effect of hardness on gyratory crushing. Effect Of Hardness On Gyratory Crushing. Effect Of Hardness On Gyratory Crushing Gyratory Crusher an overview ScienceDirect Topics The gyratory crusher can, just like a jaw crusher, accept boulder sizes close to 15 m (for the largest equipment) This crusher can handle products with a Mohs hardness that is not necessarily less than 5 As is the case .