Model ZX20/80 screw oil press is continuous pressing equipment. It's suitable for extraction of vegetable oil such as cottonseed, corn plumule, peanut, rapeseed, sunflower seed, sesame seed and castor oil plant etc. It's characteristics are double use (once press and preliminary press), low power consumption, small floor space occupation etc. It's the excellent choose of press equipment for the large and middle-size oil factory.