FREQUENTLY ASKED QUESTIONS
A shaftless screw conveyor moves material with a continuous helix that has no center pipe or shaft. The flighting rides on a replaceable liner along the bottom of the housing, eliminating hanger bearings and a tail shaft. This design handles difficult materials that would jam a conventional shafted screw.
They excel with wet, sticky, stringy, and odd-lump-size materials that wrap around or build up on a standard center-pipe screw. Typical uses include industrial sludges and bio-solids, wastewater treatment, animal processing, pulp and paper, recycling, plastics, and bulk powders and granules.
On a conventional screw, the center pipe is where wet, sticky products build up and stringy products wrap. Designing it out removes those failure points, allows full product clean-out, and lets the conveyor handle varying lump sizes with less maintenance.
Yes. Using a perforated trough liner with a drip pan, the conveyor can dewater or drain liquids as it moves material. With every revolution the flighting clears debris from the perforations, keeping the holes open and the system draining reliably.
No. The continuous helix rides directly on a replaceable liner at the bottom of the housing, so no hanger bearing supports are required. Removing them eliminates common wear points and obstructions in the material path, which is a key reason the design handles difficult products so well.
Heavy-duty construction, no hanger bearing supports, no center pipe for product to build up on, full product clean-out, a replaceable trough liner, and high wear properties. Because there is no tail shaft, seal, or bearing, the conveyor is also totally enclosed.