Tube Screw Conveyor

1. Overview

The Tube Screw Conveyor (also named Tubular Screw Conveyor) is a fully enclosed continuous conveying equipment. Different from open U-type screw conveyors, it adopts a closed round tubular shell, which completely wraps the internal helical screw. This fully sealed structure eliminates dust overflow and material contamination during operation. It is the optimal choice for dust-prone, sanitary-sensitive and environment-friendly production lines, supporting horizontal and medium-inclined material conveying.

2. Working Principle

The drive assembly drives the central screw shaft with integral helical flights to rotate continuously. Under the centrifugal force and blade thrust, materials inside the sealed tube are pushed axially from the feeding inlet to the discharge outlet. The closed tube wall limits material floating, ensuring zero dust leakage. It can achieve stable continuous conveying with an inclination angle up to 30°, more flexible than U-type conveyors for vertical elevation layout.

3. Core Features & Advantages

- Fully Enclosed & Dust-Tight: Integrated tubular shell realizes zero dust leakage, protecting workshop environment and meeting environmental protection standards.

- Anti-Contamination & Sanitary: Closed internal space avoids external impurity mixing, suitable for food, pharmaceutical and high-purity chemical materials.

- Flexible Layout: Supports horizontal, inclined (≤30°) and short-distance vertical conveying, adaptable to complex factory pipeline layout.

- Stable & Low Noise: Compact internal structure, smooth screw operation, low running noise and small floor space.

- Customizable Structure: Optional carbon steel/304/316L stainless steel, shafted/shaftless design, variable speed drive and multiple discharge points.

- Low Maintenance: Sealed structure reduces internal dust accumulation, lowering daily cleaning and maintenance frequency.

4. Main Technical Specifications