The General cone crusher breaks material by multi-directional compression between an eccentrically gyrating head and a concave liner, as a secondary/tertiary machine. … Mantle and concave form the cone crusher chamber; coarse/medium/fine cavity profiles are chosen by real feed size and target fraction. … The installation of the 90' mobile primary jaw crusher and mobile cone crusher, for stone crushing and screening in Russia, has been completed. … The role of hydraulic protection and CSS on cone crushers, plus a safe clearing sequence. … Jaw plates in jaw crushers, blow bars in impact crushers, mantle-concave in cones, rotor tips in VSI, liners in cubitzers. Part-to-machine matching and replacement signs. … The closed-circuit system on two separate mobile chassis processes hard and highly abrasive rock with a primary mobile jaw crusher and a mobile cone crusher that raises the cubical product ratio. … The General 944 mobile cone crusher hard stone crushing and screening plant has arrived in Africa. … Its three-stage crushing process comprises a primary jaw crusher, a secondary cone crusher and a tertiary vertical shaft impact crusher.