RJ2 series of high temperature pit furnace is the national standarded energy-saving cycle operations pit furnace, the temperature of 1200℃ rated, mainly for steel, high-speed steel, high manganese steel, high chrome steel, Shaft, pipes and other metal materials and machinery parts in the general atmosphere or simple protection for normalizing, annealing, with heat treatment, such as quenching. Power 15-4900KW; Furnace diameter is Ā300mm-Ā11m, the largest to reach 48m depth.

Structure description:
    RJ2 series of high temperature pit furance structure, the shell are welded by steel plate and steel cylindrical furnace, all of them are used in all enclosed welding. Lining using ultra-light 0.6g/cm3 energy-saving vacuum insulation ball refractory brick building. Lining home with the furnace shell laminated aluminum mat acid insulation, insulation powder expansive space filled. Resistance silk used 0Cr27Al7Mo2 high resistance alloy wire around the spire installed in the furnace of dormant Wire and Bricks. Lid using manual or electric movements. If users need to protect the atmosphere workpiece reduce oxidation, can be installed in a stainless steel lid three Pentanes injection, infusion methanol or kerosene, to produce simple protective atmosphere, in the lower part of the furnace installation of nitrogen gas pipeline, nitrogen-protection or washed out into the flammable gas to prevent an explosion accident. To ensure safe operation in the vicinity of lifting bodies with limit switch, the switch with the high temperature resistance furnace control cabinet Well Interlocking power, lid-power shutdown. When the lid is opened time-switch control to cut off power supply, heating elements at the same time cutting off the power supply to ensure safe operation. Well-type high temperature resistance furnace factory supporting automatic temperature control cabinet, thermocouple.

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Technical parameters:

Parameters Name	Unit	Model
RJ2-20-12	RJ2-45-12	RJ2-50-12	RJ2-60-12	RJ2-75-12	RJ2-80-12	RJ2-80-12
Rating Power	KW	20	45	50	60	75	80	80
Rating Voltage	V	380	380	380	380	380	380	380
Highest Temperature	℃	1200	1200	1200	1200	1200	1200	1200
Working Temperature	℃	1200	1200	1200	1200	1200	1200	1200
Phase Number		3	3	3	3	3	3	3
Hearth size	Dia.	mm	Φ300	Φ600	Φ600	Φ800	Φ600	Φ800	Φ800
Height	mm	700	600	800	800	1600	1000	1600
heating saction		1	1	1	1	2	1	2
heating element		casecade	Y	Y	Y	YY	YY	YY
heating-up time	h	≤2.5	≤2.5	≤2.5	≤3	≤2.5	≤3	≤3.5
lose power	KW	≤8	≤18	≤20	≤24	≤22	≤17	≤32
control accuracy	℃	±1	±1	±1	±1	±1	±1	±1
niformity	℃	±5-8	±5-8	±5-8	±5-8	±5-8	±5-8	±5-8
Maximum Loading	Kg	150	350	350	500	700	800	1200
Weight	Kg	1600	2100	2400	3000	4000	3200	4800

Parameters Name	Unit	Model
RJ2-95-12	RJ2-105-12	RJ2-110-12	RJ2-110-12	RJ2-125-12	RJ2-140-12	RJ2-150-12
Rating Power	KW	95	105	110	110	125	140	150
Rating Voltage	V	380	380	380	380	380	380	380
Highest Temperature	℃	1200	1200	1200	1200	1200	1200	1200
Working Temperature	℃	1200	1200	1200	1200	1200	1200	1200
Phase Number		3	3	3	3	3	3	3
Hearth size	Dia.	mm	Φ1000	Φ1000	Φ800	Φ600	Φ1000	Φ800	Φ600
Height	mm	1000	1200	2000	2500	1800	3000	3500
heating saction		1	1	2	2	2	3	3
heating element		YY	YY	YY	YY	YY	YY	YY
heating-up time	h	≤3.5	≤3	≤3	≤3.5	≤3.5	≤4	≤4
lose power	KW	≤38	≤22	≤23	≤27	≤44	≤56	≤60
control accuracy	℃	±1	±1	±1	±1	±1	±1	±1
niformity	℃	±5-8	±5-8	±5-8	±5-8	±5-8	±5-8	±5-8
Maximum Loading	Kg	1500	1500	4800	5000	6000	4500	5000
Weight	Kg	4600	4000	4800	5500	6200	6400	6500