Jaw crushers are mainly used as coarse crushers and medium crushers in mining, building materials, infrastructure and other sectors. According to the width of the feed port, it is divided into three types: large, medium and small. The width of the feed port is greater than 600MM for large machines, the width of the feed port is 300-600MM for medium-sized machines, and the width of the feed port is less than 300MM for small machines. machine. The jaw crusher has simple structure, easy manufacture and reliable operation.

Working principle

The working part of the jaw crusher is two jaw plates: One is the fixed jaw (fixed jaw), which is vertically (or slightly inclined at the upper end) fixed on the front wall of the body; the other is the movable jaw (moving jaw), the position is inclined, and the fixed jaw forms a large and small crushing cavity (working cavity). The movable jaw plate makes periodic reciprocating motion against the fixed jaw plate, sometimes separating and sometimes approaching. When separated, the material enters the crushing cavity, and the finished product is discharged from the lower part; when it is close, the material installed between the two jaws is crushed by squeezing, bending and splitting.

Jaw crushers can be divided into simple swing jaw crushers (simple pendulum jaw crushers) according to the different swing modes of the movable jaw. There are three types of complex swing type jaw crusher (compound swing type jaw crusher) and comprehensive swing type jaw crusher.


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