The Grieve Corp.
No 931 is an electrically heated, 1250 F (675 C) high-temperature universal oven with workspace dimensions of 25 in. W x 36 in. D x 24 in. H (635 x 914 x 609 mm). Incoloy-sheathed tubular heating elements provide 18 kW power, while a 1000 cfm, 1-hp recirculating blower provides a universal front-to-rear airflow to the load. The oven has 10 in.-thick insulated walls, comprising 2 in. of 1900 F (1040 C) block and 8 in. of 10 lb/ft3 density rockwool insulation, plus an aluminized steel exterior, Type 304 stainless steel interior and a motor-operated vertical lift door controlled by a foot pedal. The oven also includes a digital indicating temperature controller, manual reset excess temperature controller with separate contactors, recirculating blower airflow safety switch, fused disconnect switch and a 10 ft power cord.