spiral sand washer is mainly used for sand factory, electric pole factory, work-site of building and concrete dam to wash, classifying and de-watering various sands. 
The Spiral sand washer adopt inclination of 15°,under the water tub, three weir plates form the sediment pool, the screw head is immersed in this pool, the screw is driven by electric motor through reducer rotating continuously, the fresh water is feeding from porous plate at bottom of sediment pool, this machine have three functions of washing, de-watering, classifying.

 

De-watering: The sand with bigger density is sunken down to tub bottom, the screw blade push this sand upwards, when passing through upper tub of proper length above water level, the water is draining into sediment pool from another drainage ditch, the de-watered sand is out from the discharging opening.

Classifying Material classifying is realized by overflowing the non-needed fines, the controlling method is adjusting height of overflowing weir and adjusting speed of screw.

Main specification of spiral sand washer :

Model	LSX-920	2LSX-920	LSX-1120	2LSX-1120
Screw No.	1	2	1	2
Screw Diameter(mm)	920	920	1120	1120
Tub Length(mm)	7585	7585	9750	9750
Suff Size (mm)	less than 10	less than 10	less than 10	less than 10
Capacity (t/h)	100	200	175	350
Screw Speed (r/m)	21	21	17	17
Motor Power (kw)	11	11×2	18.5	18.5×2
Water Used (t/h)	10-80	20-160	20-150	40-300
Weight (kg)	6.2	11.5	10.9	17.8