This machine is designed for producing bevel edge, with bottom edge grinding. The conveyors use short-joint big roller chain system. Grinding wheel are directly driven by high precision ABB motor. The working speed is adjustable by stepless regulator. The front rail is driven by motor for adapting to various glass thickness. The glass thickness and working speed are shown on digital readout. This machine is featured by high efficiency and precision, stable quality, easy operation and low wear.