A typical laminated device configuration is one set jaw crusher for primary crushing and another set jaw crusher for secondary crushing or primary jaw crusher plus secondary cone crusher process configuration. If the customer has higher requirements on the final stone product type, you can then configure an impact crusher for integer broken, thus forming a three stage crushing process configuration. Three stages crushing will inevitably lead to a higher cost of investment projects, but for long-term operation of the stones factory, three stages crushing for the production costs are very substantial.