1. The ball mill utilizes planetary motion for high milling efficiency and fine grinding.

2. Variable frequency control allows for selecting the ideal speed based on test results.

3. The inverter features voltage drop and overcurrent protection, providing necessary motor protection.

4. The unit features timed shutdown and automatic timed forward and reverse operation, allowing for flexible selection of single-direction, alternating, continuous, timed, and irregular operation modes to enhance milling efficiency.

5. Four samples of varying sizes and materials can be simultaneously processed in a single experiment.

6. The unit features a low center of gravity, stable performance, compact structure, easy operation, safety, reliability, low noise, zero pollution, and minimal loss.

7. The unit is equipped with a safety switch to prevent the unit from starting with the safety cover open, thus preventing accidents.