The distance um can be adjusted. The distance between the rollers of other types of three roller grinders is adjusted by the front and rear hand wheels, and is adjusted by a unified hand wheel. The distance scale is directly adjusted with coordination, so that the distance between the three rollers can be adjusted between 0.1-140um, this machine produce chocolate to 25 um, capacity up to 25kg per hour.
In order to properly eliminate the work of the roller and the influence of the thermal expansion caused by the friction on the flatness of the contact surface of the roller, a cooling water pipe is installed at the right shaft head of the roller, and a rubber pipe is sleeved at the joint of the water pipe. After the heat exchange of the water through the inner wall of the roller, the water is returned to the water tank from the original hole and flows into the sewer.