---Working principle
   The electric motor runs slowly with the impellor after decelerated by the belt, decelerator and gears wheel. The sand and stone flow into washing launder from feeding launder, rolls with the impellor, and grinds each other. The impurity covering the sand is washing away. At the same time, add more water, the strong water flow will take away waste and some low-weight wastes from washing launder. Through the above process, the washing function is finished. The clean sand and stone is lift up by vane. Finally, the sand and stone goes to the out launder from the rotary impellor to finish the washing task. 

---Application
   Spiral Sand washing machine improves the quality of sand by removing the dust in it. It is therefore widely used in building-sites, gravel factories, concrete dam sites, glass factories, cement mixture stations, quarries, hydropower stations, and electric pole factories, etc.

---Product features
1.High degree cleaning-up.
2.Reasonable structure. 
3.Large capacity,low power consumption.

4.Small lost of the sands during the washing process.
---Technical parameter

---Product picture