The raw materials in the production line are evenly and continuously fed into the jaw crusher for primary crushing through the vibrating feeder, and then enter the multi-cylinder hydraulic cone crusher for secondary crushing. After discharging, it is screened by a circular vibrating screen. Materials that do not meet the particle size requirements are returned to the cone for re-crushing. Materials that meet the requirements enter the sand making machine for crushing and shaping, and are finally screened by the circular vibrating screen. Qualified materials are washed by a sand washing machine. Finally, the finished aggregate is obtained.