921rtNo. 921 is an electrically-heated, 2000°F heavy-duty box furnace, currently used for various heat treatments at a customer’s facility.  Workspace dimensions measure 24”W x 48”D x 24”H.  34KW power installed in nickel chrome wire coils, supported by vacuum-formed ceramic fiber, provides heat to the workload.  An in-door heating element further provides improved temperature uniformity in this furnace.

The unit features 7” thick insulated walls, comprising 5” of 2300°F ceramic fiber and 2” of 1700°F ceramic fiber while the 6-1/2” floor insulation consists of 4-1/2” of 2300°F firebrick and 2” of 1900°F block insulation.  This Grieve heavy-duty furnace has a 3/16” steel plate reinforced shell and 1/2” steel front plate construction.

No. 921 also includes a motor-operated vertical lift door, as well as a digital programming temperature controller and manual reset excess temperature controller with separate contactors, for improved efficiency and safety.

For more information, please contact:

500 Hart Road
Round Lake, IL  60073-2898
Phone:  (847) 546-8225
Fax:  (847) 546-9210
Web:  www.grievecorp.com
Email:  sales@grievecorp.com
Attention:  Frank Calabrese, VP


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