This series of lathe machine bed adopts high standard cast iron (HT300) one molding casting, guide way width (550mm), after the second aging treatment, it has the feature of stable performance, good rigidity, anti-vibration ability. Spindle bore diameter is 130mm, spindle is supported by three-point with heavy load bearing, rotating stability. Automatic forced circulation lubrication make the transmission system is flexible and effectively cool. Spindle speed change is semi-automatic, automatic 3 gear shift and manual 6 gear shit, total 16 steps. 4-station turret is the standard configuration, it is free lifting and index quickly and easily; the vertical 4,6 station and horizontal 6,8 station and other electric turret can be chosen. The main motor is 11kw high-power AC variable frequency motor. Equipped with Ф380mm standard manual three-jaw self-centering double chuck, according to users’ need different types of manual, pneumatic and hydraulic chuck can be chosen. The Hydraulic system consists of one two-cylinder and one three-cylinder which control spindle six-speed mechanical automatic transmission. CNC system uses the internationally renowned FANUC, SIEMENS or China GSK980TD AC servo control system. The lathe machine adopts semi-closed protection, equipped with emergency stop safety button, when the lathe machine suddenly encountered unexpected power failure or self-failure, due to the special design of the control circuit, it can be self-protection, to ensure that the lathe machine and personnel safety.