Big tube tube furnace,BTF-1100C-III Main features: 1)Big tube size , long constant temp. zone, precise temp., suitable for multi-sample sintering or medium experiment. 2)Can put inner tube into the bid size outer tube, make big-area monolayer graphene growing test. 3)The device widely used in the field of semi-conductor, nanometer material, carbon fibre, graphene, etc. with cost-effective feature. Technical Parameters Power Power rated: 12KW (208-240V) Voltage Voltage rated: AC208-240V 50/60HZ Working Temperature Max. Temperature: 1100 °C Continuous working temperature: ?1000? Recommended heating Rate: ?10°C /min Temperature Controller PID automatic control and auto-tune function. 30 programmable segments for precise thermal processing. Built-in protection for the over-heated and broken thermocouple.  Length of heating zone 300+300+300mm Length of constant zone 150+200+150mm Heating Elements Resistance wire, Fe-Cr-Al Alloy doped by Mo Temperature Accuracy +/- 1 °C Processing tube Material:high purity quartz Size: ?150/210/280*1400mm (optional) Two fibrous ceramic tube blocks are included for blocking heat radiation generated from tube center. (Ceramic blocks must be fully inserted into the furnace chamber before heating). Vacuum Flange Material:stainless steel Type:folding flanges Vacuum Pressure 10^-1 pa can be achieved by mechanical pump 10^-4 pa can be reached by molecular pump     Weight 330kg Packing dimension Overall size: 1500*750*1200mm Packing list Tube furnace body Quartz tube Sealing flanges Sealing ring Tube plug Glove Hook Allen wrench Manual Small insurance Optional accessories and consumables Quartz boat MFC Vacuum pump Vacuum gauge Manual baffle valve Bellow tube Thermocouple Support frame

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