Rathi’s Screws are used for handling of granular or powder bulk can be fed with material at any point and discharge can take place at its open end or along its length the conveyor may have several discharges by using sliding gates to open and close as required to avoid blockage, the outlet openings should be at least of the same cross sectional area of the screw itself.

The modular Trough Screw Conveyor system is highly versatile offering numerous solutions for conveying powdery or granular materials. Rathi’s Screw Conveyors are manufactured from carbon steel with a suitable surface finishing. They are made up from a U-shape trough that is equipped with at least one outlet spout, an end plate at each trough end, helicoids screw fighting welded on a centre pipe with a coupling bush at each end, two end bearing assemblies complete with shaft sealing unit, a certain number of intermediate hanger bearings depending on the overall length of the screw conveyor, and bolted trough cover sections. Furthermore, Rathi’s Trough Screw Conveyors are equipped with a gear motor that suits the application.

Depending on the material to be handled our Trough Screw Conveyors come in a light, medium-heavy, or extra-heavy-duty design.

The light-duty version, is mainly used to convey powders or granular materials in the production of pet-food, in the plastics industry, and in soap, washing powder and detergent processing. The medium-heavy-duty version is mainly used in animal feed milling, in wood processing, in the chemical industry, and in environmental technology for both municipal and industrial applications. The extra-heavy-duty version is mainly used in the cement / lime /gypsum, as well as in the mining industry. According to the application various types of screws, inlet and outlet spout models are available.