It's not very efficient, it's letting long pieces through way too easily. It needs significant tweaking of the shear to make the scrap come out at a more uniform size and to let less of it pass through untouched. This unit probably should be feeding a size separator, and the oversized pieces should be fed into another shredder to cut them down to more uniform sizes. Waste of time and money having the operator pick it back up and reinsert it into the shear.
Thanks for your comments. While both hammer mills and rotary shears have their pros and cons it important to note that the Blue Devil is not a hammer mill shredder and there fore does not use or need a grid to downsize the material. The Blue Devil has 60 individual blades which will cut the material and there fore some pieces will come out longer than others. in this case it is simple and efficient for the material handler to place the longer pieces horizontally back in to the hopper for further downsizing. Although a Hammer mill wit Grid will create smaller pieces with a single pass the initial investment of a hammer mill will be 2 - 3 times that of the Blue Devil and so will the operating costs. You will get a clean dense product which is valued by steel mills with significantly less capital outlay and less maintenance requirements than a similarly sized hammer mill.
Thanks for your comment. Its important to remember that this is a rotary shear and not a hammer mill. Long pieces of thin scrap could come out lo ger than required. In this case the operator simply puts the over sized items back in the hopper for further down sizing. This is much less expensive than buying a second shredder and conveyors and more reliable also.
@@jaycee3718 . Hi Jay, actually the operator has to wait anyway while the shredder works on reducing the load in the hopper. He has plenty of time to put items that need further processing back in the hopper without significantly increasing the processing time.
