August 18, 2015 Volume 11 Issue 31

Motion Control News & Products

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Simplify pick and place with the THK PPR

THK's Pick-and-Place Robot PPR is a robot that can pick up delicate or minute workpieces such as electronic components and quickly and accurately transfer and assemble them to the base. In addition to the basic movements of raising, lowering, and rotating, various sensors (such as a force sensor), solenoid valves, and controller are all in one unit. The PPR is a process-optimized robot that can improve the production speed of the parts assembly processes and reduce work damage.
Learn more.


New ROBOMACHINE products and more from FANUC

FANUC America demonstrated the future of manufacturing at IMTS 2026 last week, showcasing how Physical AI-powered automation integrates advanced CNC, machining, and robotics to boost productivity and speed deployment. One highlight was the debut of the ROBODRILL DC Series machining centers -- including the high-speed D54CS and D74CS models -- alongside interactive demonstrations featuring collaborative robots, robotic welding, material joining, painting, and assembly technology.
See all the FANUC new tech featured at IMTS.


What is a stick-slip bi-phase positioning stage?

PI (Physik Instrumente) is expanding its Bi-Phase Inertia Drive (BIX) technology with new motor architectures for compact, high-precision nanopositioning applications. Based on the piezo stick-slip principle, BIX stages replace conventional single actuators with two synchronized multilayer piezo actuators. This compact design delivers precise, repeatable motion while maintaining piezo inertia self-locking.
Learn more about this technology.


Universal Robots unveils Gen 7 robot platform!

Redesigned from controller to tool flange, the new Gen 7 robot platform is out-of-the-box AI-ready, giving companies the modern software tools and next-level connectivity they need to confidently take AI from the lab into industrial operations. Gen 7 represents a unified system upgrade designed to make even the most demanding tasks and setups easier. See all the new features -- they are significant.
Read the full article.


Adaptor mount and hub options provide flexibility

Zero-Max's new CD Power-Series Flexible Shaft Couplings feature ISO Flange Adaptors matching ISO 9409-1 patterns on gear reducers and robotics. Eliminating custom transitions, this direct connection enhances torsional stiffness and positioning accuracy while saving space, weight, and inertia. Offering continuous torque up to 65,000 in.-lb and versatile hub options, these compact couplings deliver high power density.
Learn more.


Top-shelf motors: Completely revised maxon catalog

maxon has completely overhauled its 2026/2027 catalog, streamlining its portfolio to reduce complexity and improve navigation. The new structure features dedicated sections for business units -- Medical, Aerospace, Industrial Automation, Mobility -- and specialized fields like Robotics and Space. Key product highlights include new ECX PRIME and ECX FLAT motors, GSW planetary gearheads, and ESCON2/EPOS4 controllers.
Learn more and check it out.


Custom stators, rotors, and motor assemblies for low- to mid-volume applications

Arnold's Ramco Electric Motors is your single partner for custom motor components and complete assemblies. Ramco builds solutions for AC induction, switched reluctance, and brushless DC designs up to 200+ HP. Capabilities include custom stators, rotor-shaft assemblies, aluminum and copper casting, induction brazing, permanent magnet assembly, and precision rotor balancing.
Learn more.


Rotate robot arms more than 600 degrees

The unsupported twisterchain® from igus eliminates the need for additional trough systems or guide plates in robotic applications, especially in palletizing. This results in a clean, efficient, and space-saving system architecture that delivers both technical and economic advantages. Thanks to its specialized design, it supports rotations of over 600 degrees.
Learn more.


Match the torque of rotary solenoids to your application

Magnetic Sensor Systems has launched the Made in USA R-10-200-CWM Series of clockwise rotary solenoids. Measuring 2.00 in. in diameter and 1.04 in. long with 18 different AWG options and a serrated front shaft end, these compact units optimize torque, current, and duty cycle. When power is removed, an integral return spring automatically returns the shaft to its home position. The shaft is supported by two high-precision radial ball bearings, providing smooth operation with no axial play. Applications include medical, security, and office equipment.
Learn more.


Planetary servo gear unit: New economy series

SEW-EURODRIVE has expanded its PxG planetary servo gear unit portfolio with the new PxG economy series, introducing the P1.G, P2.G, and P3.G performance classes. Designed for standard industrial automation applications like packaging and material handling, these cost-effective units feature peak torque ratings from 11 to 500 Nm and over 20,000 hours of service life, helping machine builders eliminate unnecessary over-specification.
Learn more.


Compact hexapod 6-DOF alignment system has overload protection

PI's compact H-811.I2HS hexapod delivers precise 6-DOF motion with patented overload protection, simplifying setup and operation in OEM applications. This built-in protection safeguards precision mechanics during installation and integration against accidental forces or improper handling. Furthermore, the hexapod mounts in any orientation, granting system designers exceptional flexibility for optical, photonics, microscopy, metrology, and automation systems.
Learn more.


What is STUDROLLER technology? Cross Roller Guides

NB SLIDE WAY cross roller guides use precision rollers to provide stable, non-recirculating linear motions in precision stages, inspection equipment, semiconductor manufacturing, and more. At the heart of all NB cross roller bearings is the STUDROLLER mechanism, which eliminates the cage-creep phenomenon that, over time, can create deviances in cross roller retainer performance. NB cross roller guides equipped with this system are more accurate and better performing than any other comparable products on the market today. High acceleration and faster cycle times are possible in any orientation.
View the video.


Ruggedized Nano servo drives for harsh environs

Copley Controls has released its R47 and R48 NanoPlus Micro Module servo drives. Designed for extreme environments and space-constrained applications, these rugged platforms operate from 9 to 180 VDC, delivering peak power up to 6.3 kW. Offering CANopen (R47) or EtherCAT (R48) communications, both feature STO SIL 3 safety and broad encoder support. Well suited for COTS military, nautical, aviation, oil refining, and vehicle-based systems.
Learn more.


Simplify AC motor control with the new OMRON M1 Inverter

The OMRON M1 Inverter simplifies machine design by unifying motion, safety, networking, and motor control into a single platform. Available in M1-STD, M1-ECT, and M1-EMP models, it controls IM and PM motors with high precision. Featuring SIL3 PLe STO safety and native EtherCAT, EtherNet/IP, or RS-485 communications, the M1 accelerates development within the Sysmac environment.
Learn more.


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.


Study finds a way to prevent fires in next-generation lithium batteries

In a study that could improve the safety of next-generation batteries, researchers discovered that adding two chemicals to the electrolyte of a lithium metal battery prevents the formation of dendrites -- "fingers" of lithium that pierce the barrier between the battery's halves, causing it to short out, overheat, and sometimes burst into flame.

Dendrites (fingerlike deposits of lithium metal) grow from the surface of a battery anode and penetrate the separator between the battery's halves. When this happens the battery can short-circuit, overheat, and burst into flame.

 

 

 

 

The findings, published June 17 in Nature Communications, could help remove a major barrier to developing lithium-sulfur and lithium-air batteries, promising future technologies that could store up to 10 times more energy per weight than batteries now used in consumer electronics and electric cars.

"Because these batteries would be much lighter than today's rechargeable batteries, they have a lot of potential for extended-range electric vehicles," said Yi Cui, an associate professor at Stanford University and the Department of Energy's SLAC National Accelerator Laboratory. "But one of the things that's been holding them back is their tendency to form dendrites, which are also the culprit behind overheating and occasional fires in today's lithium-ion batteries."

A new approach to safety
Dendrites form when a battery electrode degrades, and metal ions become deposited on the electrode's surface. When those finger-like deposits elongate until they penetrate the barrier between the two halves of the battery, they can cause electrical shorts, overheating, and fires.

In a previous study published last October, Cui and his colleagues reported that they had developed a "smart" lithium-ion battery that senses when dendrites start to puncture the barrier so the battery can be replaced before the situation becomes dangerous. This could offer a solution for millions of batteries now in use in cell phones, laptops, and other devices, as well as in electric cars and airplanes.

The new research addresses battery technologies that haven't reached the market yet, and it takes a different approach: adding chemicals to the electrolyte to prevent dendrite formation. One compound, lithium nitrate, has been under investigation for a long time as an additive to improve battery performance. The other, lithium polysulfide, has been considered a nuisance: Formed when a sulfur electrode degrades, it travels to the lithium metal electrode and wrecks it, Cui said.

In brainstorming sessions, the research team realized their combined effect had not been studied before; together the chemicals could potentially react with lithium metal to form a stable, solid interface between the electrode and the electrolyte.

Improved performance
They assembled coin cell batteries, similar to the ones that power calculators, remote controls ,and watches, and added various concentrations of the two chemicals to the ether-based electrolyte. Then they ran those batteries through many charge/discharge cycles, took them apart, and examined the electrodes with an electron microscope and an X-ray technique that reveals their morphology and chemical composition.

They found that adding both chemicals in just the right amounts stopped lithium dendrite formation; harmless pancake-like deposits grew there instead. The lithium metal acquired a stable coating that helped protect it from further degradation and actually improved the battery's performance.

Images from a scanning electron microscope show the surfaces of battery anodes after 100 charging cycles. Adding a combination of two chemicals suppresses dendrite growth (top); when only one of the chemicals, lithium nitrate, is added, dendrites cover the surface (bottom).

 

 

 

 

In tests, batteries with both chemicals added operated at 99 percent efficiency after more than 300 charge-discharge cycles, compared to significantly decreased efficiency after 150 cycles for batteries treated with lithium nitrate alone, said Fiona (Weiyang) Li, a postdoctoral researcher in Cui's lab and first author of the paper.

Harnessing synergy
"This is a really exciting observation," Li said. "We had been doing experiments all along with these two chemicals in there, but this was the first time we looked at the synergistic effect. This does not completely solve all the problems associated with lithium metal batteries, but it's an important step."

Yet-Ming Chiang, a professor at the Massachusetts Institute of Technology, collaborated with the team and helped them interpret their results. He said the next step is to see if this approach can prevent dendrite formation in larger-scale cells that are closer to being practical batteries. It may also work for electrodes made of other metals, such as magnesium, calcium, or aluminum, that also have potential for storing much more energy than today's batteries.

"Preventing dendrite formation is going to be key to their success," Chiang said.

Funding for the project was provided by the Joint Center for Energy Storage Research, a Department of Energy Innovation Hub, and Cui and Chiang are both JCESR principal investigators.

Source: SLAC National Accelerator Laboratory (operated by Stanford University for the U.S. Department of Energy Office of Science and located in Menlo Park, CA)

Published August 2015

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