Cylinder granulator (i.e. drum granulator) is a kind of granulating equipment which makes granules from the mixture by rotating the cylinder, which consists of base frame, cylinder, transmission device, bracket wheel, connecting shaft, etc. When working, the gear motor drives the sprocket to drive the bracket wheel to rotate. When working, the gear motor drives the sprocket wheel to drive the bracket wheel rotation, under the action of friction, the bracket wheel driven by a certain angle of rotation of the cylinder at a low speed, under the action of friction, centrifugal force, the mixed material with the wall of the simple rise to a certain height, and then rolled down under the action of gravity, the rolling material and the rise of the material produced by the relative movement of the rolling into a ball, the material ball along the periphery of the rolling at the same time, along the axis of the cylinder and the direction of the high-end to the low end of the movement, so that the finished particles from the low end of the discharge, and so on. Thus the finished particles are discharged from the low end.