The high temperature resistant ceramic heating coil is not made by ordinary mica twisting wire, but by ceramic thread threading, so the power of the product is 0.5-1.5 times higher than that of the ordinary one. The heating body is made of imported round silk pottery, which is twisted into a spring and pierced into ceramic strips. The outer cover is made of stainless steel made in Japan, and the high temperature insulation cotton (aluminium silicate fiberboard) is used in the middle to prevent temperature leakage. Ceramic strips are high frequency ceramics with the characteristics of fast heat transfer, hard and not fragile, high temperature deformation is not easy to aging. Brief Performance of Ceramic Heating Ring: It is mainly suitable for extrusion, casting and downrush mechanical operation temperature up to 450 degrees, maximum surface load of 6.5W/cm. It is characterized by long service life, high temperature resistance, 30% energy consumption reduction, high insulation, extruder, injection moulding machine, film blowing machine is the most suitable electrical heating products. Ceramic heating rings have the advantages of convenient installation, fast heat transfer, good insulation, and production is not limited by the size of models and specifications. High working temperature, fast heating, high thermal efficiency, pollution-free, uniform and accurate heating. Specific advantages are as follows: 1. It has winding property. When heating containers or pipes, it can bend into arc or circle to cover the surface for heating. The price of cast aluminium heating pan, such as heating large workpieces, can adopt partial covering form, and large workpieces can adopt flat covering form. In addition, it can be suitable for the heating of workpieces with various geometric shapes. 2. High working temperature, fast heating, high thermal efficiency, pollution-free, uniform and accurate heating can achieve automatic control. 3. High mechanical strength, good thermal insulation performance, large contact surface with heated objects, long service life. 4. Installation and maintenance are convenient, and the use cost is low. Even if the internal heating material is damaged, the external ceramic devices can still be reused.