Colloid mill selection reference and special considerations

When selecting a grinding mill, it is important to consider the type of material being processed:

1. **For Thin Materials**: A circulating tube type mill is recommended. This type allows for automatic, repeated processing and facilitates the connection between upstream and downstream processes.

2. **For Viscous Materials**: A straight-discharge type mill with a scraper is recommended. This design helps handle the sticky nature of viscous materials.

3. **For Hard Materials**: High-hardness steel mills are recommended. These mills use special processing methods to achieve a grinding hardness of up to HV 1400-1600.

4. **For Common Architectural and Casting Coatings**: Coating mills are suitable. These mills have a grinding base made of carbon steel, which makes them cost-effective.

5. **For Thin, Soft Materials**: JML vertical grinding mills are recommended. These mills are ideal for processing materials like fruit tea and beverages. For higher throughput, JMF split grinding mills can be used.

**Special Precautions for Mill Operation**:

* Hard materials such as quartz sand, broken glass, and metal shavings must not be mixed with the processing material and are strictly prohibited from entering the mill during processing.

* During startup, shutdown, and before and after cleaning, water or liquid materials must remain inside the mill. Idle running and reverse rotation are prohibited, as improper operation can severely damage the hard mechanical components, the grinding discs, or cause motor burnout or leakage.