... quarantine. (5).Three stage pressing for one time is realized by this series machine. (6). Small Area Covering: 10 ~ 20 m2 ... kernel, soybean, etc. Before prepressing, you have to pretreat oilseed by cleaning, screening separation, washing, hulling, softening, flaking, cooking etc. ... , also is the fist step of making edible oil. By using Wind-driven separator, dust removing system, magnetic separation, ...