A rock crusher, as the name implies, is a device that crushers large rocks into smaller, more manageable pieces. Utilized primarily in the construction and road-building industries, crushers can process natural rock and reclaimed materials like concrete to produce aggregate products such as gravel, rock dust, or rock fill used for erosion control or landscaping. The basic design of most crushers includes a hopper at the top where raw material is held before being fed into the crushing mechanism by either gravity or a belt drive. After the material is crushed, it is then discharged through an opening at the bottom where it can be further processed. The several types of crushers include jaw crushers, impact crushers, cone crushers, gyratory crushers, and roller crushers.
Although rock crushers generally are large and heavy, a new generation of rock crushers now offers portability and on-site crushing, greatly improving production by eliminating transportation time to fixed plants. Some of these newer models combine the actions of jaw and roller crushers and have a wide range of compression strengths. As technology advances, industry heads can expect even more efficiency, which will ultimately translate into greater cost savings.

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