No. 943 Electric Pit Furnace

No. 943 is an electrically-heated, 2000°F top-loading pit furnace from Grieve Corp., currently used on a variety of heat treating applications at a customer's facility. Workspace dimensions measure 24"W x 24"D x 24"H. 26kW installed in nickel chrome wire coils, supported by vacuum-formed ceramic fiber, supply heat to the workload.

This Grieve pit furnace feature 7" thick insulated walls, comprising 5" of 2300°F ceramic fiber blanket and 2" of block insulation. A 6-½" thick furnace floor is made of castable refractory materials.

No. 943 also includes an air-operated vertical lift door and a reinforced ½" steel top plate to protect the unit while loading and unloading occur.

Safety equipment includes an adjustable, thermocouple-actuated, manual reset excess temperature controller, separate heating element control contactors and a door interlock switch.