Coil Heater

Coil heaters are an advance concept of thermal engineering and are also known as high performance tubular heaters or cable heaters. Coil heaters offers high heating profile and high performance in compact spaces up to temperatures as high as 750°C. Available in Various cross sections and sizes, coil heaters are not only straight and coil form but can be formed into almost in any geometrical shape.

Coil heaters can be closely wound to provide concentrated heat or can be stretched to fulfill distributed wattage needs. Coil heaters can also accommodate integrated thermocouple for precise temperature control and quick response. Thermocouple can be of type ‘J’ and type ‘K’, and can be terminated anywhere within the coil section.

Advantages

  • High heating profile in compact spaces
  • High performance and economical
  • Precise Temperature control
  • Fast response time
  • Integrated Thermocouple
  • Available in variety of coiling and exit styles
  • Sizes

    1.0 x 1.6, 1.3 x 2.3, 1.8 x 3.2, 2.5 x 4.3, 3.4 x 3.4 etc.

  • Sheath Material

    Stainless steel / Incoloy

  • Maximum Sheath Temperature

    750°C

  • Maximum Wattage

    200 to 2000 Watts

  • Maximum Voltage

    415V

  • Wattage Tolerance

    ± 10%

  • Resistance Tolerance

    ± 10% 

  • Length Tolerance

    ± 5% 

  • Minimum Bending Radius

    Twice the Sheath Diameter/Width

  • Unheated Zone Length

    10 mm on bottom end, 50 mm at the terminal end. Larger lengths available on request.

Construction

1.Nickel Chromium Resistance wire for maximum life

2.High Purity magnesium oxide fill selected for maximum dielectric strength and thermal conductivity, highly compacted for maximum heat transfer

3.Stainless steel sheath / Inconel sheath for oxidation and corrosion resistance in wide variety of environment

4.Thermocouple for precise temperature control (type ‘J’ and type ‘K’ thermocouple)

Termination Options

Terminations

Coil Configurations

Coil Configurations

 

Lead Wire Termination Options

Wire Type

Temperature Rating

Maximum Recommended Temperature

Comments

Ultralead

250°C

450°C

Excellent, durable wire, good for high temperature application

Teflon

250°C

250°C

Good dielectric strength

Silicon Rubber

200°C

200°C

Good moisture resistance

Braided Silicon rubber

200°C

200°C

Inexpensive wire good for non abrasive applications.

Fibre Glass

400°C

400°C

Excellent resistance to heat, flame, abrasion, oil, and chemicals.

Excellent dielectric properties.

Applications

  • Zinc Die Casting Machine
  • Packaging Machines- Sealing bar and jaws
  • Plastics and die casting industries -Machine nozzles
  • Hot runner system – Nozzles, Bushings & Distribution plates
  • Tube Extrusion
  • Pipe Forming
  • Small Manifold heating
  • Hot Metal forming dies and punches
  • Semiconductor manufacturing and wafer processing