Inert Atmosphere Furnace operates up to 2,000°F.

Press Release Summary:

Providing 36 x 60 x 36 in. workspace dimensions, No. 1039 is equipped with 73 KW ICA wire coils supported by vacuum formed ceramic fiber installed on all interior surfaces. System has roof-mounted, heat-resisting alloy circulating fan powered by 1 hp motor with V-belt drive, water-cooled bearings, and inert atmosphere shaft seal. Suitable for heat treating applications, furnace is constructed with 9 in. thick walls comprised of 5 in. of 2,300°F ceramic fiber and 4 in. of 1,900°F block insulation.

Original Press Release:

2000°F Inert Atmosphere Heavy-Duty Furnace from Grieve

No. 1039 is a 2000°F (1093°C), inert atmosphere, heavy-duty furnace from Grieve, currently used for heat treating turbine components at the customer’s facility. Workspace dimensions of this furnace measure 36” W x 60” D x 36” H. 73 KW are installed in ICA wire coils supported by vacuum formed ceramic fiber installed on all interior surfaces, including door and beneath the hearth.

This Grieve inert atmosphere furnace has a roof-mounted, heat-resisting alloy circulating fan powered by a 1-HP motor with V-belt drive, water cooled bearings and inert atmosphere shaft seal.  Furnace features include 9” thick insulated walls comprised of 5” of 2300°F ceramic fiber and 4” of 1900°F block insulation; 8 ½” floor insulation comprised of 4 ½” of 2300°F firebrick and 4” of 1900°F block insulation. Other features include ¼” plate exterior reinforced with structural steel, ½” steel face plate at doorway with air-operated vertical lift door. Inert atmosphere construction includes continuously welded outer shell, high-temperature door gasket, sealed heater terminal boxes, inert atmosphere inlet, inert atmosphere outlet, inert atmosphere flow meter and manual gas valve.

Controls on No. 1039 include a digital programming temperature controller, a manual reset excess temperature controller with separate contactors, paperless event recorder and SCR power controller.

For more information, please contact:


500 Hart Road

Round Lake, Illinois 60073-2835 USA

Phone: (847) 546-8225

Fax: (847) 546-9210



Attention:  Frank Calabrese

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