As the basic material of engineering construction, sand and gravel aggregates are commonly used as raw materials such as pebbles, granite, limestone, etc. Different raw materials require different crushing equipment.
 
In the process of processing, suitable processing equipment should be selected according to different raw materials.
 
The raw materials can be divided into two categories according to the hardness: hard stone and soft stone.
 

Hard stone: pebbles, granite, basalt, etc.
Hardness: above 150Mpa
Processing method: Jaw crushers and cone crushers are usually used for crushing equipment. Impact crushers can be used for shaping according to the requirements of the finished product, and then the auxiliary equipment vibrating screen is used for sorting, and the crushed materials are sorted into each Specification of finished aggregate.
 
Soft stone: limestone, sandstone, etc.
Hardness below 150Mpa
Treatment method: The crushing equipment can be considered to use jaw crushers, impact crushers, heavy hammer crushers, or impact crushers as required. Important note: The hardness of limestone varies *ly according to its silicon content. If limestone with high silicon content is crushed, a cone crusher is required.
 
There are many ways to select sand and gravel aggregate processing equipment and process design. How to choose and match the specific requirements needs to be *ly considered according to the hardness, looseness, mud content, and finished product requirements of different raw materials. When Jiaozuo Zhongxin configures solutions for customers, it will go to the site to configure appropriate equipment according to the material conditions, so that you have no worries in the production process.