Vacuum Rated Motors Have Been Successfully Installed At:
Applications
Observatories
Naval Research Laboratory Table Mountain, California
The mirror is a 56 × 38 cm ellipse constructed of a lightweight honeycomb core aluminum panel and mounted at a 45° angle to the axis of rotation. The mirror is rotated by an Empire Magnetics U42 stainless steel waterproof stepping motor, which is required to hold the mirror stationary to within 0.1° in 110 km/h wind. This motor has been designed to survive in the harshest of weather conditions including being buried in snow and ice at Table Mountain.
Dome A, Antarctica
Motor control of the telescope is provided by a low-temperature NEMA-34 sized stepper motor from Empire Magnetics,
A cut-away cross section of the telescope assembly is shown in Figure 4a, and a photo of the installed telescope at the summit of Dome A, Antarctica is shown in Figure 4b.
Binocular Telescope University of Arizona
US Naval Observatory, Mona Kea
Lick Observatory
Subaru Telescope
Also named Top Cryogenic Company of 2022
“The specific construction of the magnetic circuit is one of the key design features of a successful cryogenic motor – at which Empire Magnetics takes a lead” Read more..
Motors that could survive in space were needed
Frequently Asked Questions (FAQ)
About Vacuum Installations
Learn About Vacuum Rated Motor Selection & Installation
Operating a motor in a vacuum is often perceived as a design challenge. Among engineers, the problems -- outgassing, contamination and temperature -- are well known. What is less well known is that there are now well-developed solutions to each of these problems.
Why Choose Empire Magnetics
Government Projects & Defense Applications
Empire Magnetics has been awarded and completed US Navy contracts in excess of $100,000 as a prime contractor. The Cage code number assigned was OYMU1, CEC code 19665900H. As a subcontractor to RSI/Comsat, SAIC, Lockheed Martin, Westinghouse, General Electric and other prime contractors for the US Government, contracts in excess of $200,000 have been awarded and completed.
Nationwide & International Distributors for Specialty Motors & Complete Motor System Solutions
Empire Magnetics products are distributed by a nationwide and international network of motion control sales professionals. Your local distributor carries the drives and controls, and the accessories needed to build a complete motion control system.