This series of lathe bed bed for the overall box-shaped three rectangular guide structure, the use of high standard cast iron (HT300) a molding casting, after the second aging treatment, stable performance, the width of the guide rail 1600mm machine main drive by the 75KW DC motor The main motor and the transmission mechanism through the flexible coupling connection, through the mechanical gears and helical gear vice, the power transmitted to the chuck, so that the chuck to achieve the required torque. Shaft diameter, the box with a split structure, the spindle before and after the support of the two bearing structure, so that the radial and axial stiffness, high rotation accuracy. This series of machine tool holders with manual and mobile two functions. The entire turret consists of a large knife frame, a horizontal turret, a turret, a turret and a small turret. The tool holder has three maneuver feeds, the longitudinal feed of the large tool holder, the horizontal feed of the cross tool holder and the longitudinal feed of the upper tool holder. The tailstock consists of upper and lower body, the upper body is equipped with sleeve, spindle, pressure sensor, the lower body is equipped with tailstock fast moving mechanism, stop the body and the hand pressure pump. (Can also choose Ф2000mm and Ф1600mm); C61200 with Ф2000mm heavy-duty manual four-jaw chuck (you can also choose Ф1600mm, Ф1800mm). Ф1600mm Ф1600mm Ф1600mm Ф1600mm This series of machine tools supply two kinds of center frame, that is, a closed center frame and an open center frame.