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Hydroscrew Ltd, Bryntirion Road, Bagillt, CH6 6BZ, UK. Tel. +44(0)1352 710792 email: info@hydroscrew.co.uk

Hydrodynamic Screw
Shaftless Screw Conveyors

Hydroscrew Shaftless Screw Conveyors represent a new idea in bulk solids handling. The material is conveyed by a heavy-duty screw flighting without centre pipe which simply slides on a special wear-resistant trough lining.

Hydroscrew Shaftless Screw Conveyors have been especially designed to convey difficult and heterogeneous materials such as

- solid waste

- floating screenings

- de-watered, thickened, conditioned sludge

- tinned food

- creamy substances or pastes

- by-products (meat, fish, fruit, vegetables)

FLIGHT WITHOUT CENTRE PIPE offers the possibility of higher throughput rates, of conveying materials which tend to get entangled, which tend to jam, as well as products with heterogeneous particle size. Its construction material, its thickness and a special fabrication procedure give the shaftless screw great wear resistance and the guarantee

for great durability.

THE U-SECTION TROUGH is made from mild steel or 304 or 316 stainless steel.

ABSENCE OF INTERMEDIATE BEARINGS guarantees free material flow, thus preventing breakdowns due to jamming.

CONVEYING HYGIENE is given by a hermetically sealed, odour-free system providing at the same time ample access for cleaning of the interior of the conveyor.



A vast choice of different lining materials depending on the characteristics of the material to be conveyed is available.

Six flight diameters ranging from 150 to 500 mm with throughput rates up to 40 m3/h and lengths exceeding 25 metres are available.


- handling of difficult materials

- space-saving overall dimensions

- clean operation and absence of odours

- high efficiency

- easy access and cleaning

- total material discharge

- simple design (few components)

- hardly any maintenance required

- modular system, easily adaptable to different applications

- extremely versatile

The above-mentioned features make shaftless screw conveyors the ideal solution for all installations where DIFFICULT materials have to be handled without being damaged.

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