August 04, 2026 Volume 22 Issue 29

Motion Control News & Products

Designfax weekly eMagazine

Subscribe Today!
image of Designfax newsletter

Archives

View Archives

Partners

Manufacturing Center
Product Spotlight

Modern Applications News
Metalworking Ideas For
Today's Job Shops

Tooling and Production
Strategies for large
metalworking plants

Flexible planetary gearheads: Quiet, extremely robust

FAULHABER GPT gearheads for miniature and micro motors deliver high power density, exceptional flexibility, and excellent cost efficiency. Designed for seamless integration with diverse motors and encoders, these compact planetary drives feature hardened stainless steel components that reliably withstand extreme torques and abrupt load changes. Offered in standard, low-noise, and high-torque variants, they ensure precise, durable performance across wide operating temperature ranges.
Learn more.


What is a low-waving linear motion guide?

If you are having a problem with your linear guides not always staying perfectly straight during use, it may be due to a phenomenon called waving -- a problem that is particularly critical in high-precision markets such as semiconductor and LCD equipment-related applications or machine tools. Thankfully, THK has an answer.
Read the full article.


NORD serves up sweet energy and cost savings for industrial bakeries

NORD DRIVE-SYSTEMS offers robust, highly configurable drive solutions designed to optimize efficiency, ensure hygiene, and reduce the TCO for automated bakery systems. From industrial-scale mixing and portioning to baking, cooling, and packaging, NORD's modular product portfolio delivers precise, reliable performance across every stage of production.
Read the full article. You may learn something even if you are not in the baking industry.


Key considerations for battery-powered motors

Battery-powered motor applications require careful design considerations to pair motor performance and power consumption profiles in concert with the correct battery type. This Power Electric article covers power requirements, performance considerations, and battery choices to assist you in selecting an efficient motor and a battery with the appropriate capacity. Good technical info.
Read the Power Electric technical article.


Driving next-gen pump and fan applications: Sinamics G210X

The Sinamics G210X is a new frequency converter for advanced pump, fan, and compressor applications, combining easy engineering with robust design. Integrated functions, seamless TIA Portal integration, and a web server reduce PLC effort to speed up commissioning, operation, and diagnostics. IP55 protection, 3C3 coating, and S2 system redundancy ensure reliable operation in demanding environments.
Learn more.


New Exlar food-grade actuator

Curtiss-Wright's Actuation Division has expanded its Exlar line with hygienic electric actuators using FDA-approved materials and finishes. Designed for food, beverage, packaging, and pharmaceutical automation, the new GTF unit enables economical USDA, 3-A, BISSC, and EHEDG certification. Its IP69K washdown option, inverted roller screw, and compact servo-driven design deliver reliable, high-performance motion for hygienic machinery.
Learn more.


New Texas conveyor system is 42 miles long!

SEW-EURODRIVE is helping power one of the most ambitious bulk material handling projects in North America through its contribution to the Dune Express conveyor system, a record-setting 42-mile single-flight conveyor across the Permian Basin.
Read the full article.


Compact servo drives for harsh environs

Built on Copley's proven NanoPlus platform, the compact, 1.2-oz R-Series Nano servo drives withstand extreme temperatures, vibration, shock, and humidity. Available in R47 (CANopen) and R48 (EtherCAT) models, they suit space-constrained, harsh environments such as mil/aero robotics and gimbals. This commercial off-the-shelf series provides a hardened option without defense-specific development lead times.
Learn more from Copley Controls.


Hybrid actuator with force up to 14,726 lb

Kyntronics' new all-electric HyCore hybrid actuator is a compact, low-cost alternative to traditional hydraulic, pneumatic, and electro-mechanical systems. Engineered for OEMs, it delivers up to 14,726 lb of force. The self-contained design eliminates leaks and wear, providing precise control, shock-load tolerance, and high efficiency. It simplifies integration and lowers operating costs for mobile equipment, packaging, assembly automation, and more.
Learn more.


SDP/SI motion products: Best sellers

SDP/SI's best sellers aren't just popular -- they're proven. These are the motion components their customers return to time and again for precision, reliability, and unbeatable value. From belts and pulleys to gears, bearings, and couplings, each product has earned its place through consistent performance in real-world applications.
Learn more and see the full products list.


Automated part grinding and finishing in one unit!

Grinding large fabrications is a classic dull, dirty, and dangerous task perfectly suited for automation, yet traditional setups require multiple costly robots. At Automate 2026, Güdel debuted a single-robot solution that utilizes two extra degrees of freedom to finish massive surfaces without complex part repositioning.
Read the full article.


Rockford RBS ball screws and nuts now available

Automation-Direct now offers US-manufactured RBS ball screws and nuts for precise linear motion in OEM and maintenance applications. Achieving over 90% efficiency, they feature low friction, high accuracy, and minimal wear. Available in various diameters, lengths, and leads, these precision-matched components handle axial loads with minimal backlash, providing a dependable solution that reduces maintenance and extends operational life. Great prices too.
Learn more.


Next-gen conveyor transports 3,000-kg payloads

Building on its established portfolio of twin-strand conveyors that are currently used in a variety of industry verticals, Bosch Rexroth is introducing the TS 7plus transfer system, which is the world's first freely configurable, fully electric conveyance solution to workpieces weighing up to 3,000 kg. TS 7plus transports material via conveyor rollers on freely configurable modular sections with lift/transverse, rotary, and positioning units, as well as stop gates. Great for automotive, battery, aerospace/defense, and more.
Learn more.


Next-generation air bearing linear slide

The A-123 noncontact nanoposi-tioning stage integrates a brushless motor, air bearings, and a 1-nm encoder, supporting 40-kg payloads over 750-mm travel. Its pressurized air film eliminates the friction, wear, and vibration of mechanical stages, ensuring zero particle generation. Customizable with options such as granite bases and isolation systems, it is ideal for semiconductor metrology, inspection, photonics, and more.
Learn more.


How to implement redundancy in stepper motors

Some of the recent research activities in the area of electric motor drives for safety-critical applications (such as aerospace and nuclear power plants) are focused on looking at various fault-tolerant motor and drive topologies. After discussing different solutions, this article focuses on a miniature permanent magnet (PM) stepper motor design that provides increased redundancy.
Read this informative FAULHABER article.


Are gas turbines ready for the hydrogen economy? The embrittlement problem

Can we fuel gas turbines with hydrogen instead of fossil fuels and cut 15% of global carbon dioxide (CO2) emissions?

Gas turbines generate around 22% of the world's electricity. Replacing fossil fuels is a key step toward more sustainable power generation. Hydrogen is widely considered a promising alternative fuel for gas turbines in both power generation and aviation. However, before hydrogen can be used safely on a large scale, researchers need a better understanding of how it affects the materials exposed to the extreme operating conditions inside turbines.

While the interaction between hydrogen and metallic materials has been extensively studied at ambient temperatures, far less is known about its effects at elevated temperatures found in gas turbines. An international team of researchers has now investigated how hydrogen affects nickel-base superalloys -- the material of choice for gas turbines -- at elevated temperatures. Their results indicate that hydrogen-induced embrittlement can be at least twice as severe, posing a significant challenge for components that must meet the highest standards of safety and reliability.

Researchers at the Max Planck Institute for Sustainable Materials (MPI-SusMat) and their collaborators published their new findings recently in the journal Nature Materials.

Why hydrogen trapping at elevated temperatures fails
"When hydrogen enters a nickel-base superalloy at ambient temperatures, it is usually trapped at interfaces and dislocations," explained Dr. Xizhen Dong, postdoctoral researcher at MPI SusMat and one of the first authors of the recent publication. "At elevated temperatures, hydrogen atoms migrate to carbon vacancies within carbides, causing their partial decomposition. Moreover, hydrogen and carbon atoms react and form methane. This highly pressurized methane exerts a high local internal pressure that weakens the interfaces and promotes damage."

Dong and her colleagues tested how hydrogen affects nickel-base superalloys in a temperature range from 400 to 1,000 C. By combining atom probe tomography and density functional theory calculations, the researchers were able to show that the degradation mechanisms in nickel-base superalloys exposed to hydrogen fundamentally change depending on the operating temperatures. The degradation only takes place at 400 C, while no methane formation is seen above that.

"What we discovered here is essential, especially for gas turbines and flying turbines, which, unlike stationary steam turbines, are frequently switched on and off and therefore experience a larger temperature and load spectrum where embrittlement effects can occur," said Professor Dierk Raabe, director at MPI-SusMat and one of the corresponding authors.

Designing hydrogen-resistant mickel-base superalloys
Having shown that carbides are the entry gate for hydrogen-induced cracking, a future alloy design would aim to tailor the alloy's microstructure by replacing carbides. Since carbides are widely used to strengthen high-performance alloys, new strengthening strategies will be required.

Alternatively, a balance has to be found between mechanical strength gained from carbides and hydrogen embrittlement resistance. These findings underscore the need for temperature-specific mechanistic frameworks and predictive models to describe hydrogen-induced damage not only in nickel-base superalloys, but also in other carbide-containing alloys, including steels and metal ceramic composites, and pave the way for future hydrogen-fueled gas turbine energy and air traffic systems.

The research was led by scientists from the East China University of Science and Technology (China), Max Planck Institute for Sustainable Materials (Germany), and the Hunan University (China).

Source: Max Planck Institute for Sustainable Materials

Published August 2025

Rate this article

[Are gas turbines ready for the hydrogen economy? The embrittlement problem]

Very interesting, with information I can use
Interesting, with information I may use
Interesting, but not applicable to my operation
Not interesting or inaccurate

E-mail Address (required):

Comments:


Type the number:



Copyright © 2026 by Nelson Publishing, Inc. All rights reserved. Reproduction Prohibited.
View our terms of use and privacy policy