The transmission parts of sand washer are isolated from water and sand, which makes the fault rate much lower than that of the sand washer in common use at present Sand washer is widely used for cleaning materials in the following industries: quarry, cement mill, minerals, building materials, transportation, chemical industry, water conservation and hydropower, cement mixture station and so on. The sand washer is a kind of highly efficient sand washing plant, primary hammer mill, taking the advanced techniques and the domestic physical conditions together into consideration. It has the advantages of reasonable structure and high productivity. During the washing process, few sands run off. It has the features of high degree cleaning-up, reasonable structure, large capacity, low power consumption, small loss of the sands during the washing process, especially for the drive parts of the sand washing machine which is used to separate the aggregate from the mixing of water and sand. So that it has lower failure rate than the usual sand washing machine and sand washer is the best choice in domestic sand washing industry. At the same time Water well drilling rigs, vsi sand maker, raw materials are rubbing and grinding each other in a violent way, impact breaker, reducing the diameters of product particles as a result. Then the product is discharged from the lower body of sand maker and is collected in a tank. Advanced sand makers feature large processing capacity, smooth function and high efficiency and consume less energy than old models. It can deal with both natural sand and manufactured sand. Moreover, sand washer, along with rock crusher or stone crusher, is frequently equipped in such fields as mining companies, chemical corporations and construction sites to get rid of a variety of impurities and to dehydrate the raw materials in a cost-effective and efficient way.screw washing machine: http://www.sell-crusher.com/pro/p13.html