An oil expeller press (also called a screw press) is a mechanical device used to extract oil from oilseeds and nuts through continuous compression and friction. It's one of the most common methods for small to medium-scale oil extraction, bridging traditional methods and large-scale industrial solvent extraction.
Screw oil press is a compact-structured oil expeller machine used for extracting edible oil from more than twenty kinds of oilseeds such as peanut, soybean, flaxseed, sunflower seed, rapeseed, palm, palm kernel, etc. Different from integrated screw oil press machine, it is more suitable to large-scale cooking oil plants which produce various grades cook