As we all know, the nature of the pharmaceutical industry is unique, quality requirements for pharmaceutical equipment is also high, any link errors are likely to lead to drug quality problems, causing serious consequences. Mixer using mechanical force and gravity, the uniformly mixed together mechanically two or more materials. Mixing machine is widely used in various industrial and daily life. Commonly used mixer and a low viscosity liquid into a gas mixer, high viscosity fluids and pastes mixing machine, the thermoplastic material mixer, powder mixing machine four categories granular solid material. Gas and low-viscosity liquid mixer is characterized by simple structure, and no moving parts, less maintenance overhaul, low energy consumption. Such mixing machinery is divided into airflow stirring, mixing pipe, jet mixing and forced circulation mixing four. Mixer accessories mainly wear-resistant alloy materials, including high-speed stirring blade, stirring wings, wear-resistant liner, mixing arm, stirring shovel, shovel planet, stirring Coulter, a stirring rod, stirring rake like, high viscosity fluids and pastes It was mixed generally have strong mechanical shearing action. The thermoplastic material mixing machine is mainly used for thermoplastic materials are mixed with additives; powdery, granular solid material mixing machine mostly intermittent operation, including the role of both mixing and grinding machinery, such as wheel rolling machines.