NFLG has developed an intelligent sand washer independently by introducing the most advanced washing technology. The hydrocyclone separation technology is adopted to eliminate sludge, clay and other impurities of the size less than 75μm and reclaim fine sand of the size larger than 75μm maximally. Meanwhile, the technology can dyhydrate efficiently the materials washed and control the moisture content of finished sand. The technology enjoys good cleanliness, less losses of fine sand and strong processing capability. The applications of the equipment: various types of concrete, mortar, asphaltic sand, river sand, lake sand, silica sand for use in the glass industry, golf course sand, bed sand, iron sand, tailings and other recovered materials.