There are disc type, flat plate, right angle type, external air-cooling, internal air-cooling, water-cooling and other special-shaped. After finishing processing, the surface of cast aluminium electric heater is smooth and without casting defects. The price of constant temperature heating platform can be closely adhered to the heated body. The surface load of cast aluminium heater can reach 1-3W/cm2, and the working temperature is from room temperature to 350 C. It is a kind of heater with uniform heat division. The aluminium alloy material with good thermal conductivity ensures uniform temperature on the hot surface and reduces the temperature difference on the surface of equipment. It has long life, good thermal insulation performance, strong mechanical performance, corrosion resistance and magnetic field resistance. It can save about 30% electricity by adding thermal insulation device to the heat dissipation surface.

1) The working voltage shall not exceed 10% of the rated value;

2) The wiring part should be placed outside the heating layer and insulation layer, and the shell should be effectively grounded.

3) Cast aluminium electric heater should be placed in a dry place. If the insulation resistance is less than 1M due to long-term placement, it can be baked in an oven of about 200 degrees Celsius for 5-6 hours, then it can return to normal.

4) Location and fixing should be done well. Effective heating area must be closely fitted with the heater and Air-Burning should be strictly prohibited. When dust or pollutants are found on the surface, they should be cleaned up and reused in time to avoid heat dissipation and shorten the service life.

5) Magnesium oxide powder at the outlet of the electric heating element should be avoided from being infiltrated by pollutants and water in the use place to prevent the occurrence of leakage accidents.

1. Conditions of use: ambient temperature - 20 ~60 ~and relative humidity < 80%.

2. Electrical strength: It can be tested by sinusoidal AC withstand voltage of 1500V50HZ. No breakdown occurs when withstanding voltage of 1M1N.

3. Leakage current: <0.5MA.

4. Insulation resistance: > 2M.

5. Grounding resistance: <0.1.

6. Power deviation: +5%-10%.