What kind of crusher equipment is good for hard rock crushing

pew jaw crusher

The crushing process of hard rock is very simple. Most of the crushing equipment can complete the crushing work of hard rock. To choose a suitable crushing equipment, we need to decide according to the four characteristics of hard rock.

What are the hard rock crushing equipment?

There are many crushing equipment for hard rock, such as jaw crusher, cone crusher, impact crusher, cone crusher, gyratory crusher and so on. Although the crushing equipment for crushing hard rock is the same, they are different. The production needs of crushed materials are different, and the equipment used will be different.

Cone crushers generally crush hard rocks with high hardness. It is recommended to choose cone crushers with more wear-resistant parts. Although counter-attack crushers are also available, cone crushers can reduce wear on parts in later use.

Considering the long-term development of users, choosing a cone crusher to process hard rock can reduce equipment failures in the later stage, reduce maintenance costs, and maintain the continuous and stable operation of the production line.

HPT Cone Crusher

What kind of crusher equipment is good for hard rock crushing?

1. Consider the performance (crushing ratio) and applicability of the crusher

The jaw crusher has a large crushing ratio, extrusion crushing, and the discharge grain shape is needle-shaped, which is suitable for coarse crushing; the products of the cone crusher, impact crusher, hammer crusher, and impact crusher have good particle shape and are suitable for crushing. Medium and fine crushing; impact crushers and hammer crushers are suitable for crushing stones below medium hardness, and cone crushers and shaping crushers are suitable for crushing stones above medium hardness.

Coarse crushing: It is recommended to use a jaw crusher. The jaw crusher is a coarse crushing equipment. The hardness of the crushed material is 320 MPa. It is made of special materials, has strong wear resistance, and has a deep “V”-shaped crushing cavity. The feeding volume is large, and it can also effectively prevent the material from splashing out.

Secondary crushing: It is recommended to use a cone crusher. The cone crusher is mainly suitable for crushing high-hard materials. Laminated crushing can reduce the wear of the equipment to a minimum. The unique design of the thin oil lubrication system improves the service life of the equipment. The seal has no wear, which improves the reliability of blocking dust and fundamentally eliminates common faults such as oil-water mixing in cone crushers.

The cone crusher adopts the principle of laminated crushing, which can ensure that the output is uniform and cube-shaped, and the output is more beautiful. The crushing mechanisms of different types of crushers are different. Through reasonable selection of crushed stone production equipment, efficient configuration, process optimization and strict control of the production and processing process, the processing quality of sand and gravel aggregates can be effectively improved.

Fine crushing: It is recommended to use sand making and shaping machines. Sand making machines are used to process materials with relatively high hardness. Type, fineness modulus, particle size and other aspects are more in line with the sand standards for expressways.

2. Consider the production demand output of broken hard rock

The output is also an important index to determine the crushing equipment, which requires a better match between the equipment.

It is generally understood that the higher the output requirement, the larger the size of the crushing equipment required, and the corresponding input and output will increase. At present, the output of crushers on the market is as little as 10 tons per hour, and as many as hundreds or even thousands of tons. It is more reasonable and cost-effective for customers to choose what kind of equipment to use and how to arrange the production line according to their specific requirements.

Finally, consider whether there are special quality requirements for gravel

If there is a high requirement on the particle shape of the crushed stone, it needs to be shaped, and a shaping crusher should be equipped.

It is recommended to use a sand making and shaping machine. The sand making machine is used for processing materials with relatively high hardness. The degree modulus, particle size and other aspects are more in line with the sand standard for expressways. If the production environment is harsh, you can choose two smaller hard rock crushing production lines for easy management.

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