Screw conveyor
ATEX WAMGROUP S.p.A

Over the years Screw Conveyors for specific purposes have been developed. Cement Screw Conveyors and Feeders for concrete batching plants were the first to be industrialised in the early 1970s. Later came light-duty Flour Milling Screw Conveyors with synthetic maintenance-free intermediate bearings.
Heavy-duty Cement Screw Conveyors, as used in the concrete industry, are particularly robust and equipped with self-adjusting stuffing boxes.
Extra-heavy-duty Screw Conveyors, designed for continuous operation in cement, lime and gypsum processing, come with flanged shaft couplings for easy screw replacement.

Difficult materials with a high moisture content that have a tendency to stick to the centre pipe or flight in traditional screw conveyors, such as sludge or screenings, are successfully handled by Shaftless Screw or Spiral Conveyors with ultra-heavy-duty helicoid flighting.

As a result of their long-term expertise in screw feeding, WAM® have developed a comprehensive range of high-accuracy Screw Feeders for both micro-feed rates and large volumes. The range includes feeders with agitator tools, feeders with flexible troughs for gently massaging and blending the material, feeders for steep angle applications and many others