A superfine pulverizer is a mechanical device capable of grinding materials to micron (μm) or even nanometer levels. In industrial applications, it generally refers to equipment that achieves a finished product fineness between 300 and 2500 mesh (approx. 50μm to 5μm).

Most superfine pulverizers utilize mechanical impact, shearing, or air jet collision principles. Materials enter the grinding chamber via a feeding system and are crushed by high-speed rotating blades or airflow. A built-in classifier wheel then separates the qualified fine powder, while coarse particles are returned for further grinding.

They are widely used in pharmaceuticals (e.g., cell-wall breaking of TCM), food (e.g., meal replacement powders, matcha, spices), chemicals (e.g., catalysts, pigments), new materials (e.g., graphite, ceramics), and cosmetics.

Fineness is mainly adjusted by changing the speed of the "classifier wheel" via a frequency inverter. The higher the speed, the greater the centrifugal force, allowing only finer particles to pass through, resulting in a finer powder. Additionally, adjusting air volume and feeding speed also affects the fineness.

For heat-sensitive materials, a water-cooling jacket or cryogenic grinding (using liquid nitrogen) can be used. For flammable and explosive materials, a closed-loop system filled with inert gas (like nitrogen) is typically employed, along with explosion-proof components.

A decrease in capacity is usually caused by: 1. Clogged filter bags leading to insufficient air pressure; 2. Severe wear of blades or liners; 3. High moisture content causing material buildup on walls; 4. Uneven feeding speed.