Refractory Lining
Walls: The furnace side walls are lined with 6" of high strength 2800ºF insulating castable, backed with 3" of insulating
block. The walls are securely anchored to the steel shell with alloy anchors.
Floor: The furnace floor is cast 9" thick with 2800ºF insulating castable.
Heating Elements
The heating element assemblies are a specially designed, tubular-type. The elements are mounted in a ceramic block
that floats on the surface of the bath. The element wiring is terminated in a box with terminal blocks. High temperature pigtails run in steel flex tubing and terminated in either a Twist Lock or Pin and Sleeve plug (depending on KW) is supplied. A corresponding receptacle is provided in the furnace mounted terminal box. This arrangement provides for quick disconnect for customer convenience.
Automatic Temperature Controller
Mounted in the control cabinet is a Honeywell DC 230 series microprocessor based temperature controller featuring digital set point, L.E.D. readout, L.E.D. deviation indicator, and up-scale burnout protection. Supplied with this unit is a type K thermocouple, supported in a stainless steel protection tube and 50 feet of chromel alumel thermocouple lead wire.
