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The crushers are used to reduce the size of the ... Primary crushers are commonly designed to operate 75% of the ... As rock enters the top of the cone crusher, ...

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Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste ...

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Description of Primary Jaw Crusher. The primary jaw crusher is widely used in mining, metallurgical industry, building material, highway, railway and chemical industry.