2026-10-23
Shanghai Suoqi Cable Co., Ltd. has long been dedicated to the field of special flexible cables. Below is a professional interpretation of the PU/PUR cable from three dimensions: material structure, performance advantages and application scenarios.
I. Material and Structural Parameters
Shanghai Suoqi polyurethane (TPU/PUR) sheathed cable product details. In modern industry and various complex environmental applications, cables face severe tests, placing extremely high requirements on their performance and reliability. The polyurethane (TPU/PUR) sheathed cables carefully built by Shanghai Suoqi, with outstanding material properties and advanced technology, have become the trusted choice of many industries, laying a solid foundation for stable equipment operation.
I. Outstanding performance, meeting diverse challenges. (1) High temperature and oxidation resistance. Ordinary plastic raw materials are prone to oxidation at 70℃ and above, while Shanghai Suoqi's TPU/PUR sheathed cables show extraordinary high-temperature and oxidation resistance. TPU materials can generally withstand temperatures up to 120℃. In high-temperature environments, the electrical and physical properties of the cable remain stable, effectively avoiding problems such as sheath softening and increased conductor resistance caused by excessive temperature. It is suitable for equipment power supply and signal transmission in high-temperature workshops such as metallurgy and glass manufacturing.
(2) Super abrasion resistance. PUR material is famous for its outstanding abrasion resistance and performs prominently in high-flexibility cable applications, withstanding more than 20 million or even 50 million bending cycles. In industrial automated production lines, CNC machine tools and other equipment, cables need to bend and move frequently. TPU/PUR sheaths can resist the friction of internal equipment components. Through Taber abrasion testing (CS-17 wheel, 1000g load), the abrasion loss is extremely low, greatly extending the cable service life and reducing equipment maintenance costs.
(3) Outstanding low-temperature performance. In the aerospace field, TPU and PUR materials are favored for their outstanding cold resistance. Shanghai Suoqi's such cables have far better transmission stability in low-temperature environments than other materials. When the working temperature is as low as -40℃, the cable still maintains good flexibility and electrical properties without hardening or brittleness. It is suitable for power and signal connections of cold storage, polar operation equipment and outdoor equipment in northern winters.
(4) Oil resistance, non-toxic and environmentally friendly. Both TPU and PUR have oil-resistant properties, are not easily eroded by oil contamination, and are odorless, non-toxic and compliant with environmental standards. In food and beverage processing, chemical and other industries, cables must not only cope with oily environments but also ensure food safety and avoid pollution. The oil-resistant and easy heat-sealing performance of this cable ensures that its performance is not affected when frequently contacting oily substances, while being safe and environmentally friendly, providing reliable protection for the production process.
(5) High strength and reliability. Tensile design: tensile elements such as Kevlar fibers, aramid yarns or galvanized flexible steel wire ropes are added inside, which can withstand tensile forces up to [X] N. In dragging operations of heavy equipment such as port cranes and electric scrapers, it effectively prevents the cable from being pulled apart and ensures stable equipment operation.
Stable electrical performance: the insulation layer uses specially modified materials with a dielectric strength ≥[X] kV/mm and insulation resistance ≥[X] MΩ·km (20℃). Even in harsh environments such as humidity and high salt fog, it can effectively isolate current, prevent leakage and short circuits, and ensure stable and safe power transmission.
II. Scientific and rigorous structural design. (1) Conductor: multi-strand ultra-fine finely stranded oxygen-free bare copper wires with purity ≥99.99%, complying with the VDE 0295 CLASS 5/6 standard, with low resistance characteristics, effectively reducing power transmission loss. The multi-strand stranding structure gives the conductor softness and elasticity, improving the overall flexibility and bending life of the cable.
(2) Insulation layer: specially modified insulation materials with both good electrical insulation and mechanical properties. While ensuring high dielectric strength and insulation resistance, it has outstanding flexibility and temperature resistance, with a working temperature range up to -40℃ to +120℃, meeting the stable operation needs under different ambient temperatures.
(3) Sheath: the surface hardness of the TPU/PUR outer sheath reaches [X] Shore A. It not only has a beautiful appearance but also has outstanding wear resistance, chemical corrosion resistance and low-temperature resistance. It tightly wraps the internal structure, providing all-round protection for the conductor and insulation layer during cable bending, stretching and friction.
II. Performance and Technical Specifications
Rated voltage 300/500V to 0.6/1kV; minimum bending radius 6D (D is the cable outer diameter); applicable temperature range -40℃ to +90℃; high tensile strength and excellent abrasion resistance, suitable for long-term stable operation under harsh working conditions such as oil contamination 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 products cover 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 (also available on WeChat).