Jaw crushers are widely used to grind materials such as ores, coal, stone and slag particle size of the work slowly applying a large force on the material to be granulated. Generally this is done by pressing the jaw or between rollers, which together with the correct orientation and direction of force to move or rotate.
The rock crusher squeeze between two surfaces, one of which opens and closes like a jaw. Rock occurs, the machine from above. Pieces of rock are larger than the opening at the bottom of the jaw lodge between two metal plates of the jaw crusher. The opening and closing action, the movable jaw against the fixed jaw continues to reduce the size of the inserted pieces of rock up the pieces small enough to be falling through the opening on the underside of the jaw. It has a very powerful movement. Reduction is generally carried out in several stages, since there are practical limitations on the ratio of the communicating by a single stage.
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