MI Heating cable

MI heating cable is made of single or multiple alloy heating wires as heat source, high purity high temperature molten crystal magnesium oxide as thermal insulation, seamless continuous stainless steel (304/316 L /825 alloy) or copper tube as sheath, using special production technology. Polyethylene or lower can be added to areas where corrosion is strong.

MI heating cables are also known as MI sheathed mineral insulated heating cables. The inorganic mineral insulation and outer sheath metal sheath of electrothermal alloy wire (heating body) are extended many times to form a high-density solid body. It can meet the demand of high temperature conditions and large heating power (100 W /m), and can withstand the temperature up to 600℃; Conductor resistance ranges from 4ω/km to 25000ω/km with excellent mechanical strength and corrosion resistance. It is mainly used in nuclear industry, construction industry, metal manufacturing industry, tank, container heating, high temperature industrial pipeline heat tracing, process media condensation and viscosity reduction, various industrial electric heaters and other fields.

MI Heating cable classification

MI armored mineral insulated heating cable can be divided into single conductor MI heating cable and double conductor MI heating cable according to its structure. Typically, annealed copper is used as a conductor, dense magnesium oxide as an insulating material, and annealed copper tubes as a sheath. In special cases, a layer of plastic can be extruded from the copper sheath.

1 Stainless steel sheathed mineral insulated MI heating cable.

2. Copper sheathed mineral insulated heating cable.

Copper and nickel alloy sheathed mineral insulated heating cable.

MI Heating cable core and sheath raw materials

According to different heating constructors and temperature requirements, different wire cores and jacket materials can be used according to Table 1 and Table 2.

MI Heating cable core material Table 1

Table 2 Metal jacket materials for MI heating cables