When the excavator scoops the unscreened material, the screened material goes into the bucket and rocks are forced up the ramped screen, so that after the scoop, the rocks lie on top of the screen and the screened material lies in the bucket. When the bucket is partially dumped, the rocks roll off the screen first, into a pile or truck, or the side of the trench, then the bucket is dumped further, and the screened material is dumped out, completely separated. The specially designed screen is hinged so that every other finger opens to allow ease of dumping of the screened material. Simply dig, dump rocks, move over, then dump the screened material.There are other excavator screening attachments on the market, but there are none that are as fast and simple as the SpeedScreen Bucket.
The advantages of the SpeedScreen Bucket are as follows:
Increase production: Units in the field have shown that the SpeedScreen bucket can increase your productivity 4 to 6 times as compared to stationary screeners.
Saves having to haul in screened material: Dig the trench for the utility while dumping the rocks in a truck and the screened material in piles next to the trench. After the utility is placed in the trench, the screened material is right there to be used for finishing the job. The rocks may even be used for bedding.
No need to handle the same material over and over: As shown with the above example, instead of digging out the trench, hauling it away, trucking in screened material, or, putting the mixture in a pile, then running the mixed material through a mobile powered screener producing two piles, and then moving the piles back for fill, you can do the whole operation as you dig.
Decreases overhead costs: No setup time and no need for powered screening equipment, maintenance, trailer space, etc..No hydraulics necessary: Other designs of screening buckets require special hydraulic kits and equipment that is expensive and costly to maintain. The SpeedScreen Bucket has no hydraulic components, seals to leak, hoses to break or risk of hydraulic system contamination problems.