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JCB adds crushing technology

First publishedin Aggregates Business Europe
2010 July August
JCB crushing attachment
JCB has added crushing technology to its portfolio with the launch of its new CB crusher bucket range. The 20m3 per hour CB60, 30m3 per hour CB70 and 40m3 per hour CB90 are designed for use with JCB excavators from the JS160 up to the JS360.

Powered by the excavator's standard hydraulic breaker circuit, the crusher buckets use a fixed jaw in the base, with a hydraulically-activated hinged jaw in the roof of the bucket. The gap between the two jaws can be set with shims to determine the size of the finished material.

The crushing action is achieved by the hinged jaw being cycled in and out using an eccentric mount on a shaft across the top of the bucket. This shaft is equipped with substantial flywheels at each end and rotated by a belt from the hydraulic motor.

The flywheels store energy from the motor, smoothing out the power delivery and reducing stress on the machine. This action also generates a more sustained crushing action, increasing productivity.

The JCB crusher buckets have 30 hour greasing intervals with just two lubrication points.

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