Published: 2026-07-04
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 Sheath, High Temperature Resistant, Wear Resistant, Cold Resistant, Oil Resistant
1. Materials and Structural Parameters
Polyurethane Cable (TPU/PUR Sheath) Product Details In modern industrial and complex environmental applications, cables need to withstand rigorous tests, with extremely high requirements for performance and reliability. The polyurethane (TPU/PUR) sheath cables launched by Shanghai Suoqi stand out with their excellent material performance and advanced technology, becoming a trusted choice in many industries.
1. Outstanding Performance, Creating Exceptional Quality (1) High Temperature Resistance, Stable Operation Ordinary plastic materials are prone to oxidation in environments above 70°C, whereas our TPU/PUR sheathed cables demonstrate exceptional high-temperature resistance. TPU materials generally withstand temperatures up to 120°C, maintaining stable electrical and physical properties under such high-temperature conditions, effectively preventing issues like sheath softening and increased conductor resistance. This makes them excel in power supply and signal transmission for equipment in high-temperature workshops such as metallurgy and glass manufacturing, ensuring continuous and efficient operation of the equipment.
(2) Super wear resistance, long-lasting durability PUR material is renowned for its outstanding wear resistance, especially outstanding in highly flexible cable applications, capable of withstanding over 20 million or even 50 million bendings. In scenarios where industrial automation production lines, CNC machine tools, and other equipment frequently bend and move, TPU/PUR sheaths can effectively resist friction from internal components. After Taber wear resistance testing (CS-17 wheel, 1000g load), wear is extremely low, greatly extending cable service life, reducing equipment maintenance costs, and saving enterprises significant funds and time.
(3) Cold-resistant and low-temperature tolerant, fearless of severe cold In the aerospace field, TPU and PUR materials are highly favored for their excellent cold resistance. Our cables exhibit transmission stability far beyond that of other materials in low-temperature environments, maintaining good flexibility and electrical performance even at working temperatures as low as -40°C, without hardening or cracking. Whether it is cold storage, polar operation equipment, or power and signal connections for outdoor equipment in northern winter, they can easily cope, ensuring normal operation of equipment in extreme low-temperature conditions.
(4) Oil Resistance, Suitable for Complex Environments: Both TPU and PUR have excellent oil resistance, are not easily eroded by oil stains, and are odorless and non-toxic, meeting environmental protection standards. In industries such as food and beverage processing and chemical manufacturing, cables must not only withstand oily environments but also ensure food safety and prevent contamination. The oil-resistant and easy-to-heat-seal properties of this cable allow its performance to remain unaffected during frequent contact with greasy substances, providing reliable support for the production process while being safe and environmentally friendly, in line with modern enterprises' strict requirements for the production environment.
2. Scientific Structure to Ensure Excellent Quality (1) Conductor Uses multi-strand ultra-fine finely twisted oxygen-free bare copper wire with a purity of ≥99.99%, compliant with VDE 0295 CLASS 5/6 standards, featuring low resistance characteristics that effectively reduce power transmission losses. The multi-strand twisted structure gives the conductor flexibility and elasticity, enhancing overall cable flexibility and bending life, ensuring stable and efficient power transmission in complex operating environments.
(2) Insulation Layer Specially modified insulating materials combine excellent electrical insulation and mechanical properties. While ensuring high dielectric strength (≥[X] kV/mm) and insulation resistance (≥[X] MΩ·km, 20°C), they also offer excellent flexibility and temperature resistance, with operating temperatures ranging from -40°C to 120°C, meeting stable operation requirements under different environmental temperatures and providing a solid line of defense for cable safety.
(3) Sheath TPU/PUR outer sheath has surface hardness reaching [X] Shore A, not only attractive in appearance but also with excellent wear resistance, chemical corrosion resistance, and low-temperature resistance. It tightly wraps the internal structure, providing comprehensive protection for conductors and insulation layers during cable bending, stretching, and friction, effectively resisting various adverse external factors damaging the cable's internal structure.
(4) Shielding layer (optional) For applications sensitive to electromagnetic interference, such as automated production lines and medical equipment, tin-plated copper wire braided shielding mesh or aluminum foil tin-plated copper wire double-layer shielding structure can be installed. Shielding coverage rate ≥85%, effectively shielding external electromagnetic interference, ensuring stable and accurate cable transmission signals, meeting the equipment's strict electromagnetic compatibility requirements, and ensuring zero interference in signal transmission.
3. Diverse Applications to Meet Different Needs (1) Industrial Automation Industrial Robot System: On the wrist of a six-axis robot, the cable must withstand a torsion of ±180°/m. This cable adopts a spiral winding structure design to meet its high torsion requirements; The seventh-axis track cable has a tensile strength of >150N/mm², adapting to continuous stretching during track movement, ensuring flexible and stable robot operation and enhancing industrial production automation.
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).