The Underrotary screen machine is developed to remove the electrostatic dust adsorbed by the tablet pressed out by the tablet press. Its design is matched with the tablet press. It can be applied to any type of tablet press and can be used as a variety of special-shaped tablet output equipment. It has high output, high powder removal rate, low noise, easy to use and maintain. It is widely used in pharmaceutical, chemical, food and other industries, and its performance indicators reach the level of similar domestic products.