The difference between colloid mill and homogenizer

**Rotor Mill vs. Homogenizer: Key Differences and Features**

1. **Rotor Mill Advantages:**

- Simple structure and easy maintenance.

- Suitable for high-viscosity and large-particle materials.

2. **Rotor Mill Disadvantages:**

- Variable flow rate due to centrifugal motion, with significant differences for materials of the same viscosity (e.g., paint vs. emulsion).

- High-speed friction generates heat, potentially denaturing materials.

- Surface wear reduces particle size reduction efficiency.

3. **Homogenizer Principle:**

- Shears, compresses, and folds materials using agitator blades.

- High-speed rotor and stator create shearing, impact, and turbulence, breaking particles into 200 µm to 2 µm sizes.

- Operates in a vacuum to remove bubbles generated during mixing.

4. **Comparison with Ball Mill:**

- Homogenizers achieve superior emulsification effects compared to ball mills and cannot be replaced by them.