Lone Star Enterprises builds various sizes of gravity and power scalpers.
As an inexpensive way to protect your mill from foreign material such as rocks and other debris from getting to your mill, we include this option with all new mill orders. It cannot remove all the debris, but will remove most damaging foreign material before it reaches your mill.
Power scalpers do a much better job of cleaning debris from your product by using a drag system over the top of a screen. It drags the debris across the screen and out of the scalper allowing only product to fall through.