Grieve’s No. 987 is an 850ºF electric cabinet oven currently used for baking paint samples. With workspace dimensions measuring 20 × 20 × 20 inches, it features 10 kW installed in Incoloy-sheathed tubular elements to heat the oven chamber, while a 600-cfm, 1/2-hp recirculating blower provides horizontal airflow to the workload.
Other features include 4-inch insulated walls; an aluminized steel exterior; Type 304, 2B stainless steel interior; a silhouette plate with removable cover inside the door opening; and an oven hearth driven by a ¼-hp motor through a gear reducer with a torque-limiting device variable from 1 to 27 rpm. This 19-inch-diameter oven hearth is constructed from Type 304 stainless steel with 1-inch studs on 1-inch centers to support the paint coupons in process.
All safety equipment required for handling flammable solvents is onboard, including explosion-venting door hardware. Controls include a digital, time-proportioning temperature controller and excess temperature controller with separate heating element control contactors. An auto door switch stops hearth movement when the oven door is opened.
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