These machines are used in all the Button manufacturing units where Polyster buttons are manufactured by Resin and then Polished in this machine. An Octagonal shaped Barrel is used wherein the buttons along with other polishing agents are fed inside the barrel and rotated at high speeds for a specific time with the help of a motor. The buttons being in contact with the polishing agents get a perfect finish which are then unloaded from the barrel by a motor and then sorted to separate out the buttons. The Barrel is Rubber-lined from inside as the polishing agents are abrasive and corrosive in nature, thus protecting the barrel from corrosion and ensuring long life of the product.