June 22, 2011

No. 905 is an electrically-heated 1200°F (648.8°C) high temperature walk-in oven from Grieve, currently used for heat treating. 120 KW are installed in Incoloy sheathed tubular heating elements. Workspace dimensions are 48″ wide x 180″ deep x 72″ high.

The oven has 10″ thick insulated walls comprised of 2″ of 1900°F block and 8″ of 10 lb/cf density rockwool, an aluminized steel exterior and Type 304, 2B finish stainless steel interior. A 12,500 CFM, 10-HP recirculating blower provides universal front to rear airflow to the unit.

This unit is also equipped with a 7″ insulated floor with truck wheel guide tracks and a flatbed loading truck with a 5000 lbs. capacity. The external frame works with lifting eyes to allow this 18,000 lbs. oven to be moved by a crane. It also features inner and outer gaskets; the inner gasket seals directly against the door plug and the outer gasket seals directly against the front face of the oven.

Controls on No. 905 include a digital programming temperature controller, free standing remote control panel, manual reset excess temperature controller with separate contactors, SCR power controller, strip chart recorder, and recirculating blower safety switch.