Published: 2026-08-09
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: Polyurethane cable - TPU/PUR sheathed cable
1. Materials and Structural Parameters
Shanghai Suoqi Polyurethane (TPU/PUR) Sheathed Cable Product Details: In modern industry and various complex environmental applications, cables face rigorous tests and have extremely high requirements for performance and reliability. The polyurethane (TPU/PUR) sheathed cables meticulously developed by Shanghai Suoqi have become a trusted choice in many industries due to their excellent material performance and advanced technology, laying a solid foundation for the stable operation of equipment.
1. Outstanding Performance to Meet Diverse Challenges (1) High Temperature Resistance and Oxidation Resistance Ordinary plastic materials tend to oxidize in environments of 70°C and above, whereas Shanghai Suoqi's TPU/PUR sheathed cables demonstrate extraordinary high temperature and oxidation resistance. TPU material generally withstands temperatures up to 120°C. In high-temperature environments, the electrical and physical performance of the cables remains stable, effectively preventing issues such as sheath softening or increased conductor resistance caused by excessive heat. These cables are suitable for power supply and signal transmission of equipment in high-temperature workshops such as metallurgy and glass manufacturing.
(2) Super Wear Resistance Properties PUR material is renowned for its outstanding wear resistance, performing particularly well in high-flexibility cable applications, capable of withstanding over 20 million or even 50 million bendings. In industrial automation production lines, CNC machine tools, and other equipment, cables need to be frequently bent and moved. TPU/PUR sheaths can withstand friction from internal components and have passed Taber wear resistance tests (CS-17 wheels, 1000g load). The wear is extremely low, greatly extending cable service life and reducing equipment maintenance costs.
(3) Outstanding Low-Temperature Resistance In the aerospace field, TPU and PUR materials are highly favored for their excellent cold resistance. Such cables from Shanghai Suoqi maintain far superior transmission stability in low-temperature environments compared to other materials. Even at operating temperatures as low as -40°C, the cables still retain good flexibility and electrical performance, without hardening or cracking, making them suitable for power and signal connections in cold storage, polar operation equipment, and outdoor equipment in northern winter conditions.
(4) Oil-resistant, Non-toxic, and Environmentally Friendly TPU and PUR both have oil-resistant properties, are not easily corroded by oil stains, and are odorless, non-toxic, and meet environmental standards. In industries such as food and beverage processing and chemicals, cables not only need to withstand oily environments but also ensure food safety and avoid contamination. The oil-resistant and heat-sealable performance of this cable allows it to maintain its functionality even with frequent exposure to greasy substances, while being safe and environmentally friendly, providing reliable protection for the production process.
(5) High Strength and Reliability Tensile Design: Internal tensile components such as Kevlar fiber, aramid yarn, or galvanized mild steel wire rope are added, capable of withstanding tensile forces up to [X] N. During towing operations of heavy equipment such as port cranes and electric loaders, it effectively prevents cable breakage and ensures stable equipment operation.
Stable electrical performance: The insulation layer is made of specially modified materials, with a dielectric strength of ≥[X] kV/mm and an insulation resistance of ≥[X] MΩ·km (20℃). Even in harsh environments such as humidity and high salt fog, it can effectively block current, prevent leakage and short circuits, and ensure stable and safe power transmission.
2. Scientific and Rigorous Structural Design (1) Conductor Uses 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 that effectively reduce power transmission losses. Multi-strand twisted structure endows conductors with flexibility and elasticity, enhancing overall cable flexibility and bending life.
(2) Insulation Layer: Specially modified insulating materials that combine good electrical insulation properties with mechanical performance. While ensuring high dielectric strength and insulation resistance, they also have excellent flexibility and temperature resistance, with an operating temperature range of -40°C to 120°C, meeting the requirements for stable operation under different environmental temperatures.
(3) Sheath: The TPU/PUR outer sheath has a surface hardness of [X] Shore A, not only providing a bright appearance but also excellent wear resistance, chemical corrosion resistance, and low-temperature performance. It tightly wraps the internal structure, offering comprehensive protection to the conductor and insulation layer during cable bending, stretching, and friction.
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).