Published: 2026-07-22
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: Flexible Glossy Polyurethane Cable_Industrial Port Machinery Wind Power Offshore Equipment
1. Materials and Structural Parameters
Shanghai Suoqi Flexible Glossy Polyurethane Cable Product Details In demanding and complex applications such as industrial port machinery and offshore wind power equipment, there are extremely high requirements for cable flexibility, weather resistance, and reliability. The flexible glossy polyurethane cable developed by Shanghai Suoqi, with its unique material and exquisite craftsmanship, perfectly adapts to such special operating conditions, providing solid support for the stable operation of equipment.
1. Core Performance, Designed for Special Scenarios (1) Extreme Flexibility, Responding Flexibly to Complex Working Conditions The cable adopts a special flexible design and manufacturing process, with multi-strand ultra-fine twisted oxygen-free copper conductors paired with soft insulating materials, giving the cable excellent bending performance. The minimum bending radius can reach 5 times the cable's outer diameter. During frequent winding and dragging of industrial port machinery, as well as the vibration and swinging of offshore wind power equipment, it can bend flexibly without easily causing conductor breakage or insulation layer damage, ensuring that the cable can still stably transmit power and signals under complex motion conditions.
(2) Glossy surface protection, resisting harsh environmental erosion. Weather and aging resistance: The glossy polyurethane jacket has excellent weather resistance, effectively resisting the erosion of UV rays, salt spray, humidity, and other offshore and outdoor environmental factors. Through salt spray testing (5% NaCl solution, sprayed for 1000 hours) and UV aging testing (xenon lamp aging for 1000 hours), the jacket shows no fading, cracking, or chalking. It maintains good physical and electrical performance during long-term use, making it suitable for offshore wind power equipment exposed outdoors for extended periods.
Anti-stain and easy to clean: The glossy and smooth cover surface resists oil stains, dust, marine organisms, and other dirt, making it easy to clean and wipe even if it does get dirty. In the oily environment of industrial port machinery and the risk of marine organisms attaching to offshore equipment, it can reduce maintenance frequency, lower maintenance costs, and extend cable service life.
(3) High Strength and Reliability Tensile and Wear Resistance: An internal layer of Kevlar tensile fibers is added, able to withstand tensile forces up to [X] N, effectively preventing the cable from breaking during heavy towing operations on equipment such as port cranes and cable cars. The glossy polyurethane sheath has excellent wear resistance. According to the Taber abrasion test (CS-17 wheel, 1000g load), the wear is minimal, capable of resisting abrasion from port ground gravel and friction damage to internal components of wind power equipment.
Stable Electrical Performance: The insulation layer uses specially modified materials, with a dielectric strength of ≥[X] kV/mm and an insulation resistance of ≥[X] MΩ·km (20℃). Even in humid and high-salt marine environments, it can effectively block current, prevent leakage and short circuits, and ensure the stability and safety of power transmission for the equipment.
2. Scientific structural design ensures excellent quality (1) Conductor Made of multi-strand ultra-fine finely twisted oxygen-free bare copper wire (purity ≥99.99%), compliant with VDE 0295 CLASS 5/6 standards, featuring low resistance characteristics to effectively reduce power transmission losses. The multi-strand twisted structure makes the conductor soft and elastic, further enhancing cable flexibility and bending life.
(2) Insulation Layer: Specially modified insulating materials possess excellent electrical insulation and mechanical properties. While ensuring high dielectric strength and insulation resistance, they also feature outstanding flexibility and temperature resistance, with an operating temperature range of -40℃ to 120℃, allowing stable operation under different environmental temperatures.
(3) Sheath: The outer sheath is made of glossy polyurethane, with a surface hardness of [X] Shore A. It not only gives the cable a smooth and bright appearance but also provides excellent resistance to wear, chemical corrosion, and low temperatures. It tightly wraps the internal structure, offering comprehensive protection to the conductor and insulation during bending, stretching, and friction of the cable.
(4) Shielding layer (optional) For scenarios sensitive to electromagnetic interference, such as wind power equipment, a double-layer shielding structure with aluminum foil and tin-plated copper wire can be equipped. Shielding coverage rate ≥85%, effectively shielding external electromagnetic interference to ensure stable and accurate cable transmission signals, meeting the equipment's strict electromagnetic compatibility requirements.
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).