ultrafine crusher is a single machine and also a new type of ore crushing device with high input, high crushing ratio, high output and low energy consumption which can crush three sections. It is reasonably designed and elaborately manufactured, belongs to the advanced crusher machine in the world. Main shaft linkage of PFH ultrafine crusher is adopted a driving component system to conduct cutting from top to exert big rock ore with impact, bending and point pressure in the controlled condition, also conducts rolling from bottom, applies the fine granular ore at a rolling force in the laminating condition, so fulfills forcing as different categories, conforms to mechanical characteristics of rock ore, saves labor and energythe motor through the belt, transmission shaft, bevel gear pair drives the eccentric sleeve to rotate and the moving impact does the rotating swing motion under the action of the eccentric sleeve to make moving impact and fixed impact sometimes be closer or deviation. The materials are being squeezed, crushing in the crushing cavity and finally are discharged from the lower.Numerous facts have proved that the more simple mechanical system structure is, the lower failure rate is, higher reliability and running more stable. In order to ensure the comprehensive performance, the structure of the machine is optimization, higher smooth transmission and more reliable performance