Heat Treating Small Loads of Low Carbon Steel

Lucifer Furnaces, Inc. (Warrington, PA) recently delivered a bench-style box furnace for batch heat treating small loads of low carbon steel. The Red Devil RD7-KHE24 with 7 kW power heats to 2200 deg F with easy-to-replace wire wound heating elements in removable holders. A horizontal swing door seals the 12 in H x 14 in W x 24 in L chamber. A ceramic hearth plate supports the work load and protects the floor brick. The Honeywell digital temperature controller with safety microswitch and on/off main control switch are housed in a NEMA 1 side mounted panel, and a rear mounted Type K thermocouple senses chamber heat.

This Red Devil Series box furnace is insulated with a combined 4½ in of lightweight hotface firebrick insulation and coldface mineral wool. Refractory is dry fit and easily replaced. Red Devil Series box furnaces can be fitted with optional accessories including an over temperature safety system, gas spring vertical lift door and a base stand. An all-purpose general bench unit, the RD7 series can be purposed to various heat treating operations including hardening, drawing, tempering or annealing of steel.

Red Devil furnaces are completely wired, assembled, test fired and shipped ready for connection to main power supply.

Lucifer Furnaces, Inc., 2048 Bunnell Road, Warrington, PA 18976, 800-378-0095, www.luciferfurnaces.com.