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What are the production bases for butterfly-shaped optical cables

A butterfly-shaped optical cable production base involves specialized extrusion, cooling, and traction equipment to manufacture compact, high-performance optical cables with a butterfly cross-section.

Production Equipment and Process

The production of butterfly-shaped optical cables typically uses a sequentially arranged system including a pay-off mechanism, extrusion mechanism, cooling and drying mechanism, and traction device. The extrusion mechanism consists of an extruder and a specialized die, where the die core is wedge-shaped at the front and rectangular at the rear. Multiple wire outlet holes allow simultaneous production of several butterfly-shaped cables, and an extrusion control device regulates the number of cables produced at once, ensuring precision and uniformity in the cable structure (CN115625868A).

Cable StructureButterfly-shaped optical cables feature a central communication unit flanked by two parallel non-metallic strength members (FRP) and an additional steel wire for tensile strength. The cable is encased in a low-smoke zero-halogen (LSZH) sheath, often reinforced with a steel tape moisture-proof layer and a PE outer sheath for UV resistance and durability. Specialized bend-resistant optical fibers enhance bandwidth and network performance, while the simple, lightweight design facilitates easy installation and maintenance (GJYXFHS pipeline cable).

Prefabricated End Cables

For indoor and FTTH applications, prefabricated end butterfly drop cables are used. These cables combine microcable units with an outer sheath and strength members, allowing easy routing and connection in tight spaces. The prefabricated design improves production efficiency, protects optical fibers during installation, and reduces the required wiring area.

The preparation process includes stripping the outer sheath, threading connectors, fixing microcable lengths, cleaning and curing fiber ends, and assembling the connector components (CN105093454B). AdvantagesSpace-saving: Compact design ideal for indoor environments and crowded conduits. High bandwidth: Supports data transmission up to 100 Gbps.

Easy installation: Flexible and lightweight, simplifying routing and splicing. Durability: Resistant to temperature, moisture, vibration, and UV exposure. Security: Difficult to tap, ensuring data integrity (indoor applications).

ApplicationsButterfly-shaped optical cables are widely used in FTTH networks, indoor wiring, and pipeline conduit entries, providing reliable, high-speed connectivity while minimizing space and installation complexity. Prefabricated end cables are particularly useful for fast deployment in urban optical networks, while pipeline variants offer enhanced tensile and compression resistance for outdoor or conduit applications.

What are the production bases for butterfly-shaped optical cables

CN117452578A

In a second aspect, the present application provides a process for producing a butterfly-shaped optical cable, for producing a butterfly-shaped optical cable as described above,...

CN115625868A

In the production process of the butterfly optical cable, the optical fiber and the strength member of the butterfly optical cable are usually arranged and then passed through the...

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CN117452578A

The butterfly-shaped optical cable is additionally provided with the foaming filling unit, so that the compression resistance, impact resistance, heat preservation, heat insulation and water resistance

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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