HIGH DENSITY CARTRIDGE HEATERS

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JB Heaters’ High Density Cartridge Heater is a versatile “component heater” designed for a wide range of applications. Commonly used in molds, dies, and sealing bars, these cartridge heating elements are designed to fit snugly inside a cavity, efficiently heating solids by reaching high temperatures. One key feature is the ability to incorporate a built-in thermocouple, allowing for more precise temperature control.

The High Density Cartridge Heater comes in various diameters, making it suitable for any cavity. It can be custom-designed with specific cold sections, and lead wires extend from the heater to connect to your controls.

What sets the High Density Cartridge Heater apart is its high compression, which enables efficient heat transfer. Each unit is produced with a ground surface to achieve a precise H7 fit, ensuring optimal thermal performance.

High Density Cartridge Heater
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  • Delivers in: 3-7 Working Days Shipping & Return
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APPLICATION

  • ✦ DIE PLATEN HEATING
  • ✦ DIE CASTING INDUSTRY
  • ✦ EXTRUSION LINE
  • ✦ HOT MELT ADHESIVES
  • ✦ PACKAGING INDUSTRY
  • ✦ PAPER INDUSTRY – EMBOSSING ROLLERS
  • ✦ PREFORM MOLDS
  • ✦ RUBBER MOLDING INDUSTRY
  • ✦ SEAL BARS
  • ✦ SEMI CONDUCTOR INDUSTRY
  • ✦ TEXTILE INDUSTRY – HEATING OF CUTTING KNIVES

Technical Specification

Wattage ± 10 %
Max. Sheath Temperature 750 ° C / 1380 ° F
Insulation Resistance ≥ 5 MΏ at
500V (DC)
Length Tolerance ± 1.5 % , min ± 1 mm
Diameter Range 3 mm to 25.4 mm
Diameter Tolerance -0.02 to -0.06, if not specified
Max. Voltage 480 V
High Voltage Test 1500 V
Max. Surface Load 25 W/sq. cm or 150 W/sq. inch
Thermocouple Type J / K

Construction

The construction of High Density Cartridge Heater positions a nickel-chrome resistance wire precision wound around a magnesium oxide core. It is inserted into a Stainless or Incoloy tube locating the resistance wire close to the sheath. The core is centrally positioned within the tube and filled with magnesium oxide powder. Nickel pins pass through the centre of the core making contact with the resistance wire at both ends. The whole assembly is highly compacted by a swaging operation and thus ensuring excellent heat transfer to the external sheath. One end of the heater is closed with a welded metal end-disc and wire leads exit at the opposite end which is typically closed with a lava seal. A variety of wire leads and lead protection options are available. The Cartridge Heating Element can be supplied with internal thermocouples, mounting fittings and many other options.

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