This machine adjust speed with stepless regulator, three rough grinding, three fine grinding, two pneumatic polishing and one bottom grinding can be completed in one procession. The controlling system adopts PLC, it can accomplish automatic or manual operation. Processed glass thickness, left bottom thickness(after grinding) and bevel width can be displayed in graph and digit by LCD touch screen. From setting to rough grinding, fine grinding and polishing, it can be finished in one procession.