Top-Loading Pot Furnaces for Salt Bath Heat Treatment

Heavy-gage, coil-wound, low-watt density heating elements in easily removable radiant panels are located on all four side walls of the heating chamber, the company says. The elements are divided into several zones to provide uniform heat to 1,500°F. Separate thermocouples monitor both chamber and pot medium temperatures. Side-mounted, power-regulating equipment includes a magnetic contactor, a 230- or 460-V to 110-V control transformer, terminal blocks, instrument fuses and power connection terminals. Temperature controls include a Honeywell ¼ DIN microprocessor-based digital time proportioning temperature controller mounted in a separate NEMA 1 enclosure. An over-temperature safety system option prevents thermal runaway. The furnaces are completely wired, assembled and shipped ready for connection to a main power supply.