Cheap Hammer Mill Gold Refining Metal Extraction Forum
08/11/2021· 55. Nov 8, 2021. 5. It's called a feed mill used on cattle farms, their prone to rusting out just below the hammers. At this point considered scrap. Hog growers use a smaller electric mills. I would not pass rock through this type of mill they're not built for it, copper wire is reasonably soft and brings no harm to the feed mill.