Fluid Power Journal September 2021 by Innovative Designs & Publishing, Inc.

SEPTEMBER 2021

fluidpowerjournal.com

THE

SHIFTING GEARS TO ZERO EMISSIONS

UTILITY EXPO

BOUNDARY LUBRICATION IN CYLINDER SEALS

ISSUE

P.10

SALARY SURVEY RESULTS P.26

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Choosing the Right Seal for a Hydraulic Pump

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IN THIS ISSUE

SEPTEMBER 2021

VOLUME 28 • ISSUE 9

Features 6 Vote of Confidence: Choosing the Right Seal for a Hydraulic Pump Oil seals are essential to keeping high-pressure equipment running. 8 On the Border: Boundary Lubrication in Cylinder Seals An allowable amount of fluid on a sealing lip promotes longer product life. 10 Cover Story Shifting Gears: Converting to an Electrohydrostatic Transmission A technology that does not require redesigning ICE off-highway vehicles.

18 Utility Expo Opens in Louisville 22 Test Your Skills The Function of Fluids 26 Survey Shows High Job Satisfaction, Aging Workforce The results of the IFPS-Fluid Power Journal salary poll.

18 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.

CELEBRATING 60 YEARS

Departments 4 13 20 24 28 29 31

Notable Words IFPS Update Component Showcase Product Spotlight Figure It Out Literature Review Classifieds

Allegheny York AMERICA’S HYDRAULIC AND PNEUMATIC SEAL SUPPLIER 3995 N. George St. Ext. ● Manchester, PA 17345 P: 717-266-6617 ● F: 888-496-7526 ● www.AlleghenyYork.com

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N OTA B L E WO R D S

A New Era of Automation By Aurelio Banda, Group Vice President of Automation, Motion

TODAY, AUTOMATION AND manufacturing are synonymous with transforming an industrial company. The demand for automation technology is growing as companies across industries look for ways to streamline and speed production and manufacturing. The trends of high-cost labor, low cost of capital, workforce skills gap, reshoring manufacturing footprint, and pandemic-proofing operations lead the way for automation justification to transform factory floors. Furthermore, a new automation era is upon us with rapid advances in robotics, artificial intelligence, data analytics, IIoT, and machine learning. This technology enables machines to match or outperform human capital in a range of workplace activities, including repetitive and cognitive tasks. The acceptance for automation and the change in manufacturing fall across an arch of present needs with future outcomes in mind for industry executives. Companies range from just getting started to already embracing automation; a growing number foresee the implications of this new automation age on their ongoing business model. Several factors to consider in connecting the present to future states of automation are: 1) T he present state: What automation is making possible with current technology. 2) T he transforming state: What is likely to be made possible as technology evolves. 3) T he future state: What to consider (besides technical feasibility) when evaluating automation – where and how much to automate to best capture value over the long term. A leading direction in the new automation era brings both engineering and IT disciplines to set the pace for future automation and technology. For example, with the rise of automation and robotics acceptance in their sites, many manufacturers will be operating high-speed and high-volume production applications. Most advanced systems will run adjustments without interruption, switching between product types with no need to stop the line to change programs or reconfigure tooling – a function of both engineering and IT disciplines. This integration convergence is realized through communication between machines and robots – the engineering discipline – on the factory floor, calling on the IT discipline to supervise the modern networking technologies. The manufacturing future is to leverage technology, balancing the overall operating strategy with business goals. Selecting the right level of technology implementation for future needs requires a thorough understanding of the organization’s processes and manufacturing systems. For instance, every project with automation considerations must be assessed for the right level of technology. The improvements it can offer directly link to the organization’s overall strategy: digital transformation. The next five years will see an increase in technology accessibility because of automation platforms and networking connectivity availability, driving companies to make their digital transformation plans ready to implement. As we partner with companies to streamline processes, increase production, and improve manufacturing efficiencies, we create significant opportunities to leverage automation technology for these outcomes. The digital transformation from present to future states in manufacturing environments will be best served by working with partners who can assist with scaling automation solutions while reducing complexity with ease-of-use software and scalable hardware. Our proven approach is to partner closely with our customers and suppliers on automation applications and product developments. Motion’s principles to engineer product designs, develop proofs of concept, and deploy automation builds are keys to the successful digital transformation of manufacturing environments. 

SEPTEMBER 2021

PUBLISHER Innovative Designs & Publishing, Inc. 3245 Freemansburg Avenue, Palmer, PA 18045-7118 Tel: 800-730-5904 or 610-923-0380 Fax: 610-923-0390 • Email: Art@FluidPowerJournal.com www.FluidPowerJournal.com Founders: Paul and Lisa Prass Associate Publisher: Bob McKinney Editor: Michael Degan Technical Editor: Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC - CFPSOS LLC Director of Creative Services: Erica Montes Account Executive: Norma Abrunzo Accounting: Donna Bachman, Sarah Varano Circulation Manager: Andrea Karges INTERNATIONAL FLUID POWER SOCIETY 1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 • Fax: 856-424-9248 Email: AskUs@ifps.org • Web: www.ifps.org 2021 BOARD OF DIRECTORS President: Rocky Phoenix, CFPMMH - Open Loop Energy, Inc. Immediate Past President: Jeff Kenney, CFPMHM, CFPIHM, CFPMHT - Dover Hydraulics South First Vice President: Denis Poirier, Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCC - Eaton Corporation Treasurer: Jeff Hodges, CFPAI/AJPP, CFPMHM - Altec Industries, Inc. Vice President Certification: James O’Halek, CFPAI/AJPP, CFPMIP, CMPMM - The Boeing Company Vice President Marketing: Scott Sardina, PE, CFPAI, CFPHS Waterclock Engineering Vice President Education: Randy Bobbitt, CFPAI, CFPHS Danfoss Power Solutions Vice President Membership: John Bibaeff, PE, CFPAI, CFPE, CFPS DIRECTORS-AT-LARGE Chauntelle Baughman, CFPHS - OneHydraulics, Inc. Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHT Altec Industries, Inc. Randy Bobbitt, CFPAI, CFPHS - Danfoss Power Solutions Steve Bogush, CFPAI/AJPP, CFPHS, CFPIHM - Poclain Hydraulics Cary Boozer, PE, CFPE - Motion Industries, Inc. Lisa DeBenedetto, CFPS - GS Global Resources Daniel Fernandes, CFPECS, CFPS - Sun Hydraulics Brandon Gustafson, PE, CFPE, CFPS, CFPIHT, CFPMHM - Graco, Inc. Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM Open Loop Energy Brian Kenoyer, CFPHS - Five Landis Corp. Jon Rhodes, CFPAI, CFPS, CFPECS - CFC Industrial Training Mohaned Shahin, CFPS - Parker Hannifin Randy Smith, CFPHS - Northrop Grumman Corp. EXECUTIVE DIRECTOR (EX-OFFICIO) Donna Pollander, ACA HONORARY DIRECTORS (EX-OFFICIO) Paul Prass, Fluid Power Journal Liz Rehfus, CFPE, CFPS Robert Sheaf, CFPAI/AJPP, CFC Industrial Training IFPS STAFF Executive Director: Donna Pollander, ACA Communications Director: Adele Kayser Technical Director: Thomas Blansett, CFPS, CFPAI Assistant Director: Stephanie Coleman Certification Coordinator: Kyle Pollander 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, OffHighway 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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VOTE OF CONFIDENCE Choosing the Right Seal for a Hydraulic Pump By Corey Holloway, Sales Manager North America, anyseals, Inc.

n recent months, seal suppliers for distribution and maintenance and repair markets have reported a surge in demand for high-pressure oil seals. This trend is not a coincidence, as these devices are some of the most widely used sealing components in circulation today. The industrial oil-seal market is divided into three primary types: axial, radial, and mechanical. Oil seals, also called shaft seals, are radial lip-type seals specifically designed for retaining lubricants in equipment with rotating, reciprocating, or oscillating shafts. They are found in various applications, from gear engines and construction equipment to rolling mills and wind power generators. Oil seals are in critically short supply as the industry emerges from the manufacturing shutdowns and slowdowns during the pandemic. Although oil seals play an essential role in keeping equipment running for the high-pressure hydraulic pump market, finding a reliable and available supply source can be tricky. Here are some things to consider when choosing the proper seal for a hydraulic pump application.

Seal function Oil seals preserve a lubricating medium within a defined space. They also safeguard the sealed space from dirt, dust, and other potentially damaging contaminants. For example, in a high-pressure hydraulic pump operating environment, the entire sealing system, com-

Figure 1

Typical oil seal designation. prised of the shaft seal, shaft housing, fluid medium, and environment, determines the seal function and level of durability required. Therefore, select an easy-to-replace-and-install product that offers leakage-free sealing in various 6

SEPTEMBER 2021

working environments. This choice should offer low-friction sealing resulting in minimal power loss and heat development. Oil seals are manufactured according to strict quality standards and are under constant control for compliance with common international norms. This works to the advantage of the user, who is assured a certain quality and fit no matter the product's manufacturer. For the sake of continuity, the typical designation of an oil seal includes the type, shaft diameter, outer diameter, height, and material (see figure 1).

Materials A wide range of standard materials and an extended range of special materials are designed to handle most traditional oil-seal applications. Among the standard seal types, NBR is the most widely used material. NBR is characterized by good mechanical properties, high abrasion resistance, high tensile strength, low gas permeability, low compression set, and high resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water, and alcohols. NBR is a copolymer of butadiene and acrylonitrile (ACN). Depending on the application, the content of acrylonitrile can vary between 18% and 50%. Low ACN content improves cold flexibility at the expense of the resistance to oil and fuel. High ACN content enhances the resistance to oil and fuel while reducing the cold flexibility and increasing the compression set. When it comes to oil-seal materials, the following are not recommended for NBR: • Fuels with high aromatic content, such as jet fuel, diesel fuel, high-octane gasoline, and gasoline. • Aromatic hydrocarbons such as methylbenzene, naphthalene, phenanthrene, trinitrotoluene, and o-dihydroxy benzene. • Chlorinated hydrocarbons, such as the pesticide DDT and vinyl chloride, which are manufactured in large quantities to produce polyvinyl chloride and manufactured to produce pesticides, solvents, precursors to various industrial processes, coatings, polymers, and synthetic rubber products. • Nonpolar (lipophilic) solvents that dissolve

nonpolar substances such as oils, fats, and greases. Examples include carbon tetrachloride, benzene, diethyl ether, hexane, and methylene chloride. • HFD fluids, which are water-free, synthetically produced, and fire resistant. • Brake fluid DOT 3 (glycol type); ethylene propylene diene monomer (EPDM) rubber is the preferred material for this application. • O zone; EPDM, FKM, and PTFE are recommended Fluorinated rubber (FKM) is another common material characterized by resistance to ozone, weathering, and aging. FKM materials meet the needs of many applications requiring high thermal and chemical resistance. FKM also offers low gas permeability, making it a suitable material for vacuum applications. FKM is not resistant to glycol-based brake fluids, polar solvents (e.g., acetone), superheated steam, hot water, amines, alkalis, and low-molecular organic acids (e.g., acetic acid). Polytetrafluoroethylene (PTFE) is a fluorinated thermoplastic material with many positive characteristics for sealing material. This includes high thermal and almost infinite chemical resistance. Compared to NBR and FKM materials, PTFE has the lowest friction coefficient, making it most suitable for dynamic applications. Oil seals are composed of PTFE with fillers. PTFE does not, however, have any elastic properties and is typically energized with other complimentary materials such as elastomers or spring steels. The most important materials for seals in this group are: • NBR (acrylic nitrile butadiene). It has good mechanical properties, including abrasion resistance, can be adapted to different tasks by varying the acrylic-nitrile content, and is suitable for temperatures ranging from -20°C to 100°C (-4°F to 212°F). • FKM has high resistance to mineral oil and HFD fluids even at high temperatures up to 200°C (392°F).

Standard and special seal types Operating parameters will generally determine if an application requires a standard or special sealing solution. As a rule of thumb, all standard WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Figure 2 seals are designed for nonpressure applications. When excess pressure develops within the unit to be sealed during operation, check the air vents to see if they are clean, open them if necessary, or use a special seal designed for high-pressure applications. However, pressures up to 0.05 MPa (7 psi) can be controlled by standard types. If the application dictates higher than normal pressures, special types and profiles that use advanced materials or profiles are available. For example, the anyseals type OS-N21 is composed of a sealing lip that is shorter and stiffer than the standard type of seal, preventing increased contact pressure. The OS-N21 anyseals type was designed for pressures up to 1.0 MPa (145 psi). The reinforcing ring is pulled down lower on the shaft diameter to better support the sealing lip. The lower flexibility of the sealing lip requires tighter tolerances with regards to the dynamic runout and offset. Application limits depend on the rotational speed and diameter of the shaft (see figure 3). In conclusion, be diligent when searching for the greatest possible availability of quality standards and special seal types. For quality assurance, seek a supplier that provides certified sealing products that can be identified and traced by lot and material number. 

Standard materials for shaft seals.

Figure 3

Maximum press [bar] for the OS-N21. The figures apply to oil lubrication and favorable heat dissipation conditions.

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SEPTEMBER 2021

ON THE

By Andrew Iddeson, Iddeson, Global Technical Director, Hallite; and Chuck White, Director of Sales and Marketing, Hallite Americas

BORDER

Boundary Lubrication in Cylinder Seals

When it comes to hydraulic cylinder sealing systems, boundary layer lubrication is key to ensuring the longevity of the seals. However, as environmental and emission concerns grow, we should consider actual leakage versus factors in lubrication that contribute to the long-term effectiveness of seals and cylinders. Boundary lubrication is a thin film of fluid that passes under the sealing lip, reducing friction and heat that contributes to wear reduction at the sealing lip. But given environmental and cost concerns, just how much boundary lubrication is acceptable? The answer depends on the application as

well as the individual circumstances in which the seal is operating. For example, long-stroke cylinders used in applications such as cranes require a slightly higher level of boundary lubrication because the sealing elements cover more surface area during the cycle. Cylinders used in general mobile hydraulic applications such as aerial handling equipment require less boundary lubrication due to the cylinder’s size and duty cycle. Finding the right balance of boundary lubrication to promote seal life while meeting the application requirements can be challenging.

Finding the right balance As we’ve said, boundary lubrication is an acceptable amount of fluid that passes under the sealing lip to promote seal longevity. This light film is carried in microscopic peaks and valleys in the surface finish of the dynamic hardware. The sealing lips of the seal conform to these peaks and valleys where the film of oil exists. If the peaks and valleys are too large, excessive boundary lubrication might be allowed to pass by 8

SEPTEMBER 2021

the sealing lip. But insufficient peaks and valleys prevent the formation of the oil film, causing excessive wear. Seal profile also plays a role in balancing boundary lubrication. The correct seal profile at various pressures is key to making sure boundary lubrication is not cut off, which would result in frictional heat and wear at the sealing lip. The industry uses several methods to assess the presence of boundary lubrication. The U.S.-based Society of Automotive Engineers developed the SAR J1176 standard to characterize the visual appearance of the boundary lubrication on rods in hydraulic cylinders. Though the standard is subjective, it provides a benchmark to assess and establish a level of boundary lubrication tolerable in a given application. This standard also provides guidelines to reference when experiencing an unacceptable level of boundary lubrication. Although many national and international standards define methods for testing leakage in fluid power systems, few define acceptable leakage rates, preferring that users define their limits. WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

However, one standard that does apply limits is JIS B 8354. This standard is challenging because it requires a collection of boundary lubrication samples or readings over a set number of cycles or distances, thus requiring longer monitoring periods for assessment. However, because JIS B 8354 defines acceptable leakage levels by classifying the application, it allows the user to confidently develop their own acceptance limits based on a volumetric measure according to cylinder size and end use.

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Boundary lubrication is an acceptable amount of fluid that passes under the sealing lip to promote seal longevity.

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Acceptable is subjective

Despite the two standards, opinions on the acceptable level of boundary lubrication vary and depend on the application. In general, Hallite uses several criteria when assessing acceptable levels of boundary lubrication. When evaluating boundary lubrication using visual standard SAR J1176, levels of 0-2 are acceptable. Since all cylinders exhibit a “drip” of oil, the visual standard sets the boundaries of acceptable lubrication levels as guidance to identify potential concerns and issues with reallife examples per application. In class A leakage acceptance, the JIS 8354 standard is interpreted to show that on a 2-inch (50-mm) rod (as per Hallite testing), an acceptable limit should not exceed 0.05 ml per 100 m traveled. On the test rig, this equates to 20 ml over 50k cycles, the equivalent of 40 Km traveled. An acceptable level of boundary lubrication or leakage is subjective. Though standards exist to provide guidance on recommended levels, the end application plays a huge role in setting the standard. Benchmark testing allows for databased decision-making. Data collection based on real-life field conditions ensures compliance with set leakage standards such as JIS B 8354. It is difficult to offer data on every possible operating combination. However, with new technology in test equipment and methods, assessing seal performance is becoming easier in a lab setting. 

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Shifting Gears

COVER STORY

By Philippe Tottoli, E-mobility Program Marketing Manager, Poclain

Converting to an Electrohydrostatic Transmission L

ow- and zero-emission vehicles are making their way from the roads to the off-highway market driven by regulations and national environmental policies. Hybrid and electric machinery have merged onto both jobsite and field. This pressure has many mobile machinery OEMs looking for ways to electrify their traditional internal-combustion engine (ICE) models. OEMs are faced with a number of challenges. For the end user, electrified machine performance must be identical to the equivalent ICE machine to carry out the same work. Likewise, the electric machine must offer acceptable range and battery lifetime to reach sufficient daily availability for work. The noise level of the electric machine must be significantly lower than the equivalent ICE machine to improve working conditions for the driver and reduce noise pollution in urban environments. Above all, to make economic sense, the electric machine needs to deliver a return on investment comparable to the equivalent ICE machine within a reasonable time frame. Lower operation and maintenance costs help the owner achieve the desired lower total cost of ownership. 10

SEPTEMBER 2021

OEMs are caught between the pressure to design to meet new regulations and increasing demand from end users facing tighter-than-ever schedules and changing rules. For off-highway machine manufacturers caught in this situation, electrohydrostatic technology may be an answer because it does not require a complete machine redesign and allows for a high degree of commonality between the ICE and electrohydrostatic versions. Part and design commonality makes the transition easier for the OEM in terms of production changes, after-sales support, maintenance, as well as end-user training and adoption. By electrifying the hydrostatic system, OEMs are able to deliver the same benefits of timetested, reliable cam-lobe hydrostatic technology without the emissions. An electrohydrostatic transmission is a system

made of hydraulic, electric, power electronics, and electronic components combined with control software. The hydraulic components are typically hydraulic motors, drive pumps, and valves. The electric components are electric motors and batteries, which can include different technologies. The power electronics components are DC/AC inverters, an onboard charger, and a DC/DC converter. The electronic components include the electronic control unit, sensors, display, connectors, and accessories.

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Electrifying an off-road mobile machine with an electrohydrostatic transmission can be broken down into a few steps: machine inspection, input data collection, transmission presizing, realization and optimization, and field monitoring. To illustrate the process, take the example of a mini wheel loader recently electrified by Poclain Hydraulics’ electromobility team. The mini loader, with an operational weight of around 1.8 tons, was originally equipped with a diesel engine and a hydrostatic transmission based on wheel-motors, hydraulic boom, and tools.

Machine inspection The first step the team took after receiving the mini wheel loader and before starting any electrification activity was to perform a complete machine inspection and verify proper function. Once this was completed, the machine underwent a full battery of performance tests, including an inventory, to characterize all the hydraulic systems in their original configuration. The objective was to build a machine model for system simulation software to simulate the operation of the hydraulic systems. The team also carried out acoustic tests in the original configuration to measure the difference in sound level between the diesel and electrified machines.

Input data collection The next phase was to gather the input data needed to design the transmission: machine duty cycle, machine mission profile, and geometrical and weight constraints. This phase of data collection and analysis was part of a connected engineering campaign. Confirmation of real-life duty cycles. The team sent the mini wheel loader equipped with a connectivity box into the field to perform a series of operations matching typical machine usage. The connectivity box was connected to the WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

machine’s CAN bus to upload the data directly to the cloud. The team put the machine through a number of work scenarios to attain a large enough data sample. Work included traveling at different speeds, empty and loaded, on flat surfaces as well as uphill and downhill; moving the bucket up and down, and filling and emptying the bucket, among other operations. Throughout these operations, the objective of the data collection was to confirm the machine’s duty cycle for the transmission and auxiliary functions. Obtaining in-depth knowledge of the duty cycle is a key step in the electrification process and has a major impact on the correct sizing of transmission components and power distribution to auxiliaries. Defining the mission profile. Machine mission profile definition has a major impact on the required amount of energy embedded in the batteries and its distribution between transmission and tools. For the electrification of the mini wheel loader, the team targeted a machine range of a complete working day with charging in the middle of the day. In typical use, the machine works intermittently during the day. To obtain the most realistic mission profile possible, the profile integrated operations with several of the most frequently used tools. Geometrical and weight constraints. After validating the duty cycle and defining the mission profile, the team needed to characterize the machine geometry, weight distribution, and center of gravity.

envelope is given by the curve of the machine tractive effort as a function of the machine speed. From this curve, the performance envelope of the different components of the transmission were determined. This is actually the process of presizing the transmission components. Define and simulate architecture. The team designed several possible system architectures to respond to the transmission requirements and the power distribution to auxiliaries. These architectures included the main hydraulics, and electric and power electronics components. The team performed simulations for each of the defined architectures to verify whether their performance matched the requirements of the transmission and the power distribution to auxiliaries. Simulation is a very powerful tool that makes it possible to verify the overall performance of a system quickly to prevalidate an architecture without having to carry out tests on a real machine. Select and presize electric and hydraulic components. Once the team defined the system architectures, it was time to drill down to the component level. Based on the input data and simulation results, they selected and presized the different components of the architectures. Components included a drive pump, closed loop circuit valves, hydraulic motors, inverters, e-motors, a DC/DC converter, an onboard charger, an electronic control unit, a display, sensors, and connectors. At this point in the process, adjustments or component changes are still possible. Selecting a final architecture by simulation. Among the simulations of the different system architectures, the team selected the one that best matched the system requirements based on the energy efficiency criteria, compatibility with economic constraints, and available space. (Continued on page 12)

Transmission presizing After gathering the input data, the next phase was presizing the transmission. Performance envelope. The first stage involved characterizing the performance envelope of the machine in the four quadrants. The performance SEPTEMBER 2021

(Continued from page 11)

Realization and optimization After presizing the components, the next phase was practical realization, including transmission optimization and auxiliary power distribution. Integration study. Once the architecture was defined and the dimensions of every component were known, it was possible to proceed with a detailed integration study of the system within the machine. In the case of the mini wheel loader, once the diesel engine, the fuel tank, the radiator, cabling, and several other components were removed, the team defined the available space for the electrohydrostatic drivetrain using the existing machine geometry. When needed, they used a 3D scanner to digitize the machine geometry and environment. Then they defined the arrangement of the components to keep the weight distribution and center of

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SEPTEMBER 2021

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gravity within the limits of the machine’s operational weight. Control strategies and functional safety analysis. Based on the customer and machine requirements, the team specifies system and control strategies for all machine life cases. In this case, they performed a safety analysis to ensure the safety functions of the system based on generic customer and machine requirements. Then they programmed the software of the electrohydrostatic transmission before uploading it in the transmission electronic control unit. Integrating the transmission. Next, the team mounted and assembled the electrohydraulic system into the mini wheel loader. Then they uploaded the vehicle control and e-hydrostatic transmission-embedded software into the electronic control unit. Machine commissioning. The last stage of electrification was the commissioning of the mini wheel loader. During this stage, the team checked, inspected, and tested every major component of the transmission and the power distribution to the auxiliaries at the individual component level and the integrated function level. The final result was a perfectly functioning and safe zeroemission electrohydraulic machine.

Field monitoring Generally, the machine is fitted with a log box connected to the CAN bus that collects machine performance data and use. This is a powerful way to monitor performance under real customer operating conditions. We can also refine duty cycle and mission profile characterization to improve machine design and optimize transmission sizing for the next machine release. 

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

What IFPS Means to Me

CELEBRATING 60 YEARS

IFPS IS AN industry-recognized organization that offers accredited certifications that have both industry skill level recognition and are challenging. Certification gives not only recognition of achievement but boosts self-confidence in being a knowledgeable and experienced person working within the industry. IFPS not only focuses on industry learning but safety as well, which is critical in the fluid power industry. IFPS certification has helped me grow as an individual, provided recognition within the fluid power industry, and has helped me gain the confidence to pursue a career and job I enjoy and in which I find significant meaning. How I See IFPS Viewed in Industry I see IFPS recognized as a third-party certification organization that is recognized both locally and globally, focused on safety, knowledge, and skill level. IFPS certification is not just a college or entry-level certification but is recognized as having industry value, representing a certain skill level through both the written and job performance tests. IFPS certification is not just a completion of a course; it has substantial meaning behind being certified. For those studying to obtain certification, it is not just about the certification title, but the knowledge and safety learned through the studying process that comes even if the certification is not obtained. The certification process is challenging, so do not be discouraged. BJ Wagner, CFPHS/CFPMMH/CFPAI/CFPAJPPCC/CFPAJPP Staff Test Engineer, Subsystem Testing, Manitowoc Cranes Product Verification Center IFPS member since Jan. 1, 2004

IFPS Offers Math Booklet

A RECENT STUDY found that more than 68% of participants cited lack of confidence as the biggest stumbling block to their ability to succeed in math. If math is a stumbling block for you when preparing for certification test success, the Fluid Power Math for Certification booklet may increase your confidence level. The booklet lays the foundation for calculating complex formulas found in certification tests. The booklet can be used during a test. IFPS Members $12.85 | Retail $16.00 To purchase, visit www.ifps.org/ fluid-power-math-for-certification.

MARVEL FILTER’S updated website with catalog, highlights Marvel’s vast offering of fluid filtration products and components. We keep an extensive stock of filters for immediate shipment worldwide. Marvel’s housing assemblies are made to order with many configurations available to accommodate a variety of customer applications for various industries. All our products are hand made in the USA since 1943.

MARVEL FILTERS LLC - ADDISON IL. 60101 T: 708.343.4090 F. 708.343.4159 | WWW.MARVELFILTERS.COM | E: SALES@MARVELFILTERS.COM WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

SEPTEMBER 2021

I F P S U P D AT E

Upcoming Workshops

IFPS IS OFFERING workshops for Accredited Instructor (AI) and Authorized Job Performance Proctor (AJPP) certifications on Oct. 26-28 in Cherry Hill, New Jersey. The AI workshop is a one- or two-day program to acquaint you with the IFPS certification program and to assess your instructional abilities. AIs have extensive backgrounds and instructional experience in the fluid power industry, and they hold various certifications. IFPS AJPPs are certified to proctor job performance tests and hold the certifications they plan to proctor. The registration deadline is Oct. 5. To register, call (856) 424-8998 or visit www.ifps.org.

CELEBRATING 60 YEARS

June 2021

Newly Certified Professionals SPECIALIST holds HS and PS Neil Scott CONDUCTOR & CONNECTOR Erik Russell, The Boeing Company Orlan Westcott, The Boeing Company Ty White Sean Wynne, The Boeing Company Kelly Korzenborn, Fluid Power Services Tyler Crabb, The Boeing Company ELECTRICONIC CONTROLS SPECIALIST Daniel Libby, The Boeing Company HYDRAULIC SPECIALIST Alex Hildebrand, GCC Daniel Flick, MacDon Daniel Simpson, Quantum Machine Keegan Jost, GCC Spencer Savage, GCC Benjamin Steiner, Fluid Power Solutions INDUSTRIAL HYDRAULIC MECHANIC Christopher Truax, USAF Survival Miles Conn, Controlled Fluids Inc. MOBILE HYDRAULIC MECHANIC David Veir, LCRA John Wenz, Altec Industries Inc. Michael Campbell, LCRA Oscar Martinez, Florida Power & Light Co. Gary Rice, Altec Industries Inc. Tim McNeal, Florida Power & Light Co. PNEUMATIC MECHANIC Christopher Truax, USAF Survival PNEUMATIC SPECIALIST Neil Scott

SEPTEMBER 2021

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

IFPS 2021 Annual Meeting

THE INTERNATIONAL FLUID Power Society annual meeting takes place Oct. 5-7 at the Whitney Peak Hotel in Reno, Nevada, with a pre-meeting technical workshop scheduled for Oct. 4. The workshop, Understanding and Calculating Heat Loss for Various Types of Circuits, is presented by Ernie Parker, CFPAI, CFPE, of Hydra Tech Inc. Parker explores how to calculate heat loss for various circuits such as meter in, meter out, bleed off, pressure compensated, load sensing, flow controls, counterbalance, closed loop hydrostatic, line sizing, and standby systems. Participants learn how to use proper placement of components to make the most efficient circuits and systems without adding cost. Simple and efficient circuits will also be discussed. Participants should bring a TI-30XA or purchase one with their registration.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

CELEBRATING 60 YEARS

SCHEDULE OF EVENTS Monday, Oct. 4 8:00 AM - 2:00 PM..............................................................................................Technical Workshop Tuesday, Oct. 5 8:00 AM - 9:00 AM..............................................................Strategic Planning Committee Meeting 9:00 AM - 11:00 AM..........................................................................Education Committee Meeting 11:00 AM - 12:00 PM................................................................... Membership Committee Meeting 12:00 PM - 12:30 PM................................................................................................... Hosted Lunch 12:30 PM - 1:30 AM......................................................... Membership Committee Meeting, cont'd 1:45 PM - 5:00 PM........................................................................Tesla Gigafactory Tour (tentative) 6:00 PM - 9:00 PM.......................................................................... Welcome Reception & Jeopardy Wednesday, Oct. 6 8:00 AM - 12:00 AM...................................................................... Certification Committee Meeting 12:00 PM - 1:00 PM..................................................................................................... Hosted Lunch 1:00 PM - 3:30 PM.............................................................................Marketing Committee Meeting 6:00 PM - 9:30 PM...............................................Annual Dinner & Hall of Fame Awards Ceremony Thursday, Oct. 7 8:00 AM - 9:30 AM............................................................................... Finance Committee Meeting 9:30 AM - 11:00 AM................................................................................Board of Directors Meeting 11:00 AM - 12:00 PM..........................................Strategic Planning Committee Meeting Follow Up 12:00 PM - 1:00 PM.......................................................................................... Lunch (on your own) 1:30 PM - 9:00 PM................................................. Lake Cruise & Dinner at Lake Tahoe (tentative)

SEPTEMBER 2021

I F P S U P D AT E

Certification Testing 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: October 2021 Tuesday 10/5 • Thursday 10/28 November 2021 Tuesday 11/2 • Thursday 11/18 December 2021 Tuesday 12/7 • Thursday 12/16 January 2022 Tuesday 1/11 • Thursday 1/27

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

SEPTEMBER 2021

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

CELEBRATING 60 YEARS

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

SOUTH CAROLINA Beaufort, SC Charleston, SC Columbia, SC Conway, SC Graniteville, SC Greenville, SC Greenwood, SC Orangeburg, SC Rock Hill, SC Spartanburg, SC TENNESSEE Blountville, TN Clarksville, TN Collegedale, TN Gallatin, TN Johnson City, TN Knoxville, TN Memphis, TN Morristown, TN Murfreesboro, TN Nashville, TN TEXAS Abilene, TX Arlington, TX Austin, TX Beaumont, TX Brownsville, TX Commerce, TX Corpus Christi, TX Dallas, TX Denison, TX El Paso, TX Houston, TX Huntsville, TX Laredo, TX Lubbock, TX Lufkin, TX Mesquite, TX San Antonio, TX Victoria, TX Waxahachie, TX Weatherford, TX Wichita Falls, TX UTAH Cedar City, UT Kaysville, UT Logan, UT Ogden, UT Orem, UT Salt Lake City, UT VIRGINIA Daleville, VA Fredericksburg, VA Lynchburg, VA Manassas, VA Norfolk, VA Roanoke, VA Salem, VA Staunton, VA Suffolk, VA Virginia Beach, VA Wytheville, VA WASHINGTON Auburn, WA Bellingham, WA Bremerton, WA Ellensburg, WA Ephrata, WA Olympia, WA Pasco, WA Rockingham, WA Seattle, WA Shoreline, WA Spokane, WA WEST VIRGINIA Ona, WV WISCONSIN La Crosse, WI Milwaukee, WI Mukwonago, WI

WYOMING Casper, WY Laramie, WY Torrington, WY CANADA ALBERTA Calgary, AB Edmonton, AB Fort McMurray, AB Lethbridge, AB Lloydminster, AB Olds, AB Red Deer, AB BRITISH COLUMBIA Abbotsford, BC Burnaby, BC Castlegar, BC Delta, BC Kamloops, BC Nanaimo, BC Prince George, BC Richmond, BC Surrey, BC Vancouver, BC Victoria, BC MANITOBA Brandon, MB Winnipeg, MB NEW BRUNSWICK Bathurst, NB Moncton, NB NEWFOUNDLAND AND LABRADOR St. John’s, NL NOVA SCOTIA Halifax, NS ONTARIO Brockville, ON Hamilton, ON London, ON Milton, ON Mississauga, ON Niagara-on-the-Lake, ON North Bay, ON North York, ON Ottawa, ON Toronto, ON Welland, ON Windsor, ON QUEBEC Côte Saint-Luc, QB Montreal, QB SASKATCHEWAN Melfort, SK Moose Jaw, SK Nipawin, SK Prince Albert, SK Saskatoon, SK YUKON TERRITORY Whitehorse, YU UNITED KINGDOM Elgin, UK GHAZNI Kingdom of Bahrain, GHA Thomasville, GHA EGYPT Cairo, EG JORDAN Amman, JOR NEW ZEALAND Taradale, NZ

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

AVAILABLE IFPS CERTIFICATIONS CFPAI Certified Fluid Power Accredited Instructor CFPAJPP Certified Fluid Power Authorized Job Performance Proctor CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor CFPE Certified Fluid Power Engineer CFPS Certified Fluid Power Specialist (Must Obtain CFPHS & CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist CFPPS Certified Fluid Power Pneumatic Specialist CFPECS Certified Fluid Power Electronic Controls Specialist CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT) CFPIHT Certified Fluid Power Industrial Hydraulic Technician CFPMHT Certified Fluid Power Mobile Hydraulic Technician CFPPT Certified Fluid Power Pneumatic Technician CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM) CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic CFPPM Certified Fluid Power Pneumatic Mechanic CFPMIH Certified Fluid Power Master of Industrial Hydraulics (Must Obtain CFPIHM, CFPIHT, & CFPCC) CFPMMH Certified Fluid Power Master of Mobile Hydraulics (Must Obtain CFPMHM, CFPMHT, & CFPCC) CFPMIP Certified Fluid Power Master of Industrial Pneumatics (Must Obtain CFPPM, CFPPT, & CFPCC) CFPCC Certified Fluid Power Connector & Conductor CFPSD Fluid Power System Designer CFPMEC (In Development) Mobile Electronic Controls

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 CERTIFICATION REVIEW Call for dates. Phone: 856-816-3362. ELECTRONIC CONTROLS CERTIFICATION REVIEW Call for dates. Phone: 856-816-3362. CONNECTOR & CONDUCTOR CERTIFICATION REVIEW November 16-17, 2021 - CFC Industrial Training, Fairfield, Ohio | Written and JP test: November 18, 2021 MOBILE HYDRAULIC MECHANIC CERTIFICATION REVIEW Online Mobile Hydraulic Mechanic Certification Review (for written test) offered through info@cfcindustrialtraining.com. This course takes you through all chapters of the MHM Study Manual (6.5 hours) and every outcome to prepare you for the written MHM test. Members receive 20% off. (Test fees are additional - separate registration required.) Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio INDUSTRIAL HYDRAULIC MECHANIC CERTIFICATION Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio INDUSTRIAL HYDRAULIC TECHNICIAN CERTIFICATION REVIEW TRAINING Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio MOBILE HYDRAULIC TECHNICIAN CERTIFICATION REVIEW TRAINING Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio PNEUMATIC TECHNICIAN and PNEUMATIC MECHANIC CERTIFICATION REVIEW TRAINING Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio JOB PERFORMANCE TRAINING Online Job Performance Review - CFC Industrial Training offers online JP Reviews, which includes stations 1-6 of the IFPS mechanic and technician job performance tests. Members may e-mail askus@ifps.org for a 20% coupon code off the list price or get the code in our Members Only area for the entire IFPS Job Performance Review; test not included. LIVE DISTANCE LEARNING JOB PERFORMANCE STATION REVIEW E-mail info@cfcindustrialtraining.com for information.

CFPIEC (In Development) Industrial Electronic Controls

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

SEPTEMBER 2021

FLUID POWER EXHIBITORS

UTILITY EXPO

OPENS IN LOUISVILLE The Utility Expo, formerly known as the International Construction & Utility Equipment Exposition, kicks off Tuesday, Sept. 28 at the Kentucky Exposition Center in Louisville. Covering more than 30 acres, the three-day show is the largest event for utility professionals and construction contractors to glimpse the latest industry technologies, innovations, and trends. The show announced some guidelines to protect against COVID. Masks will not be required for vaccinated show participants, and social distancing requirements have been removed. Hand sanitizer will be available throughout the show. The aisles in the indoor spaces will be wider than in previous years.  The Utility Expo website said organizers will “implement new guidelines and protocols as required at the time of the show.”  A number of educational sessions are planned, including field classrooms on the show floor. The interactive, walking classrooms are 90-minute

sessions led by industry experts. Attendees can choose from 28 sessions on topics such as fleet management, fleet accessories, safety, vegetation management, and aerial devices. Attendees can also purchase on-demand materials, choosing from more than 60 sessions that they can access starting Oct. 1 and are available for a year. Topics include safety, business best practices, pipeline solutions, equipment technology, workforce development, underground solutions, drones, DOT updates, and aerial solutions. A water pavilion education program organized by Storm Water Solutions and Water & Wastes Digest includes live demonstrations led by industry experts. Topics include asset management, best management practices, digitization and automation, energy efficiency, erosion and sediment control, and funding.  For more information, visit www.theutility expo.com/.

Adaptall...............................................B1020 ASA Hydraulik of America....................A1232 Barko Hydraulics....................................E629 Bailey International..............................A1056 Bondioli & Pavesi.................................B1034 Bucher Hydraulics................................A1430 Casappa Corp......................................A1405 Cervis..................................................A1316 Continental Hydraulics.........................A1541 COXREELS..................................... A1758 Dinamic Oil North America.................. N2132 Dixon Quick Couplings.........................B1834 Doering......................................... B1122 Dynamic Fluid Components.................A1329 Dynatect Manufacturing.......................A1555 Eaton Corp...........................................A1411 EZ Trac............................................... N1420 GS Global Resources............................A1556 Hannay Reels.......................................B1216 Harrison Hydra-Gen.............................B1423 HAWE Hydraulik............................ A1520 HBC-radiomatic.................................. N1426 HED.....................................................A1425 HYDAC/Schroeder................................A1523 Hydreco...............................................A1541 IC Fluid Power.....................................B1221 IMO USA............................................. N1727 Joral....................................................A1226 MP Filtri........................................ B1943 Muncie Power Products.......................B1522 North American Hydraulics...................B1028 OEM Controls & Data Delivery..............A1546 OTTO Controls.....................................B1716 Parker Hannifin....................................A1830 Permco................................................B1334 Piranha Hose Products (Kuriyama)...... N2853 Polygon Composites Technology..........A1243 Reelcraft Industries............................. N2641 Salami SpA..........................................A1050 Stucchi SRL.........................................A1460 Suco Technologies...............................B1823 Sun Hydraulics.....................................A1504 Sunfab Hydraulics........................ B1241 Texas Hydraulics..................................A1704 The Lee Company................................B2013 Thomas Magnete USA.........................A1431 Tuson Corp..........................................A1642 Vanair Manufacturing...........................E1013 VIS Hydraulics......................................B1732 WIKA Mobile Control........................... N1232 Advertisers are in bold

SPECIAL EVENTS THE JOBSITE When: Tuesday to Thursday during show hours Where: Just outside Broadbent Arena Consisting of 80,000 square feet of outdoor space dedicated to creating an actual construction site, the Jobsite promotes a positive, meeting-in-the-middle approach to solving damage-prevention issues.

THE ROUNDTABLE When: Tuesday and Wednesday, 10 a.m. to 2 p.m. Where: Broadbent Arena 18

SEPTEMBER 2021

A series of four-person unscripted conversations focusing on the risk of excavation damage to underground utilities and discussing strategies to protect workers and the public from excavation-related accidents. Sessions are free. Registration is not required.

FREE CONCERT: Rocking Wednesday at Fourth Street Live! When: Wednesday, 7 p.m. to 11 p.m. Where: Fourth Street Live! Music by The Crashers at Louisville’s hottest entertainment and dining destination, Fourth Street Live!

BOURBON, BEER & BITES NETWORKING RECEPTION When: Thursday, 2 p.m. to 3:30 p.m. Where: North Lobby Join industry peers and sample unique local flavors of Louisville. Sample bourbon from distilleries located in Kentucky. Local breweries will also be on site with some of their most popular beers. Kentucky-inspired cuisine available as well.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Booth # B-1122

THE NEW SAP SAE OUR LIGHT-WEIGHT PUMP SERIES Developed to meet the market requirements for reduced weight in combination with demanding operation.

ION NEW GENERATPS SUNFAB PUM

Visit us at 1241 Utility Expo #B Sunfab Hydraulics Inc. +1 (704) 509-6435 sunfab-us@sunfab.com www.sunfab.com/us

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

MADE IN SWEDEN Member of the Association of Equipment Manufacturers

SEPTEMBER 2021

SPECIAL AD SECTION

COMPONENT SHOWCASE T-TYPES AND SPIN ONS FOR HYDRAULIC USE

3B Filters, Inc. Email: sales@3bfilters.com Website: 3bfilters.com

Keep your system clean and functioning with hydraulic filters from 3B Filters Inc. We offer a variety of filter configurations to fit your system’s needs. Filters provide needed protection from contaminants. Regular maintenance involving filter cleaning and replacement is key to limit downtime and save money on maintenance. Replacement elements are available for all our filter assemblies. We also offer interchanges for OEMs. Contact us to keep your system running clean and contaminant free!

T-TYPE FILTERS HIGHLIGHTS • Pre-filter or Final-filter • Mounted in any direction • Easy access to replace filter element • 4 Series Options • Up to 40,000 PSI • Flow Rates from 1.5 GPM to 50 GPM •S tainless Steel, Aluminum, Brass, Monel & Custom Construction

SPIN ON FILTERS – Most Popular in Fluid Power HIGHLIGHTS • Low pressure • High Flow • Easy element replacement • 2 Series Options • Up to 200 PSI • Flow Rates up to 70 GPM luminum and Stainless Steel Construction •A

GOT PUMPS? GET DRIVES!

ss Best-in-Cla globally ov Pr ider and the Top nge of over a ra ve Pump Dri . ns configuratio

Stiebel Pump Drives allow Engineers to create space saving layouts by mounting multiple pumps in a single plane. Our ratio ranges also allow for use of smaller, lower cost or cost effective pumps operating at higher speeds to deliver hydraulics where and when they are needed. Highly responsive, with your application specifications, Stiebel can turn around quotes and application files (drawings and CAD files in pdf, stp, dxf …) within an average of 24-72 hours. Globally, Stiebel is Best-in-Class and the top provider over a range of pump drive configurations. Work with us, and we’ll show you how well your Design, Builds and Logistics can be supported when it comes to Pump Drives. FIND US ON

864-286-7152 office info@stiebeldrivetechnology.com www.StiebelDriveTechnology.com 20

SEPTEMBER 2021

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SPECIAL AD SECTION

COMPONENT SHOWCASE IMAGINE…A 90% REDUCTION IN RESERVOIR SIZE AND WEIGHT. Reduction in fluid volume, space claim and weight can save hundreds of dollars per year. The Cyclone Hydraulic Reservoir represents new thinking in the way that reservoirs are designed and configured for both mobile and industrial applications. This modern design significantly reduces the amount of weight, space, and oil required in a hydraulic system.

HITACHI FLANGELOCK AND CAP toKITS AVAILABLE Hydraulic systems are all around us; from the garbage truck in your neighborhood, the amusement rides at the local festival, to the construction equipment you see working on Part number Part description highways. The lifeblood of a hydraulic system is oil and these machines carry a significant SWINGFLGLCK2062 Swing hose FlangeLock amount of it.

Applicable machines TM

Number of parts

Weight (kg) TM

kit

EX3600, EX5600, EX8000

SWINGCAP2062 Swing circuit cap kit Cyclone Hydraulics is changing the way we design, configure, and use hydraulic oil reservoirs. A traditional hydraulic reservoir should contain 1 to 5 times the amount of oil that the TRAVELFLGLCK2462 Travelpump hose FlangeLock kit can produce in one minute. A 20 gallon per minute (GPM) system may need 20-100 gallons TRAVELCAP2462 Travel circuit cap kit of oil and weigh 250-1200 pounds (including oil) and require a significant space claim. A Front attachment Cyclone Hydraulic Reservoir can reduce the amount of oil necessary in a hydraulic system by FRONTATTFLGLCK326162 FlangeLock kit 10-20 times! A 20 GPM system will only need 2 gallons of oil and weigh as little as 30 pounds FRONTATTCAP326162 Front attachment cap kit (including oil) with minimum space claim.

EX3600, EX5600, EX8000

16 x 2062 - cap

4.5

EX3600, EX5600, EX8000

16 x 2462U - purple FlangeLockTM

7.7

EX3600, EX5600, EX8000

16 x 2462 - cap

6.4

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

EX3600, EX5600, EX8000

20 x 3262U - black FlangeLockTM

9.9

EX3600, EX5600, EX8000

20 x 3262 - cap

11.3

™

BOOMARCHFLGLCK3262

Boom arch hose FlangeLockTM kit

(800) 953-9024 | MECSolutions@sunsrce.com BOOMARCHCAP3262 Boom arch hose cap kit www.Cyclonehydraulics.com and www.sun-source.com

16 x 2062U - red FlangeLock

6.7

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 & make CAT-Style hydraulic without Constructed from lightweight aluminum. kits sure no matter whichflanges component routine tools. maintenance is being performed on, you will always have the exact Easyofon, easy off.™*Offers to hydraulic system and environmental number FlangeLocks and capsatoleakproof help reducesolution contamination. cleanliness. FlangeLock™ Tools stop the mess! ™ *Note: FlangeLocks are not to be used under pressure

SAVE SAVE SAVE SAVE

TIME MONEY LABOR OIL

• No tools required • One hand installation Call you local Hitachi Muswellbrook representative or • No expensive hardware needed • Eliminate hydraulic oil spills & clean up onhoses 02 6541 6300 for installation more information. • No more the rags branch stuffed into • Quick & ease of usage • No more messy plastic caps • Safe for personnel & environment • The ultimate contamination control tool • Industry acclaimed

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

SEPTEMBER 2021

TEST YOUR SKILLS

THE FUNCTION OF FLUIDS T

he word "fluid" refers to something that flows and can describe a gas or a liquid. A hydraulic system is the transmission of power by means of a liquid. While hydraulic fluid's most important function is power transmission, it has four other important functions: lubrication, sealing, contaminant removal, and heat transfer. A hydraulic system has components with close moving parts. The hydraulic fluid is used to lubricate the rotating or sliding surfaces. The fluid also functions as a seal within the components to minimize internal leakage. Microscopic particles are continually being generated within the system

Figure 1: Function of fluid in a hydraulic system.

for cold start-up and then a minimum viscosity that must be maintained during normal operation. Lubricity is the ability to minimize wear by creating a film between two mating surfaces, which allows them to slide past each other without touching. For hydraulic fluid to perform the lubricating, sealing, and heat transfer functions, both viscosity and lubricity must be considered. A fluid with good lubricity but low viscosity may not be able to establish a sufficient lubricating film between mating parts or provide sealing for sliding spools. Flash point and fire point. A fluid's flash point is the temperature at which the fluid will ignite but not remain burning. The fire point of a fluid is the temperature at which the fluid continues to burn after ignited. Additives. The function of hydraulic fluids can be improved with the use of additives. For example, nearly all hydraulic fluids have viscosities that change with temperature. Some additives produce multiple viscosity fluids that reduce the impact of temperature change. A viscosity index (VI) assigns a number to these fluids, indicating the relative change in viscosity with changes in temperature. Fluids with higher VI numbers have lower viscosity changes with temperature.

as surfaces move past each other. If these particles are not removed, they will generate even more particles. The hydraulic fluid carries these particles away to the filtration system for removal. Heat that is generated by the inefficiencies of the system must also be carried away to where it can be removed (see figure 1).

Properties and characteristics

Compressibility. There is a minimal change in volume as hydraulic fluid is pressurized. This change in volume varies with the type of hydraulic fluid and is based on something called the bulk modulus or stiffness of the fluid. For a typical petroleum-based fluid, there would be about a 0.4% decrease in volume at a pressure of 7 MPa (1,000 psi). Compressed hydraulic fluid is Compressing hydraulic fluid. much like a compressed spring. It is stored energy that can be suddenly released. Be sure pressure of any hydraulic fluid is released or isolated before any work is done on the system. Viscosity and lubricity. These are two very different but important characteristics of hydraulic fluid.Viscosity is the resistance to flow at a given temperature. As the temperature of the fluid rises, the viscosity decreases. As the temperature lowers, the viscosity increases. In a hydraulic system, the most important fluid property is viscosity. Manufacturers publish the minimum and maximum viscosity range that must be maintained during operation, and information is typically presented as a maximum viscosity

SEPTEMBER 2021

Magnified view of sliding surfaces with anti-wear additives.

Anti-wear. Higher pressures need tighter tolerances to prevent excessive internal leakage. Tighter tolerances reduce the space for the lubricating film provided by the fluid. Anti-wear additives can be added to the fluid that tend to fill the irregularities on the mating surfaces and allow a thinner lubricating film to keep the surfaces apart. Rust and corrosion inhibitors. These additives prevent moisture and air from forming iron oxide particles (rust) by putting a coating on metal surfaces. Antioxidants. Oxidation is a general term describing a chemical process where an atom gives up an electron. Rust is a form of oxidation, but it is not the only form. The presence of moisture or air, both of which contain oxygen, can cause the deterioration of components, including the hydraulic fluid itself, especially when accompanied by high temperature. The addition of antioxidants by the refiners is meant to minimize this damage. Demulsifier. This additive helps the hydraulic fluid separate water. With many hydraulic fluids, the water then settles at the bottom of the reservoir, where it can be periodically drained away.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Detergents. These are added to the fluid when it is desired to prevent buildup of sludge and varnish deposits, as they tend to hold contaminants in suspension. They also have excellent emulsifying ability, and that can be a problem because any water won't be separated out of the fluid. This may be beneficial in some mobile applications, but caution should be used, as detergents may also cause foaming in the fluid as well, which is detrimental to the system operation. Anti-foaming: These additives reduce the fluid's ability to retain air, which then reduces the potential for foaming to occur.

Types of hydraulic fluid Hydraulic fluid is formulated to meet specific applications. There are formulations and additives that help the fluid meet the requirements of the system and the environment. There is no "one fluid fits all" formula. Consequently, it is never a good idea to mix or switch hydraulic fluids without the equipment manufacturer's consent. The makers of hydraulic pumps and motors often specify the characteristics of the fluid their products must have to remain under warranty.

Oil-in-water emulsions (HFB). ISO classification HFB calls for approximately 40% water. Due to the water content, they are somewhat fire resistant. However, the oil content is a higher percentage (60%) than the water, so there is a possibility for the fluid to burn if it is sprayed toward open flame or if the water is evaporated away. Water glycols (HFC). ISO classification HFC water glycols offer excellent fire resistance. Generally, they fall in a 60% HFC glycol (glycerin, alcohol, and thickeners) 40% water or 65% glycol 35% water. Glycol is in the antifreeze family and therefore can be utilized at cold temperatures. High operating temperatures (above 130ºF) may cause evaporation of the water, which would cause the glycol to become more viscous. Synthetic fluids (HFD). HFD synthetic fluids are man-made fluids. They are more expensive than petroleum-based fluids, and some have less lubricity abilities and less metal-wetting ability. Generally, because of their blends, synthetic fluids may be more harmful to the environment and to individuals who handle the fluid. ISO classification HFD of synthetic fluids are fire resistant. Synthetic fluids typically encountered are phosphate esters and polyol esters. Military-spec synthetic fluids are MILPRF-83282D. Seal compatibility is a big concern with synthetic fluids. Biodegradable. These fluids are typically nontoxic and easily disperse in the environment.

SEAL MATERIAL

Petroleum (hydrocarbon)-based. These are the most common hydraulic fluids. Petroleum-based fluids have excellent lubricating properties, acceptable viscosities, and if properly maintained, have an excellent life expectancy. Petroleum oil dissipates heat reasonably well under proper operating conditions and is compatible with most sealing materials. If the temperature is held below 60°C (140°F) and the oil is kept free of contaminants, petroleum-based fluids are long lasting and stable. For every 10°C (18°F) rise in temperature above 60°C (140°F) accelerated oxidation will begin to occur, which may result in cutting the usable life of the fluid in half. High water-based (HFA). ISO classification HFA is 95% water, which means it is highly fire resistant. However, it will lack the lubricity factor of a petroleum-based fluid.

Some are formed by using readily renewable bio-based vegetable oils such as rapeseed and sunflower. They are then blended with special additives to give them the properties required in hydraulic system operation. They are very sensitive to heat and must be operated within a recommended temperature range. Some synthetic fluids are also engineered to be biodegradable. Seal compatibility. It is very important that the seals within all components in a hydraulic system be compatible with the fluid being used. As shown in the table in figure 2, different materials used for seals have different advantages and disadvantages depending on the type of fluid selected. Some fluids with very good lubricity and viscosity characteristics may prove caustic to the material in pumps, actuators, or valves, especially when hot. Chemical compatibility is an important consideration when choosing the hydraulic fluid for the system. The inner tube of the hydraulic hose must not react chemically with the fluid. The same can be said of the seals within the components. Water can adversely affect the seals, so special seals must be applied to use a high water content-based fluid. Water glycol fluids attack zinc, cadmium, and aluminum, so these elements must not be located anywhere in the circuit to prevent contamination and deterioration of the hydraulic systems. 

COMPATIBLE FLUIDS

TEMPERATURE RANGE

Metallic piston rings

Petroleum-based and synthetic fluids, phosphate esters - for high-pressure and severe conditions.

Low to 500°F (260°C)

Leather

Petroleum-based and synthetic fluids, phosphate esters - for high pressure and severe conditions.

-65°F to 225°F -54°C to 107°C

Neoprene rubber

General-purpose industrial use, Freon 12; weather and salt-water resistant.

-65°F to 300°F -54°C to 149°C

Nitrile rubber (Buna N)

Petroleum-based fluids and mineral oils - used for some rotating seals, extrusion resistant.

-65°F to 225°F -54°C to 107°C

Silicone rubber

Water and petroleum-based fluids, phosphate esters; low tensile strength and tear resistance, recommended for static seals only.

-80°F to 450°F -62°C to 232°C

Fluoro-elastomers (Viton and Fluorel)

Petroleum-based, synthetic, diester, silicate ester, and halogenated hydrocarbon fluids - for high-temperature applications.

-20°F to 400°F -29°C to 204°C

Polyurethane

Petroleum-based fluids - high resistance to ozone, sunlight, and weathering; low water resistance.

-65°F to 220°F -40°C to 93°C

Figure 2: Fluid compatibility chart.

TEST YOUR SKILLS 1. W hich of the following is not a function of hydraulic fluid?

2. The viscosity index (VI) is used to

a. Lubrication. b. Sealing. c. Heat transfer. d. Particulate removal.

e. Dissolving air and water.

a. describe the lubricating qualities of the fluid. b. determine how much water is in the hydraulic fluid. c. indicate the relative change in viscosity with changes in temperature. d. indicate the point where the fluid loses its lubricity. e. classify synthetic fluids. Solutions found on page 31.

SPECIAL AD SECTION

Xtract Filter Cart

PRODUCT SPOTLIGHT Contact us to showcase your products and services in the Product Spotlight. This special section is a high-profile area offering product-specific advertising. Visit fluidpowerjournal.com for more information or to view our media guide.

Keep your oil clean and dry with Xtract Filter Carts from Lubrication Engineers. These portable filtration systems make it easy to pull oil samples, clean the oil, and maintain oil cleanliness in multiple applications using the same fluid. They enable you to both screen oil to remove large particulates and clean oil to remove small particulates. www.lelubricants.com info@le-inc.com 800-537-7683

Coxreels Extreme Duty Series Born from the coalescing fires of the highest strength springs, stainless steel rollers, dual sintered bronze bearings, multiple axle supports, and welded box frames, the XTM Extreme Duty Reel combines the ultimate features into the world’s most robust reel solution. Special features such as swivel retainers which prevent unwanted vibratory loosening of threaded components and easily accessible ratcheting mechanisms set the XTM series on its own pedestal. High temperature, steel core arbors transfer the extra powerful heavy duty spring motor torque to the multiple supported axle ensuring reliable rewind in odd positions or dirty situations. Available in pressure ranges up to 5000 PSI, and dedicated hose solutions such as Suction hose, DEF hose, Gasoline or Fuel hose, the XTM is the solution for your high demand applications where you simply need the best of the best. www.coxreels.com

New—Flat Face Design "TVF" Series Quick Disconnect • Up to 6,000 PSI Operating Pressure— Coupled or Uncoupled • Full 4:1 Safety Factor • Superior Flow Characteristics—Minimal Pressure Drop • RoHS Compliant Plating • Multiple Port Options—Female NPTF, Female SAE O-Ring, Female BSPP, Code 61 & 62 Flange Port/Head P.O. Box 6479 • Fort Worth, TX 76115 817.923.1965 • www.hydraulicsinc.com

SEPTEMBER 2021

Cordis Electronic Proportional Pressure Controls Known for reliability, innovation and focus on miniature pneumatics, Clippard’s new revolutionary micro-controllers utilize the proven EVP and DVP lines of Clippard proportional valves allowing for steady, repeatable downstream pressure as demand or processes change. The result, a precise, linear digital pressure control within a closed-loop system with ultra high resolution (≤5 mV) and repeatability. Made in the USA.

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SPECIAL AD SECTION

Liquid Level Switches

High Cycle-Life Angle Valve Ares & Zeus 2-way pneumatically actuated angle seat valves are suitable for liquids, gases and steam. The superior design of the piston is unique to the market, enabling the plug to retract farther from the flow path, ensuring the highest flow capacity. The dual packing design, and a large diameter self-aligning stem insures the highest cycle life. Over 5 million cycles have been achieved. This competitively priced angle valve series is available in 3/8” to 2” with NPT & Tri-clamp end connections. Body available in bronze or 316SS. Visit our unique valve configurator to build, view, price or order your valve package easily and quickly online. https://assuredautomation.com/anglevalve 800-899-0553 • sales@assuredautomation.com

Suppressor

Liquid Level Switches are designed to shut down machinery or turn on warning devices when liquid supply recedes to a predetermined level. They can be wired to flash warning lights, sound howlers, shut down machines, or signal computers. This is especially helpful in unattended automated plants. Available with a housing for external mounting or without housing for internal applications. Oil-Rite Corporation PO Box 1207 Manitwoc WI 54221-1207 Phone: (920) 682-6173 Email: sales@oilrite.com www.oilrite.com

Accumulators

Contact us to showcase your products and services in the Product Spotlight. This special section is a high-profile area offering productspecific advertising.

Hydraulic Noise and Shock Suppressor Wilkes and McLean manufactures an In Line Noise and Shock Suppressor for hydraulics and is a stocking distributor of Nacol Accumulators. Our suppressors eliminate pulsations, which greatly reduces noise and vibration from applications from a few gallons up to 200 gallons. We stock all of our suppressor sizes as well as Nacol Accumulators and parts from 1/5 of a pint up to 15 gallons, in our Schaumburg, Illinois facility. 877.534.6445 info@wilkesandmclean.com www.wilkesandmclean.com

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Genuine Donaldson Internormen-Eaton Velcon-Parker We're hydraulic filter experts. We've been doing it for over 30 years. We're very competitive and happy to serve your needs. If you need hydraulic filter application help, we know the right questions, and we can give you the right answers.

Visit fluidpowerjournal.com for more information or to view our media guide.

J/T Hydraulics & Service Co. Inc. 1601 W. 25th Street • Houston, TX 77008 Local: 713.984.9727 • Toll Free: 800.591.8280 Fax: 713.861.2250 • www.jthydraulics.com

SEPTEMBER 2021

90% 80% 70% 50% 20% 0% 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

$200,000 OR MORE

$90,000 - $99,999

$80,000 - $89,999

$70,000 - $79,999

$60,000 - $69,999

$50,000 - $59,999

$40,000 - $49,999

$30,000 - $39,999

LESS THAN $30,000

100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

I do not hold any IFPS Certificates

SD - System Designer

PM - Pneumatic Mechanic

IHM - Industrial

IHT - Industrial

MHT - Mobile Hydraulic

PT - Pneumatic Technician

CC-Connector & Conductor

MHM Mobile Hydraulic

WHAT IFPS CERTIFICATIONS HAVE YOU EARNED

E - Engineer

PS - HPneumatic specialist

HS - Hydraulic specialist

SEPTEMBER 2021

$100,000 - $199,999

WHAT IS YOUR CURRENT SALARY

10%

DISSATISFIED

30%

40%

SOMEWHAT SATISFIED

By Michael Degan, Fluid Power Journal Editor Most fluid power professionals are satisfied with their jobs, according to a survey by the International Fluid Power Society and Fluid Power Journal. The biennial survey reflected the overall job satisfaction shown in a 2019 survey. But the 2021 findings showed some realignment in the levels of satisfaction. Of 134 responses to the April 1 to June 30 survey, 28% said they were very satisfied, while 37% were satisfied, down from 50% in 2019. Another 28% were somewhat satisfied in 2021, up from 24% in 2019. In another jump over the 2019 survey findings, 35% of fluid power professionals have not received a raise and do not expect one this year. That figure is up from 28% in 2019. However, 22% have received or expect a raise of 1-2% this year, up from 13% in 2019. For a raise in the 2-3% range, 19% received or expect one this year, down from 28% two years ago. In the 3-4% range, 11% received or expect a raise this year, down from 14% in 2019. Salaries for fluid power professionals are generally unchanged from two years ago. This year and in 2019, about 34% reported salaries of $100,000 to $200,000. While 17% said their salaries ranged from $90,000 to $99,000 in 2019, 10% reported compensation in that range this year. However, the number reporting salaries in the $70,000 to $79,000 range doubled from more than 6% in 2019 to over 13% this year. More than half of the 2021 respondents, 54%, said their compensation is fair. The 2021 responses reflected growth in IFPS certification. Over 70% said they hold a certification, up from 54% in 2019. More than half of the 2021 respondents, 54%, hold a hydraulic specialist certification, while 22% hold pneumatic specialist. Twenty-six percent hold no certification, down from 41% in 2019. This year’s survey also reflected an increase in certifications for mobile hydraulic mechanic, from 7% in 2019 to 17%. Most 2021 respondents, 56%, said they did not receive additional pay after obtaining an IFPS certification.

60%

SATISFIED

VERY SATISFIED

GROWTH SEEN IN IFPS CERTIFICATIONS

100%

ARE YOU SATISFIED WITH YOUR JOB

Survey Shows High Job Satisfaction, Aging Workforce

HOW MANY YEARS HAVE YOU WORKED IN FLUID POWER

LESS THAN 2 YEARS

Demographic findings from the survey gave a picture of an industry in flux with an aging population of fluid power professionals. Nearly half the respondents, 49%, have worked in the industry seven years or less, while 21%, have worked in fluid power more than 25 years. Twenty-nine percent have worked in the industry between eight and 25 years. Nearly half of the respondents, 45%, were over age 50, while 36% are under age 40. Not surprisingly, nearly all the respondents, 95%, were men. Most respondents were either engineers or sales people, while 37% reported working in technical or specialist jobs.  To see the full survey results, visit https://fluidpowerjournal.com /2021salarysurveyresults/.

2-4 5-7 8-10 11-15 16-20 21-25 25+ 0%

10%

20%

30%

40%

HOW OLD ARE YOU

LEAD TIMES OF HOURS, NOT WEEKS.

YOUNGER THAN 25

HYDRAULIC PUMPS. MOTORS. VALVES. SERVO VALVES. PROPORTIONAL VALVES.

25-29

When you need to get a machine back up and going yesterday, we’re here for you with our Hydraulex Reman™ line. Remanufactured pumps, motors and valves engineered to deliver OEM level performance and that carry an industry-best 24-month warranty. With our unmatched on-the-shelf inventory of units and parts, and our ability to convert or build units in hours instead of days or weeks, we’re sure to have the unit or part you need right now. Speed and availability redefined. Put a Hydraulex Reman™ unit to work for you.

30-39 40-49 50-59

1.800.422.4279 sales@hydraulex.com www.hydraulex.com

60+ 0%

10%

20%

30%

40%

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

SEPTEMBER 2021

FIGURE IT OUT

New Problem

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

A SPECIALTY MACHINE builder was having problems getting a vertical cylinder with a regenerative circuit to lift a hinged member. When the hinged member was lowered, an attached drill would drill a hole and lift it out of the way so the work piece could move horizontally and then have another hole drilled. It looked somewhat like a band saw that would cut horizontally fed bars and angles. When the cylinder was extended to lift the pivoting fixture up, it would extend about halfway up slowly and then pick up speed reaching the designed regen speed. You could hear oil blowing over the relief valve when it was extending slowly and stop when the regen speed was reached. Adjusting the counterbalance valves did not help. What was the problem?

Solution to August 2021 problem:

Pilot Operated Directional Valve Locks Up Pilot operated valves often have problems associated with the pilot drain and pilot pressure plugs. The rule of thumb is, if the pilot has external plumbing, there should be a solid plug installed inside the valve. No plumbing, no plugs except ones with orifices. Typically, if it is a pilot pressure problem, the valve will not shift even once. If it is a pilot drain problem, it will shift several times and then lock up. When I arrived, they could not find a schematic. When I reviewed the power unit to sketch it, I found the drain line ball valve was closed and causing the problem. To view previous problems, visit www.fluidpowerjournal.com/figure-it-out.

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.

New!

FLAT FACE DESIGN “TVF” SERIES QUICK DISCONNECT • • • • •

Up to 6,000 PSI Operating Pressure—Coupled or Uncoupled Full 4:1 Safety Factor Superior Flow Characteristics—Minimal Pressure Drop RoHS Compliant Plating Multiple Port Options—Female NPTF, Female SAE O-Ring, Female BSPP, Code 61 & 62 Flange Port/Head P.O. Box 6479, Fort Worth, TX 76115 V. 817/923-1965 www.hydraulicsinc.com

SEPTEMBER 2021

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SPECIAL AD SECTION

Engineering – Distribution - Manufacturing Allegheny York is your one stop shop for seal selection. Over 30,000 Line Items in stock. 98% fill rate. We’ll help your hydraulic repair jobs run more smoothly and efficiently. We manufacture and distribute standard and custom seals, OEM and custom seal kits, gaskets, o-rings, packings, oil seals, and more. We also injection and compression mold plastic and rubber parts.

FALL

LITERATURE REVIEW

Allegheny York 3995 N. George St. Ext. Manchester, PA 17345 Tel: 717.266.6617 Fax: 717.266.6371 www.AlleghenyYork.com

Valves, Pumps, and Manifolds

One-Stop Shop for the Life Cycle of Your Hydraulic & Pneumatic System Needs CFI is a distributor for many high-quality motion control and fluid power products such as Donaldson, Hy-Pro, and Moog. Whether it’s a custom design solution, repair, fluid conditioning and filtration service, product, or rental, CFI is available 24/7, 365 days a year.

Valves and Pumps for Extreme Environments

Experienced application engineers and knowledgeable fluid-power distributor representatives are available to help you select the best product for your application.

Undersea to Outer Space Doering Valves, Pumps and Accessories Exceed the Most Critical Performance Requirements

6343 River Road SE Clear Lake, MN 55319 USA +1 320.743.2276 info@doering.com www.doering.com

Made in USA

Since 1969

HITACHI FLANGELOCK AND CAP KITS AVAILABLE

Valves

Pumps

Housing

Assemblies

When you need a hydraulic valve, hydraulic hand pump or a hydraulic manifold have confidence in Doering to deliver high-quality products that meet demanding performance requirements. For over 50 years, our customers have trusted Doering in critical applications which include products on the International Space Station to sub-sea and everywhere in between. contact us now to discuss your hydraulic project.

Part number

Part description

Applicable machines

Number of parts

SWINGFLGLCK2062

Swing hose FlangeLockTM kit

EX3600, EX5600, EX8000

16 x 2062U - red FlangeLockTM

HITACHI FLANGELOCK AND CAP KITS AVAILABLE

Swing circuit cap kit

EX3600, EX5600, EX8000

16 x 2062 - cap

Travel hose FlangeLockTM kit

EX3600, EX5600, EX8000

16 x 2462U - purple FlangeLockTM

7.7

TRAVELCAP2462

Travel circuit cap kit

EX3600, EX5600, EX8000

16 x 2462 - cap

6.4

Part description Swing hose FlangeLockTM kit

EX3600, EX5600, EX8000 FRONTATTCAP326162 EX3600, EX5600, EX8000 BOOMARCHFLGLCK3262

Swing circuit cap kit Travel hose FlangeLockTM kit

TRAVELCAP2462

Travel circuit cap kit

FRONTATTFLGLCK326162

Front attachment FlangeLockTM kit

FRONTATTCAP326162

Front attachment cap kit

BOOMARCHFLGLCK3262

Boom arch hose FlangeLockTM kit

6.7

SWINGCAP2062 TM

Part number

SWINGCAP2062

Weight (kg)

TRAVELFLGLCK2462

SWINGFLGLCK2062

TRAVELFLGLCK2462

800-722-2630 isales@confluids.com www.confluids.com

Applicable machines FRONTATTFLGLCK326162

Front attachment Number of parts FlangeLockTM kit

Weight (kg) EX3600, EX5600, EX8000

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

8.9

16 x 2062U - red FlangeLockTM Front attachment cap kit

6.7 EX3600, EX5600, EX8000

14 x 3262 - cap 4 x 3261 - cap

9.5

Boom arch hose 16 x 2062 - cap FlangeLockTM kit

4.5 EX3600, EX5600, EX8000

16 x 2462U - purple FlangeLockTM 7.7 Boom arch hose cap kit EX3600, EX5600, EX8000

EX3600, EX5600, EX8000 BOOMARCHCAP3262 EX3600, EX5600, EX8000

4.5

16 x 2462 - cap

20 x 3262U - black FlangeLockTM

9.9

20 x 3262 - cap

11.3

Stop the Mess

Hydraulex Repair Services

6.4

CONTAMINATION CONTROL 14 x 3262U - black FlangeLock

EX3600,and EX5600, EX8000 maintenance of hydraulic systems 8.9 Routine scheduled 4 x 3261U - black & silver FlangeLockTM 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 TM 14 x 3262 - cap EX5600,ofEX8000 9.5 toEX3600, high levels contamination rapidly decreasing component longevity. The importance of contamination control is sometimes 4 x 3261 - cap overlooked when performing maintenance due to incorrect practices being used.

FlangeLock Stops Leaking Hydraulic Lines. • No Tools Required • No Expensive Hardware Needed • No more Rags stuffed into hoses • No more messy Plastic Caps number of FlangeLocks * and caps to help reduce contamination. THE FLANGELOCK TOOL AND CIRCUIT BLANKING CAPS *Note: FlangeLocks are not to be used under pressure • The Ultimate Contamination Control Tool • One hand Installation HITACHI MAKING CONTAMINATION CONTROL EASY Hitachi have packaged FlangeLock tool and caps specifically for Hitachi mining excavators. The Hitachi customised • Eliminate Hydraulic Oil Spills & Clean up kits make sure no matter which component routine maintenance is being performed on, you will always have the exact number of FlangeLocks * and caps to help reduce contamination. • Quick Installation & Ease of Usage *Note: FlangeLocks are not to be used under pressure • Industry Acclaimed Call you local Hitachi Muswellbrook representative • Safe fororPersonnel & Environment the branch on 02 6541 6300 for more information. • 50% Reduction of Labor Costs • 100% Made in USA THE ULTIMATE CONTAMINATION CONTROL TOOL

20 x 3262U - black FlangeLockTM

EX3600, EX5600, EX8000

9.9

THE FLANGELOCK™ TOOL AND CIRCUIT BLANKING CAPS

™ ™ The FlangeLock tool and caps are20thex 3262 ultimate BOOMARCHCAP3262 Boom arch hose cap kit EX3600, EX5600, EX8000 - cap contamination control 11.3 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 CONTAMINATION CONTROL stop the mess. Routine and scheduled maintenance of hydraulic systems are vital to getting the most out of your Hitachi Mining Excavator. While MAKING EASY system maintenance plays the largest role in the prevention ofHITACHI unnecessary machineCONTAMINATION downtime, it can also CONTROL expose the hydraulic ™ to high levels of contamination rapidly decreasing component longevity. The importance of contamination control is sometimes Hitachi have packaged FlangeLock tool and caps specifically for Hitachi mining excavators. The Hitachi customised overlooked when performing maintenance due to incorrect practices being used. which component routine maintenance is being performed on, you will always have the exact kits make sure no matter ™

™

320.743.2276 customerservice@doering.com www.doering.com

™ ™ protecting your hydraulic system. The FlangeLock The FlangeLock™ tool and caps are the ultimate contamination control tools for 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.

™

Call you local Hitachi Muswellbrook representative or the branch on 02 6541 6300 for more information.

FlangeLock 203.861.9400 • sales@flangelock.com www.flangelock.com

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Our Repair Services Brochure covers the types of components (pumps, motors, final drives, valves, control cards, amplifiers and cylinders) we can repair, why we’re an excellent choice for your repair needs, and also how the repair process works. View or download it by visiting our website at www.hydraulex.com. Hydraulex Toll Free: 800.422.4279 Tel: 586.949.4240 Email: sales@hydraulex.com www.hydraulex.com

SEPTEMBER 2021

SPECIAL AD SECTION

Compressed Air Filtration Brochure offers a comprehensive overview of the company’s complete line of compressed air filtration products. Highlighted is the patented family of Extractor/Dryers. These two-stage, point of use filters remove contaminates to a 5-micron rating with flow ranges of 15 to 2,000 scfm. Additional products available include the SuperStar Membrane Dryer, .01 Micron Filter, Refrigerated Extractor/ Dryer, and much more. La-Man Corporation 800.348.2463 www.laman.com

Marveline TB® Series Filters The performance of your equipment relies on quality parts. The success of our company is based on providing quality filters to a variety of industries. We have had a steady growth of product and customers since 1943. Our ceaseless research into new ideas, materials, and methods is producing important advances in filter design, performance, and servicing. Marvel Filters LLC www.marvelfilters.com sales@marvelfilters.com 1-708-343-4090

Hydraulic Pumps, Motors & Accessories SUNFAB HYDRAULICS INC.

Sunfab Hydraulics develops, manufactures and sells hydraulic pumps and motors for mobile applications. We provide our customers with some of the world's most sophisticated products in our niche market - products that meet stringent quality, environmental and safety requirements and offer functional solutions.

Sunfab Hydraulics Inc. +1 (704) 509-6435 sunfab-us@sunfab.com www.sunfab.com/us

SEPTEMBER 2021

Hydraulic Flanges and Components New 120 page catalog includes popular styles of MAIN Manufacturing’s extensive offering of carbon and stainless Hydraulic Flanges and Components – ready for immediate shipment. Metric ordering information, weld specs, and dimensional information included. The “Quick Reference Guide” helps specify less popular items often stocked or quickly manufactured (generally 3-4 days) at our US plant. MAIN Manufacturing Products, Inc. Grand Blanc, MI 800.521.7918; FAX: 810.953.1385 E-mail: info@mainmfg.com www.mainmfg.com/fpj

304 & 316 Stainless Steel Liquid Level Gages Corrosive resistant properties make stainless steel gages suitable to a variety of applications. Oil-Rite offers 304 and 316 stainless steel liquid level gages in sizes from 3" to 60". A red line on a white background enhances liquid level visibility. Available with adapters and thermometer. Visit Oil-Rite’s online product catalog for new cut sheets and detailed information. Oil-Rite Corporation PO Box 1207 Manitwoc WI 54221-1207 Phone: 920.682.6173 Email: sales@oilrite.com www.oilrite.com

Hydraulic Live Swivels Catalog Inline and 90° hydraulic live swivels. Available in sizes from 1/8" to 2-1/2", rated to 10,000 PSI, heat treated, superior quality alloy steel, chrome or stainless steel ball bearings, withstands heavy side loads, burnished (micro smooth) barrel bores, Viton®, Aflas®, or Teflon® encapsulated seals, zinc or nickel plated, available in 304 and 440 stainless steel, full flow - low pressure drop, rebuilding kits available. Super Swivels Phone: 763.784.5531 Fax: 763.784.7423 Website: www.superswivels.com

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SPECIAL AD SECTION

Texcel Hydraulic Hose & Fittings

The Better Solution Provider

TEXCEL HYRAULICS

At Texcel we believe in making a difference for your business. Our cutting-edge line of hydraulic hose and fittings is not just a product division. It’s a promise of superior service, quality, technical support and product availability. For more information, please visit: www.texcelhydraulics.com Contact Us: sales@texcelrubber.com 800.231.7116

YOUNG POWERTECH INC.

Young Powertech is a manufacturer and distributor of many mechanical and hydraulic products. With the cooperation with STM/GSM of Italy we can offer one of the most complete range of every possible type of gear reducer for the construction, framing, mining, marine and industrial field. Together with a wide range of hydraulic motors and other hydraulic components Young Powertech can deliver solution like nobody else. With a large inventory and assembly facility in the USA Young Powertech Can deliver very quickly and assure production delivery for all customers. Young Powertech Inc. 610.558.0760 info@youngpowertech.com www.youngpowertech.com

CL ASSIFIEDS ADVERTISER INDEX Company..................................................Page 3B Filters, Inc..................................................... 20 Allegheny York LLC....................................... 3, 29 Almo Manifold & Tool Co.................................. 31 Assured Automation..................................... 5, 25

IN STOCK FROM 25MM TO 80MM

CFC-Solar............................................................. 5

MANY COVERS IN STOCK • Pressure, Flow, Directional • Large Flow 90° Valves

Clippard Instrument Lab Inc. ........................... 24 Controlled Fluids, Inc.................................... 3, 29 COXREELS................................................... 15, 24

almomanifold.com

Danfoss Power Solutions.......Inside Front Cover Doering Company............................................. 19 Flange Lock................................................. 21, 29 Fluidyne Fluid Power......................................... 14 HAWE North America, Inc................................. 12 HDMZ....................................... Inside Back Cover Hydraulex..................................................... 27, 29 Hydraulics, Inc............................................. 24, 28 J/T Hydraulics & Service Co............................. 25 La-Man Corp.................................................. 9, 30 Lubrication Engineers, Inc............................ 7, 24

WANTED SURPLUS

Pumps · Motors · Valves · Servo/Proportional

• Single DIN blocks • Active Valves • Monitored Poppets

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

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

Main Manufacturing Products Inc................... 30 Marvel Engineering Co................................ 13, 30 MEFA/Heinrich's.................................................. 9 MOCAP INC....................................................... 28 MP Filtri USA Inc................................................. 5 Oil-Rite Corp................................................ 25, 30 Stiebel Drive Technology.................................. 20

Email, call or fax with a list of your Surplus. We’ll provide you with a price offer! 1-800-422-4279 | 586-949-4240 Fax: 586-949-5302 | surplus@hydraulex.com

Sunfab Hydraulics Inc................................. 19, 30 SunSource/Cyclone Hydraulics........................ 21 Super Swivels.................................................... 30 Texcel............................................................. 1, 31 Wilkes & McLean Ltd.................................. 15, 25 Young Powertech......................... 31, Back Cover WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

The correct answers to Test Your Skills on page 23 are 1.e and 2.c.

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

almomanifold.com

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

SEPTEMBER 2021

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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

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Innovation + Performance = Excelon® Plus. Find out more norgren.com

Soft start dump valves allow pressure to gradually increase on start-up, while the dump function allows the system to be exhausted quickly in an emergency At-a-glance performance data via IO-Link

It all adds up to Excelon® Plus, the most advanced and connected air prep available Norgren’s Excelon® Plus Air Preparation equipment features a high-flow, compact design without compromising our commitment to robust construction. And now with IO-Link connectivity, Excelon® Plus can be setup and monitored remotely, making it a perfect solution for a wide range of industrial applications. •

Connectivity options for Industry 4.0—IO-Link connectivity for remote setup, monitoring, and access to performance data. Available on general purpose regulators and filter-regulators, or as a standalone pressure sensor.

•

Designed with safety and equipment longevity in mind—Tamper-resistant padlock features, rotating safety shut-off valve and optional soft start dump valve minimizes vibration on startup to maximize the lifespan of machinery and pneumatic components while also allowing the system to be exhausted quickly if desired.

•

Quick and easy installation—Quikclamp® assembly and integrated brackets let you remove the unit without breaking any pipe connection.

Scan to Configure Excelon® Plus for your Application

The BETTER Solution Provider

Slewing Planetary Gearboxes Orbital Motors

Close Circuit Piston Pumps and Motors

Gear Pumps and Motors

Rotary Manifolds

610.558.0760

Rotary Actuators

Fluid Power Journal September 2021

Articles inside

Literature Review

IFPS Update

Figure It Out

Notable Words

Component Showcase