1. Machine bed, column, table, headstock and other big parts adopt phenolic sand molding and high-strength cast iron to ensure high rigidity and stable precision.
2. AC servo motor is directly connected to ballscrew pair with coupling enabling X, Y and Z axes move rapidly.
3. X, Y and Z axes adopt high precision linear rolling guideway pair and the mounting surface is scraped manually.
4. High precision ballscrew with preloaded sides can eliminate precision loss caused by thermal expansion.
5. Spindle adopts two-point support; front and rear sides adopt high precision angular contact ball bearing.
6. Spindle has good rigidity and high rotation accuracy; spindle bearing is cooled with the coolant oil in constant temperature tank to ensure reliability in high speed.
7. Headstock is directly driven by high-power AC servo motor with brake to achieve high positioning accuracy.
8. 1° hirth coupling CNC rotary table with hydraulic brake is driven by AC servo motor.
9. X, Y, Z and B axes feedback servo system adopts motor encoder semi-close control.
10. Optional: spindle adopts LICAT gearbox reducer with gear ratio of 1:1 and 1:4, spindle motor is connected to spindle via synchronous belt after reducer to achieve big torque at low speed and big power at high speed.