Infinitely variable spindle speeds through AC spindle drive.Infinitely variable table slide movement (X-axis) through AC servomotor.Steplessly variable rotational movement of cutter spindle (B-axis) work spindle (C-axis) through AC servomotor.Rotary axes B and C are linked by means of electronic synchronisation through the CNC control system. (no index change gears).Special feature incorporating facility to save the workpiece and cutter in cse of power failure is available on the machine.