Harvester cleaning machine is a special equipment designed for cleaning low viscosity U-shaped harvesters. It has the characteristics of simple structure, safety and reliability, convenient operation and no impact. It is a special equipment to improve the cleaning efficiency, reduce the labor intensity of workers and realize the mechanization of mine car cleaning. Shandong Zhonghua coal mine car cleaner is used to clean the bottom of the car. They are efficient, thorough, labor-saving, time-saving, car shaping and other effects, and also avoid the damage to the car caused by manual or pneumatic cleaning of the car bottom. In particular, it can effectively improve the coal transportation capacity of coal mines.