A belt sander is suitable for removing large amounts of material on large surfaces. Belt sanders are mainly used when sanding floors, walls, or doors, and then provided with a different color or new layer of paint. In contrast to the smaller types of sanders, a belt sander works with a sanding belt that rotates at a certain speed. These sanding belts differ in length, width, and grain size depending on how coarse you want to carry out your sanding job.