this machine is made for grinding the cv joint cage windows. it is a very fast and precise machine: the average cycle time is just 12 seconds. features: precise cage phasing system 3 nc axes 6 high frequency spindle......this machine is made for grinding the cv joint cage windows. it is a very fast and precise machine: the average cycle time is just 12 seconds. features: precise cage phasing system 3 nc axes 6 high frequency spindles for the simultaneous grinding of all the cage windows spindles rotational speed controlled by the nc according to the grinding wheels diameter for a constant cutting speed