It finds application in primary sewage treatment plant in sand collection.
Operating principle
the mixture of water / sand enters the upper tank.
The floating particles are separated on the surface with the help of a sinking plate, transferred through the screw and disposed of with the precipitating solids and sand almost dry in the collection bin. The clean water overflows leaving through the side of the tank.

Standard types of production:
Type |
Capacity (m3/h) |
L (mm) |
B (mm) |
h1 (mm) |
h2 (mm) |
h3 (mm) |
Power (kW) |
Inlet (E) |
Outlet (A) |
SK-260 |
30 |
4100 |
1320 |
1500 |
1600 |
2370 |
0.25 |
DN100 (4”) |
DN150 (6”) |
SK-320 |
60 |
5100 |
1650 |
1710 |
1870 |
2680 |
0.37 |
DN150 (6”) |
DN200 (8”) |
The Sand dewatering unit complete with flange and overflow entry (exit for returning drainage water) stainless steel tube with a valve for evacuation if required and apron for the disposal of sand in container or bucket of sand collecting.
The upper surface of the shield bearing sliding lid to allow control of the hopper, while the part of the screw has a removable cover.
The screw is no central axis (shaft less) and the material is of special steel of high strength and elasticity with corrosion protection.
The lining of the canal rotation of the screw is made of suitable material not damaged high strength and high flow rate.
