JCB Attachments has unveiled a range of crusher buckets designed to work with the JCB line of tracked excavators, from the JS160 to the JS360. There are three base models – the CB60, CB70 and CB90 – with two variants of each of the larger models to suit the power and lifting capabilities of the JS crawler excavator line-up. Shown for the first time at Hillhead this week, the CB90 can crush up to 40 m3 of material in an hour, the CB70 30m3 and the CB60 20m3.
Sustained Crushing Force 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 mounted 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.
Increased Versatility The CB60 is designed to work with JCB’s JS160-190 and offers a capacity of 0.45m3. Two versions of the CB70 are available, both with a 0.60m3 capacity, to work with the JS200-220 and the JS240-260 models. Likewise the CB90 offers two versions, for the JS240-260 or the JS290-360, both have a 0.75m3 capacity.
Crusher buckets are capable of reducing site waste, brick, demolition rubble or rock into a usable material, eliminating haulage and disposal costs. They can reduce material to a hardcore size from 20-120mm (20-100mm on the CB60), also offering a cost effective alternative to an on-site mobile crushing plant.
They are particularly useful in demolition applications, providing an on-site recycling resource and boosting the versatility and utilisation of the JCB excavator. Even demolition waste with reinforcing steel present can be crushed, allowing the steel to be removed and recycled.
Built To Perform The JCB crusher buckets have 30 hour greasing intervals with just two lubrication points. They are performance matched to the JCB excavator range and their use will not invalidate the JCB excavator warranty. In addition each crusher bucket carries its own JCB warranty and is fully covered by JCB’s renowned after sales support service.