Main features:
1. Furnace chamber is made of  high-purity alumina ceramic fiber. Low heat capacity insulation for high energry efficiency.
2. High rate of heating up: 0-30c/min.
3. Microcomputer PID control enables high precision and constant temperature requirement, with function of temperature compensation and correction.
4. SCR temperature controller is programmable with 2 groups/16 steps, and available to set temperature curve.
5. with electrical leakage protection for safety
6. over-temperature alarm: machine will send out an Alarmwith sound&light When temperature exceeds the set limit.
7. Alumina tube sealed by flange at ends, the quick-opening design is convenient for taking in and out samples. Ending fange equiped with gas inlet and outlet, thus furnace can work under vacuum as well as protective gas atmosphere.
Specifications:

Max. Temperature	1400c
Continuous working max. Temperature	1350c
Heating rate	10-30 c/min
Tube material	Alumina tube
Tube size	Dia 80x1000 Length mm
Heating zone	300 mm
Temperature control	16 steps programmable and PID automatic control
Voltage	AC 208-240V Single Phase, 50/60 Hz
Power	4 KW
Heating element	Resistance wires
Thermocouple	S-type
Chamber atmosphere	Vacuum or Nitrogen, Argon and other gases
Vacuum degree	-0.098MPa
Standard accessories	High temperature gloves, furnace hook, flanges
Warranty	One year warranty (Consumable parts such as chamber and heating elements are not included.)

Reference picture: