• L & L Special Furnace Co Inc

Heat Treating Furnace, Dual Chamber

L & L heating furnace QD Series dual chamber heat treating furnaces feature a 2350°F (1285°C) high heat chamber for hardening, and a 1250°F (675°C) re-circulating oven for tempering. The over/under configuration saves floor space. The hardening furnace is mounted on top with the tempering oven below. Agitated and heated quench tanks are optional. The furnaces achieve high precision by featuring highly accurate controls, mercury contactors for fast cycle times, two-zone control (top and bottom) on the hardening furnace, and very even spacing of elements. The tempering oven features a powerful fan and re-circulation muffle for high uniformity. Features: high temperature uniformity, two zones and even element placement, efficient multi-layered insulation, heavy duty integrated case, l fan and re-circulation muffle, ceramic hearth, double pivoted plug doors, digital PID control and high limit system.