... -220v-380v, 1.5-4KW - One person needed Oil press/ oil expeller Features:1.small land-using: only need 10-20 ... , sunflower seed and so on.Operating principle of oil expeller/oil press1. When oil expeller is on work, material enters the extruding ... property, damage colloid, increase plasticity, decrease oil’s elasticity, resulting in high oil.Oil press main technical parameters:BV certificate of our ...