PHOTOGRAPH 837
MODEL TF-606060 TEMPERING FURNACE, Serial No. 740004
for pre-heating prior to welding and post weld heat treatment

-maximum operating temperature: 1450°F
-workspace dimensions: 60" wide x 60"deep x 60" high
-180 KW installed in nickel chrome wire coils supported by a stainless steel framework
-rear wall mounted heat resisting alloy circulating fan powered by a 25-HP motor with V-belt drive; water cooled bearings
-8" thick insulated walls comprised of 3" of 2300°F ceramic fiber and 5" block insulation; 7" floor insulation comprised of 5" of 2300°F firebrick and 2" block insulation
-air operated vertical lift door
-Honeywell Tru-Line programming and recording temperature controller
-SCR power controller
-manual reset excess temperature controller with separate contactors
-recirculating blower air flow safety switch