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Heating Technologies

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As a world-class leader in thermal processing systems, Harper furnaces can be engineered with a variety of heating and power supply options to ideally fit your process. Harper technologies may utilize electric resistance, gas-fired, induction, and microwave.

Electric Resistance: 200-2700°C

  1. Indirect heating
  2. Materials are tailored to process material requirements
  3. Durable element designs
    1. Alloy (NiCr, Mo, W, FeCrAl)
    2. Ceramic (SiC, MoSi₂)
    3. Graphite

Gas-fired: 200-1500°C

  1. Indirect heating
  2. Fuels (Natural gas, Propane, Hydrogen, Oxy enriched, BioFuel)
  3. High-velocity, self-recuperative, radiant tube, low NOx

Induction: 2000-3000°C+

  1. Indirect heating
  2. High power density
  3. Efficient volatile removal
  4. Durable and proven susceptor design

Microwave: 200-2000C°

  1. Direct heating
  2. Unique coupling provides rapid reaction and energy savings
  3. Typical applications include drying, calcining, pyrolysis, and sintering

Energy Recovery

  1. Integrated into thermal processing systems
  2. Heat-exchangers, Recuperators, Regenerators
  3. Gas:Solid, Gas:Gas, Liquid:Liquid