Outer polishing machine can be used for rough polishing, fine polishing and mirror polishing of all kinds of round-shape metal ware.Parameters such as polishing length, reciprocating range, polishing time etc.are etc.adjustable or can be set as automatic control.Convenient manipulation, reliable performance, low noise, and brightness of the surface of the polished object, and stable quality of the products, are the main features of this polisher.With its main mechanical properties and technical standards equal to or even well above peer products, this polisher is regarded as the reasonable polishing equipment in metal ware industry.