Designing and production of screw feeders and conveyors

Screw feeders are mainly used as charging und discharging units of different weighing batchers, air-actuated pumps and other equipment. Special screw structures, multi-speed work mode and a shut-off sealing flap at the outlet allow ensuring by means of the screw feeders the minimum dosing errors at high efficiency. In order to reduce the error in addition we developed special structures of the screw feeders with a changing winding pitch and the double-screw feeders with different screw diameters. Dosing of microadditives (dyes and decolorizers for glass mass) in the dosing units manufactured by “Stromizmeritel” Closed JSC is performed by means of a spiral screw feeder with material agitators. And dosing of water-absorbing ingredients of glass mixture, which are prone to adhering to screw blades, is done by means of the two-shaft screw feeders with mutual cleaning of screw surfaces. The cases of the screw feeders are mainly made of steel pipes of different diameter.  

The screw conveyors usually have a channeled case and differ from the feeders by a strengthened screw structure. They are equipped with a high-powered drive with increased load capacity, what allows operating such conveyors with full interturn rooms and big angles.

Manufacturing of the reversible and turning screw conveyors distributing the conveyed material among several feed bins or silos is possible.

Apart from manufacturing the conveyors of usual industrial configuration we produce screw conveyors of stainless steel as well as abrasion-resistant and heat-resistant conveyors. 

Main technical data of the screw feeders and conveyors are represented in the table. 

 * Angle of conveying 0…15⁰