The Barrel & Screw are spare parts of the Oil Press Machine mainly used for extracting oil from different types of edible seeds. The screw acts as a rotating screw within a barrel to extract oil from seeds. The screw pushes the material forward, compressing it and forcing the oil out through small openings in the barrel. The barrel is a cylindrical cavity where the screw rotates. It is made up of stainless steel and has openings or slots through which the extracted oil can pass. The barrel is designed to withstand the high pressure generated during the oil extraction process.