Screw Conveyor For Powder & Granule

A screw conveyor is a versatile mechanical system that uses a rotating helical screw (auger) inside a fixed tube or trough to efficiently transport powders, granules, and other bulk materials from one point to another . It is widely used across industries like food processing, chemicals, pharmaceuticals, and construction for its simplicity and effectiveness .

The conveyor operates on a simple principle: the rotating screw moves material through the enclosed housing . This design offers several key benefits. It provides a dust-tight environment, which improves workplace safety and prevents contamination . It is also highly adaptable to different plant layouts, with configurations available for horizontal conveying (up to 80 feet) and vertical discharge (up to 40 feet) . Models range from flexible screw conveyors for tight spaces to robust trough conveyors for heavy-duty applications .

Selecting the right auger is critical for optimal performance and depends on the material properties :

• Flat Wire Auger: Best for light powders and fine granules, providing consistent forward thrust with minimal friction .

• Beveled/Square Bar Auger: Ideal for food and pharmaceutical products, minimizing degradation during transport .

• Round Wire Auger: Designed for heavy, abrasive materials like salt, sand, or metal powders, offering superior strength and wear resistance .

• Centercore Auger: Helps convey highly aerated or cohesive materials that tend to clog or bridge .

Additional features like stainless steel construction for hygienic applications, easy-clean designs for quick maintenance, and automated controls for precise batching make the screw conveyor a fundamental tool for any facility handling bulk powdered or granular materials .