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.
Another unique feature of the Lloyd star screening bucket is the light weight, flexible, self cleaning, polyurethane stars.
The rotating and folding action within the bucket along with the flexible stars afford many benefits.