The motor transmits through belt, drives the moving jaw to do periodic motion towards the fixed jaw by the eccentric shaft. The angle between toggle plate and moving jaw plate increases when mobile jaw moving. So the mobile jaw moves towards the fixed jaw. The stuff will be crushed in this process. The angle between toggle plate and moving jaw decreases when moving jaw moves down, the moving jaw moves leaves fixed jaw by pulling rod and spring, the final crushed stuff will be discharged from the outlet. Main Features for China small portable stone jaw crushers machine mini cement plant price 1. Simple structure, easy maintenance; 2. High crushing ratio, even output granularity; 3. High reliability, low investment; 4. Low noise, less dust. 5. Big capacity