this production line is composed of feeder machine, jaw crusher, counter-attack crusher, "stone strike stone" sand making machine, vibrating screen, sand washer, belt conveyor, centralized electric control and so on. in order to meet the different needs of customer, it can be equipped with a complete set of cone crusher, the dust removal equipment and so on. the production line can be used in many kinds of materials like limestone, granite, basalt, river stone, cobblestone, the gangue and manual sand making work. it is applied to the water and electricity, building, building materials, highway, urban construction. the material (limestone, granite, basalt, gneiss, river stone, cobblestone) will be fed into the jaw crusher to be crushed preliminarily. the material after be thickly crushed preliminarily will be transported to the counter-attack crusher to be crushed further by the belt conveyor. the stone material after be crushed twice will be transported to "stone strike stone" sand making machine to be crushed once more. the crushed stone material will be screened out the different specification by the vibrating screen through the belt conveyor. the qualified finished product will be transported to the finished product storehouse by the belt conveyor and the unqualified stone returns to the "stone strike stone" sand making machine through the belt conveyer to be crushed once more. it can form the close circulated crushing.