In the manufacture of power cables and overhead conductors, large-gauge conductors (such as large-cross-section copper or aluminum conductors and ACSR) place extremely high demands on stranding equipment regarding rigidity, lay-length stability, and tension control. Thanks to their rigid frame structure, rigid-frame stranders are the ideal choice for stranding these large conductors.
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What advantages do rigid-frame stranders offer for large-gauge conductors?
Rigid frame stranders utilize a frame-based structure where the central shaft bears no load from the weight of the wire reels. This design ensures high structural rigidity and excellent overall performance; the small rotational radius allows for high production speeds. This structure is particularly well-suited for large-gauge conductors, effectively preventing issues such as loose strands or uneven lay lengths.
Why is higher rigidity required for stranding large-gauge conductors?
Large-gauge conductors are heavy and have large diameters, meaning individual wires can easily develop significant internal stress during the stranding process. Insufficient equipment rigidity can lead to problems like loose stranding, fluctuations in lay length, and operational vibration. The front-and-rear dual-support structure of rigid-frame stranders provides superior rigidity and smooth operation, significantly reducing these risks.
Can rigid-frame stranders improve production efficiency for large-gauge conductors?
Yes. The main motors of rigid stranding machine typically feature DC drives or fully digital transmission systems combined with PLCs, ensuring smooth operation and precise control. Some models incorporate features such as 6-speed gearboxes with forward/reverse capabilities or 36-speed gearboxes; these offer a wide speed range and high traction force, making them suitable for the efficient production of compacted cores for large-cross-section XLPE cables.
Which conductor types are suitable for rigid-frame stranders?
Rigid-frame stranders are primarily used for the stranding, compacting, drawing, and single-core pre-forming of aluminum, copper, and ACSR conductors (in shaped or round profiles). They are widely used in the production of power cables, overhead conductors, and ACSR.
Characterized by high rigidity, stability, and lay-length precision, rigid frame stranding machines are particularly well-suited for stranding large-gauge conductors, making them indispensable core equipment in the manufacture of high-end cables such as power cables and overhead conductors. As a specialized manufacturer of stranding equipment, Hefei Smarter offers rigid stranding machines that meet the production requirements for a wide range of large-gauge conductors, providing efficient and stable manufacturing solutions for overseas cable factories.