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Immersion Heaters Screw Plug Immersion Heaters Flanged Immersion Heaters Over The Side Immersion Heaters Pipe Insert Immersion Heaters |
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Tubular Heaters Straight & Formed Tubular Heaters Finned Tubular Heaters |
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Duct Heaters High Temperature Duct Heaters Low Temperature Duct Heaters |
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Circulation Heaters Flange Circulation Heaters Screw Plug Circulation Heaters |
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Flexible Heaters Silicone Rubber Heaters Kapton Heaters |
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Cartridge Heaters High Density Cartridge Heaters |
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Band Heaters Mica Band Heaters Ceramic Band Heaters Mineral Insulated Band Heaters |
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Strip Heaters Mica Strip Heaters Channel Strip Heaters Finned Channel Strip Heaters |
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Coil and Cable Heaters Coil Heaters Cable Heaters |
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Drum Heaters Silicone Drum Heaters Mica Drum Heaters |
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Enclosure Heaters Silicone Enclosure Heaters Tubular Enclosure Heaters |
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Temperature Sensors Thermocouples RTD's |
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Control Panels Enclosures (NEMA 1,4,4x & 12) |
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Optional Features
Go back to Cartridge Heaters
Built-in thermocouples
Cartridge heaters can have built-in "J" or "K" type thermocouples that could be grounded or ungrounded. These thermocouples can be installed at the disc end or the middle of a cartridge heater.
Graphite coating
Cartridge heaters are easier to install and remove from receptacle holes if they are coated with a graphite-like solid lubricant. This material does not increase the outside diameter of the cartridge heater, and is suitable for temperatures up to 750° F.
Moisture and contamination proofing
Cartridge heaters can be protected against moisture and contamination by adding Teflon lead wires and sealing the end of the cartridge heater using epoxy, RTV silicone or Teflon. The temperature limitation is 480° F.
Distributed wattage
Cartridge heaters used as sealing bars or rubber molds, the two ends of a cartridge heater are usually colder than the middle. To overcome this inconsistency and have a uniformly distributed heat source, cartridge heaters could be made to have higher wattages at the ends. 35/30/35 is a common wattage distribution.
Center-less grinding
Cartridge heaters which are to be used in applications where superior heat transfer is required, the tolerance on the outside diameter could be improved to +/-0.001" by center-less grinding.
Zones and cold sections
Cartridge heaters can also be manufactured with cold sections and separate zones that can be controlled independently.
