Coil Heaters (Cable Heaters)

Advanced tubular cable heater built from compacted MgO, high temperature resistance wire, and a chrome nickel steel tube — with or without built-in thermocouples.

Coil Heaters (Cable Heaters)
Cartridge & Cable Heaters

Coil heaters are an advanced thermal engineering concept, also known as high performance tubular heaters or cable heaters. Basic construction consists of compacted MgO, high temperature resistance wire, and chrome nickel steel tube. They can be constructed with or without built-in thermocouples.

Specifications

Technical Specifications

Sheath MaterialChrome Nickel Steel
Insulation MaterialHigh purity MgO
Heating ElementNiCr 80:20
Thermocouple OptionType J (Fe-CuNi) or Type K (Cr-Al), grounded/ungrounded
Connection WiresStranded nickel wires with PTFE coating
Voltage Range24 to 250 Volts
Power Tolerance±10%
HV Testing800V (bent heater), 500V between T/C and heating element
Insulation Resistance> 5 MΩ | Current leakage < 0.5 mA
Sheath Temperature750°C max | Adapter temp 150°C max
Termination Exit OptionsTangential, Axial, Radial
Reference Data

Standard Specifications Matrix (Sample Diameters)

Nominal DiaMin Dia (mm)Max Dia (mm)Max Wire GaugeMax AmpsMax Volts
1/8"2.973.17245300
1/4" / 6mm6.196.32229300
3/8" / 10mm9.379.981815300
1/2" / 12.5mm12.3412.671815480
3/4" / 20mm18.8919.981426480
Applications

Where It's Used

  • Hot runner nozzles & bushings
  • Sealing and cutting bars
  • Tube extrusion
  • Small manifold heating
  • Hot metal forming dies
  • Wafer processing
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