Spiral Flight for Shield Machines

Product Overview

The Spiral Flight for Shield Machines is a critical component designed for efficient material handling in tunneling and underground construction. These spiral flights (also known as screw conveyor blades) are engineered to transport excavated soil, rock, and slurry from the cutting face to the discharge point, ensuring smooth and continuous operation of shield machines.

Jiahe Conveying Equipment Technology Co., Ltd specializes in manufacturing high-performance spiral flights with precision engineering, ensuring durability, wear resistance, and optimal performance in demanding tunneling environments.

Key Features

1. High-Strength Material & Wear Resistance

• Made from high-grade alloy steel or wear-resistant materials (such as Hardox or NM360/400) to withstand abrasive conditions.

• Heat-treated for enhanced hardness and longevity.

2. Precision Manufacturing

• CNC-formed for consistent pitch and diameter, ensuring smooth material flow.

• Customizable designs to match different shield machine models.

3. Corrosion & Impact Resistance

• Surface treatments (e.g., hardening, coating) to resist corrosion in wet or chemically aggressive environments.

• Reinforced edges to prevent deformation under heavy loads.

4. Optimized Design for Efficiency

• Variable pitch and thickness options to improve material conveyance efficiency.

• Minimized clogging and reduced power consumption.

5. Easy Installation & Maintenance

• Modular design allows for quick replacement of worn sections.

• Compatible with major shield machine brands (Herrenknecht, Robbins, etc.).

Technical Specifications

Applications

Spiral flights for shield machines are widely used in:

• Tunnel Boring Machines (TBMs) – Transporting excavated soil and rock.

• Slurry Shield Machines – Handling slurry mixtures in wet ground conditions.

• EPB (Earth Pressure Balance) Shields – Managing soft ground and cohesive soils.

• Microtunneling & Pipe Jacking – Small-diameter tunneling applications.

• Mining & Underground Construction – Material extraction and conveyance.

Why Choose Jiahe’s Spiral Flights?

✅ Custom Solutions – Tailored to fit specific shield machine models.
✅ Extended Service Life – High wear resistance reduces downtime.
✅ Global Supply – Fast delivery and technical support worldwide.
✅ ISO-Certified Manufacturing – Ensures quality and reliability.