CNC Machine for Grinding Shafts with Demanding Geometries

With the VTC 315 DS machine, EMAG provides vertical and simultaneous shaft grinding. In contrast to the standard method, this CNC machine holds the workpiece vertically for simultaneous, four-axis machining by two opposing grinding spindles. The normal forces are canceled out and grinding times for components such as gear shafts with multiple bearing seats can be drastically reduced. When used for synchronous support grinding, the resulting tangential forces that act on the shaft are absorbed by a movable support axis, so even thin workpieces with high infeed rates can be machined.

Both turning and grinding technologies can be used on the VTC 315 DS. The turret can perform turning and milling operations while grinding is located at the second station. Complete shaft production is made possible with cylindrical bearing seats, shoulders and grooves all machined in a single setup. Runout errors are drastically reduced in comparison with machining in separate setups.

As an extremely fast hard machining method, EMAG scroll-free turning ensures maximum productivity for workpieces up to 700 mm in size. Thanks to scroll-free turning, the multi-functional machine enables seal seat machining with the crucial requirement of no tool marks. Dry machining is also possible.