Catridge Heaters, Metric Heaters - Specifications
Cartridge Heaters - Optional Features
Cartridge Heaters - Termination Styles
Cartridge Heaters - Operating Temperature
vs Actual Temperature of a Cartridge Heater
Cartridge Heaters Metric - Description
Metric & Imperial high density cartridge heaters are round tubular heaters with electrical terminations on one side. These dependable heaters are made to withstand tough industrial usage. With a tolerance of +/-0.002" on its outside diameter to secure a tight fit inside receptacle holes, and rock hard compaction of MgO insulation through swaging, these heaters can attain 1500ºF sheath temperature. High density cartridge heaters are available with various termination styles and mounting attachments. In high-density cartridge heaters the resistance wire loops are positioned as close as possible to the outside shell. Because the MgO powder insulation around these loops is compacted by swaging and transformed into a very hard medium, heat transmission is very efficient. Metric and Imperial cartridges can have up to 200 w/in watt densities.
Cartridge Heaters are usually supplied with lead wires. The attachment of the leads to the central pins is done internally, in a 3/8” cold section. In excessively hot applications the length of this cold section could be increased. To facilitate installation and avoid excessive air pockets, cartridge heaters are made 0.004” less than the nominal size of the receptacle hole with a tolerance of +/- 0.002”. Metric and Imperial cartridges can be dual-voltage, three-phase, and/or be supplied with a ground terminal. With ten different termination styles, mounting attachments and various optional features, Our high density cartridge heaters are widely used in numerous high temperature applications.