This heater is mainly used for extrusion, casting and down-stroke machines. The operating temperature can reach as high asup to 600℃. The maximum surface loading rate is 8 W/C㎡.Its advantages include fast speed of heating, high rate of heat utilization, excellentgreat energy saving (energy consumption is decreased reduced by 30%), high resistance of high temperature creep, long lifetime, resistance of high temperature and high insulation rate. It is one of the most suitable electric heaters for plastic extrusion and injection machines, plastic hollow and blowing machines and chemical fibre moulding machines.