What kind of crushing equipment should be selected for crushing granite

Granite is a type of igneous rock with quartz as its main component. Its quartz content is generally 20-50%, and in some cases, it can reach 50-60%. It has extremely high hardness and is difficult to handle. When crushing granite, the hardness and compressive strength of the granite need to be taken into consideration. Granite is a hard rock, so equipment with a high crushing capacity needs to be selected. The following are several types of crushing equipment suitable for crushing granite:

1. Jaw crusher

Jaw crushers are often used for primary crushing and can handle larger pieces of granite. Its crushing method is simple and straightforward, with a certain degree of toughness, which can cope with the hardness of granite.

2. Cone crusher

Cone crushers are typically used for secondary or tertiary crushing, featuring a high crushing ratio and production efficiency. For the hardness of granite, a compound cone crusher can be selected, which has stronger wear resistance and crushing capacity.


3. Impact crusher

The impact crusher is mainly used for secondary crushing and is suitable for materials with medium hardness or lower. Although granite has a relatively high hardness, after the primary crushing by a jaw crusher or a cone crusher, it can be further crushed by an impact crusher to obtain a better finished particle shape.

4. Hammer crusher

Hammer crushers are suitable for crushing brittle materials, such as granite. The hammer crusher has a high crushing efficiency and the gap between the hammer head and the liner can be adjusted as needed to control the particle size of the finished product.

5. Impact crusher

Impact crushers are mainly used for fine crushing and shaping, suitable for the ultimate crushing of granite, and can obtain high-quality sand and gravel aggregates.

When choosing equipment for crushing granite, factors such as the characteristics of granite, output requirements, finished product particle size and investment cost should be comprehensively considered. In actual production, a process flow where multiple devices are used in combination can be adopted to achieve the best crushing effect.