rock crusher/stone crusher
A rock crusher/stone crusher is a machine designed to take large rocks and reduce them to smaller rocks, gravel, or rock dust. Rock crushers produce aggregates and ready-to-process mining ores, as well as rock fill material for landscaping and erosion control. They can be used with virgin rock or other materials such as reclaimed concrete. Rock crushers can be mobile (although usually very heavy) machines or they can be fixed installations.
The types of rock crushers contains jaw crusher,impact crusher,cone crusher(spring cone crusher and hydraulic pressure cone crusher),hammer crusher(hammer mill),VSI crusher(vertical shaft impact crusher),gyratory crusher,HSI crusher(horizontal shaft impact crusher).
A jaw crusher consists of a set of vertical jaws, one jaw being fixed and the other being moved back and forth relative to it by a cam or pitman mechanism. The jaws are farther apart at the top than at the bottom, forming a tapered chute so that the material is crushed progressively smaller and smaller as it travels downward until it is small enough to escape from the bottom opening. The movement of the jaw can be quite small, since complete crushing is not performed in one stroke.
