What is Primary, Secondary and Tertiary Crushing?

There are many ways to break up hard materials such as rock and make them suitable for use, and depending on your field of activity, project characteristics and the machinery you use, a path and planning must be made accordingly, especially when it comes to product size.

Obtaining the product of the targeted diameter by passing the first, second and third crushing stages of the materials to be crushed may depend on the type of material, such as aggregate, concrete and asphalt, and may also depend on the variety of product dimensions targeted to be produced.

Primary crushing is the first step in crushing the material and can sometimes be sufficient to achieve the desired product size. The primary crusher takes oversized material to be blasted, excavated or recovered to be sent to the crusher and processes it via a crusher, jaw or rotary crusher to create various product sizes.

For many aggregate producers, it may be necessary to use a closed-loop mobile primary crushing and screening plant with screening capabilities to produce the desired product. However, if a wider product range is desired and certain materials such as concrete and asphalt are being processed, it may be necessary to include second and third crushers.

Secondary crushing is the second stage of material processing after the first crushing. After that, the product to be crushed will pass through a second crusher or a cone crusher, which is effective in crushing such materials.

There are also third and fourth crushing stages to obtain smaller sizes of material. In addition to the second crushing, an open circuit portable crushing plant can often be used, where the processed material is screened and transferred from one crusher to another.

Utilizing more crushers after the primary crusher can make a crushing - screening process much more efficient. This not only results in various sizes of product, but also in an open circuit crushing plant, the flow and processing of the material is easier and increases efficiency compared to a closed circuit crushing plant.

Crushing and screening plants manufactured by Polygonmach offer a wide range of mobile crushing and screening plants, both closed circuit and open circuit, producing powerful crushers such as primary, secondary and tertiary crushers, horizontal shaft crushers, jaw crushers and cone crushers. Contact a Polygonmach project representative and we can help you decide which crushing equipment should be used for your planned project.

Polygonmach is constantly leading the industry with new projects and innovations.

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