vegetable oil screw press oil mill machinery manufacturer in africa,Vegetable Oil Press,Oil Expeller,Peanut Shelling Machine for Sale,Vegetable Oil Press. The oil press/oil expeller is a kind of small screw press to extract oil from vegetable oil seeds. The raw material for automatic oil press could be all kinds of vegetable oil plants. Rapeseeds, peanut, soybean, sesame are the most common materials. Except that, this kind of small oil press can process coconut, plum kernel etc.