This machine adopts triple-roll structure.A feeding roll is installed above the crumbing rolls to make the feeding even and adjustable.The synchronous roll-space adjusting mechanism can adjust the roll space precisely and conveniently. Finely drawn rolls are specially suitable to crumble the materials fine.This machine is fitted with complete and reliable protective device to prevent dry parts from being damaged by hard foreign materials.It has features of high reliability, convenient operation, crumbling into pellets with fine appearance.