Vacuum Industries GCA Furnace. High Temperature Vacuum Sintering Furnace 1950 C. Vacuum Industries GCA Furnace, 1950 C, Series 3500 Model 12-18-36, 460 volt, dual door access, chamber overall is 36 diameter x 48″ long inside, stainless steel chamber interior, water jacketed exterior, work zone is approximately 18″h x 12″ wide x 48″ long, 10-6 vacuum capability, water jacketed Stokes