This series of superfinishing machine processes the surfaces of the bearing rings, the cylindrical rollers, the tapered rollers, the needle rollers, the oil pins, the pistons, and the valve element in the way of centerless through-grinding.

It can significantly improve the surface quality and geometric accuracy on the basis of grinding. With characteristics of high efficiency, high precision and high reliability, it is widely used in bearings, automobiles, motorcycles, oil pump, hydraulic parts and other industries, especially for the convexity superfinishing of the cylindrical and tapered rollers.