Published: 2026-08-15
Shanghai Suoqi Cable Co., Ltd. has been deeply engaged in the field of special flexible cables. The following provides a professional interpretation of polyurethane cables from three dimensions: material structure, performance advantages, and application scenarios.
Product Original Reference: Polyether Polyurethane (PUR) Anti-Seawater Cable, Tensile-Resistant, Wear-Resistant, Tear-Resistant
1. Materials and Structural Parameters
Polyether-based Polyurethane (PUR) Seawater-resistant Cable - Tensile, Abrasion-resistant, and Tear-resistant Product Details 1. Product Photos 2. Core Advantages Excellent Resistance to Seawater Corrosion The outer sheath uses imported high-quality polyether-based polyurethane (PUR), which has extremely strong resistance to chloride ions, salt, and various corrosive microorganisms in seawater. According to professional laboratory simulations of seawater environments, the cable was continuously immersed in a 3.5% sodium chloride solution (simulated seawater) for 2000 hours. The outer sheath showed no swelling, cracking, or aging, and its physical and electrical properties remained almost unchanged, ensuring long-term stable use in marine environments.
Excellent tensile performance: High-strength Kevlar fibers or galvanized tensile steel wires are specially added inside as tensile elements, evenly distributed throughout the cable structure, effectively bearing external tension. Tests show that it can withstand a tensile force of up to [X] N, ensuring that the cable core and wires remain intact under conditions such as underwater equipment dragging and lifting, significantly extending its service life.
The top-grade wear-resistant and tear-resistant PUR outer sheath has high hardness and strong toughness, with wear resistance several times that of ordinary cable sheaths. The surface is treated with a special process, providing excellent resistance to cutting and scratching. Under harsh conditions such as friction with reefs, scouring by seabed silt, and mechanical impacts, it can effectively resist wear and tearing, maintaining the integrity of the cable.
High flexibility and bending resistance: The conductor uses multi-strand ultra-fine finely twisted oxygen-free copper wire, compliant with VDE 0295 Class 6 standards, combined with a highly elastic TPE insulation layer to give the cable outstanding flexibility. Tested to withstand over 10 million bending cycles, with a minimum bending radius of only 6D (D is the cable outer diameter), suitable for complex conditions such as frequent steering of underwater robots and reciprocating motion of the drag chain system.
Efficient and stable transmission The conductor is designed with low resistance, ensuring efficient power transmission with low energy loss. For signal transmission, shielding layers can be installed as needed, such as tin-plated copper wire braided shielding mesh, with a shielding coverage rate of ≥90%, effectively resisting electromagnetic interference and ensuring stable transmission of control and data signals for underwater equipment.
Wide temperature adaptability: The operating temperature range is -40℃ to 90℃, and it can operate normally in the extreme cold of polar seas and the high temperatures of tropical oceans. Its performance is not affected by temperature, making it suitable for underwater projects in different sea regions worldwide. It contains no harmful heavy metals or halogens. Insulation resistance is ≥500MΩ/km, with a voltage withstand rating of 300/500V, and flame retardant grade meets IEC 60332-1 standard, ensuring safe and reliable use.
3. Application Scenarios Marine Aquaculture: Used for power supply and signal transmission of underwater aerators, feeders, and water quality monitoring equipment, resistant to corrosion from seawater and aquaculture chemicals, and adapted to frequent movement and bending operation conditions in water.
Underwater Detection: Provides power and control signals for underwater robots (ROVs), underwater cameras, sonar detectors, and other equipment, meeting their flexible operational needs in complex underwater environments and ensuring stable data transmission.
Marine energy: connects internal equipment of wind turbine towers, submarine cables, and converters in offshore wind farms to stably transmit large amounts of electricity; Used as a key connecting cable in tidal and wave energy power generation equipment, adapting to harsh marine conditions.
Ports and Ships: Suitable for port crane drag chain systems to supply power to equipment; used on ships for under-hatch equipment and deck machinery wiring, resisting corrosion from sea wind, salt spray, and complex engine room environments.
2. Performance Technical Indicators
Rated voltage 300/500V to 0.6/1kV; minimum bending radius 6D (D is the outer diameter of the cable); applicable temperature range -40℃ to 90℃; high tensile strength, excellent wear resistance, and long-term stable operation under harsh conditions such as oil contamination and humidity.
3. Application Scenarios
Polyurethane cables are widely used in industrial automation, lifting and transportation, ports, and terminals.
About Shanghai Suoqi
Shanghai Suoqi Electric Wire & Cable Co., Ltd. is a specialized cable enterprise focusing on the research and development, design, production, and sales of special flexible cables. The company's products cover a series including reel cables, flat cables, drag chain cables, encoder cables, polyurethane cables, seawater-resistant cables, seawater-resistant network cables, and high-altitude vehicle cables, which are widely used in ports machinery, mining, industrial automation, marine engineering, and other fields. For more product information or inquiries, please call 13311756197 (same number on WeChat).