Series 7000 LI - Fiber Lined Box Furnaces

Bench and floor models designed with lightweight ceramic fiber insulation for energy saving low power input and maximum heating efficiency for operation to 2200°F. Coil wound heating elements fully supported on ceramic rods for rapid radiation with faster heat up rates. This unique design provides easy element access and low cost, individual replacement of the wires. For hardening, drawing, preheating, annealing, brazing, normalizing and special applications in air atmosphere.

Ruggedly constructed industrial furnaces rated for work loads up to 40 lbs. per square foot of hearth area. All models are completely wired, assembled, test fired and shipped ready for connection to main power supply. Compact design, fast installation, and simple, safe, dependable operation.

Standard Features

  • Welded sheet metal shell construction with structural reinforcement.
  • Heavy gauge coil wound low watt density heating elements for longer life.
  • Multi-layered energy efficient lightweight ceramic fiber and mineral wool block insulation for maximum heat storage and minimum heat loss.
  • Elements mounted individually on ceramic rods located on side walls for uniform temperature.
  • Heat up rate to 2000°F in 45 minutes.
  • Easy, low cost element replacement.
  • Hearth plate for load support and floor insulation protection.
  • Horizontal swing door with adjustable latch for positive seal.
  • Safety micro-switch shuts off power to elements when door opens.
  • Honeywell digital temperature controller with type K thermocouple and magnetic contactor.
  • Controls are mounted in separate side mounted NEMA 1 panel and operate on 115 volts.

Options

Floor stands (add 23" to overall H dimension and 10" to W dimension), program controllers, over temperature safety systems, timers, recorders, quench tanks, alternate door arrangements, forced cooling systems, computer interface, special voltages, gloves, tongs and foil wrap.

Specifications

Model Chamber Overall KW Voltage Weight (lbs)
H" W" L" H" W" L"
LI7-A6 6 6 6 24 20 26 1.5 115/1 110
LI7-A9 6 6 9 24 20 26 1.8 115/1 125
LI7-A12 6 6 12 24 20 29 2.8 230/1 145
LI7-A18 6 6 18 24 20 35 3.2 230/1 185
LI7-B9 9 9 9 27 23 29 3.2 230/460/1 165
LI7-B12 9 9 12 27 23 29 4 230/460/1 190
LI7-B18 9 9 18 27 23 35 5 230/460/1 245
LI7-B24 9 9 24 27 23 41 6.8 230/460/1 295
LI7-H12 9 12 12 27 26 29 4.8 230/460/1 248
LI7-H18 9 12 18 27 26 35 6.8 230/460/1 305
LI7-H24 9 12 24 27 26 41 8 230/460/1 370
LI7-H36 9 12 36 27 26 53 11 230/460/3 505
LI7-K12 12 12 12 31 26 29 5 230/460/1 275
LI7-K18 12 12 18 31 26 35 8.5 230/460/1 350
LI7-K24 12 12 24 31 26 41 10.5 230/460/3 430
LI7-K36 12 12 36 31 26 53 12 230/460/3 570
LI7-M18 12 18 18 54 38 35 11 230/460/3 455
LI7-M24 12 18 24 54 38 41 12 230/460/3 550
LI7-M36 12 18 36 54 38 53 14 230/460/3 730

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