Mineral insulated heating cables are used where high power output, high exposure temperatures, or extreme resistance to environmental corrosives are required. Mineral insulated heating cables are designed, constructed and approved for use in non-hazardous and hazardous locations. The maximum temperature applicable for the heating cable is up to 1022°F (550°C) and the maximum temperature exposed for the heating cable is up to 1200°F (650°C). If a heating element demands for high temperature then mineral-insulated heating cables are used. They are suitable for heating of pipes, containers, tanks, armatures and many more. Mineral-insulated heating cables are integrated into the ground or into wall constructions made of concrete or similar materials. These insulated heating cables are suitable for anti-freeze, for the preservation or generation of process heat between 400 °C and 600 °C. The primary characteristics of Mineral insulated heating cables are high mechanical strength, waterproof, vacuum-sealed, fireproof, high heating power rates of several hundred Watt per meter heating wire, operating temperatures up to 600 °C and higher, small bending radius that allows a good processing with basic tools and good corrosion resistance.
Double core mineral heating cables are directly mounted at the parts to be heated and can be operated in very corrosive areas due to the stainless steel mantle. The heating wire inside is bedded in magnesium oxide to guarantee insulation towards the outer mantle. A great variety of resistance values allows the set-up of a wide range of double core mineral heating cable lengths and operating voltages. A soldered or welded sleeve connects the double core mineral heating cable to the cold end, also covered with a metal mantle. This homogenous heating construction leads to the connection box and the heating cables are equipped with suitable metal cable glands. The double core mineral heating cables are mounted either directly with tension bands on the parts to be heated, or on metal cuts or perforated plates, where the double core mineral heating cables are layered in meandering shape.
Double core mineral insulated semi-rigid electric resistance wire heating cables are resistance wire heating elements that are electrically insulated using magnesium oxide as mineral to ensure safe electrical insulation with maximum thermal transfer. The double core mineral insulated heating cable is encapsulated in a metal sheath for extreme durability and environmental protection. Double core mineral insulated heating cables are durable and long lasting heating cables capable of heating to very high temperatures. Double core mineral insulated heating cables are used in both ordinary and hazardous locations. They are used for a wide range of surface heating and radiant heating applications. The characteristics of double core mineral insulated heating cables are high temperature capability; high-watt density, high corrosion resistance, and laser welded sleeves provide superior reliability, durable design for use in harsh environments and available sizes.
Double core mineral insulated heating cables are used in tanks, vessels, power generation hoppers, pipe tracing, containers, drums, valves, flanges, metal tubes, radiant heaters, furnaces, floodgate heating, reactors, plate heating, pump heating and continuous heating ovens. Copper sheath, stainless steel sheath, alloy sheath, and others are the various types of double core mineral insulated heating cables available in Asia. Calendaring process resin, residential, and commercial are the various applications of double core mineral insulated heating cables in Asia. Geographically, the double core mineral insulated heating cables in Asia is spread across China, Japan, India, Korea, Saudi Arabia and other regions. The leading players in double core mineral insulated heating cables in Asia are Raychem, SST, Thermon, Bartec, Wuhu Jiahong, Anhui Huanrui, Emerson, Anbang, Anhui Huayang, Eltherm, Chromalox, Isopad, Thanglong Electric and BriskHeat.
Double core mineral insulated heating cables are made up of two live inner wires or filaments which are insulated against one another and the metal sheath with magnesium oxide as insulator. The diameter and the composition of the inner wires influence the resistance of the cabling and therefore the heating power of the heat conductor. A high quality sheath material decides the maximum usage temperature and resistance under various conditions. All variants of double core mineral insulated heating cable and conductors can be bent, wrapped around or embedded as well as brazed according to their high quality material which is individually suited for all types of assembly. Industrialization has led to a steady growth in the double core mineral insulated heating cables in Asia and will continue due to emerging economies and growth in construction sector over the next few years.
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