The external cylindrical polishing machine is a device that can polish the outer surface of slender cylindrical workpieces. By rapidly grinding the workpiece surface with a high-speed rotating machine, it can remove rust and other impurities, resulting in a high-luster finish. Depending on the model, external cylindrical polishing machines can be categorized into single-station and multi-station types. A single-station model features one polishing head, while a multi-station model has multiple polishing heads. Both can complete the polishing process for workpieces, capable of polishing 6-12 meters per minute, suitable for rust removal and polishing of the workpiece's outer surface.