The horizontal compound superfinishing machine is used for ultra-precision finishing of the surfaces of shaft and disc components such as rollers, ball screws, and gears. It is suitable for ultra-finishing of spherical, cylindrical, and conical rollers, as well as components like valves and rods in hydraulic parts. The superfinishing machine significantly improves the surface quality and precision of the workpieces. It is primarily used in the final manufacturing stage of bearings, especially for the ultra-finishing of rollers, which directly affects the lifespan and reliability of high-end bearings. This superfinisher is a fundamental process tool in modern high-end manufacturing industries, widely applied in precision manufacturing sectors such as machine tool equipment, automotive and aerospace industries, and heavy-duty construction machinery.