Automatic Polishing and Grinding Line is an integrated production line for double-sided polishing, deburring, rounding, rust and oxide scale removal of metal workpieces. It combines polishing, cleaning, drying, demagnetization and rust prevention into one automated process, with PLC control and one-button start. The line supports flexible configuration and customization, delivering stable performance, high efficiency, and consistent surface quality for stamping, machining, grinding, and powder metallurgy parts.