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Grieve Corporation introduces No. 821, a 650°F electric inert atmosphere walk-in oven, currently in use for annealing plastic rods at a customer’s facility.
Workspace dimensions inside this unit measure 36” wide x 156” deep x 48” high. 80 kW power is installed in Incoloy sheathed tubular heating elements, while a 7800 CFM, 5 HP recirculating blower provides horizontal airflow across the workloads.An aluminized steel exterior and interior are featured on this unit, which also includes 5” thick insulated walls throughout.
Special construction for inert atmosphere processing includes all the following components: pressure regulator, flowmeter, pressure gauge, internal high-temperature gasketing, bellow-type doorway seal, 1/2” thick cellular silicone rubber atmosphere seal, blower shaft seal, positive latching door hardware, adjustable offset door hinges, outlet with pressure relief, interior seams welded gas-tight and all wall penetrations equipped with compression fittings.
An additional 1500 CFM blower is furnished to pull air through an air jacket on the inner oven for cooling. An oxygen analyzer, 0-5% range, is also provided on this oven.
A flatbed loading truck with 3500 lb. capacity and integral channel support sides, plus a transfer dolly with oven-to-dolly and dolly-to-truck latches, was also provided to the customer.
This entire package was completely designed, engineered, built and fully tested by Grieve.
For more information, please contact:Continue reading
No. 872 is an electrically-heated 1000°F (~532°C) inert atmosphere oven from Grieve, currently used for annealing copper foil parts. 36 KW are installed in Incoloy sheathed tubular heating elements. Workspace dimensions are 36” wide x 48” deep x 36” high. A 2000 CFM, 2 HP recirculating blower provides universal airflow to the workload.
The oven has 8” thick insulated walls comprised of 2” of 1900°F block and 6” of 10 lb/cf density rockwool, plus an aluminized steel exterior and interior. A structural steel base is provided to raise the roller rails to a 20” loading height. These roller rails, mounted on the bottom of the oven workspace, are rated for 2000 lb. loads.
No. 872 features Grieve inert atmosphere oven construction, which includes a pressure regulator, flow meter, pressure gauge, internal high-temperature gasket, all welded construction in the doorway throat, air jacket on inner oven for cooling, ½” thick cellular silicone rubber atmosphere seal, blower shaft seal, positive latching door hardware, adjustable offset door hinges, outlet with pressure relief, interior seams welded gas-tight and all wall penetrations fitted with compression fittings.
A 975 CFM blower with automatic dampers pulls air through the air jacket on the inner oven for cooling, while the oven’s quick-purge system includes a 1200 SCFH flow meter and solenoid to open the outlet.
Controls onboard No. 872 include a recording and programming temperature recorder and fused disconnect switch.
For more information, please contact: THE GRIEVE CORPORATION, 500 Hart
Road, Round Lake, Illinois 60073-2835 USA. Phone: (847) 546-8225. Fax: (847) 546-