Fluid Power Journal January 2023

JANUARY 2023

fluidpowerjournal.com

IFPE PREVIEW ISSUE

Can Hydraulic Actuators Play Well with Others?

LEANING INTO THE E-MOBILITY MARKET ELECTRONIC LOAD SENSING FOR HYDRAULIC PUMPS Innovative Designs & Publishing • 3245 Freemansburg Avenue • Palmer, PA 18045-7118

Figure It Out Notable Words: IFPS Board President p.4

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The International Fluid Power Exposition (IFPE) is the place where engineers meet to:

CONNECT WITH TOP MANUFACTURES Including Bosch Rexroth, Danfoss Power Solutions, Poclain, IFM Efector, Hawe Hydraulik, Husco, and 375+ more!

Spark new ideas with in-depth technical conversations with other engineers.

Join your peers from these OEMs: ∙ Caterpillar Inc

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Discover solutions current suppliers can offer to your unique challenges.

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Find new partners among suppliers pushing the envelope on what fluid power can do.

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“ There’s no other show in the world I think that brings the OEM machine manufacturers and the suppliers as close together as this show. It’s a good place to meet and learn about what’s going on. In the Americas, in the Western Hemisphere, this is the show for fluid power.”

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IN THIS ISSUE

January 2023 VOLUME 29 • ISSUE 1

6

20

Features 6

Test Your Skills The Application of Actuators 10 Cover Story Peaceful Coexistence: Can Hydraulic Actuators Play Well with Others?

SHA technology is unknown to many professionals.

14 Begin the Countdown to March Madness Uncertainty three years ago gives way to ‘Viva Las Vegas!’

20 Vertical Integration: Electronic Load Sensing for Hydraulic Pumps These controllers fuse system pressure with flow requirements.

22 Line Drive: Bucher Leans into the E-Mobility Market The hydraulics company focuses on quieter, more efficient machines that last longer.

Departments

10 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 Empowers Opportunity.

4

Notable Words

5

Figure It Out

15

IFPS Update

25

Component Showcase

26

Product Spotlight

29

NFPA Update

31

Classifieds

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

January 2023

3

N O TA B L E W O R D S

2023 Board President: IFPS Grows to ‘extend our reach’

By Scott Sardina, PE, CFPAI, CFPHS, CFPECS, 2023 IFPS Board President and Chairperson

The important thing is not to stop questioning.

Curiosity has its own reason for existence.

– Albert Einstein

»

A CUSTOMER RECENTLY asked me: if 10,000 psi is high pressure, why is it considered high pressure, and what is so magical about that number?

My first thought was, how do you not understand that 10,000 psi is high pressure? I knew I couldn’t say that, but I think many people in hydraulics would have a similar gut reaction. After thinking for a while, I understood that this concept could be difficult, and the numbers may not make sense to someone unfamiliar with the industry or without hands-on experience. After all, 10,000 psi is high pressure compared to a standard 3,000 psi system. It is all relative, and I explained that most “standard” systems are under 6,000 psi. Pressure is application specific, but most people in the industry consider anything above 6,000 psi high pressure. This explanation made sense to the customer, but I wondered how many people work with hydraulics without full understanding.

Use Adaconn

R

The example I just gave clearly shows the need for education in the industry. Not only for the people designing components and systems, but also for those assembling, servicing, and using the equipment. Engineers need hands-on experience so they sense the power and capabilities of what they design. Do you have a good sense of what 60 psi feels like?

What about 1,000 psi? Is the hydraulic oil too hot, too cold, or where it needs to be?

I was once on a service call with an experienced field person who went into the call with a simple pressure gauge. He could put his hand against the tank and tell you if the oil was at the right temperature. It is important to build these instincts and understand the intent of the design. Fluid power requires cross-discipline education to understand theory, application, and reality.

The fluid power industry is a tight-knit community, and so is IFPS.

Inserta Components for R

Compact, Leak-Free Hydraulic Systems

ADACONN® + INSERTA® Blue Bell, PA 215.643.1900 215.643.0192 www.adaconn.com www.inserta.com © 2022 Adaconn® + Inserta®

4

January 2023

I am in a coffee shop writing this. The road in front is under reconstruction, and a couple excavators sit across the street. They are driven by hydraulics, and I notice that kids from the neighborhood point at the machines and say, “Wow!” and “That’s cool!” I agree – they are pretty cool!

Many cool and interesting things happen with fluid power. Each of you in this industry should be proud. Fluid power is all around us, and some things could not happen without it. My wife can attest that if hydraulics or pneumatics are nearby, I’ll talk about it ad nauseam. Let’s keep that childlike curiosity and excitement for what we do.

I don’t typically ponder the past too much. But there are a few lessons to point out before looking to the future. The International Fluid Power Society has been through a lot over the past few years. It has increased educational opportunities, improved certifications, and updated the industry’s reference manual. IFPS continues to adapt and grow. We extend our reach so that everyone has the opportunity to understand fluid power. I am excited for this year and where we are going. The fluid power industry is a tightknit community, and so is IFPS. I have been with IFPS for seven years, and it feels like my second family. I encourage you to join the family, share your input, participate in a meeting, and learn that 10,000 psi is a decent amount of pressure.

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FIGURE IT OUT

New Problem 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

Cargo Ship’s Cylinders Drifted

By Robert Sheaf, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM, CFC Industrial Training

»

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 Director of Creative Services: Erica Montes 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

B

P

T

TO OTHER CIRCUITS

2023 BOARD OF DIRECTORS President: Scott Sardina, PE, CFPAI, CFPHS Waterclock Engineering Immediate Past President: Denis Poirier Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCC Danfoss Power Solutions First Vice President: Jeff Hodges, CFPAI/AJPP, CFPMHM- Altec Industries Treasurer: Lisa DeBenedetto, CFPS GS 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, CFPS Sun Hydraulics Vice President Membership: Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM - Open Loop Energy

1:1 4 BAR

CLOSING ORIFICE "A"

DAMPENING ORIFICE "B"

SET @ 2000 PSI

OPENING ORIFICE "C"

0.75H

DIRECTORS-AT-LARGE Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHT Altec 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, CFPMIP The Boeing Company

A

25HP 1750 RPM

13 GPM

A

B

P

T

A CARGO SHIP uses a hydraulic power unit to open and close several hatch doors in the grain storage areas. There are eight cylinders and valves located close to eight doors with the HPU on a lower deck. The circuit they attached was the only one they had. All the cylinders were 5-inch bore with 3½-inch diameter rods. Extending the cylinder would open the door.

Originally, pressing a button for any solenoid energized the solenoid on the unloading valve on top of the main relief and turned on the electric motor. However, someone had rewired the electric motor to run continuously and changed the pump to a pressure-compensated 20-gpm piston.

We found the relief unloading solenoid was energized when the electric motor ran. The pump compensator was set to 2,000 psi while the relief was set to 2,250 psi.

They’re now experiencing a new problem with cylinders drifting out and causing hatch doors to open.

What could be causing the problem?

See page 31 for the solution.

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.

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Solution to the November 2022 problem:

Relocating HPU Causes Start-up Problem

Moving an HPU further away from the machine should not cause a problem if the conductor size is increased. The cylinder had a 2:1 ratio when comparing the area ratios. The oil volume leaving the cylinder when retracting is twice the flow rate entering the cylinder. The spools commonly used for this application have larger orifices for the larger retract flow and smaller orifices for controlling the rod's lower flow. Switching the A and B hose connections feeding the cylinder circuit solved the problem.

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.

January 2023

5

TEST YOUR SKILLS

THE APPLICATION OF ACTUATORS A

ctuators translate hydraulic energy back into mechanical energy.

This can be in the form of linear or rotary motion.

Linear actuators Linear output devices include hydraulic cylinders, rams, cushioning devices, servo positioners, and pressure intensifiers. Hydraulic cylinders are available in single-acting and double-acting types, as shown in figure 1. Single-acting cylinders normally have a single rod. Double-acting cylinders come with a single rod or double rod. Double-acting double-rod cylinders provide equal force and velocity for a given pressure and flow rate if both rods are the same diameter because the annular areas on both sides of the piston are equal. Double-rod cylinders used for steering applications provide equal movement for the same steering-wheel rotation in either direction.

(a)

(b)

(c) Figure 1: The symbols for single- and double-acting cylinders.

Cushions are used in cylinders to decelerate the movement of the piston and rod as a means to limit mechanical shock. Cushions may be installed in either or both ends of a cylinder. Fixed cushions consist of metering orifices in the head or rod ends of the cylinder to decelerate the cylinder rod. A cylinder with fixed cushions on both the rod end and the cap end is shown in figure 2a. Adjustable cushions commonly consist of variable orifices that are adjusted by turning a threaded screw.

When a cylinder rod is equipped with a cushion, a free-flow check valve is installed to allow unrestricted incoming flow to the piston. The cylinder symbolized in figure 2b has an adjustable rod-end cushion that is operative only at the end of the extension stroke. High mass or high-velocity loads can cause severe pressure intensification in cushioned cylinders.

Use something other than cushions to decelerate these types of loads.

Note that ISO 1219-1 uses only one diagonal arrow through the piston for cylinders with adjustable cushions on both ends. For cylinders with 6

January 2023

one nonadjustable cushion and one adjustable cushion, the diagonal arrow would only be through the adjustable cushion. Older drawings may show diagonal arrows through both cushion symbols if both ends are adjustable.

(a) Figure 2: Fixed and adjustable cushions.

(b)

Single-acting and ram A number of linear device symbols are sometimes misidentified because they are used infrequently. Figure 3 illustrates a hydraulic ram symbol. A hydraulic ram is a cylinder in which the Figure 3: Single-acting ram. rod area is equal to or greater than 50% of the bore area.

Hydraulic rams may be single or double acting, but their main application is to exert the working force while extending. Gravity or some other means retracts the rod of a single-acting ram. If the ram is double acting, hydraulic oil retracts the rod, but the retraction force is small in comparison to the extension force.

Figure 4 shows the symbol for a pressure intensifier. The symbol for a hydraulic intensifier shows two different bore diameter cylinders in a single housing.

The outlet at the end of the smaller bore cylinder provides high-pressure oil as the cylinder rod extends. A double check Figure 4: Air-to-hydraulic intensifier. valve arrangement is used to fill the cylinder at the rod end of the smaller bore cylinder as the cylinder rod is retracted. Cycling the intensifier provides high-pressure low-volume oil at the outlet. The outlet pressure is determined by multiplying the pressure at the rod end of the larger bore cylinder by the ratio of the area of the larger bore cylinder to the area of the smaller bore cylinder. For example, a pressure of 2,000 psi and an area ratio of 3 to 1 would theoretically generate an intensified pressure of 6,000 psi (2,000 psi × 3:1 ratio).

Telescoping cylinders Most telescopic cylinders are single acting. Telescopic cylinders consist of a series of nested tubular rod segments called sleeves. Each sleeve extends individually during extension. There may be up to five sleeves in a cylinder. A long working stroke and a short collapsed length result,

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making them ideal for applications such as industrial life trucks and large tilt bed or dump trucks. An inherent feature of telescopic cylinders, due to sequencing smaller diameter sleeves, is a reduction of force capability and an increase of velocity during each succeeding stage.

Telescoping cylinders may also be double acting, although these are not very common. Because of the small areas involved in the retracting phase, retracting Figure 5: Telescoping cylinder. forces are quite low.

Double-acting telescoping cylinders are typically used in refuse haulers, which require high compaction forces and a long stroke, but retraction force requirements are very small.

Hydraulic motors Just as linear actuators convert fluid power to linear motion, rotary actuators convert it to rotary motion. Fluid pushes into the inlet of the rotary actuator and causes the output shaft to rotate. Resistance to rotation by an external load creates pressure in the hydraulic circuit and the inlet of the rotary actuator. Hydraulic motor is the name usually given to an actuator that continually rotates. Motors closely resemble pumps in construction. Instead of pushing on the fluid as the pump does, motors are pushed by the fluid and develop torque and continuous rotating motion as output members in the hydraulic system.

All hydraulic motors have several factors in common. Each needs a surface area acted upon by a pressure differential. This surface is rectangular in gear and vane motors and circular in radial and axial piston motors. The surface area in each kind of motor is mechanically connected to an output shaft from which the mechanical energy is delivered. Finally, the porting of the pressure fluid to the pressure surface must be timed in each type of hydraulic motor to sustain continuous rotation.

The maximum performance of a motor in terms of pressure, flow, torque output, speed, efficiency, expected life, and physical configuration is determined by the: • Pressure capability of internal and external components.

• Internal leakage characteristics.

• Efficiency of force and power transmittal.

Hydraulic motors are rated according to displacement (size), torque capability, speed, and maximum pressure limitations. Displacement is the amount of fluid required to turn the motor output shaft one revolution. Figure 6 shows that displacement is equal to the fluid capacity of one motor chamber multiplied by the number of chambers the motor contains. Motor displacement is expressed in cubic inches per revolution (in3/rev) or cubic centimeters per revolution (cm3/rev) and may be referred to as CIR (cubic inches per revolution), CID (cubic inches displacement), or CCR (cubic centimeters per rotation). CID and CIR are all acronyms for cubic inches.

Displacement of hydraulic motors may be fixed or variable. With input flow and operating pressure constant, the fixed displacement motor provides constant torque and constant speed. Under the same conditions, the variable displacement motor provides variable torque and variable speed.

Figure 6: Hydraulic motor.

Motors are generally characterized in three ways: by class, type, and whether they are fixed or variable in displacement.

Motors can be classed high-speed, low-torque (HSLT); low-speed, hightorque (LSHT); or limited rotation motors, also called torque actuators.

In many applications, the motor operates continuously at relatively high rpm. Examples are fan drives, generator drives, and compressor drives.

While the speed is high and reasonably constant, the load may be either steady, as in fan drives, or quite variable, as in compressors or generators.

HSLT motors are excellent for these applications. The four primary types of HSLT motors are axial piston, bent axis piston, vane, and gear.

In some applications, the motor must move a relatively heavy load at lower speeds and constant torque. A motor for a crane is one such application. LSHT motors often perform this type of work. Some LSHT motors operate smoothly down to 1 or 2 rpm.

Ideally, an LSHT motor should have high starting and stall torque efficiencies, and good volumetric and mechanical efficiencies. They should start smoothly under full load and provide full torque over their entire speed range. Ideally, these motors should exhibit little or no torque ripple throughout their speed range, and velocity variation at an average speed at constant pressure should be minimal. Basic LSHT motor designs include internal gear, cam lobe, rolling vane, and radial piston.

Positive displacement motors are typically classified as external or internal gear motors; balanced or unbalanced vane motors; and in-line axial, bent axis, or radial piston motors.

Fixed or variable. All the motors named above are available as fixed displacement. Vane and piston motors are often configured to have variable displacement.

Fixed displacement. A positive, fixed displacement hydraulic pump produces specific flow based on its rpm and displacement. A positive, fixed displacement hydraulic motor is the mirror image of this in that it produces a specific rpm based on its displacement and input flow.

Variable displacement. An unbalanced vane motor is made variable by allowing the circular cam ring to move into or out of a coaxial alignment with the rotating group. When the axes are aligned, there is no displacement as the vanes rotate but remain at half-extension through the revolution. When the axes are at maximum misalignment, there is maximum displacement as the vanes rotate and move from minimum to maximum extension through the first half of the arc.

Continued on Page 8

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January 2023

7

Continued from page 7 Piston motors are made variable by limiting the stroke of the pistons.

In an axial piston motor, this is done by adjusting the angle of approach to the swashplate. An in-line axial motor has a swashplate that is adjustable. With a bent axis motor, the barrel is angled to the fixed swashplate.

A radial piston motor is made variable by an adjustable cam ring.

Some radial piston motors have two discrete positions for the cam ring so that they are dual displacement. Some have a minimum displacement above zero, and some have a full variable displacement that goes from minimum to full. In addition, some motors lift the pistons off the cam altogether, which allows the motor to freewheel.

Rotary actuators (limited rotation motors). Modifications of the rotary motor are sometimes found in industrial machinery where special motions are required. One is the limited rotation motor that does not permit continuous rotation in either direction. The vane-type version has a movable vane that forms two chambers in an annulus. Pressure exerted against either side of the vane causes it to rotate and turn the rotor and output shaft. Rotation is limited to less than 360° by the width of the body segment containing inlet and outlet porting. Another version of the limited rotation motor is the piston type, which converts the linear motion of a cylinder into rotary motion through a crank arm.

D

Take control – it’s easy.

"Delta’s RMCTools programming software is fast and freely available. Before we even purchased an RMC, I downloaded the software and tried programming with it.

I really like how fast the development process can be.”

4 in. Pitch Diameter

Figure 7: Rack and pinion actuator.

AB P T

A gear-type rotary actuator uses one or two racks with pinion gears driven by hydraulic cylinders to rotate a pinion shaft. This type of limited rotation actuator can exceed 360° of rotation because it is limited only by the practical length of the rack. •

Richard Watson Controls Engineer, Clansman Dynamics East Kilbride, Scotland

Exhibiting at IFPE 2023 Visit us at booth: S80047

Clansman Dynamics a designer and builder of robust metals-processing and handling equipment, integrates Delta RMC controllers into its state-of-the-art robotics systems to easily control and maintain its motion design.

Delta RMC motion controllers and graphical RMCTools software make it easy for you to develop, control and maintain complex motion design.

TEST YOUR SKILLS

1.

Find your competitive edge.

Visit our website for full Clansman case study or one about your industry or application.

Watch our training videos and see how easily Delta can do the heavy lifting with pure precision.

2.

In the graphic above, how is the cylinder equipped?

a.

With a servo positioner.

b.

With a fixed cushioning device.

c.

With a cushioning device retracting.

d.

With an adjustable cushioning device extending.

e.

With an adjustable cushioning device extending and retracting.

If the rotary actuator shown in figure 7 operates on 1,000 psi, what diameter pistons would be necessary for the motor to exert a theoretical torque of 1,500 lb.-ft.?

a.

1.69 inch.

b.

2.39 inch.

c.

2.88 inch.

d.

3.38 inch.

e.

4.50 inch.

See page 31 for the solutions.

8

January 2023

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We’re Delivering

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Our Passion Keeps You Moving.

Pneumatic Rodless Actuators More Choices. Greater Savings.

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Standard and Stainless Steel configurations.

Interchangeable with other brands. Many bore sizes.

Custom designs welcome.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Friendly.

Trusted.

Experienced.

9 January 2023

COVER STORY

Peaceful

Coexistence

Configuration variations easily adjust to fit a machine’s orientation.

Can Hydraulic Actuators Play Well with Others?

By Carl Richter, Vice President and General Manager, Kyntronics

10

January 2023

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Like any product, EMAs have their limitations. They can be expensive and relatively large with loads above 22.2 kN (5,000 lbf ). They must be sized to distribute the forces and require continued maintenance and lubrication. Other challenges with EMAs include: • Fragile mechanical components.

• Metal-to-metal wear.

• Decreased lifespan with increased loads.

• Failure on shock loads.

• Intolerance of side loads.

• Requires a brake to hold a load.

• Position feedback devices may have many mechanical components between the motor and the rod, resulting in backlash.

• Low dynamic contamination ingress protection.

The pros and cons of hydraulic and screwbased actuators are well documented. Engineers are solving these problems as best they can. But a technology exists that combines the benefits of hydraulic and EMA technologies and eliminates their challenges: the SHA –­ servo hydraulic actuator, also called the smart hydraulic actuator. The SHA incorporates all the advantages of hydraulics and the electric screw-based actuator without hoses, leak points, or metal-to-metal wear.

The technology is simple; a servo motor connects to a reversible fixed displacement pump and then couples to a hydraulic actuator. Changing the rotation or speed of the servo motor changes the direction and velocity of the actuator. The actuator fills with hydraulic oil and is sealed. There is no tank or external reservoir.

The motor controls position, force, and velocity with simple PID control.

What’s in a name?

The SHA was originally called an EHA – electrohydraulic actuator. The technology has been around for many years. Its genesis may have been the desire to minimize the size of hydraulic systems on aircraft and move to a “fly-by-wire” solution, with aircraft being fitted with standalone, redundant EHAs. Many of these aircraft continue to fly today. The EHA concept has evolved considerably with the introduction of hydraulics.

The SHA acronym now used throughout the industry may lead to some confusion. It can be an abbreviation for servo hydraulic actuator or smart hydraulic actuator. To add to the confusion, a servo hydraulic actuator is sometimes called a servo-controlled actuated valve. Use caution when researching a solution.

The internal operation of the SHA.

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SHA technology is still unknown to many professionals. OEMs and end users have found the technology beneficial and a differentiating solution. Some appliance manufacturers specify the SHA on new machines instead of the traditional hydraulic power unit. The limitations are with the pump size as well as the motor size. The SHA is not a solution for large (>700 kN (80T)) applications. Connecting a 75 kW (100 hp) motor to a standalone actuator is not practical.

The ability to combine servo control with hydraulics provides many benefits. It eliminates shock issues. The position sensor couples directly to the rod, versus on the encoder in a screw-based solution. Basic control theory states Continued on Page 12

QUALITY REPAIRS THAT KEEP YOU MOVING. HYDRAULIC PUMPS. MOTORS. VALVES. SERVO VALVES. PROPORTIONAL VALVES. CYLINDERS. 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-the-shelf 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.

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January 2023

11

Continued from page 11

The SHA’s gear sizes adjust speed.

Force

Force

A power-unit-only.

vs

137k W

7.5k W

•

Low Load /High Speed Standard Hydraulic System Sizing

Time Low Load /High Speed Load Stroke Phase

Rapid Stroke Phase

Time Low Load /High Speed Load Stroke Phase

The typical profile of the high speed-high force actuator shows kW savings.

12

January 2023

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Smart Electrification

Maximizing Machine Efficiency Integrating Electric and Hydraulics Connecting Off-Road Machinery

Parker enables its partners in the off-road machinery industry access to unsurpassed people, technology and expertise that work together to develop electrification solutions with maximized system efficiency in work and traction applications for a quieter, cleaner tomorrow. parker.com/electrification

2 0 2 3 I F P E S H OW P R E V I E W

Begin the Countdown to March Madness

By Michael Degan, Editor, Fluid Power Journal

»

GET READY FOR March madness. No, not that one. We’re talking about IFPE. If you’re attending the International Fluid Power Exposition, March 14-18 in Las Vegas, you’ll be able to see other people’s faces, shake hands, gather closely in small groups, and you won’t have to sanitize every two minutes.

Three years ago at IFPE, the coronavirus pandemic was just taking hold in the U.S. The sense of uncertainty throughout the exhibit hall was palpable.

Travel restrictions kept some international companies away, and four of fluid power’s biggest players – Parker Hannifin, Eaton, Danfoss, and Bosch Rexroth – stayed home, as the saying goes, out of an abundance of caution.

As the concerns of show organizers grew, they worked closely with health authorities and instituted protocols aimed at preventing the spread of the illness. They encouraged a “no-handshake policy” and suggested attendees greet each other with fist or elbow bumps. They posted hand sanitizers all over the exhibit halls and worked to keep the place cleaner than usual.

Meanwhile, throughout the week of IFPE, U.S. health authorities and the media began talking in evermore urgent tones about the spreading coronavirus. State governments classified businesses as “essential” and “nonessential,” the latter of which were ordered to shut down and keep their employees home. (Most fluid power companies were categorized as essential.) Responding to this growing sense of alarm, and as travel restrictions grew, IFPE organizers decided to end the show a day early, closing Friday instead of Saturday as usual.

After IFPE 2020, organizers reported that more than 130,000 people attended and cancellations were relatively few. Most exhibitors said they experienced “slow but steady foot traffic” during the show, Fluid Power Journal reported in its May 2020 issue.

Three years later, the industry has other worries. Economists forecast a recession this year. Inflation has been driving up costs, but fighting it by raising interest rates slows growth in many fluid power segments.

Supply chain bottlenecks are easing but still common and damaging.

And how can companies keep up with ever-increasing government regulations and mandates?

As fluid power companies wrestle with these and other problems, 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.

14

January 2023

In March at the Las Vegas Convention Center, IFPE sets up shop alongside CONEXPO-CON/AGG, which organizers call the largest construction trade show in North America.

CONEXPO-CON/AGG and IFPE have brought back the International Trade Center to help exhibitors and attendees “connect across oceans and languages,” the organizers said in a press release.

“The international audience for IFPE is significant,” John Rozum, IFPE show director, said in the press release. “These are the engineers, the product planners, the executives from OEMs all over the world. The fluid power and motion control technology on display at IFPE is what makes the construction equipment you see at CONEXPO-CON/AGG work, and that doesn’t change regardless of where the product is made.”

“The ITC is a really useful resource for international salespeople like me,” Matt McCormick, director of international sales at Cimline, said in the press release. “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.”

As always, IFPE offers a plethora of seminars and education sessions.

Two workshops IFPE is heavily promoting are presented by 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. At 1 p.m., Paul Michael, an MSOE research chemist, presents Hydraulic Fluid Properties, Efficiency and Contamination Control. • For more information, visit www.ifpe.com.

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

Our IFPE coverage continues in the February and March issues of Fluid Power Journal and at www.fluidpowerjournal.com.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

Newly Certified Professionals October 2022 CONNECTOR & CONDUCTOR Seth Davis, Pueblo Community College ELECTRONIC CONTROLS SPECIALIST Isaac Frieden, Sun Hydraulics MOBILE HYDRAULIC MECHANIC Bryant Aguilera, Southern California Edison Bryon Tilson, Grant County PUD Christopher Johnson, DOE-BPA Courtney Moses, Chelan County PUD Cody Primm, West Tree Service Desery Hayden, DOE-BPA Jake Reed, Avista

Josh Binder, EWEB Justin Keebler, Avista Kurt Byquist, Avista Levi Steele, Avista Patrick Fortunato, Altec Industries Richard Avila, AEP Steven Smith, Altec Industries Steven Lang, Altec Industries HYDRAULIC SPECIALIST Adam Rushing Dominic Catanzarite, Daman Products Drew Sheffield, Livingston & Haven Joe Kment, IFP Motion Solutions Mark Lasch, Kraft Fluid Systems Kenneth Wood, Livingston & Haven

Samuel Jones, Danfoss Power Solution Sandeep Dhand, Livingston and Haven Samuel Clyde, GCC Monthusi Segau Sam Straka, IFP Motion Solutions William Seal, Controlled Fluids PNEUMATIC SPECIALIST Corey Rasmussen, Rasmussen Designs Shane Draeving, IMI Precision Engineering Jason Stewart SPECIALIST Adam Rushing Corey Rasmussen, Rasmussen Designs Jason Stewart

Handbook's 2nd Edition Released

»

A SECOND EDITION of the Fluid Power Reference Handbook is now available. Highlights of the second edition include: • An expanded symbology section ISO 1219 compliant.

• New and enhanced graphics.

• Expanded topics.

• Updated charts that are ISO, ANSI, and SAE compliant.

The 388-page Fluid Power Reference Handbook is the gold standard on-the-job reference tool of choice for any fluid power professional. IFPS has sold over 2,000 copies since its first publication in 2020.

Soft-cover: Members - $74.95 | Retail - $125.95 Hard-cover: Members - $149.99 |Retail - $165.99

For more information and to purchase, visit www.ifps.org/training-resources-handbook.

Hall of Fame Nominations Open

»

NOMINATIONS ARE OPEN for the Fluid Power Hall of Fame, which

honors professionals who have significantly enriched fluid power.

Anyone can nominate an individual they think has demonstrated excellence during a fluid power career of 25 or more years. A panel of judges selects inductees, who are announced on June 19, Fluid Power Professionals Day. IFPS will honor the inductees at during its annual meeting, Sept. 25-28, in Milwaukee.

Nominations are open until April 15.

The fluid power industry’s success arises from the efforts of dedicated innovators, researchers, engineers, educators, and sales and service personnel. Because of them, the industry thrives. The Fluid Power Hall of Fame acknowledges those who’ve made significant contributions to fluid power technology.

To nominate someone, visit www.surveymonkey.com/r/HWHSCR8.

For more information, visit www.fluidpowerhalloffame.org/.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Certification Materials Available

»

IFPS RECENTLY RELEASED review training PowerPoint presentations to help instructors and students prepare for certifications.

Presentations for five certifications are available: Pneumatic Specialist, Connector & Conductor, Hydraulic Specialist, Mobile Hydraulic Mechanic, and Industrial Hydraulic Mechanic.

The presentations help teachers prepare lessons and candidates study for tests. Each presentation includes illustrations from study manuals, animated circuits, review questions, and instructor notes.

To order, visit www.ifps.org/review-training-powerpoint-presentations.

January 2023

15

I F P S U P D AT E

Certification Empowers Opportunity.

IFPS Welcomes 2023 Board of Directors

»

WITH THE NEW year, IFPS installs its new board of directors, adding four directors-at-large and an honorary position.

Stepping into the top slot on the board is Scott Sardina, who becomes president and chairperson for the year, while 2022 president Denis Poirier Jr. becomes immediate past president. Jeff Hodges becomes first vice president and Lisa DeBenedetto becomes treasurer. Taking four vice-presidential roles are James O’Halek for certification, Chauntelle Baughman for marketing, Daniel Fernandes for education, and Garrett Hoisington for membership.

IFPS also welcomes four new directors-at-large: BJ Wagner, Bruce Bowe, Wade Lowe, and Bradlee Dittmer. Ernie Parker, CFPAI, was named honorary director (ex-officio).

Parker began his education at what is now Minnesota West Technical College, then went to work at the Char-Lynn Company before joining the U.S. Army in January 1968. He was trained as a radar technician and served in Vietnam. He also worked as a legal clerk and personnel supervisor. In 1971 he returned to Char-Lynn, now Eaton. He worked in various capacities as an engineer, assistant purchasing agent, draftsman, electronic tech, and hydraulic tech. While at Eaton after the service, he attended evening school, with the help of the company and the GI Bill, and earned his teaching licenses. In 1974 he purchased a small-engine, construction-equipment, and lawn-and-garden business. In the fall of 1974, he was called to substitute teach in the fluid power technology area at Hennepin Technical College and ended up teaching full time. In 1977 he sold his small-engine business and started Hydra Tech, a fluid power consulting and fabrication company.

Ernie has approximately 30 licenses and certifications. He also completed a mechanical engineering degree in 1999. In 2016 he retired after 42 years of educating students. He now works with IFPS updating manuals, and he has been the technical liaison for the NFPA Vehicle Challenge since 2016.

He is one of IFPS’s longest-serving members.

On the next page are biographies of the new directors-at-large.

Hallite will exhibit at IFPE in Las Vegas.

Visit us at booth S82240.

hallite.com

16

January 2023

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

BJ Wagner, CFPS, CFPMMH, CFPAI, CFPAJPPCC, CFPAJPP, has been a staff test engineer at Manitowoc Cranes and has been with the company for nine years. Wagner earned a bachelor’s in agricultural engineering from Penn State University in 2004 and joined IFPS at that time. He started his career at Case New Holland in 2004, working in product validation. He also worked as a test engineer and as a systems engineer for Volvo Construction Equipment from 2008 to 2013. In his spare time, he enjoys teaching hydraulics classes as part of his business, Wagner Hydraulics.

Bruce Bowe, CFPA, CFPAJPP, CFPMHM, started his heavy equipment mechanic career in 1990, working as a field mechanic for 26 years on a variety of equipment. In 2015 he joined Altec Industries, where he works as a technical trainer, developing training aids and curriculum. He earned his MHM in 2019 and his AI, AJPP, in 2020. He also plans to achieve MMH in 2023. Bowe is originally from Louisville, Kentucky, but currently lives in Phoenix, Arizona, with his wife, Heather, and two dogs. He also enjoys collecting and building hot rod cars and collecting black velvet paintings, of which he has 275.

Wade Lowe, CFPHS, has worked in the fluid power industry since 1984. He is regional manager for Hydraquip. He has a bachelor’s from West Texas State University. Lowe specializes in providing innovative power solutions across multiple markets, including construction, science, material handling, agriculture, oil & gas, defense, and utilities.

He is experienced in hydraulic system design, industrial sales, sales management, AutoCAD, and fluid conveyance. He’s a certified fluid power hydraulic specialist and has served as the Employee-Elect to the Employee-Owned Holdings board of directors on two separate occasions.

He lives just outside of San Antonio with his wife, Kim. Wade and Kim have been married for 33 years and have two grown boys. Wade enjoys hunting, researching Texas history, and is a collector of antique firearms.

See us in Las Vegas March 14th -18th at the IFPE show!

BOOTH #S84057

Bradlee Dittmer, C F P P S, j o i n e d Norgren in September 1996 after graduating from the University of Colorado with a bachelor ’s in mechanical engineering. During his 26 years at Norgren, Dittmer held several positions, from application engineer to business development manager, to air master plus compressed air specialist to product marketing manager of valves. He has been a certified pneumatic specialist since 1998 and is active in the National Fluid Power Association, serving as chair on the technology roadmap committee and part of the review committee for the first robotics scholarship.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

January 2023

17

I F P S U P D AT E

Written Certification Test Locations 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 IFPS if you do not see a location near you.

Every effort will be made to accommodate your needs.

TENTATIVE TESTING DATES FOR ALL LOCATIONS: February 2023 Tuesday 2/7 • Thursday 2/23 March 2023 Tuesday 3/7 • Tuesday 3/28 April 2023 Tuesday 4/11 • Thursday 4/27 May 2023 Tuesday 5/9 • Thursday 5/25

JOB PERFORMANCE TEST LOCATIONS Arizona California Colorado Florida Georgia Maine Michigan Minnesota Montana New Jersey

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January 2023

Nova Scotia Pennsylvania Texas Washington Wyoming Western Australia

ALABAMA Auburn, AL Birmingham, AL 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 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

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 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

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 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

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 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

Certification Empowers Opportunity.

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 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

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 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

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

AVAILABLE IFPS CERTIFICATIONS CFPAI Certified Fluid Power Accredited Instructor CFPAJPP Certified Fluid Power Authorized Job Performance Proctor CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor CFPE Certified Fluid Power Engineer CFPS Certified Fluid Power Specialist (Must Obtain CFPHS & CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist 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

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 Feb. 13-16, Fairfield, OH, CFC Industrial Training.

Written test: Feb. 17.

May 1-3, Mukwonago, WI, MSOE. Written test: May 4.

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.

CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic

MOBILE HYDRAULIC MECHANIC March 27-30, Fairfield, OH, CFC Industrial Training.

Written and JP test: March 31.

July 10-13, Fairfield, OH, CFC Industrial Training.

Written and JP test: July 14.

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/.

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 CFPMEC (In Development) Mobile Electronic Controls CFPIEC (In Development) Industrial Electronic Controls

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Online HS Review Training Course Launches in March

»

IFPS RECENTLY ANNOUNCED an online review training course for the hydraulic specialist certification.

IFPS often receives requests for instructor-led certification review training, and the HS course starting in March is the first one.

Tom Blansett, CFPAI, IFPS technical director, facilitates the 12-week virtual course to help candidates prepare for the HS certification test.

Classes take place Thursdays, 10 a.m. to 1 p.m.

[ET], beginning March 9. Registration is limited to 15 participants.

Throughout the program, Blansett explains each Outcome in the HS study manual. Animated hydraulic circuit schematics aid comprehension

and understanding. Students receive detailed explanations of the answers to Outcome review questions.

Publications recommended for the course are: • Hydraulic Specialist Study Manual • Fluid Power Reference Handbook • Fluid Power Math Handbook Students can receive a discount when bundling these resources. The cost for the training and the test is $829 for members and $1,320 for nonmembers. For training only, the cost is $500 for members and $725 for nonmembers.

For more information and to register, visit www.ifps.org/ifps-announces-instructor-ledcertification-review-training.

January 2023

19

VERTICAL I N T E G R AT I O N

ELECTRONIC LOAD SENSING FOR

HYDRAULIC PUMPS

By Neil Skoog, CFPS, Project Developer, ERHCO

L

T LS OUT

Note: RED Lines are output to valves.

BLUE lines are inputs from transducers

LS DRAIN

P1 CONTROLLER

COM

COM OUT0

IN0

OUT1

IN1

OUT2

IN2

OUT3 OUT4

IN3 IN4

OUT5

IN5

OUT6

IN6

OUT7 OUT8

IN7

OUT9 OUT10 OUT11 P

x x

OUT12 T LS OUT

OUT13 OUT14

LS DRAIN

OUT15 P2

TRADITIONAL LOAD SENSE

P

Note: RED Lines are output to valves.

T LS OUT LS IN

CONTROLLER

COM

COM OUT0

IN0

OUT1

IN1

OUT2

IN2

OUT3 OUT4

1-1IC2

IN3 IN4

OUT5

IN5

OUT6

IN6

OUT7 OUT8

1-1OC1

January 2023

P

1-1OC2

20

ELECTRONIC LOAD SENSE

1-1IC1

oad sense control of open circuit variable displacement piston pumps has contributed significantly to reducing energy consumption in hydraulic systems. This is especially true for mobile hydraulic systems that have widely varying load and speed requirements punctuated by periods of standby where no work is done.

The known benefit is that a pressure compensated variable displacement pump operates at a low standby pressure when no functions are active. When a function operates that requires less than full flow and pressure, the pump produces only the required flow at a pressure slightly higher than the actual load pressure.

Typical hydraulic courses have graphs showing the power savings when compared to a fixed displacement pump or a variable displacement pressure compensated pump operating at compensator pressure when the theoretical output load pressure and flow requirement is less than the pump capacity. These examples only show the potential energy savings when one pump controls one actuator. When one pump supplies multiple actuators operating at different pressure and flow requirements, any potential energy savings rarely matches the optimum value provided by the classroom example. Interconnecting multiple pumps to work together can also be challenging.

Load sense has become so widely accepted that many manufacturers have valves designed specifically for load sense applications. The valves have a series of internal shuttle valves to send the highest load pressure requirement to the load sense output port. The typical valve also has ports to “daisy chain” load sense signals from other valves, so the highest load pressure requirement supplies the load sense port on the pump. The valve at the end of the daisy chain bleeds off the load sense pressure when no valve is actuated.

IN7

OUT9 OUT10 OUT11 P

OUT12 T LS OUT x x

LS DRAIN

OUT13 OUT14 OUT15

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

There are several drawbacks to load sense control that make applying it challenging in some applications. The main issues relate to the load sense feedback line itself. You typically use a 1/4-inch (6-mm) or 3/8-inch (10-mm) diameter hose. In cold environments, the oil in the line can be highly viscous and fail to produce an adequate signal to pump. Also, on large machines with multiple valve locations over long distances, the time delay for the pressure signal to reach the pump load sense port results in sluggish reaction. If the load pressure changes increase and decrease too quickly, the pump overcompensates and causes instability. A common solution is to add a bleed orifice at the pump for a small continuous flow that keeps the fluid warm and less viscous.

The orifice also helps dampen pressure spikes, allowing the pump to respond in a more stable manner. This bleed orifice can require an increase to the load sense line to accommodate the associated pressure drop. Occasionally flow controls with a bypass check are added to the load sense circuit to stabilize the system. In extreme cases, accumulators are also utilized.

As electrohydraulic proportional directional control valves with related digital controllers become more popular, the possibility of using electronic load sensing also becomes more practical and offers other advantages.

While you can use electronic load sensing with manually operated valves, it may not offer some of the additional benefits.

Electronic load sense control is accomplished by replacing the load sense feedback line with pressure transducers at each valve. Instead of daisy chaining multiple valves together, each valve can have its own dedicated transducer.

Each transducer sends a signal to an electronic control module. The pump control changes from a load sense control, which requires a pressure signal to the load sense port, to a remote pressure control that sends a pressure signal to a remote relief valve. The remote relief valve then adjusts the compensator pressure to match the load pressure up to the main pump compensator setting.

The proportional pilot relief is controlled by the same electronic controller that is receiving the signal from the multiple pressure transducers. Simple systems with minimal outputs or manually operated valves may only require one controller for the entire machine. For complex systems requiring multiple transducer inputs, multiple proportional directional valves, and more than one pump control output, it may be more practical to use a dedicated controller for the load sense functions. The program evaluates the pressure transducer inputs, then outputs the highest pressure command to the pump pilot pressure control. Many remote proportional controls on the pump still have some form of a differential spring; or you can add a differential pressure to the control signal.

The first benefit of electronic load sense is the almost instant response of a pressure signal. Cold viscous oil, excessive line lengths, or the capacitance of the pilot line do not affect the signal.

Electronic load sensing can provide variable differential settings. The common load sense control on the pump has a fixed differential or standby pressure setting. It can be tuned during commissioning, but it is typically not adjusted after that. The nominal pressure can vary from 15 to 35 bar (220 to 500 psi) depending on the pump and valve requirements. When a bleed orifice is installed, the flow-pressure drop also affects the differential setting and pump response. The electronic load sense control responds not only to the pressure signal, it also provides a differential pressure that responds to the valves being commanded. In one application, a feed cylinder had to be limited in the retract force. In this case the cylinder was the only function active for that part of the cycle. Limiting the pilot pressure when that specific function was actuated to retract the cylinder limits the retract force. An added benefit was that the load sense pressure was also mapped to the retract command.

A slight command increases the pump pressure setting slightly; the higher the operator command, the more the proportional directional valve opened and the pump pilot pressure increased. This resulted in a unique feathering ability to retract the cylinder.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Another benefit is the ability to ramp or delay the load sense pressure command at the pump. One application has a high standby pressure, nominally 35 bar (500 psi). When a function actuates, the differential pressure gradually lowers to 15 bar (200 psi) over the load pressure. The result is fast response when the valve shifts, followed by reduced pressure drop across the valve when the function is operating and the flow is higher.

Fan applications using load sense pressure compensated pumps often result in oscillation that requires considerable tuning. The challenge is that the oscillation is related to the pressure spiking when accelerating the fan, then dropping because the pump compensates at the same time the fan motor begins turning, and the fan inertia keeps the motor spinning. This oscillation can be alleviated by ramping the control pressure up relative to the commanded fan speed instead of the pressure. Since fans have a characteristic speed-torque curve, it can be programmed into the control without too much difficulty.

Because electronic load sensing uses a remote pressure control on the pump, a sophisticated control that calculates the flow requirements based on the summing proportional valve command values and the load pressures also provides a form of power limiting.

If an application requires a failure mode to ensure the functions can still operate, an inverse proportional relief can be used for the pilot control. The inverse proportional relief operates at full pressure with no command and reduces pressure as the command increases. The default condition causes the pump to operate as a simple pressure compensated pump if the load sense control program experiences a failure, such as a broken wire or other damage.

Electronic load sensing offers control options that in the past were either impractical or impossible. By combining the faster processing speeds of modern controllers with added I/O capacity, electronic load sense control optimizes the differential pressure of a conventional load sense system. Electronic controllers can now integrate system pressure with flow requirements to provide power-limiting features for a specific application. •

HYDRAULIC NOISE, SHOCK AND VIBRATION SUPPRESSOR

QUALITY NACOL ACCUMULATORS • Forged shells, no welds • Long lasting, No Seam, Pleated Bladders • We stock 1/5 pint to 15 gallons in Chicago • Sizes available to 40 gallons

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January 2023

21

Line Drive Bucher Leans into the E-Mobility Market

By Michael Pyper for Bucher Hydraulics

An e-truck electrified with Bucher’s MOBILE platform.

A

bout a year ago, the Swiss group Bucher Industries acquired the Mobile Drives division of the Lenze group. Based in Romanshorn, Switzerland, the specialist in frequency inverters and DC/DC converters for commer- Modular system The inverters and DC/DC converters supply electrical auxiliary drives such cial vehicles has been integrated into Bucher Hydraulics, which already provides hydraulic drive expertise within the group. The company now as air compressors, pumps, or compressors. Combined devices also convert sees itself as being ideally equipped for the electric mobility of the future. the voltage of the traction battery into the 12 or 24 VDC voltage required for "The world needs to decarbonize to tackle climate change. That's why the vehicle's onboard electrical system. With a maximum input voltage of the future of mobility is electric," said Andreas Schnurrenberger, head of 848, units are already equipped for future 800 VDC fast-charging stations.

The modular principle makes it possible to meet vehicle manufacsales and product management for electrohydraulic systems and mobile drives. The acquisition of Mobile Drives and its integration into Bucher turers' individual requirements with customized software but largely standardized hardware. The compact, standardHydraulics has significantly strengthened the ized housings significantly increase the long-term division's position as a supplier and partner availability of spare parts and reduce their variety in the e-mobility market, benefiting manufacin production and customer service. turers of buses, trucks, and mobile machines.

"After all, e-buses have now been in service for The business acquired by Bucher Industries up to 20 years," Schnurrenberger said. is a pioneer in electromobility. Founded in In buses and trucks, every cubic centimeter of 1989 by a handful of idealists, some of whom installation space is at a premium. That is why the are still onboard today, it means that Bucher Typical auxiliary drives in a city bus. product portfolio includes double inverters that can Hydraulics now has unique expertise in the field of multi-inverters and DC/DC converters for electrically powered supply two actuators from just one housing, which saves on space and costs. commercial vehicles. As early as 1995, an electric traction drive with an integrated vehicle charger was developed. Over the years, project business ‘Powered by hydraulics’ The know-how acquired in the field of commercial vehicles can be in the bus and truck sector has resulted in important requirements for transferred to mobile machines. Here, too, electric drives with batteries the current platform, called MOBILE, which can implement a wide range or fuel cells are increasingly replacing fossil-fuel diesel engines. The work of drive solutions quickly and easily. Since 2014, Mobile Drives has been functions are still commonly powered by hydraulics, which combine supplying customers in the automotive industry with products tried and high forces with maximum ruggedness and low space requirements. As tested in large-scale production, together with ECE E1 approvals from a provider of innovative hydraulic drives, Bucher Hydraulics is developGermany's Federal Motor Transport Authority. ing electrohydraulic solutions to make mobile machines more efficient, A comparison with inverters from the industrial sector shows how quieter, and longer lasting.

This also results in solutions with enormous essential experience is, especially in the mobility sector. energy savings by means of recuperation.

"While such components fail after a very short time on test benches "The Mobile Drives business segment,” Schnurrenberger said, “is comthat simulate the environment, the Mobile Drives products easily withmitted to efficiently and reliably converting energy for electrically powered stand the specified load cycles," Schnurrenberger said, not least because vehicles such as e-buses, e-trucks, and mobile e-machines. We are therefore a new product has to fulfill several hundred qualification tests before it ideally positioned to deliver the drive solutions of the future." • goes into series production.

An air conditioning application.

22

January 2023

An air compressor application.

A steering application.

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Your Premier Provider of Quality NFPA Hydraulic & Pneumatic Cylinders!

More Than Starcyl Cylinders Corp 20 Ron Joye Rd, Hemingway South Carolina, 29554, USA www.Starcyl.com WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Starcyl Canada Inc. 2340 Michelin St., Laval Quebec, Canada H7L 5C3 www.Starcyl.ca

Of Quality

January 2023

23

SPECIAL AD SECTION

COMPONENT SHOWCASE CLIPPARD CORDIS ELECTRONIC PRESSURE CONTROLS Precise, linear pressure control within a closed-loop system with ultra high resolution and repeatability.

Clippard’s Cordis is a revolutionary microcontroller primed for escape velocity from a proportional control market. Built with the highest quality Clippard EVP and DVP proportional valves at its heart, the Cordis is designed to outperform the competition in every way. With unparalleled performance and flexibility not possible with current analog proportional controllers, the Cordis makes everything from calibration to sensor variety acceptance to future development opportunities more accessible and less complicated. The future of proportional pressure control has arrived, and it’s digital. Made in the USA.

For further information on the Cordis Pressure Controls or any of Clippard’s line of electronic and pneumatic valves, visit www.clippard.com.

Proudly made in the USA.

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SALES@EAGLE-HYDRAULIC.COM January 2023

25

SPECIAL AD SECTION

PRODUCT SPOTLIGHT NOVAPEAK 5000LT series

Hengst of North America, Inc See us in Las Vegas March 14 -18th at the IFPE show BOOTH #S84057 As of 2021 Hengst Filtration acquired former Rexroth Filtration product series, off­ering a complete range filtration products including high pressure and suction filters, high-quality elements and a variety of sensors, switches, and indicators. All with made in Germany quality and available now in our USA warehouse.

Call/email us for more information: sales-hydraulics@hengst.com

THE NEW GENERATION OF POWER NOW WITH A LOWER OPERATING TEMPERATURE The NovaPeak 5000LT series is a battery replacement that uses supercapacitor technology.

This product is specifically designed to supply maximum power for heavy user’s application such as liftgates, small dump bodies and dump trailers.

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.

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FluiDyne Fluid Power Stocks A4V Piston Pumps & Parts

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

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January 2023

Yates Industries (HQ) 586.778.7680 Yates Cylinders Alabama 256.351.8081 Yates Cylinders Georgia 678.355.2240 Yates Cylinders Ohio 513.217.6777

FluiDyne carries a complete line of A4V piston pumps that are available in displacement of: 40, 71, 125, 180, 250. Our units are used in many different applications: agriculture, forestry machinery, construction, on-highway, commercial vehicles, offshore, marine, wind/ocean energy, automotive and more.

Controls include: DR, DRG, FR, FRG, DFR, and LR2. They are available in SAE or metric. The versatile A4V units carry the industry leading 18 month warranty. Units are fully tested, documented and guaranteed to perform 100% to the original manufacturer’s specification.

Call, email, chat…we’re ready to help!

586.296.7200 • sales@fluidynefp.com www.fluidynefp.com

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SPECIAL AD SECTION

Ultra Clean Technologies Ultra Clean highlights the enhanced Air Knife technology used in our Clean Seal System. The Air Knife technology speeds up the capsule shrinking process, sealing out contamination in less than 1 second. A 110mm opening allows single or multiple hose or tube assemblies to be sealed in one pass.

Contact us: sales@ultracleantech. com or call 800-791-9111.

Website: www.ultracleantech.com

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

Inserta® Products Custom Modular Connectors | Have It Your Way! Inserta® Modular Connectors can be made with customer specified porting. A combination of ports including SAE J518, SAE J1926, and NPTF (up to 2”), in different sizes, may be specified on the same connector. This can result in a real savings in labor, space, connections, adapters, and leak points, and contribute to a smartly designed system. These are ideally used with Inserta® Flange Type Ball Valves and Check Valves.

An inquiry form is now available on our website, upon which the desired port on each Modular Connector face can be indicated, and the form submitted for quotation. Quantities as low as one are available. Small to medium quantities typically ship within one week, or sooner if required.

Inserta® Products Blue Bell, Pennsylvania USA www.inserta.com

Protection for All Things Hydraulic, Pneumatic and Fluid Power

Don’t Compromise – that hydraulic flange you want maybe at MAIN MAIN stocks 10,000+ hydraulic flanges and manufactures components in 4-7 days in the USA. SAE J518 Code 61 and J518 Code 62, JIS, DIN, ISO 6162, ISO 6164, and specials with socket-weld, butt-weld, ORB, BSPP, etc.; all geometries, flange heads, flange adapters; in carbon, stainless, cupro-nickel, ductile, aluminum, etc. Sixty years’ experience plus SAE and ISO technical committee experience.

MAIN Manufacturing Products, Inc. 800.521.7918 https://mainmanufacturing.com/block-categories WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

MOCAP manufactures an extensive range of protective closures to guard pipes, hoses, and hydraulic fittings from dirt, moisture, and damage to help maintain equipment reliability. Included are a variety of sizes and styles of Threaded and Non-Threaded plastic Caps and Plugs for Metric, NPT, BSP, JIC and SAE Threaded Connections, Ports and Fittings. These are in addition to MOCAP’s already extensive lines of low-cost Caps, Plugs, Grips, Netting, Tubing and Tapes for general Product Protection, Finishing and Masking.

All of our stocked items are ready for immediate shipment and available in Box, Mini-Pack and Micro-Pack quantities. Free Samples are always available for testing purposes.

sales@mocap.com www.mocap.com

January 2023

27

SPECIAL AD SECTION

Fluid Gear Products, Inc With over a decade of reliable and efficient products and services, 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.

Sales@fluidgearproducts.com Ph. 610-200-6045 www.fluidgearproducts.com

Heavy Duty Multi-Stages Air Cylinders Hydraulic Noise and Shock Suppressor

Suppressor

Accumulators

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

M3 series-Heavy Duty Multi-Stage Air Cylinders, 3.25” Bore to 10” Bore, strokes 1/4” to 8”.

All NFPA mountings available, even the ME5 rectangular head mount. These cylinders have a High Flow design, which allows a fast cycle rate. Using multiple pistons in the extend stroke to increase force in a small foot print. They also save air consumption on every cycle by retracting with a single piston. All seal are heavy duty special Urethane, we also offer bumper seals in this special Urethane. Custom designs can be done on request.

Call sales at 1-877-STARCYL (782-7295) or at www.starcyl.com

BRANHAM CALIPER DISC BRAKES STOP. HOLD. MAINTAIN TENSION

Industrial and Off/Highway uses. From a liile as 600 to over 150,000-inch pounds of braking torque. Over 2000 models and Made in the U.S.A. for over 40 years.

Hardcoat. Electro-Nickel. Stainless Steel Many Service Types Pneumatic | Hydraulic | Mechanical Pneumatic Spring Applied Hydraulic Spring Applied

Brake Discs & Disc/Hub Assemblies

6-5/16 to 16” Dia. Discs Large Selection of Fixed and QD Hubs w/Bushings

We at Branham Listen, Let Us Help You Today!

715.426.2000 AskWCB@WCBranham.com www.WCBranham.com

Helical Hydraulic Rotary Actuators Young Powertech, Italian made Helical Hydraulic Rotary Actuators cover a wide range from 45 to 40,000 LB-FT torque and up to 750 degrees rotation for mobile and industrial applications. Local inventory for quick delivery and service and worldwide support makes it the best option for your rotating applications.

3060 Plaza Dr. #108 Garnet Valley, PA 19060 Telephone: 610-558-0760 Email: info@youngpowertech.com www.youngpowertech.com delivers solutions

28

January 2023

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

N F PA U P D AT E

Fluid Power Shipments Grew in October Some fluid power segments saw growth in October, according to recent numbers from the National Fluid Power Association.

Raw index data shows that in October, when compared to September, pneumatic and mobile hydraulic shipments increased while industrial hydraulic shipments decreased. The year-to-date percent change for total fluid power shipments in October was 17.5%, up from 17.2% in September. The 12-month moving average of shipments for pneumatics, hydraulics, and total fluid power continues growing. The data is drawn from NFPA’s Confidential Shipment Statistics (CSS) program.

Hydraulic and Pneumatic Shipments Raw Index Data, Index: 2018=100

SHIPMENTS MONTH

TOTAL FLUID POWER

TOTAL HYD.

TOTAL PNEU.

Aug 2022

16.4

19.0

8.1

Sep 2022

17.2

19.9

8.1

Oct 2022*

17.5

20.4

8.5

*Preliminary data subject to revision.

Shipments – Cumulative year‐to‐ date % change (2022 vs. 2021) This graph of raw index data is generated by the total dollar volume reported to NFPA by CSS participants and compared to the average monthly dollar volume in 2018. For example, the October 2022 total dollar volume for pneumatic shipments is 114.4% of the average monthly dollar volume in 2018. (Base Year 2018 = 100)

The table above is expressed in terms of cumulative percent changes. These changes refer to the percent difference between the relevant cumulative total for 2022 and the total for the same months in 2021. For example, October 2022 pneumatic shipments figure of 8.5 means that for the calendar year through October 2022, pneumatic shipments increased 8.5% compared to the same time-period in 2021.

Pneumatic, Mobile, and Industrial Hydraulic Orders 12/12 Ratio Each point on this graph represents the most recent 12 months of orders compared to the previous 12 months of orders. Each point can be read as a percentage. For example, 120.3 (the October 2022 level of the industrial hydraulic series) indicates that industrial hydraulic orders received from November 2021 to October 2022 were 120.3% of the orders received from November 2020 to October 2021. (Base Year 2018 = 100)

Total - Hydraulic and Pneumatic Shipments 12 Month Moving Average

This graph of 12-month moving averages shows that in October 2022, total fluid power, total pneumatic, and total hydraulic all increased.

(Base Year 2018 = 100)

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

January 2023

29

Don’t compromise!

Hydraulic Live Swivels Inline & 90°

Use MAIN Manufacturing Products, Inc. as your source for hydraulic flanges Dependable - 60 yrs service

MAIN Manufacturing Products, Inc.

SAE 4-bolt, JIS, DIN, ISO standard & special adapters

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Materials: Carbon, 304L, 316L, duplex, Cu-NI, ductile, alum. etc.

Air Compressors

Clean Dry Air Improves Performance...

Clean, Dry Compressed Air Starts with The Extractor/Dryer® Manufactured by LA-MAn Corporation • Point of Use Compressed Air Filter to Improve and Extend Equipment Life • Removes Moisture and Contaminates to a 5-Micron Rating: Lower Micron Ratings are Available

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1-763-784-5531 www.SuperSwivels.com 30

January 2023

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SPECIAL AD SECTION

CLASSIFIEDS

APPLICATION ENGINEERFLUID POWER

IN STOCK FROM 25MM TO 80MM MANY COVERS IN STOCK • Pressure, Flow, Directional • Large Flow 90° Valves

almomanifold.com

• Single DIN blocks • Active Valves • Monitored Poppets

Phone: 989.984.0800 Toll Free: 1.877.ALMO. NOW Fax: 989.984.0830

HYDRAULIC FLANGES and COMPONENTS THE “SPECIAL” YOU WANT IS PROBABLY ON OUR SHELVES MAIN Mfg. Products, Inc. 800.521.7918 fax 810.953.1385 www.MAINMFG.com/fpj

WANTED SURPLUS

A full time position is available for a Fluid Power Application Engineer at Fluid Power, Inc. Positional responsibilities include design, development, and testing of hydraulic and pneumatic systems, component research and selection, 3D modeling, and proposal generation. Customer interaction required.

This is a stimulating position that allows the successful candidate to participate in interesting projects involving a global customer base, across a variety of industries and applications.

There is also an opportunity to participate in the design, development, and application of the company’s own proprietary components, in addition to application of third party components.

HIGH FLOW PROPORTIONAL FLOW CONTROL • 16MM to 50mm • Standard ISO 7368 and DIN 24342 cavity • High performance 5,000 psi • On board amplifier • 0-10 volt command

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Positional requirements include a four year technical or engineering degree (mechanical engineering preferred), at least 2 years of hydraulic experience, knowledge of fluid power schematics and components, fundamental mechanical engineering knowledge including design theory and practice, superior analytical and problem solving capacity, business acumen, and strong organizational skills.

Qualified applicants are encouraged to contact hr@fluidpowerinc.com, or to call 215.643.0350.

Pumps · Motors · Valves · Servo/Proportional

The correct answers to Test Your Skills on page 8 are 1-d and 2-b.

Email, call or fax with a list of your Surplus.

We’ll provide you with a price offer!

1-800-422-4279 | 586-949-4240 Fax: 586-949-5302 | surplus@hydraulex.com

Here is the solution to Figure It Out on page 5.

A DV E RT I S E R I N D E X

Company.........................Page........................................ Web Adaconn + Inserta.............4, 27................................ inserta.com AEM-IFPE............................. IFC.......................................ifpe.com Almo Manifold.....................31......................almomanifold.com Clippard..............................25, 31............................ clippard.com Delta Motion..........................8..........................deltamotion.com Eagle Hydraulic.................25, 26................eagle-hydraulic.com Fluid Gear Products............28...............fluidgearproducts.com Fluid Power Inc....................31...................... fluidpowerinc.com Fluidyne Fluid Power .....3, 26, 31........................fluidynefp.com Hallite Seals International Ltd...................16....................................hallite.com Hengst of North America, Inc...........17, 26.............................. hengst.com Hydraulex...........................11, 31......................... hydraulex.com J/T Hydraulics& Service Co.27.......................... jthydraulics.com WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Company.........................Page........................................ Web La-Man Corp........................30................................... laman.com Main Manufacturing Products.........................27, 30, 31....................... mainmfg.com MOCAP Inc...........................27..................................mocap.com National Tube Supply........ OBC...........nationaltubesupply.com Parker Hannifin Corp...........13..........parker.com/electrification Renco Inc..............................16......................rencocontrols.com Starcyl Cylinders Corp.....23, 28...............................starcyl.com Super Swivels.......................30....................... superswivels.com Ultra Clean Technologies.....................24, 27................. ultracleantech.com W.C. Branham Inc..............9, 28....................... wcbranham.com Wilkes & McLean Ltd.......21, 28........... wilkesandmclean.com Yates Cylinders, Inc...........1, 26..............................yatesind.com Young Powertech, Inc......28, 33.............youngpowertech.com

It appears someone upgraded the system to increase the open and close speeds of the cylinders and used a pressure-compensated pump with the blocked system. The directional valves leaked, allowing the actuator ports to build up to half of system pressures for motors. With cylinders having a 2:1 area ratio, the cap force is larger than the rod side and, depending on the seal friction, can drift out in the neutral position.

We changed the spools to connect A to T, with P and B block. Now the cylinder would tend to drift retracting.

January 2023

31

SUBSCRIBE BY MAIL FILL OUT THIS CARD COMPLETELY, DETACH, AND MAIL OR FAX IT TO START YOUR SUBSCRIPTION MAIL TO: PO BOX 2548 • ORLANDO, FL 32802-9830 • FAX: 1-866-207-1450 YOU CAN ALSO SUBSCRIBE ONLINE AT WWW.FLUIDPOWERJOURNAL.COM. 01  YES! Please start/continue my complimentary subscription to the Fluid Power Journal Signature (required)

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 Check here if you would like to keep your name, address, phone and fax numbers confidential, and not released to third parties The address above is my:  Home Address  Business Address Which edition would you like to receive?  Print  Digital  Both (View a sample of our PAPERLESS digital edition at www.fluidpowerjournal.com) 1. Do you specify, select or influence the purchase of components & systems, on new or existing machinery?

If yes, which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 07  Vacuum 08  Electronic Controls

03  Yes

04  No.

09  None of These

2. What is your primary job title? (check only one) 10  Administration: Chairman, President, V.P., Secretary, Treasury, General Manager, Owner, Business Manager, Director, etc.

11  Plant Operations: VP of Manufacturing/ Operation/ Production, Plant Management/ Director/ Manager/ Supervisor/ Superintendent/ Foreman/ Safety Director, etc.

12  Engineering: V.P. Eng., Eng., Design Eng., Director of Eng., Staff Specialist, Chief Eng., Senior Eng., Maintenance/Production Eng., etc.

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

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

15  Purchasing: VP/Director of Purch., Procurement Manager, Buyer, Purch., etc.

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

A  1-19 B  20-49 C  50-99

D  100-249

E  250-499

F  500-999

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

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

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

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

I  Forestry I  Simulators & Test Equipment J  Furnaces J  Snow Vehicles, Ski Lifts K  Gas & Oilfield Machinery K  Steel Plants & Rolling Mills L  Heavy Construction & Equip.

L  Truck & Bus Industry M  Military Vehicles M  Textile Machinery N  Construction & Utility Equip.

N  Woodworking Machines O  Machine Tools O  Other (specify)_____________ P  Government Related P  Fluid Power Industry

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