Fine Rock Crushing with Jaw Crushers
Product of each 20 by 15 is divided, going to two 30 by 5s. Product of 30 by 5s is elevated and screened; that passing a ¼ inch round hole is finished product, as far as crushing is concerned, and is carried to the jigs. The " coarse," 1½ to ¼ inch, goes to three 60 by 2 Multiple Crushers, each with three jaw openings 20 by 2 inches.