1. The gantry moving is driven by big modulus, helical gear, double tooth backlash, to ensure high precision processing. 2. The use of double - beam structure that is fixed beam and slide beam, The fixed beam will be connected to the left/right column into the gantry, happens equipment rigidity, Also meet the vary height of the workpiece. 3. The gantry moving and slide beam vertical moving both use double drive structure. More stable and reliable. 4. Spindle box rails using two sides surround type and vertical distribution, The force is more reasonable. 5. The centring device using hydraulic motor drive dual output reducer, drive t-type screw rotation, clamping block synchronized clamping, 6. All servo motors with absolute value encoder, the control system using FAGOR company's best system FAGOR8070, Gantry axis with dual drive synchronous control, high synchronization performance and high precision.