OTF-1200X-V is a Five-zone split tube furnace that can create a smooth thermal gradient or one uniform constant temperature zone by adjusting the four-zone temperature up to 1200oC and 870 mm long heating zone. The furnace includes one quartz tube with optional OD of 80, 100, or 130 mm OD, and one pair of vacuum sealing flanges with pressure gauge & ball valve for immediate use. Touch Screen temperature controller is installed for easy programming with 30 segments and +/- 1 oC accuracy. It is an excellent furnace for annealing, diffusing, and sintering samples in various atmospheres. Specifications: Furnace structure Double-layer steel case with two cooling fans, which ensures low surface temperature. Energy-saving high-purity fibrous alumina insulation. Power AC 208-240V Single Phase, 50/60 Hz (50A breaker required) Power consumption 8 KW Max. A power cord is included without the plug Working Temperature Max. 1200 oC < 1 hr. Continuous : 1100 oC Max. Heating Rate: