The automatic oil press 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, plam kernel etc. For rare oil plants, it can be used as an experimental equipments for screw expeller pressing.