Tubular Drag Conveyor System for Continuous Bulk Transfer

Product introduction of Tubular Drag Conveyor System

Tubular Drag Conveyor is an advanced enclosed bulk material conveying solution designed for the safe and efficient movement of powders, granules, flakes, pellets, and other dry materials. The system uses a continuous chain or cable equipped with evenly spaced discs that move inside a sealed tubular pipeline, pushing materials smoothly through the conveying route.

Unlike traditional open conveyors, the enclosed structure effectively prevents dust leakage, protects materials from external contamination, and creates a cleaner working environment. The low-speed conveying process reduces friction, particle breakage, segregation, and material degradation, making it suitable for fragile or high-value products.

The tubular drag conveyor system can be configured for horizontal, vertical, inclined, curved, and multi-directional conveying paths. Its compact design allows flexible installation in limited spaces while connecting multiple processing points within a production line.

With reliable mechanical operation, energy-efficient performance, and excellent material protection, tubular drag conveyors are widely used in industries requiring hygienic, controlled, and continuous material transportation.

Working Principle

The Tubular Drag Conveyor operates through a continuous chain or cable system with attached conveying discs moving inside a sealed tube.

• The drive unit rotates the chain or cable through the conveying pipeline.
• Circular discs attached at fixed intervals push materials forward inside the tube.
• The sealed pipe maintains a controlled conveying environment and prevents dust escape.
• Materials move continuously toward the discharge point without direct exposure.
• The return section allows the chain or cable to complete a continuous conveying cycle.

The slow movement of the discs creates gentle material handling, reducing product damage while maintaining stable transportation performance.

Conveyor Layout Types

The tubular drag conveyor can be designed in various configurations according to factory requirements:

Horizontal Conveying

Suitable for transferring materials between machines on the same production level with stable and continuous flow.

Vertical Conveying

Allows materials to be lifted between different production floors while saving installation space.

Inclined Conveying

Provides flexible height adjustment for connecting equipment at different elevations.

Closed Loop Conveying

Enables continuous circulation of materials through complex production layouts.

Multi-Point Conveying

Supports multiple feeding and discharge locations for automated production systems.

Custom Curved Conveying

Allows routing around obstacles and maximizing factory space utilization.

Product Parameter Table

Parameter	Specification
Conveyor Type	Tubular Drag Conveyor
Conveying Capacity	20 m³/h
Conveying Direction	Horizontal, Vertical and Inclined
Material Type	Powder, Granule and Bulk Material
Chain Pitch	100 mm
Disc Diameter	192 mm
Tube Wall Thickness	5 mm
Structure Material	Stainless Steel / Carbon Steel
Drive Type	Motor Driven
Application	Food, Chemical, Pharmaceutical and Industrial Material Handling

Main Features

1. Enclosed Dust-Free Conveying

The fully sealed tubular structure prevents material leakage and minimizes dust emissions, helping create a cleaner and safer production environment.

2. Gentle Low-Speed Operation

The slow movement of chain and discs reduces impact on products, preventing breakage, crushing, and particle separation.

3. Flexible Multi-Directional Layout

The conveyor supports horizontal, vertical, inclined, and curved conveying routes, allowing easy integration into complex production lines.

4. Wide Material Compatibility

It can handle various dry bulk materials, including powders, granules, flakes, pellets, and mildly abrasive products.

5. Energy-Efficient Operation

The optimized drive system reduces power consumption and lowers operating costs during continuous operation.

6. Compact Modular Design

The modular structure simplifies installation, expansion, maintenance, and integration with existing equipment.

7. Reliable Material Protection

The enclosed conveying process maintains product integrity and helps preserve particle size and quality.

8. Reduced Maintenance Requirement

The durable structure and stable mechanical operation reduce downtime and maintenance frequency.

9. Clean and Hygienic Transportation

The closed conveying path reduces contamination risks and meets industries requiring high cleanliness standards.

10. Continuous Automated Conveying

The system provides stable material flow for automated production processes without frequent manual handling.

Application Areas

1. Food Processing Industry

Tubular drag conveyors are widely used for transporting flour, sugar, cereals, grains, starch, coffee, spices, and food ingredients while maintaining hygiene and reducing material loss.

2. Pharmaceutical Industry

The enclosed conveying design provides clean and controlled transportation for pharmaceutical powders, granules, and sensitive raw materials.

3. Chemical Industry

Suitable for handling chemical powders, additives, pigments, and other bulk materials that require dust control and safe operation.

4. Grain and Cereal Processing

Used for conveying wheat, rice, corn, seeds, and cereal products in milling, storage, and processing facilities.

5. Plastic and Polymer Industry

Ideal for transporting plastic pellets, resin particles, and polymer granules while minimizing particle damage.

6. Battery and Advanced Material Industry

The enclosed system helps transfer fine powders and sensitive materials in controlled production environments.

7. Feed Manufacturing Industry

Used for conveying feed ingredients, grain-based materials, and pellets in automated animal feed production lines.

8. Industrial Bulk Material Handling

Provides reliable conveying solutions for various dry bulk materials in factories, warehouses, and processing plants.

Suitable Materials

The tubular drag conveyor can handle:

• powder material
• granule material
• bulk solid
• grain product
• food ingredient
• chemical additive
• plastic pellet
• pharmaceutical powder
• ceramic material
• agricultural product

Advantages Compared with Traditional Conveyors

Cleaner Operation

The sealed structure greatly reduces dust generation compared with open belt conveyors and bucket conveyors.

Better Product Quality

The gentle conveying process minimizes particle damage and maintains material consistency.

Flexible Installation

The conveyor can follow complex factory layouts with horizontal, vertical, and curved sections.

Lower Energy Consumption

The efficient drive system reduces operating costs during long-term operation.

Improved Workplace Safety

Dust reduction and enclosed transportation create a safer working environment.

Customizable Options

Conveyor Configuration

• Available designs include:
• horizontal conveying system
• vertical lifting system
• inclined conveying system
• closed-loop conveying system
• multi-outlet conveying system

Material Selection

Depending on application requirements:

• stainless steel structure
• food-grade design
• industrial-grade construction

Additional Functions

Optional configurations:

• customized conveying length
• multiple inlet and outlet points
• automatic tension adjustment
• special sealing design
• integrated control system

FAQ

1. What is a tubular drag conveyor?

A tubular drag conveyor is an enclosed conveying system that uses a chain or cable with discs inside a sealed tube to transport bulk materials continuously.

2. What materials can a tubular drag conveyor transport?

It can convey powders, granules, flakes, pellets, grains, and other dry bulk materials used in food, chemical, pharmaceutical, and industrial applications.

3. Does a tubular drag conveyor create dust?

No. The enclosed tube design significantly reduces dust leakage and provides cleaner material handling.

4. Can it transport fragile products?

Yes. The low-speed disc movement provides gentle conveying and minimizes product breakage.

5. Can the conveyor move materials vertically?

Yes. The flexible structure allows vertical lifting as well as horizontal and inclined conveying.

6. What is the difference between a tubular drag conveyor and a screw conveyor?

A tubular drag conveyor provides enclosed, gentle transportation with flexible routing, while screw conveyors usually have fixed conveying paths and may generate more material friction.

7. Can multiple discharge points be added?

Yes. The system can be customized with multiple feeding and discharge locations according to production requirements.

8. Is the conveyor suitable for food processing?

Yes. Stainless steel and hygienic designs can be provided for food processing applications.

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