950°F Belt Conveyor Oven Used for Heat Treating

Grieve’s No. 831 is a 950°F (510°C) belt conveyor oven currently used for heat treating springs at a customer’s facility.

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Grieve’s No. 831 is a 950°F (510°C) belt conveyor oven currently used for heat treating springs at a customer’s facility. Workspace dimensions are 14" × 54" × 3" ×, and 81,600 Btu/hr. are installed in a modulating infrared natural gas burner to heat the oven chamber, while a 250-cfm, 1/3-hp recirculating blower provides vertical downward airflow to the workload.

The oven has a 12"-long open-belt loading zone and a 54"-long insulated heat zone with recirculated airflow. Other features include a 12"-long open unloading zone; a 10"-wide, 0.041" high-carbon-steel woven-wire conveyor belt with 1/40-hp motor variable-speed drive; 4" insulated walls comprised of 2" of 1,990°F block and 2" of 10 lb/cf density rockwool; aluminized steel interior and exterior; and a digital indicating temperature controller.