Sieve, Screener, Bucket RS 4-6 for 4-6 ton Excavators
The new range of star screening buckets has been developed to offer a high output screening solution at an affordable price.
Screens out grass, sticks, rocks, concrete ( up to 300mm in diameter) from soil
Sizes from 1 to 30 ton Machines
Working Principle
The bucket is filled in the normal manner, moved to the screening position and powered up by engaging the hammer circuit. During screening the larger fragments are retained in the bucket with the smaller fragments screened through the stars. When screening is finished the hammer circuit is turned off and the bucket moved to the tip area where the retained material is tipped out.
The star bucket has a unique screening action that rotates the material in a similar manner to a rotary / trommel bucket but has the benefit of rotating star discs agitating and clawing at the material as it turns. This is achieved by mounting star shafts on a large arc forming the back and top of the bucket.