Rigid Stranding Machine Applications

Rigid Stranding Machine – Applications Overview

A Rigid Stranding Machine is a key piece of equipment in the cable manufacturing industry, primarily used to strand single copper or aluminum wires into conductors with round, sector-shaped, or pre-spiraled cross-sections. These machines are essential for producing high-capacity power cables used in various energy transmission and distribution systems.

Main Applications of Rigid Stranding Machines

1. Power Transmission & Distribution Cables

• Low, medium, and high voltage cables require stranded conductors for flexibility, strength, and current-carrying capacity.

• Rigid stranders are used to produce compacted and non-compacted round or sector-shaped conductors for both underground and overhead power lines.

2. Milliken Conductors

• Rigid stranding machines are used to assemble segmented copper conductors (Milliken type) for extra-high voltage (EHV) and high voltage (HV) AC transmission cables, improving skin effect performance and load capacity.

3. Renewable Energy Infrastructure

• Wind farms, solar plants, and hydropower stations require heavy-duty aluminum or copper conductors for long-distance power transmission. Rigid stranders help manufacture these conductor cores efficiently.

4. Utility and Grid Modernization Projects

• Modern smart grids require pre-spiraled and sector-shaped conductors for better space utilization and reduced losses. Rigid stranding machines help produce the core conductors needed for grid upgrades.

5. Submarine & Subterranean Cables

• For subsea or underground cable applications, compact and high-density stranded conductors are crucial. Rigid stranders provide the strength and dimensional accuracy needed for such demanding installations.

6. Industrial Cable Manufacturing

• Used in the production of industrial control cables, mining cables, and railway signaling cables, where custom conductor profiles and consistent stranding pitch are required.

 Why Rigid Stranding Machines Are Preferred:

• High precision and consistency in conductor geometry

• Support for large conductor cross-sections (up to 1200 mm²)

• Capability to produce both standard and compacted strands

• Automation for tension control, bobbin handling, and pitch adjustment

• Suitable for continuous, high-volume production