In sand and gravel production process, we usually take artificial aggregates as the principal raw materials, and natural sand and gravel aggregate as supplement; therefore the construction cost is greatly impacted by the choice of artificial aggregates equipment, especially the crusher equipment. However the processing capacity of equipment with low price in the market is relatively small, which is only applicable to the sand and aggregate production of small power stations and channels, and cannot fully meet the high-strength gravel systems production, neither the production with higher gradation adjustment. So, how to simplify the production process, optimize the allocation of sand and gravel equipment and reduce the cost of the project has been the direction to explore for SBM machine. Traditional sand and gravel processing systems are multi-stage crushing form with big footprint and high mechanical configuration, also need a large workforce; SBM ultrafine mill comes up with an aggregate system with reasonable size according to the stock ground and equipment performance, which is mainly composed of coarse crushing workshop (including rod tone screening), screening workshop, medium crushing workshop, sand making workshop, checking screening workshop and semi-finished products stock heap, adjustment stock heap, finished aggregate yard, control system and their auxiliary facilities. They can be configured with jaw crusher, impact crusher, cone crusher, sand maker, vibrating screen device adopting segmented segmentation closed-circuit circulation, that is medium crushing and screening closed circuit, sand making and checking screening closed loop. We can make reversible belt conveyors intermediate and adjust discharge opening according to different production plans to meet the demands on coarse aggregate and sand-making materials. SBM series high efficiency sand maker could complete crushing and sand making together the entire aggregate processing system process is complete and innovative on technology and design, not only reducing the investment costs of the temporary construction, but also reducing the cost of production. Basing on the physical characteristics of mining stone and the requirements of system design process, combining with particle size characteristics of the broken product, we can optimize the equipment allocation in workshops, rationally allocate machinery and equipment of SBM sand and gravel production system at any time to make it plays the best mechanical efficiency and improves the system operation capabilities. The aggregate processing system is reasonable and reliable in production equipment configuration, bold and innovative on production process design; it uses advanced computer control technology in the complex natural conditions, achieving large-scale construction system automation and centralized monitoring, fully ensuring the supplying of high-grade finished bone materials.