Show Largest Rock Crusher In Operation The largest rock crusher In the world was recently thrown Into operation opera-tion In a cement mill at South Pitts burg Tenn and it crushes all tho rock used by a 4000bnrrel plant Tho machlno has an hourly capacity of 800 tons and CO por cent of the product Is In pieces four inches or less and 30 per cent In pieces two Inches or less The crusher Is 19 feet in height and weighs 425000 pounds The hopper Is 20 feet in diameter The operation of this machlno alono I r requires 29 horse power |