The cylindrical screw conveyor is built using sections of tubes, inside of which there is a shaft with a helical screw blade welded to it, supported at the heads with flange supports with cast iron body and bearings. Depending on its length, it can be provided with central supports with wear-resistant PF-CC-22 bushings that serve as supports and for centering. At each support there is a hatch for inspection when the screw is stopped. With this type of screw, it can be used at any angle (it can also be used in a vertical position).