Model: KJ-1200MZT ( Three-Zone Vacuum Tube Furnace) Size: ¦ 80( OD) x1200mm ( ID-74mm) Features 1. Operation Temperature: 1100° C, ( 1200° C for short time) . 2. Maximum energy efficiency is achieved by surrounding the chamber with thermal-efficient alumina fiber ceramic insulation. 3. Heavy duty double layer structure with cooling fan. Lower teperature in outside case. 4. PID automatic control via current limiting phase angle fired the resistor, e.g. SCR( Silicon Controlled Rectifier) . 5. Power control with 30 segments programmable. Descriptions Chamber Size ¦ 80( OD) x1200mm ( ID-74mm) Length of Heating 152/ 304/ 152mm Maximum Temperature 1200° C ( for short time) Working Temperature 1100° C ( continuous) Temperature Control 30 steps programmable and PID automatic control Heating Rate 0~ 20° C/ min Temperature Accuracy + / -1° C Heating Element Resistance wire Working Voltage AC 208-240V, Single Phase, 50/ 60 Hz ( or according to your requirement) Max. Power 7 KW Note: there are different chamber sizes for your choice.