Automatic Preformed Strand Duckbill Forming Machine for Precision Cutting Without Grinding

In the manufacturing of preformed power line fittings, such as armor rods, suspension clamps, and tension clamp components, the duckbill end is a critical structural feature.

This specially formed end ensures reliable installation on transmission lines and contributes to the mechanical stability of the entire fitting.

However, when many customers watch videos or photos of our Automatic Preformed Strand Duckbill Forming Machine, they often ask an important question:

“Is the duckbill shape created by grinding after forming?”

The answer is no.

On our equipment, the duckbill end is formed directly during the forming process using Xingang’s independently developed precision cutting tool system, rather than through a secondary grinding operation.

This advanced forming technology provides several advantages:

• Cleaner and more uniform cutting edges
• More precise dimensional control
• Higher product consistency across production batches

As a result, the machine is widely used for manufacturing preformed armor rods, suspension clamp rods, and tension clamp accessories used in transmission line hardware systems.

This article explains the real forming principle behind the machine, the key parameters required for tooling design, and why choosing Xingang Machinery ensures stable and reliable production results.

How the Duckbill Forming Process Works

In traditional manual or semi-automatic production methods, the duckbill end often requires additional grinding after the forming process to achieve the desired shape.

Our Automatic Duckbill Forming Machine uses an integrated precision cutting system that completes the duckbill shaping directly within one automated production cycle.

The process includes:

1. Manual wire feeding

2. Wire positioning and alignment

3. Precision cutting

4. Duckbill shape forming

All steps are completed in a single continuous production cycle.

Video Demonstration

This means the duckbill end is formed directly during the shaping process, eliminating the need for secondary grinding operations.

Advantages of Direct Cutting Duckbill Forming Technology

Compared with traditional grinding-based processes, the direct cutting method provides several significant benefits.

Simplified Production Process

Since the duckbill shape is formed directly, there is no need for additional grinding stations, reducing production complexity.

Reduced Material Waste

Precision cutting improves material utilization and reduces unnecessary scrap.

Consistent Geometry

The cutting tool system ensures that each duckbill end maintains consistent geometry and dimensional accuracy.

Higher Production Efficiency

Removing the grinding stage increases overall manufacturing speed.

Improved Production Safety

Fewer manual operations and grinding processes result in a safer working environment.

Products manufactured with this technology typically feature:

• clean and uniform cutting edges
• stable dimensions
• consistent duckbill shapes

Most finished parts do not require secondary finishing before assembly into transmission line fittings.

Key Parameters Required for Tooling Design and Machine Setup

Different customers often produce preformed strand products with different specifications.

Before designing the cutting tooling system, our engineers must confirm several key parameters.

These parameters are clearly marked in Drawing 2 (red circles).

Required information includes:

• Wire Diameter
• Pitch
• Forming Height
• Lay Direction (Left-hand or Right-hand)

These parameters directly affect:

• the structure of the cutting tool
• forming precision
• machine adjustment settings

Providing accurate product data allows our engineers to design customized tooling systems that ensure the finished product meets the technical drawing specifications.

Reference Drawings

Drawing 1: Complete technical drawing of the preformed strand product

Drawing 2: Key parameters required for duckbill forming machine setup (marked in red circles)

Supported Materials and Wire Specifications

The equipment is mainly used for aluminum alloy wire processing, which is widely applied in preformed power line fittings manufacturing.

Common supported wire diameters include:

• 6.35 mm
• 7.87 mm
• 9.27 mm
• 11 mm

Other wire sizes can also be customized according to customer requirements.

Tooling and machine parameters are adjusted based on the specific wire diameter to ensure:

• stable feeding
• precise cutting
• consistent duckbill forming

Typical Applications of Duckbill Forming Machines

The automatic duckbill forming machine is mainly used for producing preformed strand components applied in transmission line hardware.

It is important to note that duckbill-ended preformed rods are widely used in ultra-high voltage (UHV) transmission lines, where mechanical reliability and installation stability are critical.

Typical applications include:

• ADSS cable protection rods
• OPGW cable armor rods
• suspension clamp preformed rods
• tension clamp helical components
• transmission line helical fittings

These products are commonly used in:

• power transmission infrastructure projects
• optical fiber communication lines
• national power grid construction

Because UHV transmission systems operate under extreme mechanical and environmental conditions, high-precision duckbill forming technology is essential for ensuring long-term conductor protection and installation reliability.

Finished Duckbill Product Characteristics

Products manufactured by the Xingang Duckbill Forming Machine typically feature:

• clean and smooth cutting edges
• uniform duckbill shape
• stable dimensional accuracy

In most cases, these parts can be used directly for transmission line fitting assembly without grinding.

Different Names for This Machine in Global Markets

In different countries or industries, this type of equipment may be referred to by several names.

Common names include:

Duckbill Forming Machine
Duckbill Cutting Machine
Preformed Strand Duckbill Machine
Armor Rod Duckbill Forming Equipment
Preformed Wire Duckbill Processing Machine

Although the terminology varies, the core function remains the same — forming the duckbill end of preformed strands used in transmission line hardware.

Why Choose Xingang Machinery

Nantong Xingang Machinery has more than 20 years of experience in manufacturing equipment for power line fittings production.

Our engineering team has delivered hundreds of preformed strand production machines to customers worldwide.

We provide not only equipment, but also complete manufacturing solutions, including:

• customized tooling design based on customer drawings
• PLC automation control systems
• stable operation for 24-hour production
• installation, commissioning, and operator training

Our goal is simple:

to provide stable, reliable manufacturing equipment for the global power transmission industry.

Frequently Asked Questions

Is the duckbill shape produced by grinding?

No. The duckbill end is formed directly using a precision cutting tool system during the forming process.

What materials can the machine process?

The machine is mainly designed for aluminum alloy wire used in preformed strand products.

Can the machine be customized?

Yes. The tooling system and machine configuration are customized according to wire diameter, pitch, forming height, and lay direction.

Contact Xingang Machinery

If you are looking for an automatic duckbill forming machine that shapes preformed strand ends without grinding, feel free to contact us.

Please provide the following information:

• wire diameter
• pitch
• forming height
• lay direction
• expected production capacity

Our engineering team will provide a technical solution and quotation within 24 hours.

Email: info@xingangmachinery.com
WhatsApp: +86 15814626624
Website: www.xingangmachinery.com