oil extraction machine -Sunflower seed, soybean, walnut, peanut, rapeseed -220v, 1.5KW - One person needed Oil press/ oil expeller Features:1.small land- ... press screw, chamber and the oil materials. 3. On the other hand, root diameter of the pressing screw carries larger from one ... moving forwards, but also turns them outwards as well. 5. Meanwhile, particles adjacent the screw will rotate along with ...