Carbon Electrodes for Hoffman pair

* External material: cold-rolled steel with anti-bacterial powder coating and internal material: imported high density ceramic fiber. All stainless steel glory hole,make sure the color not change. * Dual ceramic inner chamber and hollow heat insulation ensure that the temperature can go up quickly. Heating rate is about 60℃/min. * Automatic parallel pressure door technology ensures the inner chamber temperature evenness and without leakage under the high temperature. * PID micro digital screen controller,over-temperature alarming and auto-stop. * Safety protection measures: thermocouple failure, cut off power automatically when open the door and over temperature protection to avoid accidents occurring. * Double-shell hollow thermal insulation,the shell not hot and the furnace internal cool quickly.