Cartridge Heaters

A reliable source for Electric Heater information and leading Electric Heater Companies & Manufacturers.

The type of localized, interior heating produced by cartridge heaters is used to heat specific parts of machinery used in packaging, die cutting, mold forming, hot stamping, labeling, sealing, printing, fluid heating, food service and many other industries. Read More…

Cartridge Heaters Cartridge heaters are small, cylindrical electric heaters used to provide localized or precision heat to materials and equipment parts in a variety of settings. Similar to immersion heaters, cartridge heaters are usually inserted into a material to heat the surrounding area; unlike immersion heaters, which are usually submerged in water or other liquids, cartridge heaters are inserted into small holes drilled in metal materials and parts that require internal heat. While capable of providing localized high temperature heating, cartridge heaters can also radiate heat throughout the interior of a material or product.

Leading Manufacturers

Danvers, MA  |  978-777-0070

Backer Hotwatt is a superior designer & manufacturer of electric heaters and related heater accessories for various OEM & industrial applications.

Request A Quote

Backer Hotwatt, Inc. $$$

Bristol, CT  |  860-582-6776

For more than 70 years, Ulanet™ has been engineering and manufacturing electric heaters, cartridge heaters, immersion heaters, tubular heaters, miniature strip heaters and bolt hole heaters, as well as industrial heaters and appliance thermostats.

Request A Quote

Ulanet™ $$$

Del Rio, TX  |  830-775-1417

Backer Marathon is your premier manufacturer of electric heaters and a wide range of other heating components. Our inventory includes cartridge heaters, band heaters, coil heaters, and more. We have thousands of standard electric heater models, and our engineers are capable if designing a custom heater for more complex specifications. No matter what component you require, Backer Marathon is committed to finding a solution.

Request A Quote

Backer Marathon, Inc. $$$

Bedford, OH  |  800-774-4450

Radiant Electric Heat is a manufacturer and supplier of medium density, low temperature electric radiant ceramic panel heaters for residential, commercial and office settings. Our infrared products are also being used in many industrial process heating applications. We offer over 50 years of proven performance from our radiant electric heaters.

Request A Quote

Radiant Electric Heat, Inc. $$$

Auburn Hills, MI  |  800-223-5335

Solaronics’ quality electric heaters offer complete solutions for industrial, recreational & commercial buildings. For more than 60 years, Solaronics, a leading heater manufacturer & OEM supplier, has offered heaters that are preferred by architects, engineers, HVAC contractors & building owners when constructing or renovating. Choose from tube heaters, radiant gas heaters, outdoor heaters & more.

Request A Quote

Solaronics, Inc. $$$
placeholder image Backer Hotwatt, Inc. Ulanet™ Backer Marathon, Inc. Radiant Electric Heat, Inc. Solaronics, Inc.

Hot plates, platens, semiconductors, shrink wrap machines and labeling machinery often use internal cartridge heaters to heat specific applicator parts. Plastic and rubber forming processes in particular make extensive use of cartridge heaters and other localized heating systems like strip heaters to assist in the plasticization of materials. Cartridge heaters are available in a wide variety of configurations and compositions to suit the equally wide variety of contexts in which they are applied.

Assembled with similar materials to other types of electric heaters, cartridge heaters are commonly formed from electric coils insulated by ceramic material and encased in a metal sheaths. Insulating materials may also be mica, mineral or fiberglass, depending on the desired wattage and application for the heater.

Insulation is necessary between the heating coil and the sheath because contact between the two materials can cause short-circuiting. Sheaths can be constructed from a variety of materials including aluminum, copper, iron, nickel and stainless steel.

Some cartridge heater configurations are folded in half, allowing the cartridge to expand as it heats, making contact with the material surrounding it on all sides, thereby providing more effective and evenly distributed heat. Engineers and designers must be extremely precise when using cartridge heaters in equipment, making sure to install cartridge heaters with the proper wattage, heat temperature and oxidation effects in relation to the material in which it will be immersed.

Cartridge Heater Informational Video