Anca RX7SP grinds small diameter tools

Anca’s RX7SP is an evolution of the RX7 CNC grinder designed for grinding cutting tools with diameters as low as 0.5 mm. Anca international marketing manager Duncan Thompson explains: “There are aspects that make grinding small tools a real challenge. Machine accuracy is obviously critical, but in addition, grinding process issues of vibration, thermal growth, wheel wear and tool runout have a much more noticeable effect. Our engineering team developed solutions to each problem that combine to produce excellent finished tools.” New features added to the RX7 base to make-up the SP model include linear scales that increase the positioning accuracy of the axes; a 3.5 kW HSK spindle that gives both face and taper contact on the arbour for improved wheel runout and positional accuracy; iBalance software to balance the grinding wheels without taking them off the machine; precision V-block Clamp and Steady as standard to minimise tool runout and CTV software cycles to compensate for thermal expansion.