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1.Limited Vacuum degree:0.01, 2.Ni-Cr -Al resistance heater, 3.recursice and low atmosphere, 4.work temperature:1100 - details see: https://www.machineto.com/vacuum-box-furnace-heated-by-resistance-up-to-1200c-10158784

Model:KJ-1200VB Vacuum Box Furnace

Size: 240x220mm (9.5"x8.6"), (DxH).

Features:

1. High quality Ni-Cr-Al resistance wire as heating element. Max. temperature can reach 1200deg C,

2. High purity quartz liner: 8"(O.D.) x 7.5"(I.D) x 13.4"(Height) (205x190x 340mm),

3. Effective heated chamber: 7.5"(Dia) x 8.5"(H), (7.6 Liter),

4. Stainless steel vacuum flange with two ball valves and vacuum gauge is included for immediate use,

5. Power control with 30 segments programmable,

6. All accessories are included for immediate use,

1) One piece of refractory disk which shall be put into the top of inside quartz liner to protect stainless steel from heat damage,

2) One high temperature gloves using can be used < 900deg C.

Descriptions:

Heating Chamber Size (DxH)	190x220mm (7.5”x8.5”)
Quartz Tube size	205x190x340mm 8"(O.D.) x 7.5"(I.D) x 13.4"(Height)
Working Temperature	100-1200deg C
Temperature Control	30 steps programmable and PID automatic control
Temperature Accuracy	+/-1deg C
Uniformity	+/-2deg C
Heating Element	Resistance wire
Working Voltage	AC 220V, Single Phase, 60/50 Hz (or according to your requirement)
Max. Power	3 KW
Outside Size	510 x 435 x 425mm
Net Weight	40 Kg
Gross Weight	100 Kg