Tube Screw Conveyor
A Tube Screw Conveyor, also known as an enclosed screw conveyor, is a highly efficient material handling system designed to transport bulk materials within a fully enclosed tubular casing. Unlike the traditional U-trough screw conveyors, the tube design ensures complete enclosure, preventing spillage, contamination, and dust emission during operation.
This conveyor system consists of a helical screw blade, also called a flight, which rotates inside the tubular housing. As the screw turns, it pushes materials along the length of the tube in a controlled and uniform manner. It is particularly effective for transporting fine, granular, or semi-solid materials such as flour, cement, grain, biomass, chemicals, or powdered minerals.

The enclosed design makes it an ideal choice for industries where hygiene, dust control, and environmental safety are critical. Food processing, pharmaceuticals, agriculture, chemical plants, and cement manufacturing frequently use tube screw conveyors to move sensitive or hazardous materials without product loss or worker exposure.
Another advantage of the tube screw conveyor is its compact design, which allows for installation in tight spaces. It can be mounted horizontally, inclined, or even vertically, depending on the application requirements. This versatility enables industries to optimize material handling in production plants where layout and space efficiency matter.
The conveyors can be manufactured in mild steel, stainless steel, or special alloys, depending on the type of material being conveyed and the industry standards. For example, stainless steel versions are widely used in food and pharmaceutical sectors due to their corrosion resistance and ease of cleaning.
Maintenance is relatively straightforward because the system has fewer moving parts and the tubular design protects components from external damage. Additionally, the enclosed housing increases durability by reducing wear and exposure to environmental conditions.
From a safety perspective, the tube screw conveyor is beneficial since it minimizes dust generation, which not only reduces health hazards but also lowers the risk of explosions in industries handling combustible powders.
Furthermore, the system supports customization in length, diameter, pitch of the screw, and drive mechanism, making it adaptable for a wide range of industrial processes. Many modern designs also integrate energy-efficient motors, reducing operational costs while ensuring continuous, reliable performance.
In summary, a Tube Screw Conveyor is a robust, versatile, and hygienic material handling solution. Its enclosed structure, efficiency in handling bulk materials, and adaptability across multiple industries make it a preferred choice for businesses looking to improve productivity, safety, and environmental compliance.