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Grabbing |
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"Grabbing" is the ability of a shredder to seize the material and pull it down into the cutters. Grabbing is a function of the size and shape of the hook on the cutter and the size, as well as the weight and texture of the material coming into the shredder. For instance a large, light, smooth object, like a plastic form, may be relatively easy to cut up but have a tendency to bounce or "float" on top of the rotating cutters. In this case it might be necessary to use a larger shredder or add a ram assist to push the material down into the shredder where it can be grabbed and pulled through. A shredder should not grab more than it can shred. There is a saying at SSI that a shredder should only grab what it can shred at one time. Some compressible materials, like carpeting or paper, can be grabbed too easily and can choke the shredder if too much is grabbed at a time. In such a case, one might reduce the hook height on the cutter so the shredder will only grab as much as it is designed for. One can also reduce the batch size or meter feed the shredder, controlling the rate of material going into the shredding table. |
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© 2009 SSI Shredding Systems, Inc. |
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