Cone crushers are more often used for 2nd, 3rd 4th stage crushing steps (although not always). Cone Crusher Components. The main components of a cone crusher include the main shaft, mantle, concaves, cone, eccentric bushing, drive, crown gear, frame, and tramp release mechanism (mechanically or hydraulically actuated).Due to their design, cone crushers are generally a more expensive investment than impactors are. However, when correctly used, a cone crusher offers lower operating costs than a conventional impact crusher. Therefore, clients crushing hard or abrasive materials are advised to install cone crushers for the final crushing and cubicising stage.The basic components of mobile crushers are almost the same as for stationary ones, but with the added advantage of complete mobility even up slopes as steep as 110 incline. Mobile cone crushers. Mobile cone crushers are traditionally used as secondary, tertiary, and quaternary crushers.