A brief history of Empire Magnetics products in space

For over 30 years Empire Magnetics has provided electric motors and motor assemblies for space equipment and aerospace applications. During this time we have developed significant relationships with organizations including: NASA, Space Sciences Laboratory at UC Berkeley, Lockheed Martin, Boeing, Anteon, Space Dynamics Laboratory, Space Systems Loral, European Space Agency, and SAIC. Our products can be found on the International Space Station, global satellites, space shuttles, and in space labs and testing facilities around the world.

Due to the confidential nature of many of our partners and their projects, we are unable to share many details. Following is a timeline of a few highlights:

After the Space Shuttle Challenger crashed, Morton Thiokol contracted with Empire Magnetics to provide motors for the pentameters (devices to measure the O-rings while sitting on the launch pads). We delivered a system that functioned without presenting an explosion hazard resulting from the rocket fuel vapors
Empire Magnetics provided a set of motors for the vacuum test chambers at the Marshal Space Flight Center. These vacuum-prepared motors were incorporated into the test equipment used to qualify other products for vacuum compatibility. This equipment was funded via the Smithsonian Institute.
Boeing hired Empire Magnetics build a set of motors with gearboxes and brakes, all carefully specified with space flight requirements. We believe they may have been used for the docking ring on the International Space Station; however, Boeing never revealed the specific function, and we never asked!
For NASA’s Wake Shield Lab Module, (http://www.uh.edu/svec/wsfp-desc.html). Empire Magnetics provided a gear motor assembly that was part of the momentum control system. This assembly was launched, orbited and recovered on three different occasions. There was no maintenance required to our motor assemblies between launches. Joe Pineda, the project engineer, even called to thank us before he retired.
When Hughes Aircraft need vacuum motors to test a DOE satellite, they turned to Empire Magnetics Inc. In order to support a nonstop seventy-day tumble test we developed a liquid nitrogen cooled assembly that worked flawlessly.
When the European Space Agency built the long wave X-ray telescope, Thales Alenia Space, built the craft, while Bicron was contracted to build the calibration system for the scintillators. Empire Magnetics provided the motors that move the cesium sources across the face of these sensors to keep them calibrated. https://en.wikipedia.org/wiki/Infrared_Space_Observatory
Corning OCA was tasked with finding motors that would operate at -200 C and survive 25 G shock loads for the Brilliant Eyes program. Empire Magnetics supplied units that passed all the tests.
For the Japanese communications B Sat II satellite, built by Orbital Space Systems, engineers needed a small actuator that would operate during launch. Due to the G forces it had to be exceptionally stiff. Empire Magnetics designed and built a custom linear actuator using a double ended screw combined with a hollow shafted motor. This arrangement put all the thrust loads on the screw, so the motor only needed enough torque to turn the screw. This resulted in a light weight system that solved the problem.
Goodrich used sets of custom versions of Empire Magnetics size 17 stepper motors for two sets of satellites.
Via Preece Inc, http://www.preeceinc.com came to Empire Magnetics for a set of motor gearbox assemblies to be used in the human habitation area of the International Space Station (ISS). These gear motor assemblies control fluid flows in the lab modules. (See photos.)
Space Station vacuum motors
Space Station cryogenic motors
Hughes Aircraft needed to tumble a large satellite in a vacuum chamber that had to run nonstop for 70 days. Empire Magnetics designed and built a motor gearbox assembly cooled with liquid nitrogen to do the job.
Anteon International need a highly accurate turntable for a satellite test at cryogenic temperatures in a vacuum environment. Using a magnetic drive for the feedback resolver, we solved the problem of dimensional change over the temperature range. This allowed angular position to be measured to better than .008 degrees. (See photo.)
cryogenic vacuum motors
NASA’s JPLpurchased a test motor from Empire Magnetics for proof of concept for a gas sampler to be used on a voyage to Saturn’s moon Titan. The test motor ran successfully for 6 months at cryogenic temperature in vacuum.
For Angelicvm (Chile), we designed and built motor gearbox assemblies intended for a moon rover. (See photos)
Moon Rover motors
Moon Rover gearbox
Installed on the exterior of the International Space Station, the hatch covers of NASA’s Cloud-Aerosol Transport System, (CATS) Lidar remote-sensing instrument are activated with motors built by Empire Magnetics.
Empire Magnetics shipped motors and gearboxes to be installed in the new NIRAC camera scheduled for installation on the International Space Station in Feb. 2018. (See photo)
Space Station satellite camera motors