What Is Sectional Screw Flight

Sectional screw flight is produced by forming individual flight segments and then welding them together onto the shaft.

This method allows the production of large diameter, thick and special-sized screw flights, which are difficult or impossible to achieve using continuous cold rolling processes.

Key Features of Sectional Screw Flight

• Designed for large diameter and heavy-duty applications
• Uniform thickness from inner edge to outer edge
• Manufactured in single pitch segments for easy assembly
• Suitable for various materials including carbon steel, alloy steel and stainless steel
• Provides flexibility for customized designs and special requirements

Advantages Compared with Continuous Screw Flight

👉 Sectional flights are the preferred solution for large-scale and heavy-duty screw conveyor systems.

Custom Screw Flight Specifications

We can manufacture sectional screw flights based on your requirements.

Please provide the following information for quotation:

• Outer Diameter (OD)
• Inner Diameter (ID)
• Pitch
• Thickness
• Material
• Rotation direction (left or right)
• Quantity

👉 All dimensions can be customized according to your drawings.

Available Materials

• Carbon Steel
• High Carbon Steel
• Alloy Steel
• Stainless Steel

👉 Different materials can be selected based on wear resistance, corrosion resistance and working conditions.

Standard Size Range and Dimensional Reference

Applications of Sectional Screw Flight

Sectional screw flights are widely used in:

• Mining and mineral processing
• Cement and building materials
• Heavy-duty conveying systems
• Large capacity screw conveyors

They are especially suitable for abrasive and high-load materials.

Large Diameter Screw Auger Flight Manufacturing

Rotation Direction of Screw Conveyor Flight

The rotation direction (left-hand or right-hand) is a critical parameter for production and must be confirmed before order.

If you are unsure, please refer to the diagram below or send us your drawing for confirmation.

Incorrect rotation direction may lead to improper material conveying.

How to Identify Screw Flight Rotation

Correct identification of screw flight rotation is essential to ensure proper material conveying direction.

There are two types of rotation:

Right-Hand Flight

• The flight rotates clockwise when viewed from the end
• Material is conveyed forward (away from the observer)
• Most commonly used in standard screw conveyor systems

Left-Hand Flight

• The flight rotates counterclockwise when viewed from the end
• Material is conveyed in the opposite direction
• Used for reverse conveying or special applications

Important Note

Incorrect rotation direction may lead to improper material conveying or system malfunction.

If you are unsure about the rotation direction, please refer to the diagram above or send us your drawing for confirmation.

We can help confirm the correct rotation based on your conveyor layout or drawing.

How to Select the Right Screw Conveyor Flight

Selecting the correct screw conveyor flight is essential to ensure efficient material conveying and long service life. The selection mainly depends on the following factors:

1. Material Type

Different materials require different flight designs:

• Powder materials (flour, cement, lime) → standard continuous flight
• Granular materials (grain, plastic pellets) → standard pitch with smooth surface
• Abrasive materials (sand, ore) → thicker flight with wear-resistant material
• Sticky materials → larger pitch or special design to prevent build-up

2. Outer Diameter (OD) and Inner Diameter (ID)

• OD (Outer Diameter) determines the conveying capacity
• ID (Inner Diameter) must match the shaft size

👉 Larger diameter → higher conveying capacity

3. Pitch Selection

• Standard pitch (≈ OD) → general conveying applications
• Short pitch (< OD) → slow conveying, higher filling rate
• Long pitch (> OD) → faster conveying, lower filling rate

4. Thickness Selection

• Thin thickness → light-duty and cost-effective applications
• Thicker flight → heavy-duty and abrasive materials

👉 For harsh conditions, thicker flights are recommended for longer service life

5. Material Selection

• Carbon steel → general industrial applications
• Stainless steel → corrosive or food-grade environments
• Wear-resistant materials → abrasive materials

6. Rotation Direction

• Right-hand flight → standard conveying direction
• Left-hand flight → reverse conveying direction

👉 Must be confirmed before production

Final Recommendation

If you are not sure about the correct specifications, please send us your material type, required capacity and working conditions.

We can recommend the most suitable screw conveyor flight solution for your application.

Welded Sectional Screw Flight – Reference Images

Related Screw Flight Types

We also provide other types of screw conveyor flights:

• Continuous Screw Flight
• Tapered Screw Flight (Variable Diameter)

👉 Learn more about different screw flight types for your application.

Get the Right Sectional Screw Flight for Your Project

Looking for large diameter or heavy-duty screw conveyor flight?

Send us your drawings or specifications. We will provide a suitable solution and fast quotation.

Contact us today for professional support.