Screening and washing facilities are used to prevent dusting, to prevent the effects of flammable or harmful substances and to carry out the disinfection process.


Washing screws can be produced with single or double helical shafts. It is driven by a geared motor and chain gear system. It is used for dewatering the washed and water-mixed materials. When the washed material is fed to the helix, it sinks to the bottom of the chamber thanks to its density and accumulates in this part. The spiral helix drags this material from the bottom to the outlet. In the double-shaft type, it carries the material to the center of the trough, ensuring the contact of the particles with each other, thus removing the unwanted parts on the particles.

Thanks to its inclined geometry, water is not included in this drag and is discharged by flowing through the channels connected to the lower collection chamber. The helix sheets in constant contact with the material are replaceable and protected against abrasion by plastic linings.


Blademill is generally used in the washing process when it needs to be processed before washing screens to improve screening efficiency or before other washing equipment such as vibrating washing screen, washing screw, dewatering screen to increase sand equivalent. It serves to purify the aggregate from soil, clay and other unwanted particles.

They are produced as double shafts. There are detachably fixed helix leaves and washing paddles arranged in the most suitable combination on the shaft. It is quite easy to replace the paddles and helix leaves as it has a detachable link. These shafts are driven by motor, reducer and belt pulley system.

With the design of the paddles and helixes aligned optimally along the shaft, the material is pushed towards the center and the unwanted particles on the material rubbing against each other are eroded and fragmented by this friction effect.

In appearance it is similar to washer screws. However, there is no water reservoir in the feeding part like the screw helix. Therefore, the fed material and the water exit the outlet chute together. In addition, both fine and coarse material can be fed, but they cannot separate hard and plastic clays. Moreover, as mentioned before, after the paddle washer, another washing equipment must be used.

Dewatering Screen

Dewatering screens are designed to remove water from sand recovered in a washing system. After any washing process, the sand contains a minimum amount of water. It may be possible at the end of weeks to drain this amount of water by stockpiling it in bulk. However, this also increases the inventory cost excessively. For this reason, dewatering screens are very valuable equipment for washing systems.

• Quickly removes the water contained in the sand.

• A product containing very low humidity is obtained.

The washed sand is fed to the inclined screen surface in the dewatering screen feed section. The screen frame is designed as upward inclined. As the material climbs this upward slope thanks to the linear motion created by the vibromotors, the water cannot climb and creates a pool at the intersection of the feeding and climbing motion. Therefore, liquid and very small organic fibers are separated from the sand through the mesh openings of the polyurethane screen wires, which have very small mesh openings, which act as a filter, and are forced to be evacuated from the screen. The received water is recycled for reuse in the system. The sand is obtained as dehydrated.