Surface grinding machine mainly uses the grinding wheel to grind various materials such as steel, cast iron and non-ferrous metals. According to the material and shape of the workpiece, different clamping and positioning methods can be used. For general planes, electromagnetic chucks can be used or directly fastened to the worktable for grinding; planes, right-angled surfaces, arbitrary angles, cylindrical end faces and other special shapes can be ground on fixtures or multi-functional powerful electromagnetic chucks.