Cartridge Heater

Cartridge heaters are cylindrical electrical heating elements installed in limited spaces in applications requiring high concentration of heat. Protected with a stainless steel sheath, the watt density can reach up to 320 watts per sq. in. and operating temperatures can go up to 1400° F.

These types of heaters are widely used for heating solids such as injection press, heating plates and other various tools or to heat liquids and gas. Cartridge heaters are used in the a wide variety of industries such as in the plastic processing and rubber parts, car industry, food processing industry and are commonly used in the chemical, electronics, medical equipment and nuclear industries.

Cartridge heaters can be manufactured in 3 main technologies, high-density (CCHC), medium range (CCMC) or low-density (CCBC) depending on the application, dimension and watt density requirements. For specific applications such as radiators and towel dryers there are double insulated cartridge heaters. Self-regulated cartridges are ideal for defrosting and evaporators and bolt heaters are typically used for mechanical assemblies.

Please review our conditions of use below.

Trivolt Industries adopts a stringent internal quality control system (QMSM-2009). Every heater is tested for resistance and dielectric. All our heaters are CSA, UL and CE approved.

Conditions of use

• Do not use CCHC in the open air.
• Do not handle the heaters by their cables.
• Ensure proper use of the regulator and the position of the probes.
• The assembly needs to be adopted according to the charge and the temperature. But in the case of a high watt density, it may be necessary to reduce the hole fit.
• Do not install if wattages are too high. Heaters will have a shorter lifespan.
Always use as many heaters as necessary to decrease the watts density (W/in2).
• The use of thermal grease favors heat transfer. Special greases are available to avoid the oxidation of the boring and therefore increase the hole fit during the cartridge replacement. Take care when using grease: it must not be in contact with cables or with the ceramic head.
• Protect power cables from :
  • bending
  • high temperatures
  • moisture
  • grease
  • material absorption
  • Thermal shock
• The hole fit between the casing and the cartridge must be as small as possible to get good results.
• When using CCHC at high temperatures or with an important thermal flow: it is necessary to use a regulator either external (such as a temperature probe installed at about 0.625″ from the CCHC) or internal (such as a CCHC with an integrated thermocouple).
• In case of surrounding moisture or if you don’t use CCHC for several months: proceed with small successive heatings before operating at full use.