TheHasan machine three adjacent rolls of a three-roll mill (called the feed roll, center roll, and apron roll) rotate at progressively higher speeds. The material, usually in the form of a paste, is fed between the feed roll and the central role. Due to the narrowing space between the rolls, most of the paste initially remains in the feed region. The part that makes it through the first in-running nip experiences very high shear force due to the different rotation speeds of the two rolls. Upon exiting, the material that remains on the center roll moves through the second nip between the center roll and apron roll. This subjects it to an even higher shear force, due to the higher speed of the apron roll and typically, a smaller gap than between the feed and center rolls. A knife blade then scrapes the processed material off the apron roll and the paste rolls down the apron. This milling cycle can be repeated several times to maximize dispersion.

The gaps between the rolls can be mechanically or hydraulically adjusted and maintained. Typically, the gap distance is far greater than the particle size. In some operations, the gap distance is gradually decreased to achieve the desired level of dispersion. The rollers are normally internally water-cooled.

Tripple roll machine Size 4”x 10, 6”x15”,6” x 18”, 6”x 24”,10” x 20” , 10” x 26” , 12” x 26” , 12” x 36” , 15” x 36” , 15” x 45” & 16” x 52”