Spiral oil press 1.making cooking oil 2.250-500KG/H 3.power saving up to 40% 4.vacuum filter residue Spiral oil press AdvantageSaving labor: it can save 60% labor for equal output and 40% labor cost per day for one or two people are able to make production. Pure oil quality: the vacuum oil filtering is used to remove residue so as to ensure the pure oil quality and meet the standard of health ...