Automatic polishing and grinding machines are industrial machine tools used for the processing of surfaces. They are usually equipped with rotating discs or brushes coated with abrasive or polishing agent. These machines can process from different materials such as metal, plastic, wood or glass. By automating the grinding and polishing process, automatic polishing and grinding machines can increase productivity in manufacturing, improve the quality of machined surfaces, and improve working conditions for employees. Automation also enables consistent machining quality, as the machines are able to perform machining at a consistent speed and pressure. There are different types of automatic polishing and grinding machines, such as surface grinding machines, cylindrical grinding machines, polishing machines for metal and wood, grinding machines for glass, etc. The selection of the right machine depends on the type of material to be processed and the desired surface quality.