G-18-H Glass and Quartz Annealing Furnace

Cress Manufacturing

G-18-H Glass and Quartz Annealing Furnace

Heating Application

Annealing Glass, Bake out (High Temp. Heat Treating)

Exterior Dimensions WxLxH in.

80 x 40 x 123

Capacity Cu. Ft. (L)

18 (509.76)

Chamber Dimensions WxLxH in.

18 x 18 x 96

Max Input Power (kW)


Max Intermittent Temp


Max Continuous Temp


Heating Elements

High Temp. Alloy Wire mounted in the grooves in the brick walls


1600 lbs

Voltage Requirement

240V (3 Phase AC)

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The Cress G-18-H Glass and Quartz Annealing Furnace - designed primarily for annealing glass -
Also useful as a bake out oven.

CONTROLS: These furnaces come standard with a digital programmable main control and a digital high limit safety control. Solid state power switching to the heating elements, and dual door limit safety switches that interrupt power to the elements when the door is opened. All wiring is complete and ready to be connected to your power source. Input controls allow operator to adjust temperatures of various zones so that uniform temperatures can be had throughout the chamber.

ELEMENTS: High temperature alloy wire elements are mounted in grooves in the brick walls. This provides all around heating and close gradients throughout the furnace chamber.

18 GAUGE CONSTRUCTION Heavy angle steel frame with 18 gauge sheet metal panels form the case. The walls are constructed of 4.5″ of the finest quality insulated firebrick backed up by 1800F block insulation. Counterweight lid opens easily. The lid is insulated with ceramic fiber. This combination of insulation and wall thickness helps to give fast heat up and excellent heat retention for economical operation.

  • 480 3 phase power
  • Data communications package
  • Audible Process Alarm