The traditional grain mill is composed of two grinding pieces running at high speed to crush materials. Friction between static grinding plate, material and dynamic grinding plate is generated. The high temperature of the mill will cause the following results:

1, the temperature of the machine working for a long time is too high for the operator to work continuously;

2. Due to the friction of the grinding disc, the temperature rises, and the materials are roasted and burnt in the crushing process, which affects the original characteristics of the materials. Even due to the high temperature, eating such five-grain flour is easy to get angry;

3. Due to the high temperature of the crushing cavity, the motor temperature is high through the conduction of the motor shaft, and the capacitor or motor is often burned.

4. Oily and sugary materials are in paste or liquid state due to high temperature, which is not convenient for crushing.

5. Because the temperature difference is too large, the ratio of thermal expansion to cold contraction of various accessories is large, and it is easy to cause damage to accessories such as crushing cavity bearings when running at high speed.

6. The sound of high-speed friction of the grinding plate is transmitted through the metal cavity, and the noise is particularly loud;