This machine can be used for rough grinding and precise grinding of surface (the front and the back) of the first layer and the second layer two-lay/suede leather. Features 1. Indexing feed, precise grinding and easy operation 2. Provided different sand paper (cloth) which can be used to dry grind or wet grind the leather, being large in its working width, a piece of leather in its whole size can be grinded at one time, thus the surface of leather can be more smooth, with high productivity and less operation road. Combined with air-flow duster, they are formed into duster sets for leather grinding. Technical Specification.