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Question:

what type of crusher is best for mining?

what type of crusher is best for mining?

Answer:

It depends on the type of material, and how fine the material has to be crushed. Generally, a primary crusher is used to break rock blasted or dug from the mine, and might break material down from say 300mm to 50mm. Jaw crushers (which operate by pushing two strong plates together; which crush the rock between them) are probably the most widely used and versatile primary crushers. Gyratory crushers are also very popular and crush more effectively, but are not suitable for as wide a range of materials. Once the material has been put through a primary crusher, it is usually fed to a secondary crusher to reduce size further;say from 50mm to 10 mm. Cone crushers are similar to gyratory crushers, and are very versatile. Impact breakers and ' hammer mills operate differently, and work on a rotating shaft that has heads that impact on the ore. They are simple to operate, but wear more quickly, especially with harder materials. The Wikipedia article on rock crushers is excellent h

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