Screw and Coil Conveyor

Screw and Coil Conveyors are used in machines where chips need to be cleared from a narrow space in the machine bed. Screw conveyor is the simplest and oldest form of chip conveying. Screw flights welded on a central shaft push the chips along screw axis when made to rotate at a constant speed. Coil conveyor is similar to screw conveyor in working concept though the construction varies. Steel square section is formed into coil which, when rotates, pushes the chips along the coil axis.