Gyratory Crusher Components - 911 MetallurgistMar 17, 2017 . The drive assembly of a crusher may be directly driven from the MOTOR or have a CLUTCH SYSTEM to absorb shock. This will depend upon the size of the equipment. If you remember, earlier in the session I stated that the RPM of a primary crusher was in the 100 to the 200 revolutions per minute range.drive in primary crusher machine,Optimal energy management for a jaw crushing process in deep minesDue to the inefficiency of the jaw crushing machine, whose no- load power consumption is between .. feeder are the main machines used to feed the ROM ore to primary crushers. In this work, an apron feeder is ... drive system (electrical motor and drive transmission) as well as on the power supply systems, a soft stater is.