1,400°F Box Furnace Used to Preheat Molds

Grieve’s No. 863 is an electrically heated 1400°F (~760°C) box furnace currently used for preheating molds.

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Grieve’s No. 863 is an electrically heated 1400°F (~760°C) box furnace currently used for preheating molds. The oven features 52 kW installed in nickel-chrome wire coils supported by a stainless steel frame. A heat-resisting alloy recirculating blower is powered by a 7-hp motor with a V-belt drive and provides upward airflow to the oven. Workspace dimensions are 30" × 48" × 30".

Featuring 7"-thick insulated walls with stainless steel covers, the oven was specially built with inert atmosphere construction consisting of a continuously welded outer shell, high-temperature door gasket, sealed heater terminal boxes, inert atmosphere inlet and inert atmosphere outlet. Onboard controls include a motor-operated vertical lift door and a four-point strip chart recorder.