Cold pressing

Cold pressing oil production technology is a kind of oil production technology that directly presses the oil without rolling embryo or steam frying between room temperature and 65 ℃ by low-temperature oil press to obtain oil and cake with unchanged nutritional value and molecular structure. The mechanical principle is that due to the propulsion of the rotating screw shaft in the press chamber, the press material is continuously pushed forward. Due to the shortening of the screw pitch on the screw shaft, the increase of the root circle diameter and the reduction of the inner diameter of the press chamber, the space volume of the press chamber is continuously reduced and the press material is pressed. After the pressed material is compressed, the oil is squeezed out from the gap of the press cage, and at the same time, the pressed material is pressed into cakes and discharged from the end of the press chamber.