To Introduction To A Jaw Crusher. computer aided design of jaw crusher ,basics of jaw crusher 1.1 introduction crushing is the process of reducing the size of solid particles into definite smaller sizes. jaw crushers are major size reduction machines used in mechanical, metallurgical and allied industries. the crusher crushes the feed by some moving units against a stationary unit or against Bill Stiles III (Montana Mine Owner) We recently purchased equipment from Mount Baker Mining and Metals for use at our hard rock mine in Montana. We got the 4 x 8 shaker table and an impact mill. Approximately 90-95 percent of the gold makes its way to the end of the table (super cons) 5-10 percent. Read More.