CNC controlled. It performs internal, external, facing, grinding operations with straight or slanted grinding wheel approachs as well as sequential machining of different diameters with a single workpiece set up: The CNC ......CNC controlled. It performs internal, external, facing, grinding operations with straight or slanted grinding wheel approachs as well as sequential machining of different diameters with a single workpiece set up: The CNC unit monitors and controls: Grinding wheel head traverse feed Z AxisTable longitudinal traverse X AxisHead workpiece rotation+/- 45° continuous A AxisWheelhead rotation +/- 45° continuous B AxisWorkpiece rotation speedWheels speedcollision control systemMeasuring systemWheel dressing diamond control and balanceThe linear support guides with pre-loaded ball circulation screws guarantee very high working riability and precision over long time periods. The positioning control system is by linear transducer.