A sanding machine is a power tool used to smooth surfaces by abrasion. It typically uses sandpaper or other abrasive materials to remove material from wood, metal, or plastic. Sanding machines come in various types, including belt sanders, orbital sanders, and disc sanders, each designed for specific tasks and materials. These machines are commonly used in woodworking and construction to prepare surfaces for finishing, such as painting or varnishing. By providing a consistent and efficient way to achieve a smooth finish, sanding machines help improve the quality of the final product while saving time and effort compared to manual sanding methods.