Lucifer Furnaces delivers heat-treating furnace to Precision Solutions

Warrington, Pa.-based Lucifer Furnaces, a manufacturer of heat-treating furnaces and industrial ovens, has delivered a Red Devil RD8-KHE24 furnace to Precision Solutions, Richmond, Utah, a machine shop specializing in custom tooling. The dual-chamber unit has working dimensions of 12 by 14 by 24 in. in both the upper and lower chambers.

The upper hardening chamber reaches 2,200 degrees F, while the lower tempering oven heats to 1,200 degrees F. Both chambers are lined with a multilayered 4.5-in. combination of lightweight firebrick hotface insulation and mineral wool backup insulation for energy-efficient operation. The firebrick is precision dry-fit inside the chamber with staggered seams for reduced heat loss while allowing for thermal expansion.

Both chambers contain heating elements comprising coiled, heavy-gauge wire of low watt density mounted in replaceable side wall panels. The lower chamber has a rear-mounted fan for uniform circulation of heat. Hearth plates in both chambers support the work load and protect floor brick.