Fluid Power Journal August 2022

AUGUST 2022

HOW PNEUMATICS PROTECTS OUR FOOD

fluidpowerjournal.com

PROVIDING POWER ON DEMAND

S E P O L S Y R E P P I L S s l l i H y o r u d r o C e h t d n a s r e m o o r Snow G Figure It Out Innovative Designs & Publishing • 3245 Freemansburg Avenue • Palmer, PA 18045-7118

Executive Profile P. 10

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From sensor technology and data analytics to robotics and automation, you’ll see all of the latest innovations in fluid power, all in one place.

Even better, you’ll have many opportunities for in-depth technical conversations with other engineers to spark new ideas, and you’ll be able to talk with suppliers about your specific challenges and the solutions they offer. Bring your question—and leave with smart new solutions to solve your most pressing technical problems.

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INTERNATIONAL FLUID POWER EXPO MARCH 14-18, 2023 LAS VEGAS, NV, USA

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AUGUST 2022

1

IN THIS ISSUE

AUGUST 2022

VOLUME 29 • ISSUE 8

18

Features 6 Cover Story Slippery Slopes: Snow Groomers and the Corduroy Hills PRINOTH machines create trails for skiing all over the world.

18 One for the Road: Providing Power on Demand Bucher Hydraulics’ Smart PowerPacks supply precise flow and pressure.

6

24 Test Your Skills The Application of Fluids 26 On the Safe Side: How Pneumatics Protects Our Food Pneumatic technologies play a part in the supply chain that puts food on the family table.

26 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.

Departments

4

Notable Words

9

NFPA Update

10

IFPS Update

17

Web Marketplace

21

Figure It Out

22

Product Spotlight

23

Product Review

31

Classifieds

SERVICE THROUGHOUT THE AMERICAS • FAST AND FRIENDLY RESPONSE • B2B PORTAL FOR PARTNERSTM

HITACHI FLANGELOCK AND CAP KITS AVAILABLE • LARGE, IN-STOCK

FOOD GRADE HOSE

Part number

WASHDOWN HOSE

INVENTORY FOR THE FOOD PRODUCTION INDUSTRIES

Part description

Applicable machines

TM

SWINGFLGLCK2062

Swing hose FlangeLock kit

EX3600, EX5600, EX8000

SWINGCAP2062

Swing circuit cap kit

EX3600, EX5600, EX8000

TM

Number of parts

Weight (kg) TM

16 x 2062U - red FlangeLock 16 x 2062 - cap

6.7 4.5

TM

TRAVELFLGLCK2462

Travel hose FlangeLock kit

EX3600, EX5600, EX8000

TRAVELCAP2462

Travel circuit cap kit

EX3600, EX5600, EX8000

16 x 2462 - cap

6.4

FRONTATTFLGLCK326162

Front attachment FlangeLockTM kit

EX3600, EX5600, EX8000

14 x 3262U - black FlangeLockTM 4 x 3261U - black & silver FlangeLockTM

8.9

EX3600, EX5600, EX8000

14 x 3262 - cap 4 x 3261 - cap

9.5

ACCESSORIES 20 x 3262U - black FlangeLockTM

9.9

20 x 3262 - cap

11.3

FRONTATTCAP326162

Front attachment cap kit

hose COUPLINGS Boom arch TM BOOMARCHFLGLCK3262 FlangeLock kit

CRIMPERS EX3600, EX5600, EX8000

BOOMARCHCAP3262 Boom hose cap kit EX3600, EX5600, EX8000 WWW.JASONINDUSTRIAL.COM | arch +1.630.752.0600

16 x 2462U - purple FlangeLock

7.7

Member of AMMEGA Group. ammega.com | ©2022 Jason Industrial. All rights reserved.

CONTAMINATION CONTROL

Routine and scheduled maintenance of hydraulic systems are vital to getting the most out of your Hitachi Mining Excavator. While maintenance plays the largest role in the prevention of unnecessary machine downtime, it can also expose the hydraulic system to high levels of contamination rapidly decreasing component longevity. The importance of contamination control is sometimes overlooked when performing maintenance due to incorrect practices being used.

CO U T CO NTA LTIM HE NT M A RO INA TE L T TI OO ON L

Stop the Mess

THE FLANGELOCK™ TOOL AND CIRCUIT BLANKING CAPS

The FlangeLock™ tool and caps are the ultimate contamination control tools for protecting your hydraulic system. The FlangeLock™ allows for the simple sealing of open hydraulic flanges without tools while the caps can be bolted in place of a flange connection.

Easy on, easy off, they offer a leak-proof solution to hydraulic systems and environmental cleanliness. FlangeLock™ tools and caps stop the mess.

The FlangeLock™ Tool is the ultimate contamination control tool for protecting HITACHI MAKING systems.

CONTAMINATION CONTROL EASY sealing of open SAE code 61, 62 your hydraulic It allows for the simple Hitachi have packaged FlangeLock™ tool and caps specifically for Hitachi mining excavators. The Hitachi customised & CAT-Style hydraulic flanges without tools.

Constructed from lightweight aluminum. kits make sure no matter which component routine maintenance is being performed on, you will always have the exact Easyofon, easy off.™*Offers to hydraulic system and environmental and capsatoleakproof help reducesolution contamination. number FlangeLocks cleanliness. FlangeLock™ Tools stop the mess! ™ *Note: FlangeLocks are not to be used under pressure

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• No more rags stuffed into hoses • Quick installation & ease of usage

This product is Patented, other Patents pending.

For more information, call (203) 861-9400 or email sales@flangelock.com. www.flangelock.com WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2022

3

N O TA B L E W O R D S

Failure Is Not an Option? Really?

By Scott Sardina, PE, CFPS, CFPAI, CFPECS, President, Waterclock Engineering

If things are not failing, you are not innovating enough.

—Elon Musk

»

AT SOME POINT in our career, we have all heard: “It has to work right the first time.” In the age of finite element analysis, computational fluid dynamics, and multi-physics simulations, some have forgotten that not every solution in engineering is closed form. We do not have everything figured out. It may not always work right the first time, and that is okay.

When I was in graduate school for engineering, my favorite courses were the experimental ones. That was where I learned that the professors do not always have the answer. There were certain mathematical derivations or experiments currently in progress, but it was not proven . . . yet. This is where innovation and exciting engineering happens.

It is normal in the fluid power industry to request a custom system and expect it to work flawlessly the first time. Often, these systems incorporate components that have already been proven to help reduce the number of unknowns. Still, there are many new system and component requirements that no one has done before. You must figure it out. Many will shy away from this type of engineering while others thrive on it. An engineer could sit all day running analysis and simulations but still not catch everything before the building phase or installation. Is this failure or innovation?

“Garbage in, garbage out” is a popular saying in the world of analysis and simulation. As engineers become more reliant on software and programs to do their calculations, it is something to always be thinking about: double and triple checking each calculation; running a simple analysis

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AUGUST 2022

you can check by hand before making it more complex. Without keeping this discipline, you could easily create a problem that didn’t previously exist or end up solving the wrong problem. A common trap is to optimize a solution for the wrong thing.

After all the calculations and analysis, the solution to the right problem could still be wrong and cause failure in real life. Many engineers at this point could decide to put a large safety factor on it and call it a day. That is certainly one way to do it, but you will not learn much from that. This does not tell you the limit of the design. There are certain factors that are not realistic to simulate. Real-world testing is the next validation step in the design process.

Some failure and design iterations will be caught during initial testing. Other design changes may need to happen after years of being in the field.

What is my point? It’s that advancement in the design was driven by failure, not by being “perfect” the first time. That is how we grow as engineers and designers.

My purpose here is not ill will or to wish failure on anyone. Quite the opposite. For us to keep innovating and pushing the envelope, we must experience failure. The key is to learn from it and overcome it. That can be extremely difficult as an engineer; our job is often to give the correct answer, not an iterative response.

I started Waterclock Engineering six years ago with the idea of innovating and working on complex systems. We develop systems and components that cannot easily be calculated because of the function, materials being used, or application. We have experienced failures, but we’ve learned from them, and eventually overcame them, allowing us to develop exciting things for our customers.

I encourage you to jump off the cliff and allow failure. It will help you open up to learn and develop new things. Whether you want to create the next life-changing product or learn more about a current design, push the limits, and get comfortable with the unknown. •

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Mobile - Portable

Paul and Lisa Prass Bob McKinney Michael Degan Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC - CFPSOS LLC Erica Montes Kristy O'Brien Donna Bachman, Sarah Varano Andrea Karges

INTERNATIONAL FLUID POWER SOCIETY 1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 • Fax: 856-424-9248 Email: AskUs@ifps.org • Web: www.ifps.org 2020 BOARD OF DIRECTORS President: Denis Poirier Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCC Danfoss Power Solutions Immediate Past President: Rocky Phoenix, CFPMMH Open Loop Energy First Vice President: Scott Sardina, PE, CFPAI, CFPHS, CFPECS - Waterclock Engineering Treasurer: Jeff Hodges, CFPAI/AJPP, CFPMHM - Altec Industries Vice President Certification: James O’Halek, CFPAI/AJPP, CFPMIP, CMPMM - The Boeing Company Vice President Marketing: Chauntelle Baughman, CFPHSOneHydraulics Vice President Education: Randy Bobbitt, CFPAI, CFPHS Danfoss Power Solutions Vice President Membership: Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM - Open Loop Energy

MOBILE

•

PORTABLE

• Hydrostatic Pressure Testing • Bolt Tensioning & Nut Torquing • Chemical Injection • Charging of N2 Accumulators • Leak Testing • Fluid Measuring Systems

• Clamping • Valve Actuation • Calibration • Gas Transfer • Coolant Injection

Hy

Founders: Associate Publisher: Editor: Technical Editor:

Director of Creative Services: Account Executive: Accounting: Circulation Manager:

HII

HY drauli c DR AU s Inter LIC n S o ationa l, I r PN EU nc.

MA TIC S

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

EXPERTS IN HIGH PRESSURE TESTING

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Made in the USA

DIRECTORS-AT-LARGE Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHT - Altec Industries Steve Bogush, CFPAI/AJPP, CFPHS, CFPIHM - Poclain Hydraulics Cary Boozer, PE, CFPE - Motion Industries Lisa DeBenedetto, CFPS - GS Global Resources Daniel Fernandes, CFPECS, CFPS - Sun Hydraulics Brian Kenoyer, CFPHS - CemenTech Jon Rhodes, CFPAI, CFPS, CFPECS - CFC Industrial Training Mohaned Shahin, CFPS - Parker Hannifin Randy Smith, CFPHS - Northrop Grumman Ethan Stuart, CFPS, CFPECS - Wainbee Limited Brian Wheeler, CFPAI/AJPP, CFPMM, CFPMIP The Boeing Company HONORARY DIRECTORS-AT-LARGE AND EX OFFICIO Donna Pollander, ACA Paul Prass, Fluid Power Journal Liz Rehfus, CFPE, CFPS Robert Sheaf, CFPAI/AJPP - CFC Industrial Training IFPS STAFF Executive Director: Donna Pollander, ACA Technical Director: Thomas Blansett, CFPS, CFPAI Certification Logistics Manager: Kyle Pollander Layout/Graphics Designer: Chalie Clair Assistant Director: Jenna Mort Bookkeeper: Diane McMahon Administrative Assistant: Beth Borodziuk 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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AUGUST 2022

5

COVER STORY

SLIPPERY SLOPES Snow Groomers and the Corduroy Hills

By Mauro Mezzina, Global Sales and Application Leader, Industrial Division, Danfoss Power Solutions 6

AUGUST 2022

P

roviding optimum conditions for snow sports requires a delicate balance of art and science. Snow groomers play a key role.

Known for the distinctive corduroy-style pattern they leave behind, PRINOTH snow groomers create and maintain trails with smooth, compact snow for recreational and competitive uses at ski areas and resorts all over the world.

PRINOTH, headquartered in Sterzing, Italy, is one of the leading manufacturers of snow groomers. The company also produces tracked utility vehicles and vegetation management machinery.

Snow groomers are equipped with hydraulically operated blades, powered rotary tillers, and special attachments for shaping features such as half-pipes. The front blade plows and levels the snow, while the rear tiller breaks up and mixes layers to create snow with a good grip and even consistency. Finally, a large comb, or smoother, is pulled along the surface to create the final finish.

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With large steel and rubber tracks that disperse the vehicle’s weight and keep the center of gravity low, these machines traverse all kinds of terrain. However, for particularly steep slopes, specialty machines outfitted with a winch and long cable anchored to the slope are required.

The challenges Snow grooming is not an easy task. The crews piloting the vehicles work in extreme conditions: snow, ice, steep slopes, and freezing temperatures. They often work at night after the ski area closes, racing against the clock to groom each trail before the facility opens again in the morning.

Operators need efficient and technologically advanced equipment to get the job done as quickly as possible while keeping fuel costs in check.

For the operator, the “feel” of the machine is of the utmost importance. Operators need to have control in these conditions. They need the equipment to handle well and respond quickly to their inputs. Operators must constantly manage the machine speed and down-acting pressure of the implements.

PRINOTH also faced several machine-level challenges. An issue that many original equipment manufacturers face in working with electrohydraulic components is the complexity of wiring. There are limited digital electrohydraulic component options on the market today, from pumps to valves and beyond.

Another challenge resulted from the changing architecture of PRINOTH’s machines to meet Stage V emissions standards in the European Union. As smaller, lighter weight components were introduced, working pressures in some areas of the machine increased, particularly the hydrostatic transmission. PRINOTH needed hydraulic hoses for the high-pressure circuit and hydrostatic drive lines capable of operating at working pressures of 420 bar (6,092 psi).

The final challenge was a cavitation issue with the incumbent supplier’s hydraulic pump. If not corrected, cavitation can lead to premature pump failure, rendering the hydraulic work circuit inoperable.

The solutions PRINOTH turned to Eaton Hydraulics, now part of Danfoss Power Solutions, to help solve these challenges. For a number of years, the company’s CMA advanced mobile valve has enabled several key technologies on PRINOTH’s top-of-the-line LEITWOLF machine. It has also markedly improved response time, contributing to improved operator experience and efficiency gains, while simplifying wiring through CAN communication.

The CMA advanced mobile valve is an electrohydraulic mobile valve that improves machine performance and operator productivity. Featuring onboard electronics and sophisticated software algorithms, the CMA valve provides flexible configuration, immediate communication, WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

The CMA/CMT valve on the PRINOTH LEITWOLF snow groomer.

and precise control. CMA valve sections feature independent metering, which uses two spools to control the supply and return flow for a single bidirectional actuator. Electronic independent metering of port flow provides infinite control flexibility.

The CMA section is capable of controlling both flow and pressure simultaneously on a service. By combining operator input with sensor data and logic, the valve can shift on the fly from pressure to flow control, a function that is nearly impossible with traditional systems. This removes the burden from the operator and results in smoother, more consistent snow.

The CMA valve has delivered a remarkable improvement in response time. Where older systems had a typical response time of 1.1 seconds, systems using the CMA valve can deliver response times as low as 0.15 seconds. The valve’s flow accuracy and high dynamic control enable this quick response and precision. For the operator, this results in a nearinstantaneous response to input commands, which enables precise control on the slopes and a smooth driving experience.

Additional technologies on the LEITWOLF machine enabled by the CMA valve include parametric joystick control, blade shake and float control, and automatic pressure control.

The CMA valve communicates via CAN, which helps simplify wiring throughout the machine. CAN communication requires only four wires per valve bank, instead of four wires per valve section with analog wiring.

This results in time and cost savings in development and manufacturing. It reduces components such as wire bundles and harnesses, while dramatically shortening assembly labor time. In addition, reducing hosing and harnesses gives an advantage in regards to snow and ice accumulation.

To address the pump cavitation issue, PRINOTH again turned to Eaton Hydraulics, which sent an application engineer to PRINOTH’s Sterzing facility to design the right setup. Working on an actual machine, the engineer spent time determining which pump, porting, and routing would resolve the issue. The 420 open-circuit piston pump was selected as the go-forward component for the LEITWOLF machine.

To meet the high-pressure requirements for the circuit and hydrostatic drive lines, Eaton Hydraulics proposed its EC850 spiral hose assemblies.

The EC850 hose is qualified to 500 bar (7,252 psi), high enough to meet the system’s working pressure of 420 bar (6,092 psi). As was the case for the pump, an application engineer spent time working on a LEITWOLF machine at PRINOTH’s facility to define and design the best routing for the hose.

(Continued on page 8) AUGUST 2022

7

(Continued from page 7)

CMA valves, X20 pumps, and EC850 hose assemblies have been in use on PRINOTH’s LEITWOLF snow groomers since 2015. Particularly pleased with the CMA valve’s responsiveness and control, PRINOTH was interested in bringing the technology to its midrange BISON snow groomer. It asked Eaton Hydraulics to propose a solution that would reduce the valve’s cost while still allowing use of CMA sections on functions where it provides value.

Eaton Hydraulics’ engineering team developed several options, including a multivalve solution and a new concept for the CMA valve, which it named CMT and presented to PRINOTH. CMT would be a stackable section option for the CMA valve. Instead of independent metering, the CMT section would use the twin-spool architecture to independently control two separate machine functions; CMT would provide meter-in flow control only. Like CMA sections, CMT sections would be software configurable and feature CAN communication, onboard sensors, digital flow sharing, and electronic load sensing to provide precise flow control and high responsiveness.

By controlling two machine services from one section, instead of the one service that’s typical of sectional valves, CMT would reduce the total number of sections needed in a valve bank by as much as 50%, minimizing valve bank size, weight, and cost. The CMT section’s greatest advantage, however, would be enabling original equipment manufacturers like PRINOTH to tailor the high-tech CMA valve for all vehicle requirements. CMA sections could be used for services that demand superior precision and control, while streamlined CMT sections could be used for standard machine functions. The availability of two stackable section options would enable PRINOTH to reduce overall system cost without sacrificing performance.

CMT was not the lowest cost option, but PRINOTH engineers liked the single valve communication portal and simple wiring that comes with CMA's digital communication. Eaton’s engineering team started designing CMT in 2016, and PRINOTH tested early prototypes on a handful of machines, operating them on ski slopes for a season.

Throughout the development process, the team iterated on several design aspects, and spool geometry was one of the biggest. The performance and behavior of the valve depends on the design of the spool and how the notches are cut and sized. Digital flow sharing at the spool level was one of the key technical innovations involved in the development of CMT. To function correctly with CMA sections, CMT sections required software-configurable flow sharing. But since CMT sections contain two spools that control separate machine functions, flow sharing was required on each individual spool rather than the section.

With a tested and proven design in hand, PRINOTH replaced the load-sensing valves it had been using on its BISON model with CMA/ CMT valve banks, and production began in 2018.

The outcome Today, 100% of the valves used on PRINOTH’s LEITWOLF and BISON models are CMA/CMT valves, now part of the Danfoss Power Solutions product portfolio. There are three valve banks on each machine – a front bank, rear bank, and tiller bank – which are each a combination of CMA sections and CMT sections.

PRINOTH cites several advantages in using the CMA/CMT valve. The simplified wiring, with the entire machine connected with the CMA system on the CAN network, has been a considerable one. The use of CMT sections, with their ability to control two machine functions, has enabled PRINOTH to reduce the total number of valve sections on the machine by 30%, from 13 to 9. The company has also been able to remove several external manifolds because many auxiliary valve functions are integrated into the CMA valve. This has reduced the number of components on the machine and also improved accuracy.

Feel for the operator has also improved; PRINOTH has extended it as a benefit into the midrange BISON model. This is one of the greatest technical contributions of the valve, according to operator feedback.

“It feels like an extension of my hand,” one operator told an Eaton Hydraulics engineer. While not a directly quantifiable factor, feel contributes to a better driving experience. Better control and handling enable the operator to complete the job in less time, resulting in lower fuel consumption, an important measure for snow groomers.

PRINOTH is investing in zero-emissions vehicles. In 2020, the company introduced two concept vehicles, including the LEITWOLF h2Motion, the first hydrogen-operated snow groomer in the world. With a hydrogen fuel cell drive and electric motor, the machine features power output of 400 kW/544 HP and a runtime of up to four hours. Included on the machine are CMA/T valves, X20 pumps, and EC850 hoses. The other concept vehicle introduced was the electric-powered HUSKY eMotion, with motor power of 200 kW/270 HP and runtime of up to three hours.

PRINOTH is investigating additional electrification opportunities, including its other snow groomer models. With a strategic focus on electrification, Danfoss Power Solutions is well positioned to carry on the Eaton Hydraulics legacy of partnership and innovation with PRINOTH. •

The CMA/CMT valve.

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AUGUST 2022

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N F PA U P D AT E

Fluid Power Shipments Grew in May The latest data from the National Fluid Power Association shows in raw index data that pneumatic, mobile hydraulic, and industrial hydraulic shipments all increased in May when compared to April. The 12-month moving average of shipments for pneumatic, hydraulic, and total fluid power has been growing since February 2021. The year-to-date percent change for total fluid power shipments in May is 14.9%. The charts below are drawn from NFPA’s Confidential Shipment Statistics (CSS) program.

Hydraulic and Pneumatic Shipments

SHIPMENTS

Raw Index Data, Index: 2018=100

MONTH

TOTAL FLUID POWER

TOTAL HYD.

TOTAL PNEU.

Mar. 2022

15.0

15.8

9.3

Apr. 2022

13.7

15.5

8.0

May 2022*

14.9

17.0

8.4

*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 May 2022 total dollar volume for pneumatic shipments is 112.2% 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, May 2022 pneumatic shipments figure of 8.4 means that for the calendar year through May 2022, pneumatic shipments increased 8.4% 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, 135.3 (the May 2022 level of the industrial hydraulic series) indicates that industrial hydraulic orders received from June 2021 to May 2022 were 135.3% of the orders received from June 2020 to May 2021. (Base Year 2018 = 100)

Total ‐ Hydraulic and Pneumatic Shipments 12 Month Moving Average

This graph of 12-month moving averages shows that in May 2022, the moving averages for shipments continued to increase across the board.

(Base Year 2018 = 100)

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AUGUST 2022

9

I F P S U P D AT E

Executive Profile

Certification Empowers Opportunity.

Q. Why did you pursue certification, and how has it helped your career?

A. I became certified as a fluid power specialist in 1994 to differentiate

myself from my peers. Receiving and maintaining my certifications over the years has opened doors and provided opportunities that I would never have expected otherwise.

Q. What have you learned by working in this industry?

A. Fluid power is a diverse industry with many opportunities for one to find

their own fit. With the right attitude and willingness to work hard, one can have a lifelong, lucrative, and satisfying career.

Q. Where do you see the industry heading in the next 10 years?

A. Computer control and automation will continue to drive how

Rance Herren, CFPSD, CFPECS, CFPMT, CFPS, CFPAI, Founder, Fluid Power SME

Q. Hpower ow did you get started in the fluid industry?

A. My first exposure to fluid power was as a

machinist for a hydraulic cylinder manufacturer in my hometown in central Kansas. Who knew that first job would lead me to where I am today in owning a fluid power consulting firm?

Q. How and why did you get involved

in IFPS, and what have you gained professionally and personally?

A. I first became involved with IFPS by attending a meeting in San Francisco in 2010. Shortly thereafter, I was asked to join the board of directors and was fortunate enough to become president in 2016. My involvement with IFPS has been one of the most meaningful experiences of my career. It has provided me the opportunity to meet and work with so many talented people with the same desire to give back to the industry that has provided us so much.

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AUGUST 2022

hydraulics and pneumatics are used in new applications, as will the push for electrification in areas that have been the traditional territory of fluid power. Our industry must be prepared to deal with that by improving efficiency, reducing environmental impact, and developing and adapting more hybrid technology. But perhaps the greatest long-term threat to fluid power is in large part one of our own making, and that is in recruiting, training, and retaining the next generation of talent to replace those who are leaving the industry. We must urgently address this head on or be prepared to cede the dominance of fluid power in many of industries’ applications.

Q. What advice would you give someone starting out in the industry?

A. Never stop learning. Even after 37 years in the business, I find that no

matter how much I think I know, there is something new to learn every day.

Q. What are some of your hobbies and interests?

A. I like to travel to historic places, particularly in Europe, and am obsessed

with seeing as many of the world’s great art museums as I can.

Q. Wabout hat is something people would be surprised to learn you?

A. Back in the day, before I made fluid power my career, I played guitar

in rock bands. So even though I never became a rock star, I do have a 64-channel recording studio in my home where I write and record original music.

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I F P S U P D AT E

Newly Certified Professionals May 2022 AUTHORIZED JOB PERFORMANCE PROCTOR George McLellan PNEUMATIC SPECIALIST Philip Roberts Anthony Montabon, Loram HYDRAULIC SPECIALIST Jordan Reisinger Matthew Eckert, Gulf Controls Company SPECIALIST holds HS and PS certifications Anthony Montabon, Loram

INDUSTRIAL HYDRAULIC MECHANIC Nicholas Walker Tyler Crabb, The Boeing Company Mark Mayberry, The Boeing Company John Nason, The Boeing Company MOBILE HYDRAULIC MECHANIC Thomas Johnson, AEP Adam Shanklin, AEP Anthony Withem, AEP Kelsey Eisenhut, Altec Industries Joshua Vogel, Altec Industries Brandon Jones, JTR Repair Forrest Magee, Serco

CONNECTOR & CONDUCTOR Jonathan Portes, EHM Robyn Martin, Ehm Company Hector Rodriguez, Electro Hydraulic Machinery Ron Cotton, Manitowoc Cranes Dillon Harbaugh, Manitowoc Cranes

IFPS Annual Meeting Set for September

»

IFPS’s ANNUAL MEETING takes place Sept. 26-29 at the Embassy Suites Downtown in San Diego.

Events kick off with a Sept. 26 technical workshop titled Electrohydraulic Control Systems.

Tom Blansett, CFPAI, IFPS technical director, and Denis Poirier, CFPAI, training operations manager, Danfoss Power Solutions, present a review of proportional valve concepts, a discussion on basic amplifier principles and tuning strategies, and conclude with a deep dive into how to properly size proportional valves for optimum performance. The session includes team discussions, the interpretation of performance data, and exercises in valve sizing. The workshop starts at 8 a.m. and the cost is $150.

IFPS also hosts the Fluid Power Hall of Fame awards ceremony Sept. 28, when two inductees, including one posthumous, will be honored for significant contributions to the fluid power industry.

To register, visit www.ifps.org.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

SCHEDULE OF EVENTS All times are PDT

Monday, Sept. 26 8:00 AM - 2:30 PM.....................................................Technical Workshop............................. Topeka 3:00 PM - 5:00 PM........................................................... AI Presentations ........................Atchinson 6:30 PM - 8:30 PM............................................ Edgewater Grill (optional).......Meet in lobby at 6:30 Tuesday, Sept. 27 8:00 AM - 9:00 AM.....................Strategic Planning Committee Meeting .........Monterey Ballroom 9:00 AM - 11:00 AM.................................Education Committee Meeting..........Monterey Ballroom 11:00 AM - 12:00 PM.......................... Membership Committee Meeting .........Monterey Ballroom 12:00 PM - 12:30 PM.......................................................... Hosted Lunch.............................. Atrium 12:30 PM -1:30 PM.....................Membership Committee Meeting cont..........Monterey Ballroom 2:15 PM - 5:15 PM................................................ San Diego Bay Tour ($).......Meet in lobby at 2:15 7:00 PM - 9:00 PM..................................................... Welcome Reception ...............Veranda Atrium 9:00 PM - 10:30 PM..The Smoking Gun - Cocktails & Tappas (optional).......Meet in lobby at 9:15 Wednesday, Sept. 28 8:00 AM - 12:00 PM............................. Certification Committee Meeting .........Monterey Ballroom 12:00 PM - 1:30 PM........................................................................................... Lunch (on your own) 1:30 PM - 4:30 PM.................................USS Midway Museum (optional).......Meet in lobby at 1:30 6:00 PM - 9:30 PM............................ Annual Dinner & Awards Ceremony............................. Topeka Thursday, Sept. 29 8:00 AM - 10:00 AM.................................Marketing Committee Meeting..........Monterey Ballroom 10:00 AM - 11:30 AM.................................. Finance Committee Meeting..........Monterey Ballroom 11:30 AM - 12:15 PM.......................................................... Hosted Lunch.............................. Atrium 12:15 PM - 1:15 PM.......................................Board of Directors Meeting..........Monterey Ballroom 1:15 PM - 2:15 PM.... Strategic Planning Committee Meeting Follow Up..........Monterey Ballroom

AUGUST 2022

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I F P S U P D AT E

Upcoming Webinars

ONSITE TRAINING

AND CERTIFICATION FOR: Hydraulic Techs & Engineers Electrical Techs & Engineers Pneumatic Techs & Engineers Multicraft Techs & Engineers

UPSKILL YOUR WORKFORCE! CFC provides direct, Industry and/or Machine-specific training to companies the world over.

Our Hands-On Training Equipment is mobilized directly to your facility with Certified Instructors traveling on-site.

This turnkey approach includes all books, materials, equipment, and travel arrangements.

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Certification Empowers Opportunity.

Upcoming Virtual Training FLUID POWER FUNDAMENTALS Waukesha County Technical College hosts an eight-week virtual course on fluid power fundamentals in partnership with IFPS. Classes will be held online with labs and streamed demonstrations and taught by WCT instructor, Wayne Buroker.

The series is aimed at professionals who would like an introduction to fluid power and the components that make up a system, including customer service representatives, engineers, maintenance technicians, and interested associates. When: The series will be streamed Thursdays from 2:30 p.m. to 4:30 pm (ET) from Aug. 18 to Oct. 6. Registration deadline is Aug. 11. Cost: IFPS members: $299. Nonmembers: $399. Attendees will earn 1.6 CEUs, and receive the Hydraulic Technology Workbook, and a certificate of completion from WCT. Week 1: Introduction to Fluid Power Week 2: Hydraulic Fluids Week 3: Fluid Conductors & Seals Week 4: Hydraulic Actuators Week 5: Directional Control Valves Week 6: Pressure Control Valves Week 7: Hydraulic Pumps and Motors Week 8: Reservoirs and Review FLUID POWER MATH Dan Helgerson, CFPAI, and Tom Blansett, CFPAI, conduct this seven-week series covering fundamental math skills and laying a foundation to calculate more complex formulas. When: Wednesdays, Oct. 5 through Nov. 16, 11 a.m. to 12:15 p.m. (ET). Cost: $199 for members and $299 for nonmembers. The fee includes a calculator, the Fluid Power Math book, and two-year access to the IFPS learning management system. Deadline to register is Sept. 14.

ELECTROHYDRAULIC CONTROL SYSTEMS Tom Blansett, CFPAI, IFPS technical director, and Denis Poirier, CFPAI, Danfoss training operations manager, present this day-long in-person workshop at the IFPS annual meeting in San Diego with virtual access available. The workshop is for anyone preparing for the hydraulic specialist certification test or those who want to broaden their understanding of electrohydraulic control systems. When: Sept. 26, 8 a.m.-2 p.m. (PT). Cost: $150.

Register at www.ifps.org/web-seminars.

Mark Your Calendar ACCREDITED INSTRUCTOR WORKSHOP Aug. 23-25, Denver, CO

We have the capability to upskill your entire workforce NOW!

2022 IFPS ANNUAL MEETING AND HALL OF FAME CEREMONY Sept. 26-29, San Diego, CA

CFCINDUSTRIALTRAINING.com 7042 Fairfield Business Drive Fairfield, Ohio 45014 +1 513.874.3225 info@cfcindustrialtraining.com

FLUID POWER TECHNOLOGY CONFERENCE Oct. 12-13, Detroit, MI

AUGUST 2022

2023 IFPS SPRING MEETING Feb. 27-March 2, 2023, New Orleans, LA

2023 IFPS ANNUAL MEETING AND HALL OF FAME CEREMONY Sept. 25-28, 2023, Milwaukee, WI INTERNATIONAL FLUID POWER EXPOSITION March 14-18, 2023, Las Vegas, NV 2024 IFPS SPRING MEETING March 11-14, 2024, San Antonio, TX For more information, visit www.ifps.org.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

IFPS Updates PS Test and Study Manual

»

IFPS HAS ANNOUNCED upgrades to the pneumatic specialist certification test and study manual.

The PS upgrades reflect the knowledge and skills needed by today’s pneumatic specialists and aligns more closely with standardized pneumatics. Members may download the upgraded study manual free.

Updates to the certification study manual and test include: • The supply side of the manual and test have been scaled back. The Compressed Air & Gas Institute has a supply-side certification that the board of directors suggests you apply for if you want to focus on this aspect of pneumatics. For more information, visit www.cagi.org/personnel-certification/.

• Streamlined equation formulas and text describe how to compute complex formulas for easier calculation.

• Complex topics are reworded for easier comprehension, with additional examples and enhanced graphics to support the material.

There are several ways to prepare for the PS certification test. Visit www.ifps.org/ pneumatic-specialist-3 to access these training resources: • Online PS study manual pretests • Pneumatic interactive training modules • Recorded web seminar Outcome presentations • Pneumatic animated circuits for a visual understanding of schematics Forming a study group is an excellent way to share strengths and knowledge. You can also attend a certification review training course. These are great for companies interested in certifying multiple personnel.

For more information, contact kpollander@ifps.org or visit www.ifps.org/certification-review-training.

IFPS Names Photo Contest Winners

»

IFPS ANNOUNCED the winners in this year’s Fluid Power Professionals’ Day Photo Contest. The winners were, from left to right, Hector Rodriguez, Gwynne O’Kane, and Dan Turner. They each received a one-year membership to IFPS, valued at $75, which entitles them to all member benefits and an IFPS swag bag. Every year on June 19, IFPS celebrates Fluid Power Professionals’ Day to honor the men and women who make our vital industry a success.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2022

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I F P S U P D AT E

IFPS Announces Hall of Fame Inductees »

Certification Empowers Opportunity.

IFPS HAS ANNOUNCED the induction of two fluid power professionals into the 2022 Fluid Power Hall of Fame.

IFPS will induct Robert E. Kraft and posthumously induct Frank S. Frick at an awards ceremony Sept. 28, during its annual meeting in San Diego. The Hall of Fame award acknowledges individuals who have dedicated their careers and made significant contributions to fluid power technology.

Kraft and his wife, Marie, founded Kraft Fluid Systems in 1972. The now employeeowned company addresses the growing need for integrated mobile hydraulic and electronic control systems. KFS serves 11 Midwestern and Mid-Atlantic states. Setting a standard for employee education, training, and experience, KFS is an industry leader, and requires IFPS certification for all technical employee-owners.

Kraft earned both CFPS and CFPE certifications early in his career. He has been an active member of IFPS and served on the board of directors from 2003 to 2008, leading as board president in 2007. Before his retirement, he was committed to the Fluid Power Distributors Association and the Strongsville Chamber of Commerce.

In 1961, he earned a bachelor’s in mechanical engineering from Ohio University and then served three years in the U.S. Navy. During his naval service, he was awarded a patent for the inductive kick suppression solenoid. While employed at Paul Munroe Hydraulics, Kraft was a principal contributor to the first edition of the Lightning Reference Handbook, which became a standard fluid power reference book.

Robert E. Kraft

More than 20 years ago, Bob and Marie established the Kraft Family Associate Professorship Awards. The professorships have provided monetary and professional support for the junior faculty in the department of engineering technology and management at Ohio University. “Throughout my career, I believed education, training, and experience lead to learning and competency,” he said.

Frank S. Flick (1906-1986) graduated from Loyola Academy and in 1927 earned a bachelor’s in mechanical engineering from the University of Illinois. He is credited with 56 patents, 42 of which were for improvements and innovations for both pneumatic and hydraulic cylinders. About 460 of his original cylinder dimensions are now incorporated into the NFPA cylinder standards.

Along with his partner, William J. Reedy, Frank purchased the Miller Motor Company in 1942. Descendants of that company were Flick Reedy Company and Miller Fluid Power Company, which is now a division of Parker Hannifin.

Flick received numerous awards, including three National Industrial Recreation Association Helms Awards for excellence in employee relations. He was awarded Citizen of the Year and an Americanism Award from the Veterans of Foreign Wars, the First Partnership Award of the Labor-Management Association, the Senior Citizen of the Year Award from the Chicago Park District, and a Pro Ecclesia et Pontifice decoration from Pope Paul VI.

Frank S. Frick

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AUGUST 2022

As early as 1957, Flick saw one of his inventions go into space: six tiny nuts were used to seal the highly corrosive fuel, helping to thrust four-pound Vanguard satellite 300 miles into the atmosphere. Implementing his fervor for education, Frank trained hundreds of his employees. He became known for his successful and effective employment policies and was known to have “trained the industry.”

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

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 headquarters if you do not see a location near you. Every effort will be made to accommodate your needs.

If your test was postponed due to the pandemic, please contact headquarters so that we may reschedule.

TENTATIVE TESTING DATES FOR ALL LOCATIONS: September 2022 Tuesday 9/13 • Thursday 9/29 October 2022 Tuesday 10/11 • Thursday 10/27 November 2022 Tuesday 11/8 • Thursday 11/17 December 2022 Tuesday 12/6 • Thursday 12/15

JOB PERFORMANCE TEST LOCATIONS Arizona Nova Scotia California Pennsylvania Colorado Texas Florida Washington Georgia Wyoming Maine Western Michigan Australia Minnesota Montana New Jersey

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

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

AUGUST 2022

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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

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 Aug. 23-26, Charlotte, NC. Contact mzanon@hydeparkpartners.us Livingston & Haven. Written test: Aug. 26.

Aug. 29-Sept. 1, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test Sept. 1.

Oct. 25-28, Charlotte, NC. Contact mzanon@hydeparkpartners.us Livingston & Haven. Written test: Oct. 28.

ELECTRONIC CONTROLS SPECIALIST Aug. 8-11, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test: Aug. 11.

CONNECTOR & CONDUCTOR Nov. 15-16, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test Nov. 17.

MOBILE HYDRAULIC MECHANIC Oct. 10-12, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written and JP test Oct. 13.

Online review for written test. Contact info@cfcindustrialtraining.com. IFPS members can email askus@IFPS.org for a 20% off coupon code. Test fees not included.

INDUSTRIAL HYDRAULIC TECHNICIAN Onsite review training for small groups. Contact IFPS for details.

MOBILE HYDRAULIC TECHNICIAN For dates, call 513-874-3225 or contact info@cfcindustrialtraining.com.

CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM)

PNEUMATIC TECHNICIAN and PNEUMATIC MECHANIC For dates, call 513-874-3225 or contact info@cfcindustrialtraining.com.

CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic

JOB PERFORMANCE TRAINING Online review. Contact info@cfcindustrialtraining.com. Reviews includes stations 1-6 of the IFPS mechanic and technician job performance tests. Members can email askus@IFPS.org for a 20% coupon code. Test fees not included. To register, contact info@cfcindustrialtraining.com.

CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic CFPPM Certified Fluid Power Pneumatic Mechanic

LIVE DISTANCE LEARNING JOB PERFORMANCE STATION REVIEW Contact info@cfcindustrialtraining.com for information.

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

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AUGUST 2022

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SPECIAL AD SECTION

www.inserta.com www.adaconn.com

Web

MARKETPLACE

Adaconn® + Inserta® offer a variety of components including flange adapters and connectors, ball valves, check valves, pressure controls, and modular fittings that can be used to make smartly designed compact hydraulic systems. A large inventory of finished components allows most standard items to ship from stock. Custom components and assemblies are available.

Visit our website to learn more about our expanding product offerings.

www.flangelock.com The FlangeLock™ Tool is the ultimate contamination control tool for protecting your hydraulic systems. It allows for the simple sealing of open SAE code 61, 62 & CAT-Style hydraulic flanges without tools. Constructed from lightweight aluminum. Easy on, easy off. Offers a leakproof solution to hydraulic system and environmental cleanliness.

FlangeLock™ Tools stop the mess!

Have a Purchase Order? Please email to sales@flangelock.com or fax to 203-622-1238

www.jasonindustrial.com www.hiigroup.com HYDRAULICS INTERNATIONAL, INC. • CIRCLE 122

No Compromise on Quality or Performance Established in 1976 and headquartered in Chatsworth, California, Hydraulics International, Inc. (HII) is a leading provider of pneumatically driven hydraulic pumps, portable and skid mounted high pressure hydrostatic test units and accumulator charging units on a global basis. Since inception, HII has maintained an intense focus on design and engineering, striving to stay at the forefront of fluid power technological advances.

Proudly made in the USA. When reliability counts, depend on the strength of a leader…HII, the leading name in high pressure pumps and gas boosters.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JASON INDUSTRIAL® offers a comprehensive portfolio of industrial hose, couplings and accessories along with hydraulic hose, fittings and crimping equipment to distributors throughout the Americas.

Jason Industrial operates distributor centers throughout North, Central and South America.

You can feel confident in the quality and integrity of our products, the speed and efficiency at which they are delivered, and the expertise and customer focus that our local representatives are committed to providing.

www.mainmanufacturing.com Main's website provides quick access to the 120 page catalog that includes popular styles of MAIN Manufacturing’s extensive offering of carbon and stainless Hydraulic Flanges and Components – ready for immediate shipment.

Metric ordering information, weld specs, and dimensional information included. The “Quick Reference Guide” helps specify less popular items often stocked or quickly manufactured (generally 3-4 days) at our US plant. “Create-AFlange” offers more parts than the catalog — by picture. If it’s not here, or for questions, E-mails may be sent to get your answer quickly.

1-800-521-7918 info@mainmfg.com

AUGUST 2022

17

One for the Road Providing Power on Demand

By Michael Pyper for Bucher Hydraulics

18

A truck-mounted loading crane with the electrohydraulic power take-off connected directly to the battery.

AUGUST 2022

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

The compact and flexible components of a Smart PowerPack can be distributed around commercial vehicles.

R

egulations for road vehicles in the European Union are becoming increasingly stringent. To reduce CO2 emissions, mechanical V-belts or power take-offs may no longer exist on future commercial vehicles. Energy-efficient electrohydraulic systems, like Bucher Hydraulics’ latest range of Smart PowerPacks, provide an alternative.

The facts are on the table. In 2019, the EU committed to reducing CO2 emissions from heavy commercial vehicles by 30% percent of 2005 levels and to achieve this by 2030. The first 15% must be achieved by 2025. Otherwise, manufacturers may face penalties of an undetermined amount that are likely to be painful. However, only on-highway trucks are affected.

Vehicles such as refuse collection and municipal trucks with loading cranes are initially exempt from the regulation.

But this year, the EU Commission is scheduled to discuss how to proceed in this area, and the regulations are likely to be strict. A report called Study of the Potential for Energy/ Cost Saving in Fluid Power, commissioned by the German Federal Environment Agency, has identified and evaluated

To reduce fuel consumption, vehicle manufacturers are removing PTOs from their future product ranges. Compressors, fans, and steering and hydraulic pumps will be driven electrically.

Smart PowerPack S for up to 6 kW (low voltage up to 60 VDC).

various measures for construction and agricultural machinery. Applying lessons of this report, such as the avoidance of idling periods and the demand-based control of auxiliary actuators, are particularly promising for these vehicles.

No more PTOs If the EU regulations regarding CO2 emissions are extended to other commercial vehicles, manufacturers of auxiliary units will be particularly affected. In conventional equipment, auxiliary equipment such as cooling water pumps, air-conditioning compressors, add-on equipment for municipal work functions, and loading cranes have been driven by hydraulic pumps. These pumps are usually connected to the truck engine mechanically via a gearbox, a power take-off shaft, or a V-belt. In rare cases, they can be disconnected by couplings, (Continued on page 20) WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2022

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(Continued from page 19) Smart PowerPack L for more than 30 kW (high voltage of 400 to 800 VDC).

The compact and flexible components of a Smart PowerPack can be distributed around commercial vehicles.

but they usually run continuously. To keep the initial cost down, less expensive pump systems with energy losses of 50% to 75% are often chosen. This is why large oil coolers are often required.

Diesel engines for trucks are optimized for driving at 80 kmh (50 mph) on the highway, where they operate efficiently at low speed and high load. Because the pump rpm is directly related to engine rpm, the engine speed must be raised to provide the high flow rate required for stationary use. This is not only noisy but inefficient, as the engine then works at an unfavorable operating point with poor combustion and high fuel consumption.

To reduce fuel consumption and thus emissions, vehicle manufacturers are removing PTOs from their future product ranges.

Compressors, fans, and steering and hydraulic pumps will be driven electrically using the power-on-demand principle, with no direct connection to the engine.

Electrification of the hydraulic PTOs enables the use of power on demand exactly. Hydraulics cannot be eliminated, as it is indispensable for linear movements with high force. However, the hydraulic system must become more efficient to prevent costly energy losses.

Bucher Hydraulics developed Smart PowerPacks for utility vehicles with precisely this goal in mind. The Smart PowerPacks provide precisely the flow and pressure required and only on demand.

This is the key for energy optimized operation. The Smart PowerPacks can be combined with or replace all commercially available hydraulic control systems.

Speed set point

Hydraulics is indispensable for linear movements with high force.

However, the hydraulic system must become more efficient to prevent costly energy losses.

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AUGUST 2022

A key component for higher performance is the AX pump. It has 24 pistons and is designed for variable-speed applications. The large number of pistons keeps pulsations very low. The wide speed range from 0 to 3,600 rpm allows for full use of the electric drive.

The minimum speed limit of conventional pumps does not apply to the AX pump, which can operate from 0 with no breakaway effect.

With an overall efficiency between 92% and 94%, it far exceeds the values of conventional pump solutions. The system includes a smart hydraulic block, which generates the information on the actual flow demand and integrates the pressure relief function.

The system uses inverters from Bucher Hydraulics mobile drives.

These calculate the speed set point internally, which keeps the installation costs low.

The Smart PowerPack is available in various sizes. In addition to the AX pump for high performance, the modular system includes external and internal gear pumps, thus covering a wide range of applications. As many body manufacturers and retrofitters do not yet have experience with such electrohydraulic drives, Bucher Hydraulics offers advice and design support.

The Smart PowerPack is configured to match the pressure and flow requirements of the application. The modular system includes various pump lines and sizes from Bucher Hydraulics, as well as the matching electric motors and inverters from Bucher Hydraulics mobile drives. Internal sensors allow the electric motor to modulate using the lowest possible pump speed to achieve the required flow and pressure.

Benefits include a reduction of fuel consumption by decoupling the PTOs, a reduction of cooling requirements, lower noise emissions, and control of battery capacity thanks to demand-based flow supply. •

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

FIGURE IT OUT

New Problem

Deep Pan Forming Press Loses Operating Pressure

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

»

A MANUFACTURER OF cooking pots and pans had a large 200-ton press in which the pressure would only go to 600 psi. They needed a minimum of 3,500 to 4,500 psi. The circuit on the right shows the basic circuit for the main ram function.

While troubleshooting, they found that the return line filters were missing their elements. The company didn’t know how long the press had run without them. They decided to drain and flush the system and install new filter elements. They confirmed that all the solenoids were shifting by manually actuating and then electrically energizing and de-energizing the coil. They also checked all the orifices shown on the drawing, and some they found that were not.

The proportional valve had spool feedback that confirmed the spool did shift and return to neutral.

THe system pressure would drop to 400 psi when the idle valve solenoid #7 was de-energized, compensating the pump to standby. No loud oil flow noise could be heard. The separate solenoid #6 operated control valve is used to unload the manifold mounted start-up/safety relief valve. The DCV coil #6 would energize three to four seconds after the start-up of the electric motor. (This would reduce the inrush AMP draw caused by the start-up of the electric motor.) They found that if they energized solenoid #7 and de-energized solenoid #6, there was a loud rush of oil flowing somewhere in the manifold on which the valves were mounted. Replacing the start-up/safety relief valve did not fix the issue.

What could be the problem?

DE-COMPRESSION VALVE

SOL. 5

I P

LOCK VALVE

SOL. 4

SOL. 3 COUNTER BALANCE SLOW SPEED RETRACT

OPEN PRE-FILL

SOL. 1

RELIEF DCV

START-UP / SAFETY RELIEF VALVE SET AT 4750 PSI

Y

75HP 1800 EM MAX 4500 PSI LOAD SENSE 400 PSI

Solution to the July 2022 problem:

Hydraulic Motor Slows as Accumulator Discharges

Sometimes we forget that a speed control flow is determined by the pressure drop across the valve. If you increase or decrease the pressure drop without changing the valve setting, the flow will change. As the accumulator precharge drops, the pressure differential decreases, causing the flow through the valve to decrease. Changing the flow control to a pressurecompensated flow control design solved the problem and gave them constant flow.

SOL. 8

SOL. 2

SOL. 6

80 GPM

SOL. 7 IDLE VALVE

H2O

OVERHEAD TANK

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.

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AUGUST 2022

21

SPECIAL AD SECTION

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P RO D U C T R E V I E W

Trelleborg Launches D-Seal Design to Lower Emissions

»

TRELLEBORG SEALING SOLUTIONS recently launched its enhanced double D-seal, a resilient, dual-function sealing and damping solution specifically developed to meet the needs of the automotive, truck, and transportation industry.

Designed specifically for static and semidynamic powertrain applications in which vibrations can cause damage, D-seals can extend the time-to-service intervals of the engine, contributing to lower emissions through improved efficiency.

Developed as an alternative to O-rings, X-rings, square-rings, and other ovalshaped seals, Trelleborg developed two main designs of the D-seal: an enhanced double D-shaped seal and an updated single D-shaped seal. The robust designs each have a customized profile that effectively absorbs vibrations and maintains strength and rigidity.

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AUGUST 2022

23

TEST YOUR SKILLS

S

The Application of Fluids

election of viscosity must be made with the normal operating temperature of the machine in mind. The temperature is usually measured at the pump. The correct viscosity at the expected operating temperature will allow the fluid to transmit the power most efficiently while still lubricating and cooling the machine without exhibiting excessive leakage. If the viscosity is too high (the fluid is too thick), the operation of the machine will be sluggish and excessive heat will be generated as the fluid flows through the system. If the fluid is not viscous enough, the fluid will bypass the closefitting parts of components. This leakage is called slippage. As the fluid leaks internally from areas of high pressure to areas of lower pressure, heat will be generated. External leakage may occur as well, as the fluid may be thin enough to bypass seals.

Liquids used for hydraulic fluids include petroleum-based oils, synthetics, water-glycols, oil-in-water, and water-in-oil emulsions, and high water content fluids. It is estimated that about 80% of the hydraulic fluid sold each year is petroleum-based oil, with the remaining 20% being the other four types, which are also fire resistant. Industries that use fire-resistant fluids include forging and extrusion, coal mining, chemical-petroleum power, die casting, foundries, metal fabrication, plastic injection molding, and primary metals manufacturing.

Petroleum-based hydraulic fluids, refined from selected crude oil, are formulated with an additive package to reduce friction, wear, rust, oxidation, and foaming. Acidity and viscosity improvers help to maintain the viscosity between narrow limits at the expected operating temperature. If the fluid thins out excessively as the machine comes to operating temperature, the volumetric efficiency of the pump and actuators decreases, and the likelihood of internal leaks increases.

Petroleum oil has the natural ability to transmit power, has good lubrication properties, dissipates heat reasonably well under in-plant operating conditions, and is compatible with most sealing materials. As long as the temperature is held below 140°F (60°C) and the oil is kept free of contaminants, petroleum-based fluids are long lasting and stable. If there is a catastrophic failure of the pump, the system must be properly flushed and new, filtered fluid must be added to prevent contaminating the new pump and other components. The condition of the fluid should be determined by periodically analyzing samples.

There is a misconception that fire-resistant fluids will not burn. Most hydraulic fluids will burn if the temperature is high enough. What fire resistance means is that the fluid will not continue to burn once the source of ignition is removed. Straight synthetics are used where a fire hazard exists and where the high cost of the fluid is not prohibitive. Water-glycols and water-in-oil emulsions reduce the possibility of ignition. High temperature will evaporate the water component of the fluid, removing heat from the reaction. High water content fluids are the most fire resistant because the water-content-to-additive ratio is too high for the additive to ignite.

Oil-in-water emulsions surround the oil molecules with water, making water the continuous phase. Oil-in-water emulsions are used primarily for cooling, such as in cutting oils and coolants. Water-in-oil emulsions are mixtures of oil and water with the oil surrounding the water droplets. Thus, the oil is the continuous phase, which usually gives superior lubricating quality. Water-in-oil emulsions are called invert emulsions.

Water-glycol fluids are designed for use in hydraulic systems operating in 24

AUGUST 2022

areas with a source of heat, ignition, or where there is a potential fire hazard.

They are a mixture of water, ethylene glycol, and high-viscosity lubricating and thickening agents, along with additives to prevent corrosion. Most water-glycol fluids are limited to use in low to medium pressure and noncritical applications because their water content limits their lubricating and wear-resistance characteristics. The use of water-glycol fluids may require lower operating pressures and rotational speeds based on manufacturer's recommendations. Water-glycol fluids attack zinc, cadmium, and aluminum, so these elements must not be located anywhere in the system in order to prevent contamination and deterioration of the hydraulic system.

Usually, no special hoses, seals or packing materials are required when changing over from hydraulic oil, although neoprene, Buna N, and Viton are the most common compounds used for seals. However, it is best to check with the fluid supplier to verify this information. Commonly nylon, butyl, or neoprene are used in hose construction. The high water content in water-glycol fluids excludes the use of leather, cork, untreated cotton, and cellulose packing. Water-glycol fluids will also dissolve certain pipe sealing compounds, as will phosphate ester fluids. Only compatible pipe sealing compounds and dopes may be used. Water-glycol fluids have low toxicity and are not irritants to the skin.

High water content fluids (HWCF) are relatively inexpensive and have excellent fire-resistant qualities. Lubrication quality and viscosity stability under severe use and at elevated temperatures depend on which fluid additives are used. Because 90% of the fluid is water, HWCF has excellent heat transfer qualities, but the temperature must be kept within the range of 40°F to 120°F (4.4°C to 48.8°C) to prevent freezing and evaporation. Because the viscosity is typically low, HWCF tends to scour the system and carry foreign particles. For this reason, fine filtration is recommended. Also, because the water content is very high, the fluid must be closely monitored to keep the additive level at the proper balance and to control the microbe level.

Because the specific gravity of high water base fluids is much greater than that of petroleum base fluid, it is highly recommended that reservoirs be mounted above the pump to prevent cavitation.

Environmentally friendly fluid There are an increasing number of fluids being made available that have a reduced impact on the environment. Referred to as biodegradable and/ or nontoxic, these fluids are designed to have a limited effect on vegetation and animal life. These terms are not absolute, and care must be given to be sure the product is appropriate for the specific application. This includes the potential environmental impact as well as lubricity and chemical compatibility with hydraulic components. These fluids range from food-grade vegetable oils with limited useful temperature characteristics to engineered products with wide viscosity and temperature ranges. Most of the environmental fluids have high flash points designed for use where good fire resistance is important. Some of these fluids may require a reduction in the pressure and speed ratings of pumps and motors. If the choice is made to use or switch to an environmentally acceptable fluid, there are some important issues to consider.

Seal and conductor compatibility. Traditional nitrile (Buna-N) seals may fail quickly when used with environmentally friendly hydraulic fluids. Some fluids may require special seal materials that are formulated specifically to WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

work with them. In addition, the hose material must be compatible with the fluid. The fluid supplier, equipment manufacturer, and seal supplier should all be consulted before converting any system to an environmentally friendly fluid.

System flushing. Although traditional petroleum base fluids will mix readily with environmentally friendly fluids, this should be avoided because the petroleum contamination will nullify the biodegradability and toxicity benefits of the green product. Very thorough system flushing is necessary, and it is often advisable to perform multiple flushes to ensure the system is perfectly clean before adding the environmentally friendly fluid.

Note, especially, that engine oil additives are not compatible with environmentally friendly fluids. Equipment that has been operated with engine oil as a hydraulic fluid requires exceptionally thorough cleaning before the environmentally friendly fluid is installed. Furthermore, virtually all hydraulic components are tested with petroleum base fluids. Any new component being installed on a system using environmentally friendly fluids must be thoroughly flushed prior to installation to avoid contamination.

Maintenance. Filtration requirements are generally the same for petroleum base and environmentally friendly fluids in terms of particle sizes.

However, the filter change interval may be different, particularly with fluids

that have shorter service life and a tendency to produce varnish and other contaminants. Note also that most environmentally friendly fluids have a higher specific gravity than traditional petroleum-based fluids. This may require adjusting inlet conditions to avoid cavitation.

Always comply with the manufacturer's recommendations for the use of the fluid and the components that come in contact with the fluid.

The change in viscosity as the temperature of the fluid changes is described by the viscosity index. The viscosity index is a measure of the stability of the viscosity of the fluid between two temperature extremes. As temperature increases, the fluid becomes thinner, and viscosity decreases. The proper viscosity index of a fluid for a particular application is determined from the fluid temperature change requirements of the machine. Industrial production machinery, for example, generally keeps the oil within a narrow temperature range, so a low viscosity index would be suitable. Mobile hydraulic equipment that must operate between freezing or even sub-freezing temperatures to nearly 160°F (71°C) requires a fluid with a stable viscosity over the entire temperature range, calling for a viscosity index of 100 or more. Consult the pump manufacturer’s fluid specifications. •

Common Viscosity Measurement Scales Centistokes at 100° C -9.0 -8.0 -7.0

-6.0

Centistokes at 40° C -70

ISO Viscosity Grade

SAE Crankcase Viscosity Number

SUS at 100° F -400

68 80W

-60 -50

SAE Gear Viscosity Number

-40

-50

-200

-5.5 -5.0

-55

-300 20 or 15W20

46

SUS at 210° F

-45 -30

-4.5

32 22

70W

-150

-43

10W

Most Common Viscosity Ranges Used in Industrial Systems Viscosity comparison.

TEST YOUR SKILLS emulsion is: 1. A water-in-oil a. the same as an oil-in-water emulsion. b. better for cooling than oil-in-water emulsions. c. better for lubrication than oil-in-water emulsions. d. a contamination issue that must be resolved. e. the most effective fluid for removing heat.

See page 31 for the solution.

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AUGUST 2022

25

ON THE SAFE SIDE

How Pneumatics Protects Our Food

By Mike Parzych, Product Marketing Manager, Norgren

I

n February, the Abbott baby formula plant in Sturgis, Michigan, closed due to concerns that its formula may have been contaminated with a bacteria implicated in the death of at least one infant. This shutdown of one of the nation’s largest baby-formula facilities occurred at a time when supply chains were stretched thin, exacerbating a serious formula shortage that had been plaguing families across the country. After several months of continuous supply depletion, Abbott was finally granted permission by the U.S. Food and Drug Administration to reopen the plant in May. Unfortunately, supply chains inevitably need time to recover.

At the time this article was written, formula shortages were expected to continue impacting Americans for months to come.

The perils of unsafe food are neither new nor unfamiliar. Since Congress passed the 1906 Food and Drugs Act, hundreds of amendments and improvements have been deemed legally necessary so that consumers can trust that the foods they are eating will not harm them. To comply with these laws, production and food-handling technologies must continuously adapt.

Pneumatic technologies play a part in the supply chain that brings food from farms to tables. This article explores fluid power technologies in food and beverage processing and describes design features and considerations that facilitate necessary levels of food safety.

Food processing safety FDA guidelines are clear about the requirements for any equipment that handles food for human consumption. Among other regulations, all equipment must be made of nontoxic material that will not corrode on contact with food. Additionally, seams must be smoothly bonded to avoid the growth of microorganisms; compressed air that contacts food must be treated to prevent contamination; and equipment must be adequately cleaned. This means that pneumatic applications for food processing require specific elements before they are safe for food processing.

Considerations for washdown. When designed appropriately, pneumatic components are well-suited to frequent washdowns, particularly given the minimal involvement of electronic components, which would 26

AUGUST 2022

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NSF-certified quick connect valves.

Air preparation unit.

Stainless steel manifold and NSF-certified solenoid valves.

need to be protected from water. However, there are certain considerations to ensure a food-safe washdown is possible. For one, the materials chosen for use with foods and beverages must be thoughtfully selected.

At the same time, much depends on the type of food being processed.

Several food types – consisting of different chemical properties – leave behind unwanted food material on equipment surfaces that may come into contact with other foods. Sugars, for example, are water-soluble and easy to remove. However, proteins are alkali-soluble and very difficult to remove. This means that the components that undergo washdown processes must be able to withstand the appropriate, sometimes harsh, cleaning compounds without corrosion. These standards are not limited to the components that come into direct contact with food. Components in splash zones and nonfood zones must also be corrosion-resistant, washable, and sanitary.

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Considering these requirements, appropriate material choice is paramount when designing a pneumatic system. Metals such as aluminum, brass, and copper can be susceptible to corrosion, and care must be taken when cleaning them. Due to its resistance to corrosion, stainless steel is a favored selection for components such as valves and actuators in a number of applications – most especially in more frequent washdowns.

In fact, stainless steel is specified in many industry and regulatory standards as the preferred surface for food equipment. For example, 3-A Sanitary Standards identify 300-series stainless steel as the preferred surface for use in the milk industry. Other grades of stainless steel are appropriate for alternative purposes such as handling high-fat products or meats. Titanium is a corrosion-resistant option, particularly appropriate for products containing high levels of acid, salt, or other corrosive materials. Depending on the chemistry of the cleaning solution, plastics such as acetyl resin are another viable alternative.

Pneumatic components are also favored to carry out the washdown in applications in which only low-to-moderate force is required. In these situations, when selecting pneumatic components such as actuators and valves, consideration should first be given to the construction materials.

Stainless steel components should be employed whenever possible, such as in pneumatic cylinders designed with stainless steel bodies, end caps, and piston rods.

Other design features that make pneumatic cylinders optimal for use in low-to-moderate force washdown applications include rod wipers, which limit the potential for external contamination during pressure spraying; rod scrapers, which are more rigid and are suitable in applications where material can harden on the rod; and corrosion-resistant bearing and bushing materials, such as polytetrafluoroethylene.

Preventing contamination. Additionally, the physical design of pneumatic components is critical to preventing contamination in food applications. Cracks, crevices, and other hard-to-clean areas are prime locations for the growth of harmful bacteria such as E. coli and salmonella, which can cause food poisoning. Therefore, care must be taken to select products that minimize the number of such potential bacterial repositories in pneumatic equipment. Any surfaces that come into contact with food should be smooth. Moreover, welded seams should be continuous and free of pits or cracks, and any corners should be at an angle or position where they can be easily cleaned.

In cases where food products are moved through a series of pumps, motors, valves, sensors, and fittings, products can potentially come in contact with lubricants such as O-ring grease or other contaminants.

Newer automated system designs employ prepacked, sanitized tubing or membrane bags to create a sterile barrier between the products and the components that handle them. Rather than dispensing a food or beverage directly through a traditional wetted valve component, for example, a pinch valve interacts with the tubing and never touches the fluid material being dispensed.

It is also important to consider that physical surfaces are not the only concern for pneumatics in food processing. Any compressed air that may come into contact with food must be clean as well. Pathogens, moisture, and debris may be in the air that is compressed to power a pneumatic circuit. Therefore, designers of pneumatic systems must be cognizant of where compressed air makes contact with food, and they must equip the machine with high-quality filters to ensure air purity and reduce the risk of foodborne illness. Lubrication is another concern, as oil lubricants may drip and contaminate food. Pneumatic components can use foodgrade grease instead, as it is nonmigratory and unlikely to drip. Because it is food-grade, minimal contact with food products is considered safe.

(Continued on page 28) AUGUST 2022

27

(Continued from page 27)

Safety in foodservice Pneumatics also plays a growing role in foodservice, that is, food preparation and beverage dispensing. Advances in fluid power components and automation are enabling progressively safer options to mitigate conditions that threaten to compromise food safety.

Beverage dispensing. It does not matter whether it is dispensing hot, cold, or frozen beverages, a foodservice or drinking establishment requires fluid control and pressure management to continue satisfying its customers. For example, pressure regulators are used in commercial establishments for precise CO2 and nitrogen control for soft drink, coffee, and beer dispensing systems.

However, beverage dispensing comes with its own food safety considerations. For example, fluidics and pressure management solutions are indispensable to coffee and tea brewers. Valves provide consistent control when drawing cold and hot water, steam, or syrups and in semiautomatic and fully automatic espresso machines. Yet the introduction of contaminants to beverages through a coffee machine presents a safety concern. To address this, solenoid valves have been perfected for commercial coffee machines to prevent corrosion and limescale buildup and to provide quick heating with minimal heat loss.

Another safety concern encountered with liquid dispensing is dripping, which has the potential to contaminate other foods or beverages and can foster the growth of bacteria wherever the drip lands. A suck-back valve, located between the shut-off valve and the end of the dispensing nozzle, can apply a vacuum when the shut-off valve is closed, eliminating any dripping.

All of this reflects a larger industry-wide push to maintain standards for ensuring the safety of food and beverage products. For instance, components need to be structured of NSF-approved materials. And all food equipment materials and drinking water system components must be NSF/ANSI 51 and NSF/ANSI 61 certified. Hundreds of manufacturers are certified to NSF/ANSI 51 while thousands have received NSF/ANSI 61 certification.

Automation in food preparation. Partially in response to the elevated awareness of food safety brought on by the COVID-19 pandemic, foodservice establishments have increasingly turned to automation as varied as self-service, no-contact ordering kiosks and robotic tortilla-chip makers. Automated equipment reduces the chances of disease being passed through interpersonal contact or poor personal hygiene. After all, robots cannot contaminate food by coughing or sneezing on it.

What’s more, many of these automated solutions can use pneumatics.

One example is the use of pneumatically powered grippers or vacuum cups at the end of robotic arms to handle food. Here, care must be taken to match the cup design to the type of food being handled. Vacuum cups can be made of FDA-approved silicone to be safe for food handling, and they are easy to clean through washdown or reversing the flow of air. When the cup becomes too old to avoid contamination, it can be swapped out for a new one without difficulty.

As in other applications described previously, food preparation requires construction materials that are food-safe and can withstand environmental factors without damage or corrosion. In particular, hot kitchen grease and the corresponding washdown solutions are a concern, again, making stainless steel a material of choice for actuators and other components.

Within foodservice, automation enhances but does not replace labor.

By offering a method that prevents contamination and reduces foodborne illness through less human contact with food, automation provides a safer option for food preparation.

Fluid power and other automation technologies are being integrated into every aspect of the food and beverage industry, from processing to food preparation and beverage dispensing. New capabilities and applications – enabled by advances in construction material, specialized functionality, and incorporation with higher technology – are being developed to improve the processes and meet the demands for food and beverage products. And as these new solutions develop, so does their ability to ensure safety within the food and beverage industry .•

CONNECTED PNEUMATICS: A MECHANISM FOR ENSURING FOOD SAFETY If something is not functioning as it should in food production, particularly in a way that impacts food safety, finding out as early as possible is of the utmost importance. Connected pneumatics generate data through a variety of sensors and switches, producing information such as cycle counts, pressure, flow, and temperature, to name a few examples. This flow of data and diagnostics can alert manufacturers to issues in real time as they arise. For example, an IO-enabled switch on an actuator can monitor and send alerts of ambient or maximum temperatures, which can help ensure safe food processing and storage. Similarly, if system pressure is too low or high, an IO-enabled pressure sensor can send a warning so that appropriate action can be taken to avoid production issues and ensure a quality product.

—Mike Parzych

28

AUGUST 2022

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The correct answer to Test Your Skills on page 25 is c.

ADVERTISER INDEX Company................................................................... Page......................................................... Phone................................................................................Web

Adaconn/Inserta.......................................................... 17...................215-643-1000, 215-643-0192....................... www.adaconn.com, www.inserta.com AEM.................................................... Inside Front Cover....................................................................................................................................www.IFPE.com Almo Manifold.............................................................. 31........1-989-984-0800, 1-800-ALMO-NOW........................................................ almomanifold.com Canfield Connector................................................... 5,22..........................................1-800-554-5071....................................... www.canfieldconnector.com CFC-Solar...................................................................... 12.............................................513-874-3225........................www.CFCINDUSTRIALTRAINING.com Clippard..............................................23, 31, Back Cover.............................................877-245-6247.........................................................www.clippard.com Flange Lock.............................................................. 3, 17.............................................203-861-9400.....................................................www.flangelock.com Fluidyne Fluid Power ............................................ 22, 31..........................................1-586-296-7200.................................................... www.FluidyneFP.com Hunger Hydraulics..........................................................3..........................................1-800-248-9232................................................. hunger-hydraulics.com Hydraulex...................................................................... 31..........................................1-800-422-4279......................................................www.hydraulex.com Hydraulics International, Inc................................... 5, 17.............................................818-407-3400...................................................... www.hiipumps.com Hydraulics, Inc........................................................ 23, 30.............................................817-923-1965................................................www.hydraulicsinc.com Jason Industrial....................................................... 3, 17..........................................1-630-752-0600............................................. www.jasonindustrial.com Lubriplate............................................Inside Back Cover.............................................800-733-4755...................................................... www.lubriplate.com Main Manufacturing Products............................. 17, 31..........................................1-800-521-7918.......................................................www.mainmfg.com \Wilkes and McLean Ltd....................................... 23, 30.............................................877-534-6445........................................ www.wilkesandmclean.com Yates.......................................................................... 1, 22..........................................1-586-778-7860........................................................www.yatesind.com WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2022

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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Please Type or Print Clearly: First Name

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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

G  1000+

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MY COMPANY SHOULD BE ADVERTISING IN OR SUBMIT AN ARTICLE TO THE FLUID POWER JOURNAL. PLEASE CONTACT THIS PERSON: NAME:______________________________________ TITLE:_______________________________________

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HYDRAULIC FLUIDS WITH

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