The shaftless screw conveyor is primarily used for wastewater treatment, papermaking, chemical industry waste, and other conveying stations for materials with strong adhesion, paste-like thick substances (such as chemical raw materials, waste paper pulp, malt, sludge, etc.), and materials prone to entanglement (such as domestic waste). Therefore, the shaftless screw conveyor is also known as the anti-entanglement conveyor and waste treatment conveyor. The WLS (WLSY) shaftless screw conveyor is fundamentally similar in conveying principle to the general screw conveyor, differing only in the structure, with the spiral having a distinction between those with and without a shaft. The materials for shaftless screw conveyors include ordinary 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), base, etc.

The shaftless helical conveyor operates on the same principle as a standard helical conveyor: much like a rotating spiral shaft moves a nut along its axis, the spiral body of the shaftless helical conveyor acts as the shaft, and the material as the nut of the conveyor. As the spiral body rotates continuously, the material is also conveyed continuously. The spiral body of the shaftless helical conveyor consists of thicker blade-like segments, driven by the conveyor's drive end, with no shaft in the middle. It comes into contact with the bottom liner inside the housing wall (sliding).