Differential regulator with two rollers. The diameters of the two rolls differ from each other and vary the speed of rotation, thus forming the differential motion with the different directions of rotation, ensures that the full cutting and the mixing of materials, the vapor and liquid under stirring sheets. Regulation time can reach 180 seconds, which ensures complete maturation and stability of materials in water. All contacts are made regulator stainless steel. The regulator has the structure of the door opening, which is convenient for operation and maintenance, the angle can be resolved sheets for time management regulation. Designed to produce high quality livestock feed and aquatic feed.