Shaftless and Shafted Screw Conveyors

As the name suggests a Shaftless Screw Conveyor is without a core and driven directly to the helix rather than via a central shaft. The helix is far heavier and manufactured of a higher tensile strength material compared to shafted screws. Shaftless Screw Conveyors run directly on the lined casing and without hangar or tail end bearings. The drive unit is typically a direct coupled hollow shaft flange mount type eliminating the need for drive chains, belts or guards.

A unique feature of the ScrewTech Shaftless Screw Conveyor system is its ability to transfer product directly into the side or bottom of downstream conveyors due to the use of “push” drives and the elimination of tail end bearings.

ScrewTech Shaftless Screw Conveyor systems are totally enclosed for safety, completely spill-free operation for hygiene and to contain the odour of the conveyed product.

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Typical Conveyed Product:

Plug and arch forming products such as dewatered sludge, screenings and offal
Irregular products such as slaughterhouse carcasses, heads, bones and waste
Grains, Ash, Sand, marc, soil and sawdust
Stringy, sticky or fibrous products such as organic waste, manure or compost
Difficult inconsistent materials and variable flow rates
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