Displaying items by tag: Grieve
No. 1049 is a 1050°F (566°C), cabinet oven with two drawers from Grieve, currently used for annealing or normalizing processes at the customer’s facility. Workspace dimensions of this oven measure 39” W x 102” D x 51” H, with two drawers rated 250 lbs. loading with 36” wide x 78” deep x 15” high loading area. 800,000 BTU/hour installed in a modulating natural gas burner, while a 10,000 CFM, 7-1/2 HP recirculating blower provides horizontal airflow to the workload.
This Grieve oven features 10” thick insulated walls comprised of 2” 2000°F ceramic blanket and 8” of 10 lb/cf density rockwool. Features include a top mounted heat chamber, aluminized steel exterior and Type 304, 2B finish stainless steel interior. Additional features include a rear door for access to workspace and heat chamber, exhaust hood over drawers and motorized dampers on intake and exhaust for accelerated cooling.
The oven includes all safety equipment required by IRI, FM and National Fire Protection Association Standard 86 for gas-heated equipment, including 1800 CFM stainless steel powered forced exhauster. It also meets AMS2750, Class 2 (±10F), Type C (survey thermocouple at hottest and coldest location).
Controls on the No. 1049 include a digital indicating temperature controller, two digital shutdown timers, one for burner and one for oven and a circuit breaker disconnect switch.
No. 885 is a 1400°F electric, inert atmosphere tempering furnace from Grieve, currently used for heat treating weldments at a customer’s facility. Workspace dimensions of this unit measure 24”W x 36”D x 24”H.
42 kW installed in nickel chrome wire coils, supported by a stainless steel frame, heat the workspace, while a heat resistant alloy recirculating blower, powered by a 5-HP motor, provides vertical downward airflow to the workload.
This tempering furnace features 7” thick insulated walls, comprising 1” of 2300°F ceramic fiber blanket, 2” of 1700°F ceramic fiber blanket, 2” of block insulatin and 2” of rockwool insulation. The 6-1/2” thick furnace floor comprises 4-1/2” of 2300°F firebrick and 2” of block insulation. 16 ga. Stainless steel interior lagging and a stainless steel subway grating hearth are also included.
No. 885 has an electrically-operated vertical lift door with an automatic door switch to shut off the heaters when the door is opened.
Grieve’s inert atmosphere construction includes a continuously welded outer shell, a high-temperature door gasket, sealed heater terminal boxes, an inert atmosphere inlet and inert atmosphere outlet, plus a recirculating blower shaft seal.
This furnace also has an inert atmosphere flowmeter and digital programming temperature controller onboard.
For more information, please contact: THE GRIEVE CORPORATION,
500 Hart Road, Round Lake, Illinois 60073-2898 USA. Phone: (847) 546-8225.