Heating cartridges

We produce all kinds of electric heaters.

Heating cartridges are used in industries where no extreme temperatures are required (footwear industry, food industry, rubber industry, textile industry).


Heating cartridges are made of brass tubes (diameter from 10 to 25 mm; length from 50 to 2000 mm). The tube serves as a protection. The heating spirals (made of high-alloy resistance wire) lie in steatite ceramics notches and are coated with silica sand.

  • Is either one-sided (both poles are at the same end of the heater)
  • two-sided or
  • with one pole (at low voltage).

Our heating cartridges

We offer a wide range of standard heating cartridges for immediate delivery. Our heating cartridges may be equipped with various cables and connectors. All heating cartridges are designed in such way that they can be adapted to your needs and specifications. They can also be equipped with various accessories, such as flanges, rings, clamps, etc.

Structure of the heating cartridge

Brass or prochrome pipe with a diameter from 10 to 25 mm and length from 50 to 2000 mm surrounds and protects the heating helix, which is made of strongly alloyed wire resistive to high temperatures. The heating helix is set in the grooves of a steatite ceramic and surrounded by quartz sand.

Special features

The bore can be up to a maximum of 0,2 mm from the diameter of the heater, in order to ensure faultless operation.

How is the heating cartridge built?

A long-life ceramic body is inserted into a tube that withstands constant temperature fluctuation and boasts the best possible thermal conductivity. The resistive wire is installed inside the ceramic body and is of the highest quality. The Kanthal D heating wire is used for the production of heating inserts due to its high temperature tolerance. It is filled with verified granulometric magnesium oxide that covers the internal part of the heater, which ensures perfect conductivity between the heating wire and the heater. Elektromehanika Hožič produces insert heating cartridges of all designs. Heating cartridges are usually used for heating tools, heating of metal objects, and are usually inserted into bores. All heating cartridges are designed according to your requirements for closures, threads, plates, flanges, etc.

Heating cartridges with sensors

Heating cartridges with installed thermocouples may be equipped with the thermocouples of your choice. The latter facilitate monitoring and control of the heating process. Thermocouple types K (Ni CrNi) or J (Fe Co) may be installed. Heating cartridges are suitable for heating up to 350 °C and may be custom made for higher temperatures. Our heating cartridges are made of high quality stainless steel or brass pipes.


All of the main characteristics of a desired heater/cartridge (voltage, power, diameter, length of the tube, length of the connection, for two-sided connections also whether wire or screw connection, data on rims) have to be specified in the order. Heaters have code numbers for ordering. The code contains all the information needed to make an order.


Standard voltages are 110 V, 220 V and 380 V. The only limited parameter of the heater is its power.

Table of maximal allowed power of the heater depending on the length, voltage and diameter of the tube:

Patron grelec tabela grelcev
*Table of maximal allowed power of the heater depending on the length, voltage and diameter of the tube
You wish to order a heater: length 200 mm, diameter 18 mm, voltage 220 V, power 300 W. First take a careful look at the table below and see whether such heater is available, then decide about the length of the connection and write down the code number (0.220.300.18.200, l is 500 mm).

Proposition for heating cartridges

Contact us, using the form below