Size is 200x200x200mm (8″x8″x8″), (WxHxD), Operating Temperature is 1600℃ (1700℃ for short time), Maximum energy efficiency is achieved by surrounding the chamber with thermal-efficient alumina fiber ceramic insulation, Three sides MoSi2 heating rod for fast and uniform heating, Heavy duty double layer structure with cooling fan. Lower teperature in outside case, PID automatic control via current limiting phase angle fired the resistor, e.g. SCR(Silicon Controlled Rectifier), Power control with 30 segments programmable, Vent port (gas outlet) installed on the top for gas flow.