No. 856 is used for curing composite parts in vacuum bags. Workspace dimensions of this 500°F (260°C) oven measure 42 x 40 x 50”, and 48 KW are installed in Incoloy-sheathed tubular heating elements. A 4200-cfm, 3-hp recirculating blower provides universal airflow to the workload. The universal oven has 4” thick insulated walls and Type 430 stainless steel interior. Features include an integral leg stand and four levels of two 0.375” NPT pipe ports connected to the common manifold. Additional feature include a vacuum gauge and ball valve on each port. Controls include a digital, microprocessor-based, thermocouple-actuated, indicating temperature controller, motor-control pushbuttons, an on-off heat switch and LED pilot lights.