2026-10-26
Shanghai Suoqi Cable Co., Ltd. has been deeply engaged in the field of special flexible cables. Below is a professional interpretation of PU/PUR cables from three dimensions: material structure, performance advantages and application scenarios.
I. Material and Structural Parameters
Polyether Polyurethane PUR Anti-Seawater Cable - Tension-Resistant, Wear-Resistant and Tear-Resistant Product Details. I. Product Photos. II. Core Advantages. Outstanding anti-seawater corrosion: the outer sheath is made of imported high-quality polyether polyurethane (PUR), which offers superstrong resistance to chloride ions, salt and various corrosive microorganisms in seawater. According to professional laboratory tests simulating the seawater environment, after 2,000 hours of continuous immersion in a 3.5% sodium chloride solution (simulated seawater), the outer sheath showed no swelling, cracking or aging, and its physical and electrical properties were almost undiminished, ensuring long-term stable use in marine environments.
Superstrong tensile performance: high-strength Kevlar fiber or galvanized tensile steel wire is specially added inside as tensile elements, evenly distributed in the cable structure to effectively bear external tension. Tests show that it can withstand a tensile force of up to [X] N. Under working conditions such as dragging and hoisting of underwater equipment, the cable is guaranteed not to break its core or wires, greatly extending its service life.
Top-grade wear and tear resistance: the PUR outer sheath features 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 cut and scratch resistance. Under harsh conditions such as reef friction, seabed sediment scouring and mechanical impact, it can effectively resist wear and tearing and maintain cable integrity.
High flexibility and bend resistance: the conductor adopts multi-strand ultra-fine precision-stranded oxygen-free copper wire conforming to VDE 0295 Class 6, paired with a highly elastic TPE insulation layer, giving the cable excellent flexibility. Tests show it can withstand more than 10 million bending cycles, with a minimum bending radius of only 6D (D is the cable outer diameter), adapting to complex working conditions such as frequent steering of underwater robots and reciprocating motion of drag chain systems.
Efficient and stable transmission: the low-resistance conductor design ensures efficient power transmission with low energy loss. For signal transmission, shielding layers such as tinned copper wire braided shielding mesh can be equipped as needed, with a shielding coverage of ≥90%, effectively resisting electromagnetic interference and ensuring stable transmission of control and data signals for underwater equipment.
Wide temperature range adaptation: the operating temperature range is -40°C to 90°C; it works normally both in the severe cold of polar waters and the high temperature of tropical oceans, with performance unaffected by temperature, making it suitable for underwater projects in different sea areas worldwide. Free of harmful heavy metals and halogens. Insulation resistance ≥500 MΩ/km, voltage withstand rating up to 300/500V, flame retardancy in compliance with IEC 60332-1, safe and reliable in use.
III. Application Scenarios. Marine aquaculture: used for power supply and signal transmission of underwater aerators, feeding machines and water quality monitoring equipment; resistant to corrosion by seawater and aquaculture chemicals, and adapted to frequent movement and bending of equipment in water.
Underwater detection: provides power and control signals for underwater robots (ROVs), underwater cameras, sonar detectors and other equipment, meeting their flexible operation needs in complex underwater environments and ensuring stable data transmission.
Ocean energy: in offshore wind farms, it connects equipment inside wind turbine towers, submarine cables and converters for stable transmission of large amounts of power; in tidal and wave energy generation equipment, it serves as a key connecting cable adapted to harsh marine conditions.
Ports and ships: suitable for drag chain systems of port cranes to power equipment; on ships, used for wiring of bilge equipment and deck machinery, resisting corrosion from sea breeze, salt spray and the complex engine room environment.
II. Performance and Technical Indicators
Rated voltage 300/500V to 0.6/1kV; minimum bending radius 6D (D is the cable outer diameter); applicable temperature range -40°C to +90°C; high tensile strength and excellent wear resistance, ensuring long-term stable operation under harsh conditions such as oil stains and humidity.
III. Application Scenarios
PU/PUR cables are widely used in industrial automation, lifting and transportation, ports and docks, and other fields.
About Shanghai Suoqi
Shanghai Suoqi Wire & Cable Co., Ltd. is a professional cable enterprise specializing in the R&D, design, production and sales of special flexible cables. Its product range covers reel cables, flat cables, drag chain cables, encoder cables, PU/PUR cables, anti-seawater cables, anti-seawater network cables, aerial work platform cables and other series, widely used in port machinery, mining, industrial automation, marine engineering and other fields. For more product information or inquiries, please call 13311756197 (same number on WeChat).