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Pit Furnace

pit tempering furnacepit furnacethis pit tempering furnacefor metal materials, metal parts for tempering, annealing and other heat treatment. and steel annealing, aluminum alloy, light alloy quenching, solid fusion processing, aging treatment.

pit tempering furnace(pit furnace) structure description:
fd-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 0cr25al5 high resistance alloy wire around the spire installed in the furnace of dormant wire and bricks. lid using manual or electric movements. in order to make workpiece beheated uniformly, the lids are installed with heat-resistant stainless steel shaft and the blower hot air circulating fan. the heating process of the workpiece, hot air in the al-alloy ageing furnace cycles up and down in a high speed to ensure workpiece to be heated uniformly

parameters name unit model
fd-rj2-25-6 fd-rj2-35-6 fd-rj2-55-6 rj2-75-6
rating power kw25355575
rating voltage v380380380380
highest temperature ℃650650650650
working temperature ℃650650650650
phase number 3333
hearth
size		dia. mmφ400φ500φ700φ950
height mm 500 650 900 1200
heating element △ y △ yy
heating-up time h ≤1 ≤1 ≤1.2 ≤1.5
lose power kw ≤4 ≤4.5 ≤7 ≤10
control accuracy ℃ ±1 ±1 ±1 ±1
niformity ℃ ±5-8 ±5-8 ±5-8 ±5-8
maximum loading kg 150 250 750 1000
weight kg 1400 1500 2900 4000
parameters name unit model(2)
fd-rj2-105-6 fd-rj2-135-6 fd-rj2-150-6 fd-rj2-180-6
rating power kw 80 135 150 180
rating voltage v 380 380 380 380
highest temperature ℃ 650 650 650 650
working temperature ℃ 650 650 650 650
phase number 3 3 3 3
hearth
size		 dia. mm φ1200 φ1300 φ1400 φ1500
height mm 1400 1500 1800 1800
heating element yy yy yy yy
heating-up time h ≤1.5 ≤1.5 ≤1.5 ≤1.5
lose power kw ≤18 ≤24 ≤33 ≤42
control accuracy ℃ ±1 ±1 ±1 ±1
niformity ℃ ±5-8 ±5-8 ±5-8 ±5-8
maximum loading kg 1400 2000 2500 3000
weight kg 5200 5800 6900 7700