CG.R SERIES - Grinding machines with moveable centre
Extremely versatile and rigid machine that covers any type of processing. Single-block base of cast iron. With only 3 CNC axis this machine controls the working cycle and also the cycles to dress the operating and the control wheel. The transversal CNC slide with wheel head with the operating wheel is mounted to the base with an inclination of 30°. It makes the structure more compact and more rigid, reducing the distance between the guides and the center of the operating wheel.
The transversal movement of the grinding wheel slide makes it possible to grind details with underhead and the working of hard metal bars with a new oscillating technology, to obtain minimum run-out values.
• CG.R 600/200 and CG.R 600/300 with hydrodynamic spindle for the operating wheel and spindle bearing for the control wheel using shoes in bronze in a camber filled with oil.
• CG.R 600/400 and CG.R 600/500 with special hydrostatic spindle for the operating wheel and the control wheel.
The shaft of the spindle is fix (stator) and the housing is rotating (rotor). This guarantees maximum rigidity. In all models, the wheels are assembled laterally, for quick change of tools. The dressing devices assembled from the front of the wheel make it possible to profile the wheels in correspondence with the line of contact with the workpiece being worked, so that the first workpiece is obtained in tolerance, in a very short times. The particularly simple structure of the CG.R series also ensures great reliability and a low number of maintenance interventions.