As we all know, most of our house is a natural river sand collection. But a large number of natural sand collection to the surrounding residents brings security risks, countries began to real-time control policy of natural sand, natural sand prices created by nature. When people have to worry about no sand bar, then emerge as the times require grinding machine. As the artificial sand substitute natural sand into people's lives, to solve the natural sand resources appear half area of our country gradually reduced, or even no resource dilemma. The beginning of reform and opening up we are all busy to bring home the bacon, few people go into business, not a lot of population migration. In recent years, with the rapid development of China's comprehensive national strength, Chinese people's living standards continue to improve, a lot of people move from the countryside to the city settled. Because of the increase of population, urban infrastructure is not perfect and the housing shortage is revealed. It is due to the migration of population, increasing demand for housing and urban construction efforts to sand making machine industry has brought dividends. Rod milling sand machine is broken the principle of combining traditional impact crusher and hammer crusher sand making equipment and manufacturing, mainly used for limestone, argillaceous siltstone, shale and coal, gypsum, stone crushing equipment, by adjusting the gap between the impact plate and the hammer, the discharging granularity can be controlled less than 5mm, and improve the service life of the hammer. For the sand tailings for large-scale stone material factory, has the advantages of high yield, the use of a single and simple installation, less investment, quick effect, use this as the sand tailings for large-scale mining is more economical and reliable solution.