Series 8300 - High Temperature Dual Chamber Furnaces

Unique “Space Saver” design offers convenience and economy of two independently controlled chambers in one packaged assembly. The upper chamber (Hardening) is equipped with silicon carbide heating elements for operation to 2500°F. The elements are mounted above and below the hearth and fire through an eight step voltage regulating transformer with selector switches to provide maximum element life. The lower chamber (Tempering) is complete with coil wound heating elements, stainless steel liner and fan to recirculate the heat for uniform temperature. Available at operating temperatures of 800°F (88), 1200°F (82), 1400°F (84), and 1600°F (86).

Ruggedly constructed and rated for work loads up to 50 lbs. per square foot of hearth area. All models are completely wired, test fired and shipped ready for connection to main power supply. Available in over twenty standard model sizes.

Standard Features

  • Heavy gauge welded sheet metal single shell construction.
  • Both chambers designed with same working dimensions.
  • Silicon carbide heating elements mounted above and below hearth for uniform heat in upper chamber.
  • Multi-layered energy efficient lightweight firebrick and mineral block insulation for maximum heat storage and minimum heat loss.
  • Coil wound heating elements mounted in easy-to-replace holders located on side walls of lower chamber.
  • Silicon carbide hearth plate for load support and thermal transfer from floor elements in upper chamber.
  • Manual vertical lift upper chamber door and horizontal swing lower chamber door.
  • Safety micro-switch shuts off power to elements and fan when door opens.
  • Honeywell digital temperature controller with type K thermocouple and magnetic contactor on each chamber.
  • Controls and power components mounted in a separate free standing NEMA 1 panel.

Options

Program controls, over temperature safety systems, timers, recorders, quench tanks, alternate door arrangements, forced cooling systems, computer interface, special voltages, gloves, tongs and foil wrap.

Notes

Quench tanks may be stored below furnaces with chamber heights through 9” high.

Specifications

Model Chamber Overall KW Voltage Weight (lbs)
H" W" L" H" W" L"
83-A6 6 6 6 80 32 39 3.5 230/460/1 875
83-A9 6 6 9 80 32 39 4.5 230/460/1 1000
83-A12 6 6 12 80 32 42 6.5 230/460/1 1100
83-A18 6 6 18 80 32 48 8.75 230/460/1 1225
83-B9 9 9 9 90 36 39 8.5 230/460/1 1200
83-B12 9 9 12 90 36 42 10.5 230/460/1 1600
83-B18 9 9 18 90 36 48 14 230/460/1 2000
83-B24 9 9 24 90 36 54 17 230/460/1 2400
83-H12 9 12 12 90 40 42 12.5 230/460/1 1700
83-H18 9 12 18 90 40 48 17 230/460/1 1900
83-H24 9 12 24 90 40 54 21 230/460/3 2300
83-H36 9 12 36 90 40 64 28.5 230/460/3 2600
83-K12 12 12 12 100 40 42 15.5 230/460/3 1800
83-K18 12 12 18 100 40 48 20 230/460/3 2100
83-K24 12 12 24 100 40 54 25.5 230/460/3 2500
83-K36 12 12 36 100 40 64 35 230/460/3 2900
83-M18 12 18 18 100 48 48 27 230/460/3 2300
83-M24 12 18 24 100 48 54 33 230/460/3 2800
83-M36 12 18 36 100 48 64 43 230/460/3 3300
83-M48 12 18 48 100 48 78 52 230/460/3 3900
83-O18 18 18 18 112 48 48 35 230/460/3 3200
83-O24 18 18 24 112 48 54 41 230/460/3 3600
83-O36 18 18 36 112 48 64 53 230/460/3 4200
83-O48 18 18 48 112 48 78 64 230/460/3 4800

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