From flintstone to finesse: selecting the right crusher for quarry operations.

The two main considerations in crusher selection are the application and the characteristics of the feed material. Jaw crushers are ideal for the primary crushing of hard, abrasive materials such as granite or recycled concrete to reduce the raw feed materials, usually down to 150 mm, and are efficient and less costly to operate, but are not suitable for smaller material sizing. Cone crushers are best suited for secondary crushing applications, usually to sizes of 100, 150 or 200 mm, but cannot accept all material sizes, will not produce a consistent cubical product and are not suitable for handling clay or metal mixed in with the rock or concrete feed material. Horizontal impact crushers are suitable for contaminated materials and can easily handle clay, dirt or metal in the feed material such as rebar, wire mesh or dowel pins. Horizontal-shaft impactors produce a uniform cubical product and can deliver high reduction ratios. Other factors to be considered in the selection process include the desired tonnes/h for a plant and the number of end-product specifications. Mobile crushers allow the crusher unit to be moved closer to the quarry face, reducing operating costs. Crusher engines and other components are considered in relation to the overall durability of the units.
The two main considerations in crusher selection are the application and the characteristics of the feed material. Jaw crushers are ideal for the primary crushing of hard, abrasive materials such as granite or recycled concrete to reduce the raw feed materials, usually down to 150 mm, and are efficient and less costly to operate, but are not suitable for smaller material sizing. Cone crushers are best suited for secondary crushing applications, usually to sizes of 100, 150 or 200 mm, but cannot accept all material sizes, will not produce a consistent cubical product and are not suitable for handling clay or metal mixed in with the rock or concrete feed material. Horizontal impact crushers are suitable for contaminated materials and can easily handle clay, dirt or metal in the feed material such as rebar, wire mesh or dowel pins. Horizontal-shaft impactors produce a uniform cubical product and can deliver high reduction ratios. Other factors to be considered in the selection process include the desired tonnes/h for a plant and the number of end-product specifications. Mobile crushers allow the crusher unit to be moved closer to the quarry face, reducing operating costs. Crusher engines and other components are considered in relation to the overall durability of the units.