Air Heater

Air heaters feature an open coil of high resistance wire electrically isolated in a stainless steel sheath. Using an open coil for heating is the most efficient type of electric heating and is also the most economically feasible one.

As it exposes the maximum heating element surface area directly to the airflow, it provides fast heat-up time and improved efficiency. Its design facilitates lower maintenance and easy, inexpensive replacement parts.

It is constructed of high-grade nickel-chromium wire coils evenly wounded on mica sheet, placed in the center of an SS304 Sheath, and electrically isolated using a layer of flexible mica wrapped inside of the sheath. These heaters are widely used in hot air dryers.



  • Fast heat up time
  • Increased Efficiency
  • Easy installation
  • Easy and inexpensive replacement



  • Hot Air Dryer
  • Sheath Material


  • Sheath Outer Diameter

    63.5mm, 101.6mm

  • Watt Density

    Up to 77 W/inch2

  • Glass Wool Insulation

    Up to 1200°C

  • Wattage Tolerance

    +5%, -10%

  • Resistance Tolerance

    +5%, -10%



Air Heater Construction1.Nickel chromium Resistance wire coils for maximum heater life evenly wounded for even heat distribution

2.Mica Sheet for holding coils in place and are dielectric, lightweight, resilient and stable high temperatures.

3.Mica Insulation having dielectric property to isolate high resistance coil from sheath.

4.Stainless Steel Sheath for corrosion resistance and high strength.

5.Teflon coated control cable & thermistor cable for superior insulation and suitable for high voltage application.

6.Glass wool insulation for high thermal resistance with low thermal conductivity.