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Crusher
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Eagle Crusher Inc
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Crusher is a machine considered to decrease large rocks into smaller rocks gravel and may be used to reduce the size of waste materials.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 materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated. Crushing is the process of transferring a force amplified by mechanical advantage through a material made of molecules that bond together more strongly, and resist deformation more, than those in the material being crushed do.

Crushers are used in a wide variety of applications, including mining, aggregate production, construction, demolition, and recycling. Jaw crushers, gyratory crushers, and cone crushers are the most commonly used types of crushers. Jaw crushers are used for primary crushing and are often used with a rock box or grizzly to manage smaller material. Gyratory crushers are used for secondary crushing and can handle a large capacity of material. Cone crushers are used for tertiary crushing and produce a finer product size. Impact crushers are used for soft to medium hard natural stone and for the reprocessing of residual construction materials. They are also used in recycling applications. Vertical shaft impact crushers (VSI) are used for the production of high-quality manufactured sand.

Crushers are also used in the production of cement, asphalt, and other construction materials. Hammer mills, cage mills, and other types of crushers are used to reduce material size. Hammer mills are used for crushing and pulverizing hard materials such as limestone, coal, and other minerals. Cage mills are similar to hammer mills, but use a different type of cage to reduce material size. Crushers can be powered by electricity, diesel, or hydraulic power. They are designed with safety features to prevent injury and damage to personnel and property. Safety features include guards, covers, and lockout systems to protect personnel and property from the moving parts of the crusher.