Granite is plutonic igneous rocks formed by magma below the surface condensate, which is most widely distributed in the Earth's crust. Due to the formation and development of good discernible to the naked eye, it is named mineral particles. Main components of granite are feldspar, quartz and Mica, which is not easily weathered, color appearance, and the skin color can maintain more than a century. Due to its high hardness, wear resistance, in addition to be used for advanced building materials decoration and ground outside hall, it is also the preferred machine open carving material.

Judging from the next five years, crushing equipment ( jaw crusher and stone breaker, etc.) demand will increase in China, while the crushing equipment and construction waste like jaw crusher, impact crusher, cone crusher and sand making equipment for reuse of abandoned mines resources will be the main demand equipment, and become mainstream trends in market demand for a long period of time. Re-crushing stone scrap, concrete blocks and reuse has been program adopted by a growing number of projects, which not only solves problems of municipal solid waste, but also addresses to present situation of pollution and environmental destruction through extracting stone

Finally, we should know that the hammer head and rotor is the most common and most important accessories in most crusher, we often said that the crusher is really good only when its hammer head and rotor is good, therefore, abrasion-resistance of hammer head and rotor become the first consider factors for customers to choose crusher.

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