September 18, 2018 Volume 14 Issue 35

Motion Control News & Products

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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.


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.


DARPA/Boeing Experimental Spaceplane program successfully completes engine test series

This test series is the first time engineers had operated the RS-25 engine in an aircraft-like fashion with such repetition.

 

 

DARPA's Experimental Spaceplane (XSP) advances toward its goal for rapid turnaround and on-demand launch with the completion of a test series that put the spaceplane's AR-22 Experimental Spaceplane Main Engine through a rigorous campaign. In the two weeks preceding the campaign, the engine ran twice to establish initial performance characteristics and turnaround processes. Then, starting July 26, the engineering team successfully fired the engine 10 times in just under 240 hours. All firings lasted at least 100 seconds. The AR-22 engine is a variant of the RS-25, also known as the Space Shuttle Main Engine (SSME).

The Experimental Spaceplane program is a public-private partnership between DARPA and Boeing. The XS-1 program envisions a fully reusable unmanned vehicle, roughly the size of a business jet, which would take off vertically like a rocket and fly to hypersonic speeds.

Experimental Spaceplane (XS-1) concept.

 

 

The vehicle would be launched with no external boosters, powered solely by self-contained cryogenic propellants. Upon reaching a high suborbital altitude, the booster would release an expendable upper stage able to deploy a 3,000-lb satellite to polar orbit. The reusable first stage would then bank and return to Earth, landing horizontally like an aircraft, and be prepared for the next flight, potentially within hours.

Boeing teamed with Aerojet Rocketdyne for the AR-22. The program is in the second of three phases, the final of which is a flight test targeted for early 2021. Highlights of the unmanned Experimental Spaceplane include:

  • Automated flight termination and other technologies for autonomous flight and operations;
  • Capability to deploy at least 3,000 lb to low Earth orbit; and
  • Design that accommodates different types of upper stages.

Other technologies in the XS-1 design include:

  • Advanced, lightweight composite cryogenic propellant tanks to hold liquid oxygen and liquid hydrogen propellants;
  • Hybrid composite-metallic wings and control surfaces able to withstand the physical stresses of suborbital hypersonic flight and temperatures of more than 2,000 F; and
  • Automated flight-termination and other technologies for autonomous flight and operations, including some developed by DARPA's Airborne Launch Assist Space Access (ALASA) program.

The 10 x 10 test series, with its sequence of 10 discrete, long-duration firings in rapid succession, is unprecedented for large hydrogen-fueled liquid rocket engines. The test is an early check for one of the Experimental Spaceplane program's most critical subsystems required to achieve aircraft-like operations. This first-of-its-kind test series took place at NASA's Stennis Space Center in Stennis, MS.

"When it comes to space access, DARPA's focus is on getting there quickly and inexpensively, to the specific orbit we want, at a time of our choosing," said Fred Kennedy, director of DARPA's Tactical Technology Office, which includes the Experimental Spaceplane program. "In the future, we foresee large constellations of small satellites, with an ongoing need for replenishment to replace old systems and demonstrate new, innovative capabilities. If successful, XSP will be a key part of that strategy."

VIDEO: Experimental Spaceplane (XS-1) phase 2/3 concept video.

The RS-25 engine family has a history of more than 1 million seconds of runtime, demonstrating its maturity. This test series is the first time engineers had operated it in an aircraft-like fashion with such repetition. Achieving this level of performance required engineers to streamline the maintenance and turnaround procedures to only what was truly necessary. That meant, for example, understanding and running with the kind of natural wear-and-tear associated with aircraft engines, without compromising reliability, safety, or performance. After each run, the team analyzed myriad recorded data to assess the engine's health. These rapid, yet accurate, assessments were made possible by decades of prior SSME data.

Another significant challenge of the series was rapidly drying the engine between tests. The propellants -- liquid hydrogen and liquid oxygen -- combine to create liquid water that accumulates internally. If the engine is chilled down and restarted with excessive internal water, damage could result. Typically, engineers have weeks to let an engine dry between tests, but to meet the demands of 24-hour turnaround, the team introduced new processes to cut the drying time first to eight hours and then down to six.

One ingredient in the test program's success was its use of a new main engine controller, originally developed for the RS-25 variant that will power NASA's Space Launch System rocket. The controller, designed around modern avionics standards, provided significant flexibility and advanced capabilities to the program. Such capabilities include being able to support new adaptive software to handle anomalies in the engine's operation. A portion of the new software logic was deliberately exercised in the final test.

"With each successful milestone, we're closer to the goal of driving down cost and time to space by an order of magnitude," said Scott Wierzbanowski, DARPA program manager for the Experimental Spaceplane. "For instance, we're targeting the ability to affordably turn the vehicle within a day. If successful, we will be able to launch payloads on demand, which will change the paradigm for how the nation uses space."

In its pursuit of aircraft-like operability, reliability, and cost efficiency, DARPA and Boeing are planning to eventually conduct a flight test demonstration of XS-1 technology, flying 10 times in 10 days, with an additional final flight carrying the upper-stage payload delivery system. If successful, the program could help enable a commercial service in the future that could operate with recurring costs of as little as $5 million or less per launch, including the cost of an expendable upper stage, assuming a recurring flight rate of at least 10 flights per year -- a small fraction of the cost of launch systems the U.S. military currently uses for similarly sized payloads. (Note that goal is for actual cost, not commercial price, which would be determined in part by market forces.)

Source: DARPA, Boeing

Published September 2018

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