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
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Low, medium, and high voltage cables require stranded conductors for flexibility, strength, and current-carrying capacity.
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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
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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
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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
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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
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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
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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:
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High precision and consistency in conductor geometry
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Support for large conductor cross-sections (up to 1200 mm²)
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Capability to produce both standard and compacted strands
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Automation for tension control, bobbin handling, and pitch adjustment
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Suitable for continuous, high-volume production
