An electrically heated jumbo walk-in oven with a maximum temperature of 500°F (260°C) is being used for heating molds at a manufacturer’s facility. To heat the oven, 360 kW are installed in Incoloy-sheathed tubular elements, and 49,000 cfm from two 20-hp recirculating blowers provide a combination airflow to the workload.
The oven, supplied by Grieve, includes 4” thick insulated walls, a removable top-mounted heat chamber and aluminized steel interior and exterior. Oven controls include a 13,500-cfm powered forced exhauster and other safety equipment required to handle up to 2 gallons of flammable solvent at 370°F (188°C). Also onboard are a digital-programming temperature controller, SCR power controller and motorized dampers on the intake and exhaust for accelerated cooling and rapid purging.