: Art@FluidPowerJournal.com www.FluidPowerJournal.com
Founders: Paul and Lisa Prass
Associate Publisher: Bob McKinney
Editor: Michael Degan
Technical Editor: Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC
Marketing and
Social Media Consultant: Kristy O'Brien
Graphic Designer: Nicholas Reeder
Accounting: Donna Bachman, Sarah Varano
Circulation Manager: Andrea Karges
INTERNATIONAL FLUID POWER SOCIETY
1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-424-8998 • Fax: 856-424-9248
Email: AskUs@ifps.org • Web: www.ifps.org
2023 BOARD OF DIRECTORS
President: Scott Sardina, PE, CFPAI, CFPHSWaterclock Engineering
Immediate Past President: Denis Poirier Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCCDanfoss Power Solutions
First Vice President: Jeff Hodges, CFPAI/AJPP, CFPMHM- Altec Industries
Treasurer: Lisa DeBenedetto, CFPSGS Global Resources
Vice President Certification: James O’Halek, CFPAI/AJPP, CFPMIP, CMPMM - The Boeing Company
Vice President Marketing: Chauntelle Baughman, CFPHS - OneHydraulics
Vice President Education: Daniel Fernandes, CFPECS, CFPSSun Hydraulics
Vice President Membership: Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM - Open Loop Energy
DIRECTORS-AT-LARGE
Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHTAltec Industries
Cary Boozer, PE, CFPE - Motion Industries
Bruce Bowe, CFPAI/AJPP - Altec Industries
Bradlee Dittmer, CFPPS - Norgren/IMI Precision Engineering
Brian Kenoyer, CFPHS - Cemen Tech
Wade Lowe, CFPS - Hydraquip Distribution
Jon Rhodes, CFPAI, CFPS, CFPECS - CFC Industrial Training
Mohaned Shahin, CFPS - Parker Hannifin
Randy Smith, CFPHS - Northrop Grumman
Ethan Stuart, CFPS, CFPECS - Quadrogen
Bradley Wagner, CFPAI/AJPP - Manitowoc Crane Group
Brian Wheeler, CFPAI/AJPP, CFPMM, CFPMIPThe Boeing Company
CHIEF EXECUTIVE OFFICER (EX-OFFICIO)
Donna Pollander, ACA
HONORARY DIRECTOR (EX-OFFICIO)
Ernie Parker, CFPAI/AJPP - Hydra Tech
IFPS STAFF
Chief Executive Officer: Donna Pollander, ACA
Communications Coordinator: Victoria Piro
Technical Director: Thomas Blansett, CFPS, CFPAI
Assistant Director: Jenna Mort
Certification Logistics Manager: Kyle Pollander
Bookkeeper: Diane McMahon
Administrative Assistant: Beth Borodziuk
Instructional Designer and Layout: Chalie Clair
Fluid Power Journal (ISSN# 1073-7898) is the official publication of the International Fluid Power Society published 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 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.
New Problem Press Upgrade Didn’t Fix Overheating Problem
By Robert Sheaf, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM, CFC Industrial Training»THE ABOVE CIRCUIT drawing for a hydraulic press was upgraded after 10 years of continuous 24/7 operation. They replaced the main directional valve, added valve 3B unloading circuit, and installed a separate pilot pressure pump. This was all done to reduce the heat that was thought to be caused by the high flow through the directional valve when the cylinder retracted and omitted a 75 psi (0.5 MPa) back pressure check in the main pump line that supplied external pilot pressure to the valve.
The press was operational, but it still had the overheating problem that the upgrade was supposed to fix. They did find that the pilot line circuit was extremely hot going to the directional valve, and the line from check valve #2 to the tank was even hotter. The case drain line from the main pump to tank was warm like the original design.
What could be the problem?
See page 54 for the solution.
Robert Sheaf has more than 45 years troubleshooting, training, and consulting in the fluid power field. Email rjsheaf@cfc-solar.com or visit his website at www.cfcindustrialtraining.com. Visit fluidpowerjournal.com/figure-it-out to view previous problems.
BACK TO THEFUTURE FUTURE AT IFPE
ARE WE THERE YET?
By Rance Herren, Founder, Fluid Power SMEcharging electric vehicles. This is not an isolated incident domestically or globally, nor is it the only time extreme weather has affected EV drivers. It is well documented. Another concern is the availability of lithium, an essential element in rechargeable batteries.
The demand for lithium has increased at least 30 times between 2000 and 2015 and is expected to increase by another 1,000% by 2025 as compared to 2015. As of 2021, Australia accounts for 52% of global lithium production and was the number one lithium producing country in the world. Chile ranked second with its 24.5%, followed by China at 13.2%. Overall, Australia, Chile, and China have nearly 90% of lithium production in the world. The U.S. shares sixth spot with Portugal, having only 0.8% global share. The only existing lithium producer in the U.S. is in Nevada, and according to the U.S. Geological Survey, the country holds only an estimated 3.6% of global lithium reserves. China has the largest known lithium deposits in the world and will dominate the future lithium supply. Going forward, obtaining lithium may not be as easy given geopolitical concerns between China and the West. An inability to produce enough lithium would result in severe delays and disruptions to the roll out, implementation, and sustainability of electrification. Kind of rings of that whole dependence-on-foreign-oil-situation, doesn’t it? This is not to mention the environmental impact of lithium mining for batteries, the oppressively high cost to replace a battery, or the enormous cost and environmental impact of disposal. There are plenty of articles available to satisfy that curiosity should one care to know more.
So what does that have to do with fluid power systems used on industrial machinery and mobile equipment? More than one might think. From an electric grid perspective, battery-powered heavy construction, mining, and even agricultural equipment will be sharing and working in the same space as electric vehicles. That is unless diesel power generators are at hand. Yes, Rome was not built in a day, but many entities are moving full-speed ahead with their agendas, but with seemingly little attention being paid to the immediate and long-term impacts.
Among the many lessons from the COVID-19 pandemic we should have learned is how vulnerable our manufacturing base is to disruption. Another lesson is that supply chain is more than just manufactured products; it is about workers. Skilled workers. The fact is we are in a crisis. Let me say that again. We are in a crisis! Much like the hard sciences, the skilled trades are suffering an alarming drain on the talent pool. The number of individuals coming into and staying in the trades compared with those leaving or retiring is strikingly disproportionate. It has even become a matter of national security. In a September 2022 article in Foreign Affairs magazine, the authors argued, “Washington must acknowledge that education is no longer just a domestic policy issue but a national security issue on which the very future of the United States depends.” What this means is that as a country and a society, we need to put as much passion into educating those who will manufacture and maintain the equipment of the future as we do in developing and deploying the technology itself.
What now?
For the past several years, we’ve seen a regimented march to a steady drumbeat to abandon fluid power as a primary source of power transmission in many applications, and many are happy to see it relegated to a place where no other technology will suffice, regardless of efficiency, ease of application, and flexibility of installation. Many in our own industry are willing to cede the fight if they can cling to the power density argument. Unless the plan is to negotiate a peaceful surrender, it is time to ask ourselves some serious questions.
How well have we used the technologies and tools that we have available to us in the here and now? How many responsible for evaluating the various available technologies or designing fluid power systems are even aware of ISO/TR 22164, Application Notes for the Optimization of Energy Efficiency in Hydraulic Systems, or, for the pneumatically minded, ISO/TR 22165, Application Notes for the Improvement of the Energy Efficiency of Pneumatic Systems? These documents provide advice on how to design hydraulic and pneumatic systems with increased energy efficiency while maintaining the intended functionality of the machine. They are checklists of sorts to prompt the user of the many considerations for defining machine architecture, functionality, and duty cycle as well as component specification and selection, the use of software for system validation and optimization. This document does not tell one how to design a hydraulic or pneumatic system; rather it provides broad reminders of the technologies, tools, and best practices that are available to us right now.
Are we clinging to outdated technologies and rules of thumb from the past? Fluid power manufacturers are developing more energy efficient pumps, motor controls, and accessories. From energy efficient hydraulic fluids to variable frequency pump drives and electronics to manage power demands. How well are we embracing and adopting these technologies? Are reservoirs being grossly oversized based on antiquated rules of thumb or components being incorrect specified based on nominal flow rates? Are we really serious about STEM and skilled trades education for all trades, or just those that fit in the environmental box? Is skill-specific training and certification something worth investing in, or just another nuisance expense?
I will admit, I am not as hip and trendy as I would like to think I am. Somewhere I heard the phrase FOLO. Not knowing what it meant, I googled it. FOLO is an acronym for fear of losing out. It also turns out that FOLO has infested the business world too. Many leaders invest and prioritize their model based on hype, trends, and perceptions of what others are doing, rather than their own business strategy. They see a competitor going down a path, and they think they must do so too, often based on erroneous, incomplete, or biased data. They might not even fully understand or agree with what they are embarking on; nevertheless, they participate because everyone is doing it. There is also a lot of external pressure from nonfinancial factors, such as ESG – environmental, social, and governance – activism as part of their analysis and decision-making process. This is occurring posthaste, with equal intensity in consumer, commercial, and industrial markets.
None of this is to say that innovation, including electrification, is not important. But it would be ridiculous and disingenuous to claim we have made best use of all available fluid power technologies and best practices, and that, as a society, we have sufficiently invested in the infrastructure to support it. Please do not get me wrong: I do not hate electrification or any other form of alternative energy. It has many benefits that will ultimately outweigh the drawbacks, and fluid power must fight and earn the right to keep its place. But until we get where we want to go with electrification, maybe we pump the brakes a little, lest we go into an uncontrollable skid from which the industry may not recover.
We should all want to be good stewards of the planet we live on. But as noble as it may sound, at this juncture zero emissions means nothing more than transferring the source of pollution from one form of energy to another. And in many instances, we may be worse off than where we started.
Are we there yet? No. But we will be eventually. Maybe. •
GAUGE PORTS MAKE LIFE
By Robert Mackey, General Manager,Sometime ago, at CONEXPO-CON/AGG, it was possible to climb a stepladder, pass through a hatch, and sit next to the hydraulic brake motor of a large dump truck. However, just looking at the motor gives you less information about what is happening to the system than a diagnostic port.
In the last show, a vendor set up a stage with joysticks, gauges, and video screens for visitors to operate construction equipment several states away in real time. The conditions this equipment operates in could be the cold of the Arctic Circle to heat of the Sahara Desert. The equipment could be 5,000 feet under the ocean surface or in outer space. Note that the Colorado School of Mines now offers degrees in space resources (mining on asteroids). It is vital to know what is happening to the hydraulic components and fluids in this equipment. One way to do this is to extract a sample of the fluid or measure the fluid’s pressure and temperature. This article discusses the requirements of diagnostic gauge ports and explores available components to make life easier. MAIN Manufacturing Products has been putting gauge ports in flanges and making gauge port adapters for decades. MAIN has made flanges for over 65 years and participates in the SAE and ISO technical committees so we can speak of the market with confidence.
One of the first places to start is SAE J1298 Hydraulic System Diagnostic Port Sizes and Locations. This document was stabilized in 2016 by the SAE FCCTC subcommittee and is the consensus of fluid power manufacturers, OEM equipment manufacturers, and users. Stabilized means that the standard does not need regular review, as it is the best information currently available. It is not identical to ISO 8925 because SAE J1298 has additional metric and inch connections. SAE J1298 gives requirements for the manufacturers of self-propelled work machines and recommendations distilled from much discussion. Indoor equipment like presses and molding machines may not need the larger diameters of gauge ports specified, but the locational information in the standard still applies. It is a good idea to have a copy of the standard as it contains additional requirements. SAE J1298 covers only ports, not fittings, which have their own standards.
One of the first items to think about is what type of gauge port is needed. SAE J1298 requires M14 x 1.5 (ISO 6149), 3/8-18 (SAE J1926/ISO 11926 (SAE straight thread)), or SAE J518 flange ports for larger sizes. The “/” represents that SAE J1926 and ISO 11926 are generally technically identical. At MAIN, we see, in order of market preference:
MAIN manufactures flanges with gauge ports daily. The industry is trying to move to using elastomeric sealing specified in the SAE straight thread (SAE J1926) and ISO 6149. Metal-to-metal sealing, like the NPTF and some BSP threads, is discouraged because of its tendency to leak, although usage is very common.
Next is the size of the port. At MAIN, the 1/4 inch (#4) size is the most common, with 3/8 (#6) next. ISO 6149 ports are not common but MAIN does machine these in. The 9/16-18 thread corresponds to the #6 SAE straight thread size. SAE J1298 says for temperature, pressure, and sampling, the size should be the M14 X 1.5 ISO 6149 or the #6 SAE straight thread. It uses the larger size to improve fluid flow in colder situations. MAIN was involved with a distributor that was reconfiguring equipment that was transferred from oil fields in Alaska to oil fields in Saudi Arabia. When designing equipment, it is important to consider the life of the equipment and all possible environments in which the equipment could be used. Appropriately larger sized ports can also be used to measure flow. Ports should be located in places to get the most accurate readings. This is generally in the fluid stream. A requirement of SAE J1298 is to have at least one port at the main system relief valve. Other suggested places are the inlet and outlet ports of the following locations:
It is a good idea to consider the requirements of OSHA, or other nations’ equivalent organization, of assuring that the system is de-energized before working on it. Although gauges can malfunction or break, showing zero pressure on each side of a hydraulic component is a first step to assuring no hydraulic pressure in the component.
Finally, around the diagnostic port make sure that there is at least a 3 inches (75 mm) diameter and a 8 inches (200 mm) high area of no interference to allow for clearance for the connection to be made. This space allows the gauge or coupling to be installed. A type of fitting to consider is the push-to-connect under pressure fittings. These are hydraulic fittings designed to allow coupling and decoupling under pressure. With this fitting, gauge or sampling equipment does not have to be attached to the system at all times, or even most of the time. Many companies manufacture push-to-connect under pressure fittings, and they are available from many sources and can make the determination of location easier.
gauge port adapter plates discussed below, the reducing run tees are blocks with #12 or #16 SAE straight threads or other ports. They are regularly 2 inches or more thick. While the run of the tee can be made in any port style, most are straight threads, flanged (having a flange port), then NPTF.
Another convenient way to add a gauge port to hose or pipe with flange ports is with gauge port adapters. Gauge port adapters are plates between 1 and 1.5 inches
thick, ground on one side and O-ringed on the other. A gauge port is put in the side of the long way of the bolt pattern. Some manufacturers put an NPTF on one side and an SAE straight thread on the other side.
BOOTH #S84057
Gauge port adapters have the appropriate bolt pattern for the size of the flange. These parts get sandwiched in between the flange fitting and the component using longer screws. No machining is required and the port can be added very quickly in retrofit situations. The thickness of the plate is determined by the size of the gauge port. Many manufacturers offer these from stock in popular sizes and ports. MAIN has gauge port adapter plates stocked in all popular sizes, such as 1/4-inch and 3/8-inch NPTF, and #4 and #6 SAE straight thread. BSP (T or P) in 1/4 or 3/8 inch are manufactured regularly with very quick delivery times. The ISO 6149 ports are not as common in the U.S. MAIN has quick delivery times on them but many manufacturers and distributors do not stock them or have even offer the plates with ISO 6149 ports.
For system maintenance and troubleshooting, not all the systems have gauge ports where needed. The gauge port adapters lend themselves for use by maintenance workers and distributors trying to troubleshoot a system. They organize sets of adapters with longer screws and a gauge and putting this group into a pelican type case. When the troubleshooter arrives, they sandwich the gauge port adapters in-line with the gauge installed and get the information or sample they need to quickly and precisely analyze the system. •
IFPS Spring Meeting Open to All Members
The IFPS Spring Meeting will be held in person and virtually Feb. 27–March 2 in New Orleans.
Why attend? You’ll meet a dedicated (and fun) group of professionals who exchange ideas and technologies, on ways to improve and educate the fluid power workforce. Our board members have diverse backgrounds and work in many different segments of the industry. So the discussion is lively and informative. Imagine the things you’ll learn!
Each of our committees – Education, Certification, Membership, Marketing, and Finance – follow a mission statement, and each team works together on projects to meet those goals. Our members’ input is vitally important, so if you can’t participate virtually or attend in person, consider joining one of our committees. Contact vpiro@ifps.org.
In addition to committee meetings, tours, and networking, a technical workshop titled A Deep Dive into Cartridge/logic Valves and Pilot Operated Check Valves will be conducted by Ernie Parker, CFPAI, and will be held on Feb. 27, 8 a.m. to 2 p.m. [CST].
Parker will take a deep dive into some of the most popular components in a fluid power system. He will cover pilot-operated check valves outlining proper applications, sizing the correct ratio for different applications, designing circuits with pilot-operated check valves, and why orifices are often needed. In addition, he’ll cover counterbalance valves detailing proper applications, adjusting counterbalance valves as compared to other pressure control valves, sizing the correct ratios for different applications, determining when one should use internal pilot, external pilots, or both, designing various circuits where counterbalance valves are needed and using counterbalance valves versa a flow control to increase efficiency when variable speeds are needed and safety concerns of over pressurization. Also, designing efficient, cost-effective circuits using standard type components that will have a relativity short payback, covering: how to properly apply flow dividers, when to use a proportionator (rotary type) or a spool type flow control, examples of efficient circuits, designing a mobile system using dual reservoirs for contamination reasons and to reduce maintenance, applying a cylindrical reservoir with proper filtration and cooling and new best practice inlet plumbing, correcting mistakes that have been made for years. Register at www.ifps.org.
Hall of Fame Nominations Open
»NOMINATIONS FOR THE Fluid Power Hall of Fame are open until April 15.
The fluid power industry's success is through the efforts of dedicated individuals – innovators, researchers, application engineers, educators, and sales and service personnel. These people are the reasons our industry continues to thrive.
The Fluid Power Hall of Fame was established to acknowledge those individuals who have dedicated their careers and have made significant contributions to fluid power technology.
Any person can nominate an individual, living or deceased, who demonstrated excellence within their 25-plus year fluid power career –one nomination per category (living or deceased) per person.
A panel of judges will review applications and select inductees. The inductees will be announced on June 19, Fluid Power Professionals Day. Inductees will be honored during the IFPS awards dinner in New Orleans.
IFPS Releases Mechanic Training Modules
»THIS ONLINE AT-YOUR-OWN-PACE training module takes the IHM and MHM study manuals and brings them to life! The mechanic training modules heavily emphasize maintaining, repairing, and troubleshooting hydraulic systems. These modules also include the basic principles of fluid power and the operation and construction of the most common hydraulic components found in the system.
These modules are a great tool for someone preparing for an IHM or MHM certification tests, someone looking to boost their skills, and even makes an excellent onboarding tool for entry-level mechanics!
Our IHM and MHM certification study manuals were transformed from traditional black/white print into a full color, animated, interactive online learning platform!
• Schematics are color coded and animated
• Contains ISO 1219 symbology
• Full-color graphics
• Chapter review questions - interactive (you’ll know immediately if you’ve grasped the chapter information)
• Voice-over for text for auditory learners
• Three additional online pre-tests
• Safety and Energy Tips throughout
Cost is $349. Multiple-user pricing for five or more!
E-mail sales@ifps.org for details.
IFPS Releases Math Training Modules
»A RECENT STUDY found that more than 68% of participants cited a lack of confidence as the biggest stumbling block to a student’s ability to succeed in math. If math is a stumbling block for you, or if you are preparing to take a certification test, this online at-your-own-pace training module transforms the IFPS math book into an interactive learning tool!
Dan Helgerson, CFPAI, will teach fundamental fluid power math skills and build on that foundation to explain the calculation of more complicated formulas. Each section includes step-by-step video instructions on how to solve complex fluid power math problems.
1. Welcome to the Fluid Power Math Workshop
2. Understanding the Order of Operations –PEMDAS
3. Units used in IFPS Fluid Power Math Equations
4. Math Basics
5. Circles
6. Various Math Equations
7. Fluid Power Formulae
8. Calculating, Volumetric, Mechanical and Overall Efficiency
9. How to Size and Select a Fluid Power Cylinder
Outline
10. Calculating Fluid Velocity
11. Detailed Explanation and the Importance Triangles in Fluid Power
12. Understanding Reaction Forces
13. Jib Boom Calculations
14. Understanding Toggles
15. Misc. Reservoir Equations
16. Understanding Compressed Air
17. Coefficient of Velocity
18. Sizing Accumulators
19. Coefficient of Friction
20. Understanding Cartridge Elements
21. Electric Formulae - Ohm's
Cost is $199. Multiple-user pricing for five or more!
E-mail sales@ifps.org for details.
Mark Your Calendar
UPCOMING TRAINING
Primary and Secondary Air Preparation
When: Feb. 17, 12-1 p.m. [ET] Presented by Ed Rybarczyk, CFPAI
Fluid Power Basics
When: April 27, 12-1 p.m. [ET]
UPCOMING VIRTUAL LEARNING
Deep Dive into Cartridge, Logic, and Pilot
Operated Check Valves
When: Feb. 27, 8 a.m. to 2 p.m. [CST], virtual or in-person, Embassy Suites, New Orleans
Presented by Ernie Parker, CFPAI CFPE
Cost: $150
For more information and to register, visit www.ifps.org.
UPCOMING WORKSHOPS
Accredited Instructor and Authorized Job Performance Proctor Workshop
When: March 28-29, IFPS Headquarters, Cherry Hill, New Jersey
Accredited Instructor (AI) and Authorized Job Performance Proctor (AJPP) Workshops
The AI workshop is a one or two-day workshop to acquaint you with the IFPS certification program and to assess your instructional abilities. It is not a program to teach instructor skills, but rather, to measure your instructor skills. IFPS AIs 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. IFPS AJPPs are certified to proctor all mechanic and technician and Connector & Conductor job performance (hands-on section) tests. An individual must hold the certification they plan to proctor and must be an IFPS member. Registration deadline is March 1.
For more information or to register, call (856) 424-8998 or visit www.ifps.org/certified-accredited-instructor.
Newly Certified Professionals
December 2022
AUTHORIZED JOB PERFORMANCE PROCTOR
Seth Davis, Pueblo Community College
CONNECTOR & CONDUCTOR
AUTHORIZED JOB PERFORMANCE PROCTOR
Seth Davis, Pueblo Community College
ELECTRONIC CONTROLS SPECIALIST
David Vos, TriHQ
HYDRAULIC SPECIALIST
David Steere, Alfred State College
Adam Becker, Triad Technologies
Jake Bethel
Kevin Briggs
Christian O'Neal, Altec Industries
Gabriel Cooks, SUNY Alfred State College
Harkanwaljeet Singh
Jarred Mathers, Connector Specialists of Alabama
Jesse Holman, Triad Technologies
Mark Suber, Triad Technologies
Michael Osborn, Dana
Shaun Maconaghy, Blue Origin
Jonathan Stanbro
Weston Alberts, Akkerman
INDUSTRIAL HYDRAULIC TECHNICIAN
Karl Lueck
MOBILE HYDRAULIC MECHANIC
Michael Esposito, Comed
Chance Chromcak, Entergy
Chad Paustian, Comed
Dan Calderone, Atlantic City Electric
Darren Provost, Comed
Dylan Falcone, Altec Industries
Eric Snyder
Garrett James
Jacob Leuthold, Comed
James Jennings, Altec Industries
Keith Masse, Altec Industries
Keith Tindall, Atlantic City Electric
Kenneth Purcell, Comed
Kenneth Stephens, Georgia Power Company
Leo Kohs, Comed
Nicholas Hall, Mississippi Power
Oakley Blamey, Georgia Power
For more information, visit www.ifps.org.
Ryan Schulte, Liberty Utilities
Scott Full, Comed
Scott Simonelli, Altec Industries
Stephen Streaker, Delmarva Power
Wesley Cooley, Mississippi Power
MASTER MECHANIC
Sean Wynne, The Boeing Company
William Cooper, The Boeing Company
PNEUMATIC MECHANIC
Guy Roberts, The Boeing Company
John Nason, The Boeing Company
Mark Mayberry, The Boeing Company
Sean Wynne, The Boeing Company
Tyler Crabb, The Boeing Company
William Cooper, The Boeing Company
PNEUMATIC SPECIALIST
Christopher Raschke
Jonathan Randich, IMI Precision Engineering
SPECIALIST
Christopher Raschke
Written Certification Test Locations
ALABAMA
Auburn, AL
Birmingham, AL
Individuals wishing to take any IFPS written certification tests can select from convenient locations across the United States and canada. IFPS is able to offer these locations through its affiliation with the consortium of college Testing centers provided by National college Testing association.
contact Kyle Pollander at Kpollander@ifps.org if you do not see a location near you. Every effort will be made to accommodate your needs.
Calera, AL
Decatur, AL
Huntsville, AL
Jacksonville, AL
Mobile, AL
Montgomery, AL
Normal, AL
Tuscaloosa, AL
ALASKA
Anchorage, AK
Fairbanks, AK
ARIZONA
Flagstaff, AZ
Glendale, AZ
Mesa, AZ
Phoenix, AZ
Prescott, AZ
Scottsdale, AZ
Sierra Vista, AZ
Tempe, AZ
Thatcher, AZ
Tucson, AZ
Yuma, AZ
ARKANSAS
Bentonville, AR
Hot Springs, AR
Little Rock, AR
CALIFORNIA
Aptos, CA
Arcata, CA
TENTATIVE TESTING DATES FOR ALL LOCATIONS:
April 2023
Tuesday 4/11 • Thursday 4/27
May 2023
Tuesday 5/9 • Thursday 5/25
June 2023
Tuesday 6/6 • Thursday 6/22
July 2023
Tuesday 7/11 • Thursday 7/27
JOB PERFORMANCE TEST LOCATIONS
Arizona
California
Colorado
Florida
Georgia
Maine
Michigan
Minnesota
Montana New Jersey
Nova Scotia Pennsylvania Texas Washington Wyoming Western Australia
Tallahassee, FL
Tampa, FL
West Palm Beach, FL
Wildwood, FL
Winter Haven, FL
GEORGIA
Albany, GA
Athens, GA
Atlanta, GA
Carrollton, GA
Columbus, GA
Dahlonega, GA
Dublin, GA
Dunwoody, GA
Forest Park, GA
Lawrenceville, GA
Morrow, GA
Oakwood, GA
Savannah, GA
Statesboro, GA
Tifton, GA
Valdosta, GA
HAWAII
Laie, HI
IDAHO
Boise, ID
Coeur d ‘Alene, ID
Idaho Falls, ID
Lewiston, ID
Moscow, ID
Nampa, ID
Rexburg, ID
Twin Falls, ID
ILLINOIS
Bakersfield, CA
Dixon, CA
Encinitas, CA
Fresno, CA
Irvine, CA
Marysville, CA
Riverside, CA
Salinas, CA
San Diego, CA
San Jose, CA
San Luis Obispo, CA
Santa Ana, CA
Santa Maria, CA
Santa Rosa, CA
Tustin, CA
Yucaipa, CA
COLORADO
Aurora, CO
Boulder, CO
Springs, CO
Denver, CO
Durango, CO
Ft. Collins, CO
Greeley, CO
Lakewood, CO
Littleton, CO
Pueblo, CO
DELAWARE
Dover, DE
Georgetown, DE
Newark, DE
FLORIDA
Avon Park, FL
Boca Raton, FL
Cocoa, FL
Davie, FL
Daytona Beach, FL
Fort Pierce, FL
Ft. Myers, FL
Gainesville, FL
Jacksonville, FL
Miami Gardens, FL
Milton, FL
New Port Richey, FL
Ocala, FL
Orlando, FL
Panama City, FL
Pembroke Pines, FL
Pensacola, FL
Plant City, FL
Riviera Beach, FL
Sanford, FL
LOUISIANA
Bossier City, LA
Lafayette, LA
Monroe, LA
Natchitoches, LA
New Orleans, LA
Shreveport, LA
Thibodaux, LA
MARYLAND
Arnold, MD
Bel Air, MD
College Park, MD
Frederick, MD
Hagerstown, MD
La Plata, MD
Westminster, MD
Woodlawn, MD
Wye Mills, MD
MASSACHUSETTS
Boston, MA
Bridgewater, MA
Danvers, MA
Haverhill, MA
Holyoke, MA
Shrewsbury, MA
MICHIGAN
Ann Arbor, MI
Big Rapids, MI
Chesterfield, MI
Dearborn, MI
Dowagiac, MI
East Lansing, MI
Flint, MI
Grand Rapids, MI
Kalamazoo, MI
NEW JERSEY
Branchburg, NJ
Cherry Hill, NJ
Lincroft, NJ
Sewell, NJ
Toms River, NJ
West Windsor, NJ
NEW MEXICO
Albuquerque, NM
Clovis, NM
Farmington, NM
Portales, NM
Santa Fe, NM
NEW YORK
Alfred, NY
Brooklyn, NY
Buffalo, NY
Garden City, NY
New York, NY
Rochester, NY
Syracuse, NY
NORTH CAROLINA
Apex, NC
Asheville, NC
Boone, NC
Charlotte, NC
China Grove, NC
Durham, NC
Fayetteville, NC
Greenville, NC
Jamestown, NC
Misenheimer, NC
Mount Airy, NC
Pembroke, NC
Raleigh, NC
SOUTH CAROLINA
Beaufort, SC
Charleston, SC
Columbia, SC
Conway, SC
Graniteville, SC
Greenville, SC
Greenwood, SC
Orangeburg, SC
Rock Hill, SC
Spartanburg, SC
TENNESSEE
Blountville, TN
Clarksville, TN
Collegedale, TN
Gallatin, TN
Johnson City, TN
Knoxville, TN
Memphis, TN
Morristown, TN
Murfreesboro, TN
Nashville, TN
TEXAS
Abilene, TX
Arlington, TX
Austin, TX
Beaumont, TX
Brownsville, TX
Commerce, TX
Corpus Christi, TX
Dallas, TX
Denison, TX
El Paso, TX
Houston, TX
Huntsville, TX
Laredo, TX
WYOMING
Casper, WY
Laramie, WY
Torrington, WY
CANADA
ALBERTA
Calgary, AB
Edmonton, AB
Fort McMurray, AB
Lethbridge, AB
Lloydminster, AB
Olds, AB
Red Deer, AB
BRITISH
COLUMBIA
Abbotsford, BC
Burnaby, BC
Castlegar, BC
Delta, BC
Kamloops, BC
Nanaimo, BC
Prince George, BC
Richmond, BC
Surrey, BC
Vancouver, BC
Victoria, BC
MANITOBA
Brandon, MB
Winnipeg, MB
NEW BRUNSWICK
Bathurst, NB
Moncton, NB
NEWFOUNDLAND AND LABRADOR
Carbondale, IL
Carterville, IL
Champaign, IL
Decatur, IL
Edwardsville, IL
Glen Ellyn, IL
Joliet, IL
Malta, IL
Normal, IL
Peoria, IL
Schaumburg, IL
Springfield, IL
University Park, IL
INDIANA
Bloomington, IN
Columbus, IN
Evansville, IN
Fort Wayne, IN
Gary, IN
Indianapolis, IN
Kokomo, IN
Lafayette, IN
Lawrenceburg, IN
Madison, IN
Muncie, IN
New Albany, IN
Richmond, IN
Sellersburg, IN
South Bend, IN
Terre Haute, IN
IOWA
Ames, IA
Cedar Rapids, IA
Iowa City, IA
Ottumwa, IA
Sioux City, IA
Waterloo, IA
KANSAS
Kansas City, KS
Lawrence, KS
Manhattan, KS
Wichita, KS
KENTUCKY
Ashland, KY
Bowling Green, KY
Erlanger, KY
Highland Heights, KY
Louisville, KY
Morehead, KY
Lansing, MI
Livonia, MI
Mount Pleasant, MI
Sault Ste. Marie, M
Troy, MI
University Center, MI
Warren, MI
MINNESOTA
Alexandria, MN
Brooklyn Park, MN
Duluth, MN
Eden Prairie, MN
Granite Falls, MN
Mankato, MN
MISSISSIPPI
Goodman, MS
Jackson, MS
Mississippi State, MS
Raymond, MS
University, MS
MISSOURI
Berkley, MO
Cape Girardeau, MO
Columbia, MO
Cottleville, MO
Joplin, MO
Kansas City, MO
Kirksville, MO
Park Hills, MO
Poplar Bluff, MO
Rolla, MO
Sedalia, MO
Springfield, MO
St. Joseph, MO
St. Louis, MO
Warrensburg, MO
MONTANA
Bozeman, MT
Missoula, MT
NEBRASKA
Lincoln, NE
North Platte, NE
Omaha, NE
NEVADA
Henderson, NV
Las Vegas, NV
North Las Vegas, NV
Winnemucca, NV
Wilmington, NC
NORTH DAKOTA
Bismarck, ND
OHIO
Akron, OH
Cincinnati, OH
Cleveland, OH
Columbus, OH
Fairfield, OH
Findlay, OH
Kirtland, OH
Lima, OH
Maumee, OH
Newark, OH
North
Royalton, OH
Rio Grande, OH
Toledo, OH
Warren, OH
Youngstown, OH
OKLAHOMA
Altus, OK
Bethany, OK
Edmond, OK
Norman, OK
Oklahoma City, OK
Tonkawa, OK
Tulsa, OK
OREGON
Bend, OR
Coos Bay, OR
Eugene, OR
Gresham, OR
Klamath Falls, OR
Medford, OR
Oregon City, OR
Portland, OR
White City, OR
PENNSYLVANIA
Bloomsburg, PA
Blue Bell, PA
Gettysburg, PA
Harrisburg, PA
Lancaster, PA
Newtown, PA
Philadelphia, PA
Pittsburgh, PA
Wilkes-Barre, PA
York, PA
Lubbock, TX
Lufkin, TX
Mesquite, TX
San Antonio, TX
Victoria, TX
Waxahachie, TX
Weatherford, TX
Wichita Falls, TX
UTAH
Cedar City, UT
Kaysville, UT
Logan, UT
Ogden, UT
Orem, UT
Salt Lake City, UT
VIRGINIA
Daleville, VA
Fredericksburg, VA
Lynchburg, VA
Manassas, VA
Norfolk, VA
Roanoke, VA
Salem, VA
Staunton, VA
Suffolk, VA
Virginia Beach, VA
Wytheville, VA
WASHINGTON
Auburn, WA
Bellingham, WA
Bremerton, WA
Ellensburg, WA
Ephrata, WA
Olympia, WA
Pasco, WA
Rockingham, WA
Seattle, WA
Shoreline, WA
Spokane, WA
WEST VIRGINIA
Ona, WV
WISCONSIN
La Crosse, WI
Milwaukee, WI
Mukwonago, WI
St. John’s, NL
NOVA SCOTIA
Halifax, NS
ONTARIO
Brockville, ON
Hamilton, ON
London, ON
Milton, ON
Mississauga, ON
Niagara-on-the-Lake, ON
North Bay, ON North York, ON
Ottawa, ON
Toronto, ON
Welland, ON
Windsor, ON
QUEBEC
Côte Saint-Luc, QB
Montreal, QB
SASKATCHEWAN
Melfort, SK Moose Jaw, SK
Nipawin, SK
Prince Albert, SK
Saskatoon, SK
YUKON TERRITORY
Whitehorse, YU
UNITED KINGDOM
Elgin, UK
GHAZNI
Kingdom of Bahrain, GHA
Thomasville, GHA
EGYPT
Cairo, EG
JORDAN
Amman, JOR
NEW ZEALAND
Taradale, NZ
CFPAI Certified Fluid Power Accredited Instructor
Tentative Certification Review Training
IFPS offers onsite review training for small groups of at least 10 persons. An IFPS accredited instructor visits your company to conduct the review. Contact kpollander@ifps.org for details of the scheduled onsite reviews listed below.
HYDRAULIC SPECIALIST
May 1-3, Mukwonago, WI, MSOE. Written test: May 4.
CFPE Certified Fluid Power Engineer
CFPS Certified Fluid Power Specialist (Must Obtain CFPHS & CFPPS)
CFPHS Certified Fluid Power Hydraulic Specialist
CFPPS Certified Fluid Power Pneumatic Specialist
CFPECS Certified Fluid Power Electronic Controls Specialist
CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT)
CFPIHT Certified Fluid Power Industrial Hydraulic Technician
CFPMHT Certified Fluid Power Mobile Hydraulic Technician
CFPPT
Certified Fluid Power
Pneumatic Technician
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
May 8-11, Fairfield, OH, CFC Industrial Training, Written test: May 12.
Aug. 14-17, Fairfield, OH, CFC Industrial Training, Written test: Aug. 18.
Dec. 4-7, 2023, Fairfield, OH, CFC Industrial Training. Written test: Dec. 8, 2023.
ELECTRONIC CONTROLS SPECIALIST
July 24-27, Fairfield, OH, CFC Industrial Training. Written test: July 27.
PNEUMATIC SPECIALIST
June 19-22, Fairfield, OH, CFC Industrial Training. Written test: June 23.
Nov. 13-16, Fairfield, OH, CFC Industrial Training. Written test: Nov. 17.
CONNECTOR & CONDUCTOR
May 23-24, Fairfield, OH, CFC Industrial Training. Written and JP test: May 25.
Nov. 15-16, Fairfield, OH, CFC Industrial Training. Written and JP test: Nov. 17.
MOBILE HYDRAULIC MECHANIC
March 27-30, Fairfield, OH, CFC Industrial Training. Written and JP test: March 31.
June 26-29, Fairfield, OH, CFC Industrial Training. Written and JP test: June 31.
Oct. 23-26, Fairfield, OH, CFC Industrial Training. Written and JP test: Oct. 27.
Online Mobile Hydraulic Mechanic certification review for written test is offered through CFC Industrial Training. This course surveys the MHM Study Manual (6.5 hours) and every outcome to prepare you for the written test. Members may e-mail for a 20% coupon code off the list price. Test fees are not included.
INDUSTRIAL HYDRAULIC MECHANIC
June 5-8, Fairfield, OH, CFC Industrial Training. Written and JP test: June 9.
INDUSTRIAL HYDRAULIC TECHNICIAN
April 17-20, Fairfield, OH, CFC Industrial Training. Written and JP test: April 21.
MOBILE HYDRAULIC TECHNICIAN
Sept. 18-21, Fairfield, OH, CFC Industrial Training. Written and JP test: Sept. 22.
PNEUMATIC TECHNICIAN and PNEUMATIC MECHANIC For dates, call CFC Industrial Training at (513)874-3225 or visit www.cfcindustrialtraining.com/.
JOB PERFORMANCE TRAINING
CFC Industrial Training offers an online Job Performance Review that includes stations 1-6 of the mechanic and technician Job Performance tests. Members may e-mail IFPS for a 20% coupon code off the list price. Test fees are not included. CFC also offers live distance learning Job Performance Station Reviews. To register or purchase, contact CFC Industrial Training at (513) 874-3225 or visit www.cfcindustrialtraining.com/.
Whether you are in need of some assistance that will build your brand through traditional media, or are looking for some nontraditional solutions, we are here to help. Simple to complex— we will work with you to clearly understand your project and translate those creative concepts into effective solutions. Let us launch your project forward and help bring your business to new heights.
idpcreative.com
PA | 484.546.0402
MARCH 14-18
CENTRAL HALL
SILVER LOT
LAS VEGAS CONVENTION CENTER
3150 Paradise Rd
Las Vegas, NV 89109
» PURPOSE
The International Fluid Power Exposition is a trade show dedicated to integrating fluid power with other technologies for power transmission and motion control applications.
Aggregates
Asphalt Concrete Safety
DIAMOND LOT
Business Operations Concrete
Engines & Drivetrains
Hauling
Infrastructure Maint.
Jobsite Support
Land Clearing
Portable Power Safety
Technology Solutions
Trucking
Underground
FESTIVAL GROUNDS
Earthmoving Lifting
NORTH HALL
Business Operations
Earthmoving Haulling
Jobsite Support
Land Clearing Lifting Safety
Technology Solutions
Aggregates Asphalt
SOUTH HALL
1st Level
Equipment Components
Infrastructure Maint.
Portable Power
Trucking
Underground
WEST HALL
Earthmoving
2nd Level
IFPE
Engines & Drivetrains
» DATES AND LOCAT i ON Held every three years, IFPE takes place March 14-18 at the Las Vegas Convention Center. IFPE is co-located with CONEXPO-CON/AGG, one of the world’s largest gatherings for the construction industry.
» ATTENDEES
IFPE attracts design engineers and other decision-makers from industries including off-highway vehicles, material handling, manufacturing, production, automation, machine tools, automotive and commercial vehicles, defense and aerospace, and amusement and entertainment technology.
Loop Loop Station
Monorail
Hotel
» EXH i B i TS
IFPE exhibits showcase the latest technologies and innovations in equipment, products, and services for fluid power, motion control, and power transmission. The show also features product-focused and international exhibit pavilions.
SHOW HOURS
The International Fluid Power Exposition, March 14-18 at the Las Vegas Convention Center, is open during the following hours:
2023 OVERVIEW
Fluid Power Industry Bets on IFPE in Vegas
The International Fluid Power Exposition, taking place March 14-18 in Las Vegas, is the leading trade show for the fluid power industry.
TUE: 9a.m. - 5p.m.
WED: 9a.m. - 5p.m.
THU: 9a.m. - 5p.m.
FRI: 9a.m. - 5p.m.
SAT: 9a.m. - 3p.m.
» EDUCAT i ON
IFPE offers targeted education events that provide crucial information on new fluid power, power transmission, and motion control technologies to engineers and others involved in the design and manufacturing process.
» i NDUSTRY SUPPORT
Leading industry organizations and media participate as supporting organizations.
At IFPE, more than 375 exhibitors showcase the latest innovations in fluid power, power transmission, and motion control. Attendees have access to 170 education sessions and workshops providing professional development hours. IFPE co-locates with the CONEXPO-CON/AGG construction trade show at the Las Vegas Convention Center.
IFPE brings industry segments together to display new technologies and products, share knowledge, network, and buy equipment. Every three years at IFPE, industry stakeholders encounter the innovations and insights that equip fluid power engineers and manufacturers for the never-ending quest to increase efficiency, contain costs, and improve the performance of their hydraulic and pneumatic applications.
Capacity Crowds
The Association of Equipment Manufacturers, producer of CONEXPO-CON/ AGG and IFPE, expects the event to be the “biggest in history” and “nearly 5% bigger” than the 2020 record.
The increased crowds can get around the convention center’s campus a little easier this year thanks to a new underground transportation system designed by Elon Musk’s The Boring Company tunnel construction business, which will, for free, shuttle attendees around the campus in under two minutes with Tesla vehicles.
International Trade Center
For international attendees, the International Trade Center, which CONEXPOCON/AGG and IFPE have brought back for this show, helps overseas visitors “connect across oceans and languages,” organizers said.
“The ITC is a really useful resource for international salespeople,” an organizer said. “Having an area with translators on call in a quiet environment where we can offer an overseas visitor hospitality is valuable. I also find the input and presentations from the staff at the ITC to be useful.”
Education
As always, IFPE offers a plethora of seminars and education sessions, including workshops with professors from the Milwaukee School of Engineering. MSOE’s Medhat Khalil, director of professional education, leads Fundamentals of Hydraulic Systems 101 on Monday at 8 a.m. Then, Paul Michael, an MSOE research chemist, presents Hydraulic Fluid Properties, Efficiency and Contamination Control at 1 p.m.
» OWNERS AND PRODUCER
IFPE is owned by the National Fluid Power Association and the Association of Equipment Manufacturers, which is the show’s producer.
FLEXIBILITY AT ANY LATITUDE AND ANY TEMPERATURE
FLEXIBILITY IN OPERATION AND INSTALLATION
EXTREME BEND RADIUS
HIGH ABRASION & FIRE RESISTANCE COVER
EXTREME FLEXIBILITY, COMPACT DESIGN, AND TIGHT BEND RADIUS
Hydraulic high pressure spiral hoses’ range – Alfabiotech Evolution Minetuff and Evolution LT – designed for applications from 3,000 to 6,000 psi, in diameters from 1/4” to 2”, with minetuff or supertuff covers.
MSHA cover on Alfabiotech Evolution Minetuff. Evolution LT rated for extreme low temperature -67 °F (-55 °C).
Visit us at CONEXPO-CON/AGG 2023 Las Vegas, NV
March 14 – 18, booth S – 83329 www.alfagomma.com
South Hall 3
2023 EXHIBITOR BOOTH LISTINGS
AALBERTS SURFACE TECHNOLOGIES
AC Business Media
Accumulators, Inc.
Adaptall
QUALITY REPAIRS THAT KEEP YOU MOVING.
There’s no substitute for quality. And when it comes to your equipment, you need it operating at peak performance with minimal downtime—which is where quality comes in. From our factory-trained technicians to our on-theshelf OEM New & New Aftermarket parts availability, we’re your go-to source for quality repairs for your equipment. All backed by a 12-month warranty.
To learn more, give us a call or visit us at HYDRAULEX.COM.
1-800-422-4279
sales@hydraulex.com
www.hydraulex.com
National Tube Supply’s fluid power products are precisely manufactured and expertly finished to minimize leakage and ensure longer seal life and optimum performance.
Our experienced team is always available to help customers identify the best product for their project specifications, quality requirements and bottom line. We’ll even work with you to set forecasts for JIT delivery management!
Hydraulic Fluid Line Tubing
Cylinder Barrels
Pneumatic Cylinder Tubing
Pump Barrels
Honed Steel Tubing
Chrome ID Tubing
Chrome OD Tubing
DOM Tubing
Seamless Steel Tubing
Chrome Plated Piston Rods
1045 Steel
Ductile Iron & Alloy
We have a massive inventory at your disposal with 4 locations across North America – most orders ship next day!
The Right Supply, Right On Time.
We’re Delivering Every Day. Solutions in Motion
Our Passion Keeps You Moving.
Pneumatic Rodless Actuators
More Choices. Greater Savings.
When you need pneumatic rodless actuators look no further as W.C. Branham has designed and manufactured a wide range of popular rodless cylinders that can be integrated into endless industrial automation applications. Band, Magnetically Coupled, and Cable.
Learn More Scan Here
Pneumatic Rod Cylinders
ISO, UNITOP, CNOMO, Low Profile, Guided, Short Stroke.
W. C. Branham teams up with Artec SRL in the U.S. and Canada. Artec is a leading 40-year Italian rod cylinder manufacturer with ISO9001:2015 certification. Standard and Stainless Steel configurations. Interchangeable with other brands. Many bore sizes. Custom designs welcome. Friendly.
IFPE EDUCATION TRACKS
IFPE’s education program covers technical topics and trends for executives, engineers, managers, technicians, mechanics, and other fluid power professionals. Below are the general topic areas for IFPE 2023’s education sessions. For more information, visit www.ifpe.com/visit/education.
• IoT- Smart Systems/Connected Systems
• Electrification of Vehicle Powertrains (hybrid to fully electric)
• Electrification of Motion Control
• Equipment Uptime Optimization and Availability
• Energy Efficiency
• Machine Safety
• Autonomous Equipment/Machines
• Professional Development, including career, workforce issues, and economics
8
Monday, March 13
a.m. – 12 p.m.
Workshop: Fundamentals of Hydraulic Systems 101
Presenter: Medhat Khalil, Director of Professional Education, MSOE
This presentation increases awareness of the fundamental concepts of fluid power technology. It will cover some rules of physics about fluid pressure and flow, as well as the generic structure of a hydraulic system, and construction and principal operation of the main components, e.g., pumps, motors, valves, cylinders, and rotary actuators. The course summarizes how to manage all these components in the form of a system that works safely and efficiently. Topics covered will include gauge versus absolute pressure, Pascal’s law, laminar versus turbulent flow, basic construction of hydraulic systems, hydraulic pumps and motors overview, hydraulic valves overview, reciprocating actuators overview, hydraulic accumulators, actuators, and basic hydraulic circuits.
1 – 4 p.m.
Hydraulic Fluid Properties, Efficiency, and Contamination Control
Presenter: Paul Michael, Research Chemist, MSOE
In this course, participants will learn about the composition of oils, the properties of lubricants and how hydraulic fluids can affect machine performance. Conventional, multigrade, synthetic and biodegradable fluids will be discussed. Research studies examining fluid efficiency effects in hydraulic
motors, piston and gear pumps will be presented. The principles of oil analysis and filter selection will be outlined. The seminar concludes with case studies that demonstrates how filter debris analysis can be used to troubleshoot hydraulic system contamination control problems. Topics covered will include hydraulic fluid base stocks and additives, multigrade and synthetic hydraulic fluids, fluid properties and hydraulic system efficiency, basics of in-service fluid analysis and filter selection, and in-service filter analysis case studies.
Tuesday, March 14
9:30 – 10:15 a.m.
Addressing the Workforce Gap
Presenter: Jon Goreham
This session will cover the Fluid Power and Applied Mechatronics Training and Employment Network, a new workforce development model developed by NFPA aimed at forging stronger connections among local technical colleges, industry partners, and high schools.
9:30 – 10:15 a.m.
Contamination Control and Filtration
Presenter: Paul Michael MSOE
Contaminated fluids can cause damage to hydraulic equipment and reduce machine productivity. But keeping up on cleanliness requirements and
understanding all the options for filtration technology can be challenge. This session will discuss how to evaluate fluid cleanliness and implement strategies to ensure that hydraulic fluid starts out and stays clean.
10:45 – 11:30 a.m.
Economic Trends in the Industry
Presenter: Danny Richards
The presentation will begin with an overview of Global Data, its research capabilities, and offerings. This will be followed by a discussion of Global Data's Economic Forecast and scenario analysis. Because Global Data's economists judge that the outlook for growth is highly uncertain, especially in the U.S. and Europe, several U.S. outlook scenarios will be reviewed: This presentation will conclude by highlighting examples of industry-specific forecasts and scenarios for the manufacturing sector in the U.S.
10:45 – 11:30 a.m.
Efficiency in Hydraulic Systems
Presenter: Lane Oltmanns, Gates Corporation
The purpose of this session is to present a simple, yet powerful, online engineering application that can calculate hydraulic system efficiencies from a pressure drop and piping system perspective. Bring your pump output (GPM), hydraulic oil viscosity (cP), and specific gravity (g/ml) and we can run some numbers to get an idea of your piping system efficiencies and losses.
1 – 1:45 p.m.
IFPS Certification Update
Presenter: Donna Pollander, ACA
The International Fluid Power Society certification tests provide an objective, third-party assessment of an individual's technical skill level and are recognized industry-wide. The certification offerings keep pace with changing fluid power and motion control technologies. This session will review training resources and highlight updates taking place with the Society and certification.
1 – 1:45 p.m.
Operator Efficiency
Presenter: Jonathan Meyer
Electronic control on hydraulic equipment has been exponentially increasing over the past two decades. Previously electronic control has primarily focused on increasing the fuel efficiency while maintaining the same level of performance. As machine controllers become more powerful and new sensor technologies emerge, the focus is now switching to operator efficiency. Automation has already become part of our daily lives by having thermostats that can automatically adjust the temperature and devices that can order supplies when low. This automation is expanding into hydraulic machines by simplifying repetitive tasks, assisting when navigating crowded work spaces, and helping less experienced operators
perform better and faster. This presentation will cover some of the latest technologies that are helping operators get more work done quicker and present what is coming in regard to fully automated machines.
2:15 – 3 p.m.
Efficiency in Pneumatic Systems
Presenter: Jon Jensen, SMC Corporation
A brief discussion of demand-side targets for energy efficiency. Topics covered will include methods to improve energy intensive uses of compressed air, pressure control, leak remediation, flow monitoring, and general best practices. The focus will be on how to identify those low-cost projects and design improvements that will reduce demand for compressed air while maintaining productivity.
2:15 – 3 p.m.
Fluid Power Forum Presents:
Workforce and the Importance of Early Recruitment
Presenters: Eric Lanke, Stephanie Scaccianoce
Keeping the pool of fluid power professionals full is no easy task. The workforce shortage is one of the most challenging issues the industry is facing. This session will cover how critical partnerships with tech schools and engineering colleges are to educate and promote careers in the industry through hands-on laboratory experience and internship programs with
major fluid power companies. Brought to you by Fluid Power Forum, a podcast that features interesting and innovative applications of fluid power (hydraulics and pneumatics).
Wednesday, March 15
9:30 – 10:15 a.m.
An Integrated Electro-Hydraulic Unit for Fluid Power Applications
Presenters: Andrea Vacca, Zifan Liu
This research demonstrates a novel design for an electrohydraulic unit made in collaboration between the Maha Fluid Power Research Center of Purdue University and Bosch Rexroth. In this unit, a permanent magnet (PM) electric motor with an internal gear pump are integrated in one housing, eliminating the shaft connection of traditional electric motor and hydraulic pump. When the unit is operating in pumping mode, the stator with electric windings is electrically inverted thus the rotor with permanent magnet is properly actuated and rotate at desired speed or torque). Therefore, the press-fit pump's ring gear is driven, causing the meshing pinion gear to rotate. That provides pressurized fluid to the actuators. For cooling of the stator windings, a small portion of fluid is circulated around the stator windings, through a cartridge orifice between hydraulic pump and electric motor chambers. This electro-hydraulic unit can also operate in motoring quadrant during braking and unloading of actuators for energy recuperation, improving system efficiency.
9:30 – 10:15 a.m.
What Can You Do to Make Your Machine More Efficient?
Presenter: Rance Herren
10:45 – 11:30 a.m.
Electrohydraulic Lunchbox Session
Presenter: Carl Dyke
10:45 – 11:30 a.m.
How Ecosystems are Driving Successful IoT Deployments and Delivering Real ROI to the Industry
Presenter: Adam Livesay
IoT 1.0 was a lot of buzz words with fancy dashboards and companies claiming to provide the complete end-to-end solution to solve every problem. IoT 2.0 is comprised of ecosystems that have formed to deliver high-value solutions to the market. These ecosystems have evolved from the traditional fluid power and industrial supply chains to true IoT ecosystem partners that work together to deliver the right solution to the marketplace. We will examine use cases where industrial supplies, OEMs, IoT providers, and customers work together to design, develop, and deliver the solution.
1 – 1:45 p.m.
Fluid Power Forum Presents: Why
1 mA Matters: Advanced ElectroHydraulic Control of Mobile Machines
Presenters: Austin Sowinski, Eric Lanke, Tim Opperwall
Do you know the effect a single mA of error has on a final grade? Traditionally, construction and agricultural machines have been designed and tuned for an expert operator. There is a closed loop relationship between operator and machine that is changing with the adoption of electro-hydraulic controls, modern sensors, and computational power. Today’s job site requires a machine suited for operator augmentation and automation. This presentation walks through the challenges in enabling the controls transformation through a real-world system example and proposes how future hydraulic control architectures may look. Brought to you by the Fluid Power Podcast.
1 – 1:45 p.m.
The Industry Proven Playbook for a Successful IoT Initiative, Deployment, and ROI
Presenter: Adam Livesay
The mobile machine industrial IoT playbook has been used by hundreds of suppliers, distributors, and OEMs to develop an IoT strategy, manage a successful IoT
project, and deliver industry-leading solutions to the market that return real ROI and value to the OEM and their customers. This playbook was developed over several years by industry insiders. We will examine use cases for each phase of the playbook to allow you to leave with a framework to design, develop, and execute a successful IoT initiative.
2:15 – 3 p.m.
Powertrain Optimization for Compact Mobile Equipment
Presenter: Miguel Onandia, Poclain
Compact mobile equipment, such as small loaders, compactors, or material-handling machines, is experiencing important changes driven by increased environmental consciousness and focus on global warming. The goal is to reduce carbon dioxide emissions in every way possible, pushed in many countries by both governments and customers, so that machine's manufacturers must be prepared to adapt. To support this trend, Poclain's teams have developed innovative solutions such as electrohydraulic transmission, which is taking
the best of both worlds thanks to hydraulics high performances solutions and electrics systems. Poclain is also offering data acquisition systems (IoT technology) to optimize machine's transmission thanks to better understanding of the mission profile.
2:15 –
3p.m.
Sensors – Data and Performance
Presenter: Carl Dyke
Thursday, March 16
9:30 – 10:15 a.m.
Fluid Power Forum Presents: Contamination Standards Prevent Machine Failure and Boost Cost Savings
Presenters: Barry Verdegan, Eric Lanke, Ivan Sheffield
Machine failures are costly. Contamination is the root cause of 80% of hydraulic failures, and 90% of these failures are preventable. Standards, such as those created by ISO or national standards bodies, establish a level playing field to allow manufacturers, suppliers, and users to speak a common language and use best practices to develop and implement contamination control programs. Standards developed by ISO
TC131/SC6 and other technical committees allow you to measure particulate contamination in fluids, set required cleanliness levels, choose appropriate filters for your application, compare products and identify false claims, and monitor the success of contamination control efforts. The speakers use real world examples to demonstrate the financial benefits of standard based contamination control programs. Brought to you by Fluid Power Forum, a podcast that features interesting and innovative applications of fluid power (hydraulics and pneumatics).
9:30 – 10:15 a.m.
The Value of Telematics: featuring (Live) Use Cases
Presenter: Chad Repp
Learn about telematics, specifically data logging and leveraging the data through analytics to set notifications for predictive maintenance, predetermined alerts for operator safety (collision avoidance), and how this all converts back to ROI for the OEM.
10:45 – 11:30 a.m.
Advancing Autonomy from Operator Assist to Driverless Vehicles
Presenter: Peter Bleday
In this session we will discuss the technical, social, and economic factors that are needed to advance vehicles in the construction industry from their current state to a state of high operator assistance and augmentation, and then to a state of driverless automation. This discussion will include some of the significant challenges OEMs and suppliers face with new technologies and "edge case" management around the vehicle and job site. During the discussion we will also focus on how to overcome these challenges and the future of the construction autonomous vehicle industry.
10:45 – 11:30 a.m.
Functional Safety requirements under the Machinery Directive 2006/42/EC
Presenter: Matthias Haynl
Functional safety standards can be a challenge to apply in particular if not considered early on in the life cycle. This session will discuss how to identify and apply the relevant functional safety standards for construction/agriculture/mining machinery.
1 – 1:45 p.m.
Cybersecurity
Presenter: John McDonald, TUV Rheinland
Smart devices have infiltrated every aspect of our lives, and equipment, vehicle, and manufacturing environments aren't exempt from the onslaught. Customers that used be worried only about price
and capabilities are now questioning manufacturers on the quality of the cybersecurity in their devices, since a single hacker can take control of a vehicle and run rampant, resulting in significant vulnerability for the manufacturer. The industry has started to address these issues with standards such as IEC 62443, but many manufacturers are just starting to wonder how they can implement a cybersecurity program. This session will review the relevant cybersecurity standards in this space, the elements you need to consider when implementing a product cybersecurity program and suggest an approach to help you get started.
1
–
1:45 p.m.
Electrification of Vehicle Powertrains
Presenter: Cameron Guernsey, Product Manager at Danfoss Editron
As the world moves towards net-zero goals, there is a stronger focus than ever on electrifying all types of applications, including mobile machinery. Acknowledging these trends, Danfoss has invested in the zero-emission future through its Editron division. The next step in Danfoss' journey is the development of its eSolutions portfolio, which builds upon Danfoss' existing PLUS+1 platform by applying the same machine application knowledge to control electrified machines.
2:15
–
2:45 p.m.
Fluid Power and Machinery Safety Working Together
Presenters: Jenny Tuertscher, Rob Johnson
Often fluid power is overlooked when it comes to machinery safety. This presentation will provide attendees with an understanding of the requirements for the control of hazardous energy using lockout, tagout, or alternative methods as they relate to fluid power. We will share the requirements from OSHA 29 CFR 1910.147 and ANSI/ASSP Z244.1 and the B11 series of standards for machinery safety.
2:15 – 3 p.m.
Reducing Energy Consumption in Fluid Power Systems
Presenter: Dan Helgerson, Fluid Power Journal Technical Editor
While a great deal of effort is being made to produce more efficient compressors, pumps, and motors, there has not been enough attention given to providing more efficient systems. The new floating cup pumps developed by INNAS DV have overall efficiencies of better than 95%, but when dumping flow across a relief valve, the system is 100% inefficient. Efficient components do not guarantee an efficient system.
WHY ACCUMULATORS FAIL
There are a number of reasons why a bladder or diaphragm in an accumulator typically fails.
The most common reason is that the compression ratio is exceeded. The compression ratio is determined by dividing the maximum system pressure by the precharge pressure. Typically, a compression ratio of less than 4:1 is acceptable for a bladder-type accumulator and 6:1 for a diaphragm accumulator. Maintaining a proper compression ratio is necessary to ensure that excessive flexing of the bladder or diaphragm doesn’t occur.
Another common failure is due to incorrect precharge pressure. It is necessary that the precharge pressure be less than the system minimum operating pressure. If the bladder-style accumulator was precharged to a higher pressure than manufacturer specifications, the bladder may fail. Under normal operation, the bladder is compressed in the shell by hydraulic oil and only expands to rest against the anti-extrusion poppet valve in the bottom of the accumulator when the system is off. Higher-than-specified precharge pressures can cause the bladder to pound against the poppet valve in the bottom of the accumulator when system pressure drops but is still within the operating range of the machine. This makes the bladder fail where it is pushed against the anti-extrusion poppet valve. Hydraulic fluid leaking into the gas side of an accumulator effectively reduces the working volume of the accumulator.
Another possible failure with rapid cycling that fully discharges the accumulator is that the bladder can get pinched under the poppet valve as shown in figure 1. This may also occur if the precharge occurs too rapidly.
High oil temperature may also cause the bladder or diaphragm to prematurely fail, as the polymers used in the construction of a bladder or diaphragm have reduced life expectancy at elevated temperatures. It is also important to understand that when precharging the bladder or diaphragm, it is necessary to perform this slowly, as rapidly expanding gas will cause the temperature to decrease rapidly and may subject the polymers to brittle fracture due to the extreme cold.
A leak in the bladder will cause the gas precharge to escape into the hydraulic system. This may result in a sponginess in the actuators. It can also allow hydraulic fluid to enter the bladder. A pinhole leak on the side of the bladder is difficult to diagnose. The bladder may effectively seal the hole when the hydraulic side pressure is low but expose the hole when the hydraulic pressure is increased and the gas compresses, moving the bladder away from the accumulator wall.
In a piston-style accumulator, the dynamic seal wear allows the gas to escape and permits hydraulic fluid to migrate into the gas chamber. As shown in figure 2, the hydraulic fluid in the gas chamber reduces the effective working volume of the accumulator. •
TEST YOUR SKILLS
1.
A higher-than-specified precharge pressure in a bladder-style accumulator:
a. is recommended so it doesn’t have to be checked as often.
b. can cause the bladder to be damaged by pounding against the poppet valve.
c. drops as the fluid heats up.
d. results in greater fluid storage during operation.
e. seals any pinhole leaks on the side of the bladder.
See page 54 for the solutions.
CRUSHING & SCREENING Productivity in Hydraulic Control & Monitoring
Forthousands of years, quarrying has supplied building materials, often carried out under arduous conditions far from home by simple, hard-working folk who measured daily output in baskets of rocks. Over the years, what was accomplished with a pickaxe and a shovel evolved into highly automated, mobile production lines that are thousands of times more productive than manual labor. Today, modern workers require rugged solutions that are simple to use and maintain, and in which problems are easily resolved by operators with minimum delay.
Crushing and screening in modern quarries involves crushing large pieces of material into smaller ones and sorting into similar-sized fragments. The starting material is typically freshly quarried or excavated rock or demolition material. Crushing machinery uses different crushing mechanisms, depending on the material. Where a considerable size reduction is required, the output of one crusher can feed a second one, and in some cases, a third may be necessary. Traditionally, material crushing has occurred in permanent locations where heavy-duty tipping trucks transport material to the plant. Recently, mobile crushing plant has proved practical and cost effective. Such equipment moves with wheels or caterpillar tracks to a convenient position. The same principles used in crushing and screening are now also applied to shredding, washing, and recycling machines that shred and sort waste for recycling.
Two- and three-port valves
The Webtec VFC Series of pressure compensated flow control valves ensure that actuator speeds remain virtually constant over all load conditions. When controlling the speed of a hydraulic motor powering a conveyor, for example, the motor rotates at the same speed, regardless of the amount of material on the conveyor belt. This ensures a consistent delivery position of the material. Once set, the weatherproof adjusting knob can be locked in position to avoid any inadvertent adjustment.
If a two-port flow control valve is used with a fixed displacement pump, then the excess pump flow has to pass across the system relief valve at full pressure. The excess pump flow is the flow the pump creates above the flow control valve’s setting. If the hydraulic motor (or other controlled actuator) is operating lightly loaded, then a large pressure difference across the flow control valve occurs. Flow passing across the relief valve and the large pressure drop across the flow control valve create inefficiency that results in heat.
When used with a pressure-limiting variable displacement pump, the pump flow rate automatically reduces to the rate determined by the flow control valve’s setting. But if the motor is lightly loaded, the pump outlet pressure remains at its maximum, i.e., the set pressure of the pump compensator. Since power in a hydraulic system is a product of flow multiplied by pressure, the output of a variable displacement pump only partially matches the power requirements of the actuator. Varying the pump displacement matches the flow requirement, but the pressure at the pump outlet can still be higher than what’s required by the actuator’s load. A lightly loaded actuator is still likely to cause a large pressure drop across the flow control valve, causing inefficiency and consequent heat generation. Two-port flow control valves are therefore best suited to variable pump systems in which the actuator only operates lightly loaded for short periods of its duty cycle. They can, of course, be used outside of these parameters by making provision for adequate fluid cooling.
A mobile crushing plant uses either an electromechanical or a hydraulic drive for the main crushing mechanism. Auxiliary functions are most often carried out by hydraulic cylinders and motors (actuators), which are ideally suited to operation in harsh working environments. Auxiliary functions on mobile crushers include track and conveyor drives, conveyor folding and positioning, and screen and deflector plate operation.
For over 40 years, Webtec has supported crushing-and-screening OEMs with rugged and reliable hydraulic valves that control the speed of actuators with varying loads, such as conveyor drive motors. The nature of the job means that motors can see rapidly varying loads, but ensuring that all machines work together requires continuous steady throughput. Machine designers, therefore, use pressure-compensated flow controls, including those made by Webtec, such as its conventional flow control valves, including three-port priority flow dividers and mono-block directional, flow, and pressure control valves.
A three-port flow control valve, also known as a priority flow divider, provides a pressure-compensated flow output from its priority port in a similar way to the two-port valve. So as before, this can be used to maintain a virtually constant speed of an actuator regardless of its load. Any excess flow directs to the valve’s bypass port. When used with a fixed displacement pump, therefore, the excess pump flow can be directed back to tank via the bypass port, rather than across the system relief valve. This means that the pump outlet pressure will only be slightly higher than the load pressure (typically 1-1.5 MPa [145-217 psi]) rather than the full relief valve pressure, thus reducing heat generation when the actuator is lightly loaded. So depending on the application, a simple, fixed displacement pump combined with a three-port flow control valve may be as efficient as a more complex and costly variable displacement pump and a two-port valve. U.S. research suggests that the average power transmission efficiency of current mobile hydraulic systems is around 21%. Both fuel prices and global emission targets demand improvement in that figure. An emphasis on control valve efficiencies is becoming increasingly important.
Rather than directing the bypass outlet flow to tank, it can also be used to power another function on the machine. In this case the priority port flow remains virtually constant, and the available bypass flow is the difference between the inlet and priority flows. In some applications this may negate the need for a dual pump to power both functions.
If remote speed adjustment is required, a proportional version of the priority flow divider enables an electronic signal to be used to vary the priority flow. All the necessary electronics are incorporated within the valve so it only requires an input signal that can be provided by a simple toggle or rocker switch to increase or decrease the priority flow setting. The hydraulic function of the valve is the same as for the manually adjusted version.
Monoblock valves
A priority flow divider can also be combined with a manually operated directional valve to enable the priority flow to be switched between two machine functions such as conveyor drives. A two-stage relief valve is also included to limit the maximum pressure in the priority outlet port. So the Webtec CV120 combination valve combines a single directional, flow, and pressure control in one compact, simple-to-install unit, with the opportunity for multiple valves to be connected in series using a high-pressure carry-over port. When connecting valves in series, a second pressure relief valve is incorporated in order to limit the carry-over port pressure. Combining functions in this way reduces both the cost and size of the installation by reducing the number of hoses and fittings required. Despite its compact design the CV120 combination valve doesn’t compromise on functionality, using the same pressure compensated flow control technology as used in the VFD range.
When the movement of two actuators needs to be synchronized, for example with track drives or conveyor positioning mechanisms, the FDC Series flow divider/combiner can be used to ensure equal flows to or from each actuator, irrespective of load. In one direction the flow dividing function will split the single flow input into two outputs, either equally or in a pre-defined ratio. In the opposite direction the two flow inputs will be combined into one, either equally or in the same predefined ratio as before. For cylinder applications, a levelling-up function may also be required to ensure that both cylinders fully reach their end strokes.
Certain functions on mobile crushers need to be interlocked to prevent dangerous or damaging situations. For example, operation of the track drive may need to be prevented unless a conveyor is moved to a transport position. The Webtec SV/DV 80 diverter valve can be used in such situations to prevent flow to a certain function unless mechanically actuated by the appropriate section of the machine.
solution partner
Condition monitoring and maintenance
For pumps and motors that operate for long periods of time, continuously monitoring their performance can provide an early warning of a potentially costly failure. Webtec’s new CTA flow monitor has been designed for this purpose and can be installed either in the pump outlet line to monitor pump flow rate or in the supply line to a conveyor motor for example.
Excavator mounted solutions
For short-term tasks such as demolition work, where the task involved does not warrant the use of a dedicated machine, crushing attachments are often used that can be mounted onto an excavator boom and used to process smaller quantities of material.
Auto flow meter monitoring pump output flow.
By comparing the pump or motor flow rate with its rotational speed, a rapid assessment can be made of the component’s state of wear and action can be taken before a catastrophic failure occurs. A particularly useful feature of the CTA flow monitor is that its output can be observed remotely via a machine’s telematic system. For autonomous vehicles or machinery that is not constantly supervised by operators, a data link can be established via the cloud to provide an early warning of an impending component failure, thus saving the potential cost and time wastage of a catastrophic failure.
Webtec’s DHM Series hydraulic multimeter can be an invaluable tool for system troubleshooting and optimizing the setup of attachments such as crusher buckets. An integral part of the installation of this equipment is making sure the excavator is setup correctly for the bucket to do its work. If the excavator isn’t set properly, then the bucket won’t function to specification. The hydraulic multimeter enables the measurement of flow, pressure, peak pressure, temperature, hydraulic power, and pump volumetric efficiency. As part of a predictive maintenance program, measuring a pump’s volumetric efficiency by determining its loss of flow with increasing pressure is one of the best ways of assessing the pump’s condition. The in-built loading valve of the hydraulic multimeter means that this measurement can be simply carried out independently of the machine operation. The unit can then transfer data wirelessly for further analysis or the recording of performance history.
Also useful for system troubleshooting is the versatile HPM7000 Series portable data logger, which, by connecting to suitable sensors, can monitor such properties as pressure, flow, temperature, frequencies, speeds, and fluid contamination. This base model can be extended by the use of plug-in input modules to extend the number of CAN bus channels that can be monitored or for interfacing with analogue sensors using voltage or current outputs. The unit has a variety of different modes with the ability to data log 16 million measured values per test at a variable interval sample rate as short as 1ms and with a total possible storage size of 12GB.
Many leading OEMs in the crushing and screening industry have come to rely on Webtec’s wellproven products owing to their performance and reliability while operating under the harshest of conditions found in this industry. •
A total pump failure, for example, not only results in lost production while the pump is being replaced, it may require a considerable amount of time and effort to flush the system of contamination to avoid subsequent failures.
The RFS 200 flow hours counter is another new device used with a preventive maintenance program. Installed in the input or output line of critical hydraulic components, it monitors their actual usage time, thus enabling routine maintenance to take place when the component is approaching the end of its useful life. Compared to monitoring engine run time, the flow monitor can record individual component usage in applications where not all machine functions operate continuously.
Surround Sensing for Mobile Machines
By Enrique Busquets, Director, Product Area Mobile Electronics and Electrification,Worksite safety – protecting operators and equipment from collision and damage – has always been a high priority for the off-highway industry. Whether at construction sites, agricultural fields, or road-building locations, keeping personnel safe from dangerous accidents and reducing machine damage from collisions has been the focus of many different kinds of efforts and investments.
Worker safety training and well-established, properly followed worksite safety procedures will always have an important role in these efforts. However, there is a significant opportunity for mobile machine builders to design features and capabilities into their machines that can enhance their safe operation.
To satisfy these goals, mobile machine builders are beginning to incorporate a range of new surround sensor technologies designed specifically to improve collision avoidance capabilities and enhance operator focus and situation awareness. This technology is being made available in modular, integrated platforms that include radar, ultrasonic, and camera components that can be software-integrated, making it easier for machine builders to integrate within their existing machine platforms.
Status of surround sensing
Until recently, there had been limited investment by machine builders in the use of available surround sensing technology to improve the level of “situational awareness” crucial to improve jobsite safety. In agricultural applications, machine builders have been adding backup cameras to allow them to reverse a tractor more easily or combine and hitch to a piece of equipment.
In general the kinds of sensing technology now widely used in passenger and commercial on-road vehicles to provide driver alerts and collision avoidance capabilities have not been extensively exploited. This is, in part, due to the need to “ruggedize” these electronics for use in machines operating in more demanding environments and in equipment that typically generates higher levels of vibration that can rapidly degrade electronics.
The value of surround sensing is providing operators with a new array of sensory information about the risks and obstacles, both fixed and moving, that they could encounter operating their equipment. One
of the challenges associated with introducing vision systems, radar, and ultrasonics into mobile machines is the greater complexity of their operating environments, relative to commercial and passenger vehicles.
Compared to straightforward roads, driveways, and parking lots, risk conditions on a construction site or vegetable field can pop up randomly, which makes seeing the next risk more difficult.
The new surround sensing technologies need to be carefully selected and integrated into a given machine, based on that machine’s functions and the characteristics of its operating environment. So while each off-highway application is unique, there are three common principles that can be used to guide which types of sensory systems to use and how to integrate them into the machine.
Collision avoidance. Collision avoidance is the most easily recognized surround sensing capability. To varying degrees, cameras, ultrasonic sensors, and radar can all contribute to warning an operator of the imminent risk of collision and either alert them quickly enough to stop or change course, or automatically halt the vehicle.
Accomplishing some of these goals, including automatic stopping, will require integrating the surround sensing inputs into the overall vehicle operation; it may also call for more sophisticated controller hardware and software, as well as making sure that an off-highway vehicle’s CANbus network can support the added data from the sensors.
Focus on the job. Experienced equipment operators are typically well-trained in situational awareness. But it does demand, to a certain extent, that their attention be somewhat divided. A forklift operator pulling skids of material from shelves in a large warehouse has to simultaneously manage the skid removal task and constantly double-check that the backup space is safe and unimpeded.
Self-explanatory operator assistance. One of the advantages of this new generation of mobile machine sensors is that, combined with the more advanced controllers and software now routinely used on off-highway equipment, operators can be supplied with information that is literally self-explanatory. For example, video combined with ultrasonic sensors can be utilized with specialized operator cab displays to indicate which obstacles in the path of travel have a lower or higher risk of collision.
Leading technology suppliers like Bosch Rexroth are now offering these sensor portfolios in modular packages. They can also supply key insights into the right sensors, or combination of sensors, and will provide the greatest enhancement to operator safety and reduction of worksite accidents and collisions.
Each mobile machine, and the operating environment it is engineered for, presents unique working conditions and application requirements that can help determine the appropriate surround sensing technologies for a given application.
Multicamera vision systems
As noted earlier, camera systems are not yet widespread options for off-highway equipment. There is a new range of camera systems now available that have been adapted from passenger and commercial vehicles, and improved to provide long-term performance in the more demanding off-highway applications.
There are now multicamera systems that provide high-quality imaging with other features that make them a powerful tool to keep operators fully aware of surrounding conditions. After all, our strongest and most fast-acting sense is our vision.
These multicamera systems have high-resolution imaging of 1200 x 800 pixels. They also come with a specialized controller/CPU that provides best-in-class stitching together of the images, as well as zoom functions and the ability to add graphical overlays.
These more advanced features make multicamera systems, with their ability to provide a 360-degree view of conditions, a more effective tool for improving safety. The new systems take into account operating characteristics such as vehicle speed, steering angle, and drive direction to continuously stitch together a coherent image. They also feature detailed guidance on where to position the cameras on each vehicle’s exterior for the most effective coverage.
Ultrasonic sensors for mobile machines
Ultrasonics can provide highly valuable short-range operating conditions. These sensors have been adapted from the latest generation of automotive sensors, with configurations that can range from one to 12 sensors, depending on the size of the machine and its typical operating environment.
The software has been created to achieve measurement rates of up to 120 milliseconds. In the kinds of sensors now available, ultrasonics provide an accurate description of static or moving objects and obstacles as close as 15 centimeters to 5 meters away, depending on the signal resolution.
Applications in which ultrasonics makes the most sense are those with tighter operating environments and many static and moving obstacles, like skid steer loaders on construction sites. A key aspect to assess of these ultrasonic platforms is how they generate and process signals from multiple sensors.
Some systems will actuate all the ultrasonic sensors at the same time. But this runs the risk of generating false positives or negatives and other noise that can impact the quality of the sensing. More advanced systems trigger the sensors in precisely controlled sequences and process the ultrasonic echoes rapidly to capture a much more accurate portrait of the surrounding system.
In some more advanced applications, the ultrasonic data can be overlaid on the 360-degree video inputs, with colored graphics indicating which obstacles are closer and of higher risk.
Radar for fast-moving machines
While ultrasonics can provide obstacle data from close-at-hand objects, there is a significant role that radar can supply for situational awareness and surround sensing. Radar is most useful for detecting objects farther off than ultrasonics, and it can detect risks while a vehicle is in rapid movement.
There is a wide range of construction and agricultural equipment that also has to travel significant distances on roads at speeds up to 40 kilometers per hour. Radar-based collision avoidance systems offer the highest degree of safety for these vehicles when they need to operate on the roads.
The radar systems being offered by leading suppliers feature both near- and far-range integrated antennas and ground-detection filters, and can detect and track up to 40 objects simultaneously.
Since each mobile machine has unique operating characteristics, there may not be a need to have all three kinds of surround sensing technology – cameras, ultrasonics, and radar – incorporated into one piece of equipment. However, many widely used machines could benefit from all three.
Wheel loaders used on construction sites often drive at high speeds from one part of a site to another or to another. At the same time, a wheel loader’s work often involves them in tight situations where ultrasonics play a more valuable role.
And in these wheel loaders, the operator cab is typically mounted high on the machine because the operator needs a 360-degree view of the surroundings. Additional multicamera displays augment the view. Combined with the potential for graphic overlays of the ultrasonic sensors, their ability to focus on the job and have self-explanatory data on risks can improve safety and reduce the risk of accident.
New generation of sensors
To make the best use of this technology, mobile machine builders who consider the potential advantages of the new generation of surround sensors will need to assess how to modify the design and engineering of their systems.
First they’ll need an intelligent assessment of which of sensor packages make the most effective contribution to safety, based on a machine’s dimensions, operating conditions, and demands on the operator.
Machine designs may need to be modified with expert guidance. Mounting brackets and wiring harnesses must be carefully selected, with particular care about exactly where cameras or ultrasonic sensors are placed to provide the most effective system performance.
Modifications to HMI displays may also be needed so video can be easily integrated. There will also need to be an assessment of controller capabilities and communications backbone. In the case of high-quality video, Ethernet-based connectivity may be needed on the machine.
The right high-performance surround sensing technology offers the potential to significantly enhance safety on the jobsite and out in the field. It can reduce operator stress with assistance systems that make it easier to keep them situationally aware of risks around them.
The systems have now been optimized and ruggedized for the off-highway machine environment, offering a new suite of tools to improve safety, reduce the risk of accidents and equipment damage and ultimately help off-highway operations run more smoothly. •
Ashcroft S1 OEM Pressure Transducer: High Quality, Economical and Built to Last
Get reliable pressure measurements with an economical transducer for demanding OEM applications. The Ashcroft® S1 OEM pressure transducer is designed to meet the requirements of mobile hydraulic, off road vehicle, construction equipment, performance racing, agriculture, and refrigeration applications.
The S1 is constructed for high-volume manufacturing, allowing Ashcroft to offer a high-quality transducer at a cost-effective price with quick lead times to meet OEM needs. Its features include:
• Reliability: Field-proven, all stainless-steel thin film CVD-based sensor technology for exceptional cycle life and repeatability, and pressure ranges that span from vacuum up to 10,000 psi
• High vibration and shock resistance: CVD sensor with added vibrationresistant technology includes a cushioning media applied to wire bonds and points susceptible to high vibration for increased protection
• TruAccuracy™ performance: Ensures rated accuracy out of the box, so it’s ready for installation with no additional calibration adjustments required
• Protection: IP65 or IP67 levels of ingress protection (depending on electrical connection used) and the ability to operate in temperatures from -40°F to 257°F (-40°C to 125°C)
• Flexible construction: Wide range of process connections, electrical connections, outputs and pressure ranges along with fitting materials to meet your needs
1
QUICK: MAIN has a large and diverse inventory, including specials for same day shipping. MAIN’s US production facility, specialized manufacturing processes, and large raw material inventory allow your custom non-stock parts to be shipped in days. 2
INFORMED: MAIN’s engineers are active on ISO and SAE committees. They are available to assist you with your flange needs, call 800.521.7918, e-mail to info@MAINmfg.com or fax 810.953.1385.
3
DEPENDABLE: MAIN has 60 years of experience in designing, developing, manufacturing and distributing quality hydraulic flanges and components.
Grand Blanc, MI 800.521.7918; FAX: 810.953.1385
E-mail: info@mainmfg.com
Web: www. mainmfg.com/fpj
UC-CSS-230V-AK
Our 230v Air Knife allows you to shrink a Clean Seal Capsule onto a hose, tube, or pipe assembly in under one second. A single pass through the Air Knife is all that is needed to fully seal single or multiple assemblies. A Magnetic puck ensures that the capsule is held on properly, allowing for easy capsule sealing on 45° or 90° fittings. A large 110mm Air Knife opening allows for sealing fittings up to 3”.
Main benefits of the UC-CSS-230V-AK and Clean Seal Capsules include:
• Save time by sealing multiple assemblies in under one second.
• Eliminate excessive Injection molded cap and plug inventory.
• Clean Seal Capsules stay on until you're ready to remove them with the built in tear strip.
• Eliminate re-contamination during transportation and storage.
• Provide a tamper-proof seal of hose and tube assemblies.
StepLock Piston Seals
These seals are designed for 7,000 psi working pressure and pressure spikes to 20,000 psi.
Lap Cut Wear Rings
Replace glass filled wear rings with precision machined POM wear rings that are lap cut to improve the life of all hydraulic system components, and to reduce breakage from pressure spikes.
6,000 psi Cylinders
We offer Attachment cylinders for shorter stroke applications that see higher work induced compressive forces, and the long stroke cylinders that are designed for longer stroke applications that see higher work induced tension forces.
6,000 psi Rotary Unions
Our 6,000 psi rotary unions are made to order. These can be built with most common port sizes, have 1 or more passages in and out, and a center port for electrical.
Our newest product is Manchester replacement ID grooving inserts, in steel cutting grade. These are used with our stepped boring bar, which can fit into bores of 1.181” up to 2.16” deep, bores of 1.475” up to 3.55” deep, and bores of 1.831 up to 5” deep with a maximum groove depth of .315”.
PRODUCT SPOTLIGHT
Winters' StabiliZR® Gauges
StabiliZR® gauges are engineered with a pointer shaft extending out the back of the movement with two paddles added to the shaft. This extended portion of the shaft is encased by a cap filled with a dampening compound. The cap is then permanently sealed, preventing the dampening compound from leaking. Because the case isn’t filled, it can operate over a broader range of temperatures.”
https://winters.com/downloads/articles/the-continuousevolution-of-pressure-measurement/
c ontact us to showcase your products and services in the Product Spotlight. This special section is a high-profile area offering product- specific advertising. Visit fluidpowerjournal.com for more information or to view our media guide.
Genuine Donaldson Internormen-Eaton Velcon-Parker
We're hydraulic filter experts. We've been doing it for over 30 years. We're very competitive and happy to serve your needs. If you need hydraulic filter application help, we know the right questions, and we can give you the right answers.
J/T Hydraulics & Service Co. Inc.
1601 W. 25th Street • Houston, TX 77008
Local: 713.984.9727 • Toll Free: 800.591.8280
Fax: 713.861.2250 • www.jthydraulics.com
Clippard Solenoid-Operated PTFE or PEEK Media Isolation & Pinch Valves
Ideal for use with sensitive or corrosive media, this line is an excellent alternative to traditional mechanical valves when media contamination is a concern, as they interact with tubing, PTFE or PEEK, and never touch the material being dispensed! Many features include low power consumption, superior design, low dead volume, high cycle life, fast response and more. Many styles and options available. Proudly made in the USA. View more information and White Papers.
www.clippard.com
Go ahead. Push me. Ordinary heavy duty not heavy enough?
Heavy-Duty Mill Cylinders for:
• Induction-Hardened, Chrome-Plated Rods
• Heavy Wall Tubing
• Replaceable Glands & Retainer Rings
• High-Load Piston Design
Think indestructible and call Yates. www.yatesind.com
Yates Industries (HQ) 586.778.7680
Yates Cylinders Alabama 256.351.8081
Yates Cylinders Georgia 678.355.2240
Yates Cylinders Ohio 513.217.6777
Accumulators Suppressor
Hydraulic Noise and Shock Suppressor
Wilkes and McLean manufactures an In Line Noise and Shock Suppressor for hydraulics and is a stocking distributor of Nacol Accumulators. Our suppressors eliminate pulsations, which greatly reduces noise and vibration from applications from a few gallons up to 200 gallons. We stock all of our suppressor sizes as well as Nacol Accumulators and parts from 1/5 of a pint up to 15 gallons, in our Schaumburg, Illinois facility.
877.534.6445 | info@wilkesandmclean.com www.wilkesandmclean.com
MP Filtri MYclean filter series is a market innovation breakthrough for mobile and industrial equipment OEM’s. Our patented polygon endcap interface feature ensures only original filter elements are used guaranteeing maximum performance and safety throughout the machine's design lifespan.
MP Filtri USA, Inc.
1181 Richland Commerce Drive
Quakertown, PA 18951 Toll free: 888-263-0090
sales@mpfiltriusa.com www.mpfiltriusa.com
c ontact us to showcase your products and services in the Product Spotlight. This special section is a high-profile area offering product- specific advertising. Visit fluidpowerjournal.com for more information or to view our media guide.
LITERATURE REVIEW
Practical Design for Fluid Power Motion Control
Dalton Hydraulic Cylinders
For over 20 years, Dalton has supplied quality hydraulic components to customers in North and South America. Visit our website, www.daltonhydraulic. com or contact us at 1-888-898-5031 or sales@daltonhydraulic.com to see how we can help you
Dalton Hydraulic Cylinders. Phone: 1.888.898.5031
Email: sales@daltonhydraulic.com www.daltonhydraulic.com
NOVAPEAK 5000LT Series - by Eagle Hydraulic
The NovaPeak 5000LT series is a battery replacement that uses supercapacitor technology. This product is specifically designed to supply maximum power for your heavy user’s application. It can withstand more than 50 000 cycles and charges in minutes. Never worry about discharged batteries again! This device charges in between dumps, through the connection with the truck.
LT stands for LOW TEMPERATURE:
NEW Operating temperature to -25 °C
Eagle Hydraulic Inc. eagle-hydraulic.com
sales@eagle-hydraulic.com
1-877-382-2850
Practical Design for Fluid Power Motion Control by Delta Computer Systems
President Peter Nachtwey is a free guide to effective hydraulic design. The advice given in this practical guide will help you build machines optimized for precise position and pressure/force control, ensuring that both the hydraulics, electrics, and controls are tuned for performance and precision. Request your FREE copy at deltamotion.com.
Delta Computer Systems, Inc.
1-360-254-8688
deltamotion.com
Fluid Gear Products®
Fluid Gear Products® is your ideal source for innovative high quality drive solutions. Whether your application requires our high speed/high torque radial piston motors, gear reducers or a combination unit, we are sure that our products engineered to fit your application will meet and exceed your requirements and expectations. We also offer components and custom products for your design.
Fluid Gear Products, Inc.
115 Market Street
Marcus Hook, PA 19061
Ph. 610-200-6045
Email: sales@fluidgearproducts.com
Quality Hydraulic Pumps, Motors and Valve
FluiDyne Fluid Power provides high quality new and remanufactured hydraulic pumps, motors and valves to the fluid power industry. With our large scale inventory, and streamlined shop, most of our products ship within one day. All of our products are always fully tested and a test report is enclosed with each shipment. FluiDyne is an ISO 9001:2015 company and has 30+ year history of supply and service to the distributors, repair shops and OEM’s using hydraulic components.
Call, email, chat…we’re ready to help!
FluiDyne Fluid Power
586.296.7200
sales@fluidynefp.com
www.fluidynefp.com
Genuine Metaris
Orbital Motors
Genuine Metaris Orbital Motors are your best low speed high torque motor option in an economical and compact design. Utilizing proven Roller-Star technology, these motors allow for high efficiency, smooth operation and a long operational life. Our motors are functional replacements for common motors in the market today such as Eaton®/Char-Lynn®, Danfoss®, Parker® and White®. Motors are in-stock and shipping daily.
Hydraulex
Toll Free: 800.422.4279
Tel: 586.949.4240
Email: sales@hydraulex.com
www.orbitalmotors.net
Hydraulic Flanges and Components
New 120 page catalog includes popular styles of MAIN Manufacturing’s extensive offering of carbon and stainless Hydraulic Flanges and Components – ready for immediate shipment. Metric ordering information, weld specs, and dimensional information included. The “Quick Reference Guide” helps specify less popular items often stocked or quickly manufactured (generally 3-4 days) at our US plant.
MAIN Manufacturing Products, Inc.
Grand Blanc, MI
800.521.7918; FAX: 810.953.1385
E-mail: info@mainmfg.com
www.mainmfg.com/fpj
Hengst Filtration Offers A Wide Range of Products
Hengst Filtration offers a wide range of high-quality hydraulic filters, elements and accessories to meet the most stringent industry standards and requirements. With innovative glass fiber, multi-layered elements and filters handling flow rates exceeding 500 gpm and pressures of 6500 psi, our products are designed to handle demanding high, low or suction return pressures found in most hydraulic systems and processes. Contact Hengst North America for more information at sales-hydraulics@hengst.com
Hengst of North America, Inc.
www.hengst.com
Compressed Air Filtration
Brochure offers a comprehensive overview of the company’s complete line of compressed air filtration products. Highlighted is the patented family of Extractor/Dryers. These two-stage, point of use filters remove contaminates to a 5-micron rating with flow ranges of 15 to 2,000 scfm. Additional products available include the SuperStar Membrane Dryer, .01 Micron Filter, Refrigerated Extractor/Dryer, and much more.
La-Man Corporation
800.348.2463
www.laman.com
Bex-Proof Electrohydraulics
STARCYL CYLINDERS CORP.
Starcyl Star6 heavy duty hydraulic cylinders
NFPA interchangeable, 1.5 to 20” bore, 20 different mounts, LVDT, manifold. Ask about special designs
Manufactured in South Carolina.
Starcyl 25 years in business, manufacturing several product lines of pneumatic and hydraulic cylinders.
Starcyl Cylinders
877.782.7295
20 Ron Joye Road
Hemingway, SC 29554
www.starcyl.com
LITERATURE REVIEW continued
Hydraulic Live Swivels Catalog
Inline and 90° hydraulic live swivels. Available in sizes from 1/8" to 2-1/2", rated to 10,000 PSI, heat treated, superior quality alloy steel, chrome or stainless steel ball bearings, withstands heavy side loads, burnished (micro smooth) barrel bores, Viton®, Aflas®, or Teflon® encapsulated seals, zinc or nickel plated, available in 304 and 440 stainless steel, full flow - low pressure drop, rebuilding kits available.
Super Swivels
Phone: 763.784.5531
Email: sales@superswivels.com
Fax: 763.784.7423
Website: www.superswivels.com
Trelleborg Industrial Product Range
Trelleborg Sealing Solutions offers a comprehensive sealing portfolio – a one-stop-shop providing the best in elastomer, silicone, thermoplastic, PTFE and composite technologies. Using our expertise, we help customers achieve cost-effective, durable solutions that match their business requirements in the fluid power and off-highway industries.
Learn More For application support, contact our team at tssusa@trelleborg.com
»THE UPGRADE TO the 60-ton press heating problem was due to the absence of a solid pilot pressure plug inside the valve, allowing the main pump pressure to force oil backward through the pilot pressure line and over the small 65 psi (0.44 MPa) check. Installing the solid plug solved the problem.
The correct answer to Test Your Skills on page 41 is b.
SOLUTIONS
GEAR REDUCERS for mobile and industrial applications. From 200 to 1.5 million LB-FT WHEEL-TRACK-WINCH DRIVES From 700 to 400,000 LB-FT SLEW BEARING-SLEW DRIVES From 12 to 200 INCH Dia. HYDRAULIC MOTORS Orbital, Axial Piston, Radial Piston HYDRAULIC ACTUATORS Helical and Rack-and-pinion CLOSE SYSTEM PUMPS-MOTOR From 0.85 to 4.15 CIR
ADVERTISER INDEX
Hydraulex 24, 53, 55 1-800-422-4279 hydraulex.com
J/T Hydraulics & Service Co 50 800-591-8280 jthydraulics.com
La-Man Corp 53 800-348-2463 laman.com
Lubriplate, Inc OBC 800-733-4755 lubriplate.com
Main Manufacturing Products48, 53, 55 800-521-7918 mainmfg.com
MOCAP Inc 29 1-800-633-6885 mocap.com
MP Filtri USA Inc 45, 51 215-529-1300 mpfiltriusa.com
National Tube Supply 25 800-229-6872 nationaltubesupply.com
daltonhydraulic.com
Delta Motion 37, 52 1-360-254-8688 deltamotion.com
Eagle Hydraulic 28, 52 1-450-433-2800 eagle-hydraulic.com
EUFMC 3 eufmc.com
European Industrial Products Inc IFC 800-375-4002 eip.us.com
Fluid Gear Products 52 610-200-6045 fluidgearproducts.com
Fluid Power SME 38 281-888-6460 fluidpowersme.com
FluiDyne Fluid Power 21, 53, 55 586-296-7200 fluidynefp.com
Hallite Seals International Ltd 29 260-489-0002 hallite.com
Harvard Corporation 9 608-882-6330 harvardcorp.com/mining
HAWE North America, Inc 39 704-509-1599 hawe.com
Parker Hannifin Corp 40 419-644-4311 parker.com/electrification
Starcyl Cylinders Corp 26, 53 877-782-7295 starcyl.com
Super Swivels 54 763-784-5531 superswivels.com
Tele Radio LLC 27 866-629-0780 teleradio.com
Trelleborg Sealing Solutions 43, 54 trelleborg.com
Ultra Clean Technologies 49 1-800-791-9111 ultracleantech.com
VEST Inc 31 248-649-9550 vestusa.com
Wilkes & McLean Ltd 30, 51 877-534-6445 wilkesandmclean.com
Winters Instruments 22, 50 winters.com
Yates Cylinders, Inc 1, 51 586-778-7680 yatesind.com
Young Powertech, Inc 55 610-558-0760 youngpowertech.com
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Lubriplate’s complete line of ultra high-performance, hydraulic fluids has been designed to provide a wide range of benefits including: extended fluid change intervals, cooler operating temperatures, reduced friction and reduced downtime. Products include...
SYN LUBE SERIES 32-68 100%
•High-Performance, 100% Synthetic, Polyalphaolefin (PAO)-Based Fluids.
•Provides extended drain inter vals and excellent compatibility with seals.
• Available in ISO Viscosity Grades 32, 46 and 68.
HO SERIES HYDRAULIC OILS PETROLEUM
•Premium-Quality, Petroleum-Based Hydraulic Oils (ISO Grades 32-100).
• Anti-wear fortified to protect hydraulic system components.
•High aniline points ensure long seal life with fewer leaks.
SFGO ULTRA SERIES 7-68 NSF H1
•NSF H1 Registered and NSF ISO 21469 Certified - Food Machinery Grade.
•High Performance, 100% Synthetic Food Machinery Grade Fluids.
• Available in ISO Viscosity Grades 7, 15, 22, 32, 46 and 68.
•Fortified with Lubriplate’s proprietar y anti-wear additive
SYNXTREME FRH1-46
•High-Performance, FM Approved, Fire Resistant Hydraulic Fluid.
•NSF H1 Registered and NSF ISO 21469 Certified - Food Machinery Grade.
•ECO-Friendly, Readily Biodegradable (OECD 301F).
•Fortified with Lubriplate’s proprietar y anti-wear additive
ZF SERIES HYDRAULIC FLUIDS ECO
•Hea vy-Duty, High-Performance, Extended Life, Hydraulic Fluids.
•ECO-Friendly - Free of zinc or silicone compounds.
•Provides long ser vice life and extended fluid change intervals.
BIO-BASED GREEN SERIES ECO
• Vegetable-Based Oils for use in environmentally sensitive applications.
•ECO-Friendly - Ultimately Biodegradable (Pw1).
•Zinc-free additives provide exceptional anti-wear and anti-rust protection.
MARINE SAFE SERIES ECO
•For equipment operating in environmentally sensitive locations.
•Zinc-free and non-toxic to aqua tic life.
•Exceeds U.S. EPA LC50 and US Fish and Wildlife requirements.
•Meets or exceeds the requirements of most hydraulic equipment
BIO-SYNXTREME HF SERIES ECO
• Advanced Synthetic Polyalkylene Glycol (PAG)-based hydraulic fluids.
•Designed for environmentally sensitive industrial and marine applications.
• Meets U.S. EPA Vessel General Permit (VGP) Requirements. Readily biodegradable.
•Does not leave a sheen on the water.