Primary Crusher Optimisation for Improved Comminution
shovel came the really 'huge' gyratory crusher, with its 457 mm receiving opening. The turn toward really large primary crushers started just a few years before the turn of the century, and in 1910 gyratory crushers with 1219 mm receiving openings were being built. In 1919, Traylor Engineering manufactured the largest gyratory crusher yet ...