and diabase feature high hardness and high content of silicon, so it’s harder to crush than ordinary stone in the crushing project. In other word, they are both high cost material. Therefore, it is necessary to design reasonably the crushing flow for crushing basalt and diabase. Investor considers the cost of crushing project, meanwhile, considering the cost of the whole production line.

In the practical crushing, some of customers need to crushing different raw materials, such as limestone which features low hardness (4-5 grades) and low content of silicon. As a result, jaw plate for jaw crusher has low wear resistance and it is very common that service life of jaw plate as long as one year.

In the crushing project for crushing raw material like basalt and diabase, the crusher parts, for example jaw plate, blow bar and impact plate, abrade seriously. Therefore, its production cost is far more than production cost for crushing limestone.in order to reduce the attrition of crusher parts, Liming choose wisely crushing equipment under laminated crushing principle. Typical laminated crushing equipment consists of either two-stage jaw crusher or jaw crusher and cone crusher. If customer has higher demand for the granularity of final products, it also can be added impact crusher which is so-called three stage crushing process configuration. Inevitably, it needs higher investment for three stage crushing process configuration. However, certain long-term- operation stone plant can lessen largely its production cost by adopting three stage crushing process configuration. Please read the following basic basalt process configuration. Various process configurations feature differently and Liming could make different program according to customer’s requirements.

Due to different requirement for stone granularity, users are willing to assemble the whole production line which consists of jaw crusher and fine jaw crusher or jaw crusher and cone crusher. Jaw crusher and cone crusher belong to laminated crusher which has low wear rate, as a result, production cost is relative low. However, laminated crusher produces high content of needle-like final product which has inner cracks. It is not adapted by consumers for building first class buildings, so it costs lower than final product which is crushed by impact crusher.

The largest feature of impact crusher is able to produce superior granularity final products, and also enjoys crushing and shaping double performance. Fine granularity final products can optimize building mechanical performance and inevitably it costs higher. Of course, the cost of impact crusher easy worn parts is higher than that of fine jaw crusher and cone crusher. Needle-like stone and natural stone are hard to reach the mechanical performance requirement which can be formed by multi-edge stone. Therefore, impact crusher is widely used for providing good quality final product in construction, railway, expressway, airport and quay industry.

Considering good product granularity and low operation cost, it is better to choose coarse jaw crusher add fine jaw crusher or coarse jaw crusher add cone crusher as first stage crushing or second stage crushing, and impact crusher work as third stage, with the purpose of shaping. That, in turn, users can reduce cost and also get high quality final products.

Different production sites have different crushing technical process. expresses the warmest welcome to all of you.