After power to the main shaft gear mounted on the spindle with the rotation of the pressing screw , threaded between the oil continues to move forward , because the space squeezed between the bore and the pressing screw gradually reduced ,oil extraction increases, thus increasing the pressure gradually large . In the press process, due to the aircraft system automatically force hot day , through automatic temperature control device, increase the body temperature of the host , thereby reducing labor intensity , body wear, labor, energy saving , time-saving , between fuel particles , oil friction occurs between the parts and generate heat. This constitutes a crushing pressure process , machine for pellets elements , destroy tissue cells fuel oil spill from the oil line , pie cake from the cake between the head and the mouth was launched . When spilled oil flows through the filter barrel above the oil pan , pump the air out of the barrel . Peanut oil press barrels a negative pressure on the oil through the filter cloth , was drawn into the barrel, while diesel was isolated in cloth top, then get is pure oil.