The double roll crusher incorporates one one stationary roll and and one movable roll. The movable roll provides relief by moving away from the stationary roll whenuncrushed material is encountered and immediately resets the to the original position. Roll diameters range from 18'' to and roll width up to 120''.

the Maximum reduction ratio of roll crushers is 4:1. The smallest size that can be recognized by a particle of 2 inches is 1/2 an inch. The materials crushed by compression can be suitalely adjusted accoding to the size of of the end product. It is important to note that the largest particle size of the materials inserted should not be more than four times the demension of the gap.