The shaftless screw conveyor is mainly used for wastewater treatment, papermaking, chemical industry waste handling, and other applications requiring strong adhesion in conveying materials, such as paste-like viscous substances (like chemical raw materials, waste paper pulp, malt, sludge, etc.) and materials prone to entanglement (like domestic waste). Therefore, it is also known as anti-entanglement conveyor and waste handling conveyor. The WLS (WLSY) shaftless screw conveyor operates on the same principle as conventional screw conveyors, differing only in the structure with the presence or absence of a shaft. The materials for shaftless screw conveyors include carbon steel and stainless steel.

Structure:

Primarily composed of the power unit, head assembly, housing, shaftless spiral, wear-resistant liners, feed inlet, discharge outlet, cover (if required), and base.

The shaftless screw conveyor operates on the same principle as a standard screw conveyor: just like a rotating spiral shaft drives a nut along its axial direction, the spiral body of the shaftless screw conveyor acts as the spiral shaft, and the material as the nut. When the spiral body rotates continuously, so does the material. The spiral body of the shaftless screw conveyor is a thicker strip-like blade, driven by the drive end of the conveyor, with no shaft in the middle. The spiral body contacts the bottom lining plate inside the housing (sliding).