Published: 2026-08-02
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 Text Reference: Seawater-Resistant Cable - Polyurethane Polyether Special Cable for Seawater
1. Materials and Structural Parameters
Shanghai Suoqi - Anti-Seawater Cable - Polyurethane Polyether Special Cable for Seawater Product Details 1. Company Introduction Shanghai Suoqi, as a leader in the field of wires and cables, has long focused on the research, development, production, and sales of special wires and cables. The company has a professional team composed of senior technical engineers. With advanced research and development technology, a strict quality control system, and stable raw material supply channels, it is committed to providing high-quality, high-performance, and customized wire and cable solutions to global customers, establishing a good reputation and credibility in the industry.
2. Product Structure Analysis (1) Conductor The conductor is made of high-purity oxygen-free copper, twisted into multiple strands. This conductor not only has excellent electrical conductivity, effectively reducing energy loss during transmission, but also possesses good flexibility, allowing the cable to accommodate various complex bending requirements during installation and use. The multi-strand twisted structure enhances the conductor's tensile strength, ensuring stable power transmission even when subjected to considerable external pulling forces.
(2) Insulation Layer: A high-molecular polymer insulating material with a special formula is selected, which has excellent electrical insulation properties, can withstand high voltage, effectively prevent current leakage, and ensure electrical safety. At the same time, this insulating material also has a certain resistance to seawater, salt spray, and other corrosive elements, preventing a decline in insulation performance due to seawater corrosion and thereby extending the service life of the cable.
(3) Shielding Layer (Some Models) For some applications sensitive to electromagnetic interference, some cables are equipped with shielding layers. Using shielding methods such as aluminum foil or tin-plated copper braiding can effectively block external electromagnetic interference, ensuring the accuracy and stability of internal signal transmission, suitable for equipment connections with high signal transmission quality requirements.
(4) Sheath The outer sheath is made of polyurethane polyether material, a high-performance material specifically designed for seawater resistance. It has extremely strong resistance to seawater corrosion and can remain immersed in seawater for a long time without being corroded or damaged; at the same time, it also has good wear resistance, oil resistance, and weather resistance. Under the complex conditions of the marine environment, such as abrasion from sand and stones, oil contamination, or extreme temperature changes, it can still maintain good physical properties and protective functions, providing reliable protection for the internal structure of the cable.
3. Product Performance Advantages (1) Excellent Resistance to Seawater Corrosion Through special processing and material selection, this cable can operate stably in seawater for long periods. Simulated seawater immersion and salt spray corrosion tests have shown that over a testing period of several years, various performance indicators of the cable, such as insulation resistance and conductor resistance, remain within stable ranges, with no significant performance degradation or structural damage. This effectively ensures normal power supply and signal transmission for equipment in marine environments.
(2) High flexibility and resistance to bending fatigue Cables have good flexibility and a small bending radius, easily adapting to various complex installation environments and equipment movement trajectories. After extensive bending fatigue testing, even after millions of bendings, the conductors, insulation, and sheaths remain intact, without issues such as core breakage or insulation damage, making them suitable for marine equipment requiring frequent movement and bending, such as offshore cranes and underwater robots.
(3) Excellent Electrical Performance The combination of the conductor's superior conductivity and the high insulation performance of the insulating layer allows the cable to maintain low loss and high stability during power transmission. At the same time, the effective function of the shielding layer can resist various electromagnetic interferences, ensuring that the cable accurately transmits signals. Whether used for power delivery or data communication, it can meet the high requirements of equipment.
(4) Broad Environmental Adaptability In addition to being resistant to seawater corrosion, this cable can also adapt to other harsh conditions in the marine environment. Within the temperature range of -40°C to 80°C, the cable's flexibility and electrical performance remain unaffected, allowing reliable operation in both cold polar seas and hot tropical ocean regions. In addition, it has a certain resistance to oil, chemicals, and other substances, making it suitable for various complex marine operation scenarios.
IV. Application Scenarios (1) Marine Engineering Construction In the construction of offshore oil platforms, cross-sea bridges, and underwater tunnels, large amounts of power supply and signal transmission cables are required. Shanghai Suo Qi's seawater protection cables, with their excellent corrosion resistance and stable electrical performance, can meet the requirements of these projects in harsh marine environments, ensuring smooth construction and normal equipment operation.
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).