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Cartridge Heaters

Cartridge Heaters manufactured by Tempco are suitable for many diverse applications. Hi-Density Cartridge Heaters feature a swaged construction suitable for temperatures up to 1400F (760C). Low density Cartridge Heaters are an economical alternative that can be used in applications requiring lower operating temperatures and watt densities.

The Pennybottom  Hi-Density Cartridge Heater for plastic injection runnerless molding has a flat copper end disc to maximize heat transfer to the gate area of probes and bushings.


Tempco Terminator Program

Custom Terminated Hi-Density Cartridge Heaters Fast


The Tempco Terminator Lead Conversion Program guarantees 24 to 48 hours shipping on custom terminated heaters.

How do we do it?

By maintaining over 65,000 Hi-Density Cartridge Heaters in stock in order to offer you over 1000 standard sizes and electrical ratings and 26 lead terminations to select from.

Hi-Density Cartridge Heaters are approved as components under the UL and CSA Recognition Programs. UL Product Category KSOT2, File E65652. CSA File LR43099-4.

Terminator Program
(Hi-Density Cartridge Heaters In-Stock)

Terminator Program PDF


Cartridge Heaters

Hi- Density Cartridge Heaters
(swaged construction)

Hi-Density Cartridge Heaters PDF

Hi-Density Metric Sizes (PDF)

Low Density Cartridge Heaters

Low Density Cartridge Heaters PDF

Hi-Density Immersion Heaters

Cartridge Immersion Heaters PDF

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Hi-Density Bolt Heaters

Bolt Heaters PDF

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Runnerless Molding Cartridge Heaters
(Hi-Density Pennybottom)

Hi-Density Pennybottom
Cartridge Heaters PDF

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OEM Replacement Heaters for
Plastic Processing
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Square Cartridge Heaters

Square Cartridge Heaters PDF

Anti-Seize Coating

(Minimizes oxidation and improves
 heat transfer


Cartridge Heater Terminations PDF
(Complete Guide to
Standard Terminations
Cartridge Heater Engineering Information

Recommendations for improving
the life of Tempco Hi-Density Cartridge Heaters


Common Causes of
Cartridge Heater Failures


Important Installation Considerations


Tempco Electric Heater Corporation
607 N. Central AvenueWood Dale, IL 60191-1452 USA
(630) 350-2252 Fax (630) 350-0232Email: info@tempco.com