Rotocel extractor is the extractor with a cylindrical shell, a rotor and a drive device inside, with simple structure, advanced technology, high safety, automatic control, smooth operation, less failure, low power consumption. It combines spraying and soaking with good leaching effect, less residual oil, the mixed oil processed through internal filter has less powder and high concentration.It is suitable for pre-pressing of various oil or disposable extraction of soybean and rice bran.