About Union City Filament Corp.
Established in 1950, Union City Filament has been developing proprietary processes for winding and forming tungsten, molybdenum, rhenium and their alloys into a myriad of designs for over half a century. Our processes make it possible for us to hold the tightest possible tolerances on dimensions and uniformity.
Union City Filament’s products are primarily designed to be electron sources either through direct emission or by heating a dispenser or oxide cathode. Many of our products are also designed to be part of systems that regulate high power energy, and to serve as high temperature mounting supports, springs, and electrically conductive leads.
Today, our filaments are being put to use in the latest mass spectrometers and other analytical sensors, ion sources, vacuum ionization gauges, electron beam devices, vacuum deposition equipment, getters, and specialty lighting applications.
Our heaters are installed in over 150 active US Department of Defense systems including the Patriot Missile and Aegis System. Cathode heaters, manufactured at Union City Filament, provide essential fast warm-up capabilities and high reliability operation for microwave power tubes that reside at the core of today’s most advanced military systems.
In addition, Union City Filament’s products are empowering traveling wave tubes for commercial communications satellites, power grid tubes for radio broadcasting, klystrons for radiation based cancer therapy, x-ray tubes for CT scanners, and magnetrons for marine, airborne, and weather radar.
We are constantly researching new uses for our products like high temperature springs and surgical tools. Regardless of what your end application is, Union City Filament’s expert engineers will work with you to design the best filament or heater to suit your needs.