Pit gas quenching furnace is a resistance furnace cycle mode of operation, the maximum operating temperature of 1000 ℃, the long axis and general metal parts for normalizing, annealing, quenching and heat treatment purposes in the air. The main structure of the series resistance furnace furnace shell by part, lining, lid lifting device and electric components and other components. Specifications Model Working Dimensions (mm) heating power (Kw) Operating Temperature (℃) Power phase voltage RJ-75-10 ￠ 800 × 1600 75 1000 3 380 RJ-90-10 ￠ 800 × 2200 90 1000 3 380 RJ-135 -10 ￠ 1000 × 3000 135 1000 3 380 RJ-280-10 ￠ 1000 × 8000 260 1000 3 380