MI heating cable

Mineral Insulated Heating Cable

Certain heating applications are especially challenging. Mineral insulated heating cable has been specifically designed to offer large power output heating solutions in harsh environments. These sheathed heating cables can withstand high temperatures and pressures even in corrosive atmospheres.

What is a mineral insulated heating cable?

Mineral insulated heating cables consist of one or two metal conductors, such as nickel or chromium, converting electrical energy into heat. The wires are insulated with high quality magnesium oxide and covered with a heat, corrosion and pressure resistant metal sheath material, such as Inconel 600, Alloy 825, or stainless steel

One of the advantages of sheathed heating cable is a constant power output, independent of temperature variations. Temperatures of up to 800 °C can be achieved in environments with an exposed temperature of up to 1000 °C.

Mineral insulated heating cable is a semi-finished product that can be used to make heat tracing cable, heating elements or micro heaters. Kamet also offers a range of these (customized) finished products.

Heater Kamet

MI heating cable types

Mineral insulated heating cables are designed and produced by Okazaki manufacturing company and ARi Industries, both companies work in close partnership with Kamet.

  • Sheathed heating cable can be supplied in different resistance values, ranging from 0.16 Ohm per meter to 46.0 Ohm per meter.
  • MI heating cables are specifically produced for electrical heating systems up to 1000°C.
  • Kamet has a large stock of over 30 different kinds of mineral insulated heating cable that can be applied in a broad variety of industries.
  • Our MI heating cables are typically insulated with Inconel 600, Alloy 825, or stainless steel.
    • Inconel 600 has excellent resistance to general corrosion and stress-corrosion cracking. It can also withstand very high temperatures.
    • Alloy 825 offers an ideal combination of ruggedness, high corrosion resistance and a high temperature resistance.
    • Stainless steel is characterized by high corrosion resistance properties against a wide range of organic acids and alkalis.
  • Our manufacturers Okazaki and ARI Industries will gladly supply custom-made cable upon request. To discuss your bespoke orders please contact us.
More about Heating cable and sheath materials used

How are these cables used?

Mineral insulated heating cables are applied to heat up processes in various industries, such as the semiconductor industry, research facilities, aerospace, and for heat tracing applications. These industries are known for their extreme environments and MI heating cable can be designed to match each challenge. This is Kamet’s particular area of expertise: making our in-house knowledge and skills available to customers in order to come up with the heating product that perfectly matches the application.

Okazaki Manufacturing company and ARi Industries

Kamet’s mineral insulated heating cables are produced by our long-standing partners, Okazaki manufacturing company and ARi industries. With an annual capacity of 10.000 km, Okazaki offers a large production capacity. This, in combination with their operations excellence and 70+ years of exprience, means our mineral insulated heating cables are ensured of the highest quality. Additionally, Kamet also offers mineral insulated heating cables produced by ARi Industries. ARi Industries, located in the USA, is a leading supplier of customized mineral insulated cables and heating solutions.

Read more about Okazaki Manufacturing Company and ARi Industries.

Do you have a question about mineral insulated heating cable?

Feel free to read more about our heating cable products here, or visit our knowledge base for specific questions and answers. However, sometimes you need direct contact with one of our team of experts. In that case you can contact us and we’ll respond as soon as possible.

For more specific questions and answers about mineral insulated heating cables, have a look at our more detailed MI heating cable page or browse through the knowledge base.