Colloid Mill Instructions

The JM series micro-grinding mill is a high-precision machine designed for wet-process ultrafine particle processing. It operates through shearing, grinding, and high-speed stirring. The grinding mechanism involves the relative motion of a high-speed rotating surface and a stationary surface, which subjects the material to intense shear and friction forces. Additional forces, such as high-frequency vibration and high-speed vortex effects, help disperse, crush, and homogenize the material.

### Key Features:

- **Applications**: Widely used in food, chemical, daily chemical, pharmaceutical, construction, and other industries for emulsifying, mixing, and pulverizing various materials.

- **Construction**: Comprises a grinding head, rotating base, and motor, with all material-contact parts made of high-quality stainless steel. The dynamic and static grinding blades are the core components, tailored to the material properties.

- **Motor Design**: Equipped with a specialized motor featuring a water-retaining disc on the flange end cap to prevent leakage.

### Operating Precautions:

1. **Setup**: Connect feed and discharge tubes, cooling water pipes, and drain pipes. Ensure the motor rotation is clockwise when viewed from the feed port. Avoid idle operation for more than 5 seconds.

2. **Grinding Wheel Gap Adjustment**: Loosen handles, adjust the ring clockwise until slight friction is felt, then slightly reverse to set the gap. Lock the adjustment ring afterward.

3. **Operation**: Disinfect and clean the machine before use. Add material to the tank and start the machine. Avoid mixing hard materials like quartz to prevent damage to the grinding wheels.

4. **Monitoring**: Pay attention to motor load; reduce feed if overloaded. Shut down immediately if malfunctions occur and resolve issues before restarting.

5. **Post-Use Cleaning**: Thoroughly clean the machine to prevent material residue and mechanical seal damage.

### Maintenance:

1. **Precision Calibration**: After repairs, ensure coaxiality of the housing and spindle with an error ≤0.5mm using a dial indicator.

2. **Disassembly and Repair**: Avoid hammering parts directly; use wooden hammers or blocks. Special tools are provided for grinding wheel disassembly.

3. **Seal Maintenance**: Replace cracked carbide mechanical seals. Polish scratches on a flat surface with ≤200# carbonized silicon abrasive paste.

4. **Regular Maintenance**: Follow material-specific maintenance schedules. Routine operation with unchanged materials allows extended use.

5. **Motor Care**: Refer to the motor's instruction manual for specific maintenance guidelines.

### Technical Specifications:

- **Models**: Range from JML-50 to JMF-200, with varying emulsification fineness (5–40 μm), motor power (1.1–15 kW), and output capacity (0.01–7 t/h).

- **Adjustable Grinding Gap**: 1–0.01 mm for precise control.

- **Cooling and Dimensions**: Equipped with cooling water pipes (1/8"–1/4" diameter) and compact designs tailored to model size.