Going underground 1/5: Jaws or a primary gyratory? - May 8, 2014 . Setting up an underground primary crushing plant requires careful planning. . However, the primary crushing and transportation of ore to the.underground ore crushing,Iron ore mine - Rana GruberUntil 1999 iron ore was only mined by open pit methods. . The ore in the underground mine is transported by trucks and crushed at the new underground.
underground ore crushing