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Pey Series Hydraulic Jaw Crusher

When crush the unbroken material, the load of machine will increase suddenly, the sensor device will direct cylinder to load off, then the cylinder as well as the swing jaw move backward till the unbroken material is discharged.US7341213B2, Thrust pedal of crusher for hydraulic overload protection US6375105B1 en 2002-04-23 , Inc ...

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