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This series of machine tools has the characteristics of compact structure, good rigidity, high precision, strong wear resistance, convenient operation, and high cost performance. It is mainly applied to the surface grinding of all kinds of steel workpieces. With a variety of fixtures for any metal surface, bevel processing. The machine tool material is made of high-strength cast iron cast from high quality resin sand. The direction of the main rail is fully enclosed and the dust cover is closed. The main rail is a static pressure rail, and the rail surface is never worn. Greatly increases the durability and precision stability of the guide rail. This series of gantry grinders is a fixed beam type, which ensures the stability of precision and rigidity of the machine. Grinding head feed is ball screw drive and servo motor drive.