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Ceramic Band Heaters

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Ceramic Band Heaters

A helically wound resistance coil made from nickel-chrome wire is precisely strung through specially designed ceramic insulating bricks, forming a flexible heating mat. TEMPCO's style of Ceramic Insulating Bricks offers several benefits including:

  • Excellent dielectric strength at high temperatures with high voltages.
  • Ability to interlock and provide a more rigid structure.
  • Allows for heater widths in smaller increments (1/8").
  • Reduces the chances of damaging internal coils in transit and handling.
  • Allows for easier installation of the heater onto the pipe.

These heaters transmit heat through both conduction & radiation. The element winding is designed to heat the ceramic blocks to the point at which they radiate energy into the barrel as well as conduct energy by being in contact with the barrel - fit is not as critical as in other types of bands

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Ceramic band heaters transmit heat through both conduction & radiation. They are medium-to-high temperature heaters that have 650°C as maximum operating temperature. The ceramic core is housed beneath a stainless-steel sheet with serrated edges. This combined assembly of the Ceramic Band Heater offers a flexible heating system that provides efficient conduction and radiation of heat. The element winding is designed to heat the ceramic blocks to the point at which they radiate energy into the barrel as well as conduct energy by being in contact with the barrel. Fitting is not as critical as in other types of bands. The heat of the Ceramic Band originates from the inner coils that transfer heat through conduction. Ceramic band heaters can be manufactured with different terminal styles, are fully flexible & can accommodate holes and cut-outs. Marathon make 3 types of ceramic band heaters namely energy saving type, perforated type & insulated type.

TECHNICAL SPECIFICATION

 Sheath Material     Aluminium coated or Stainless Steel
Insulation Material     Ceramic Fiber Blanket
Watt Density     Up to 45 W/in2
Watt Ratings     500 – 5000 W
Voltage     120 V & 240 V, single phase, 2 phase and 3 phase
Width      25mm – 250mm
Diameter      40mm minimum, expandable up to  1200mm in 3 parts.
Operating temperature650°C

Maximum Allowable Watt Density in Watt/Sq. Inch

CYLINDRICAL TEMP OC94150205260315370425
1.5-3” I.D.52515046413729
3-10” I.D.47464542383325
2041403936312720

 

Fiberglass Lead & Stainless Steel Braid terminations:

 

 

MARATHON SPECIAL CONSTRUCTIONS:

 

Applications:

  • Plastic injection molding machine.
  • Plastic extrusion machine.
  • Waste incineration.
  • Pipeline heating.
  • Semiconductor industry.

Features:

  • Lower Operating Cost – Less heat escapes to the air and less wattage is required to maintain barrel temperature, due to superior insulation.
  • Heat transfer – Conduction and radiation are used as the means to transfer heat, thus they are less prone to thermal expansion problems and a near perfect fit is not required as with other heaters.
  • Longer Heater Life – All materials used are rated to operate at very high temperatures.
  • Higher Operating Temperatures.
  • Flexible – Easy to install and remove.
  • Uniform heat distribution.