Published: 2026-08-11
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 PUR sheath, oil-resistant, wear-resistant, hydrolysis-resistant, highly flexible industrial control cable
1. Materials and Structural Parameters
Shanghai Suoqi Polyurethane (PUR) Sheathed High-Flexibility Industrial Control Cable — The Ideal Partner for Industrial Automation In today's era of continuously rising industrial automation, industrial control systems demand extremely stringent performance from cables. From the efficient operation of automated production lines to the precise control of CNC machines, to the flexible collaboration of industrial robots, every link relies on reliable power and signal transmission. Shanghai Suoqi Wire & Cable Co., Ltd., leveraging its profound technical expertise and keen insight into market demands, has meticulously developed polyurethane (PUR) sheathed high-flexibility industrial control cables, providing stable, efficient, and durable connection solutions for a variety of industrial scenarios.
1. Core Product Features (1) Excellent Oil, Abrasion, and Hydrolysis Resistance Oil Resistance: In industrial production environments, lubricating oils, hydraulic oils, and other oily substances are ubiquitous. Shanghai Suoqi's polyurethane cables feature PUR sheaths that exhibit strong resistance to various industrial oils. Professional testing shows that after immersion in common industrial lubricating oils for 168 hours, the volume change of the cable sheath is less than 2%, weight change approaches zero, and the sheath surface shows no swelling or softening, consistently maintaining good physical and mechanical properties. This ensures long-term stable operation in oily environments, with power and signal transmission completely unaffected.
Wear resistance: In equipment such as automated production lines and logistics transfer systems, cables are frequently subjected to friction and dragging. PUR material itself has excellent wear resistance, with a very low Taber abrasion rate. Tests show that under standard test conditions, the wear per 1000 revolutions is ≤0.03g. The unique formulation and process enable the cable outer sheath to form a dense and tough wear-resistant layer, effectively resisting wear caused by long-term friction, greatly extending the cable's service life, and reducing maintenance costs and downtime caused by cable wear.
Hydrolysis Resistance: In humid or industrial environments with condensation, cables are prone to hydrolysis risk. PUR-sheathed cables from the company feature excellent hydrolysis resistance through special molecular structure design and additive formulation. Even when exposed to high-humidity environments for extended periods, or occasionally coming into contact with water, the insulation performance and sheath mechanical properties of the cables will not degrade due to hydrolysis, ensuring long-term reliable operation of the cables in complex and humid working conditions.
(2) High-flexibility design, suitable for complex dynamic environments Multi-stranded finely twisted conductor structure: The cable conductor is carefully twisted from multiple strands of ultra-fine oxygen-free bare copper wire, complying with VDE 0295 Class 6 conductor standards. This structure gives the conductor extremely high flexibility, easily coping with frequent bending and twisting actions. In multiple bending tests, the cable conductor showed no breakage or damage, ensuring uninterrupted power and signal transmission, making it especially suitable for application scenarios with very high flexibility requirements for cables, such as industrial robot joints and drag chain systems.
Optimized Cabling and Sheathing Processes: By optimizing cable pitch and adopting short-pitch flexible anti-twisting technology, internal cable stress concentration is reduced. Combined with the soft and flexible PUR sheath, the cable overall has excellent bending performance. Its minimum bending radius can reach 5 times the cable outer diameter (fixed installation) or 7.5 times the cable outer diameter (mobile installation), allowing flexible routing in complex industrial environments and easily adapting to the movement trajectories of various equipment, ensuring smooth operation.
(3) Excellent Electrical Insulation Performance High-Quality Insulation Materials: The insulation layer is made of a high-mechanical-performance hybrid elastomer material, which has excellent electrical insulation properties. Its dielectric strength reaches ≥20kV/mm, effectively withstanding high-voltage surges, preventing electrical breakdown, and ensuring the safety of power transmission. Even in industrial power grid environments with significant voltage fluctuations, it can operate stably, providing reliable power support for industrial equipment.
Stable Insulation Resistance: The cable's insulation resistance remains stable during long-term use. At an ambient temperature of 20℃, the insulation resistance is ≥1000 MΩ·km per kilometer, effectively reducing the risk of leakage, lowering energy loss, ensuring the accuracy and stability of signal transmission, and meeting the requirements of industrial control systems for high-precision signal transmission.
(4) Strong Environmental Adaptability and Resistance to High and Low Temperatures: It can operate normally across a wide temperature range, with a working temperature range of -40℃ to 90℃, and some special specifications can even withstand higher temperatures. In low-temperature environments, the PUR sheath remains flexible without hardening or cracking, ensuring that the cable can bend and function normally in cold storage, low-temperature workshops, and other low-temperature environments. In high-temperature environments, the cable's insulation properties and sheath mechanical performance are not affected, allowing stable operation in high-temperature industrial scenarios such as steel smelting and plastic processing.
Electromagnetic Interference Resistance: For industrial control cables, the ability to resist electromagnetic interference is crucial. Suoqi's polyurethane cables use tinned copper wire braided flexible cable high-density shielding mesh layers, with a shielding coverage of over 85%, effectively resisting complex electromagnetic interference (EMI) and radio frequency interference (RFI) in industrial sites, ensuring the purity and accuracy of transmitted signals and guaranteeing the stable and precise operation of industrial control systems.
2. Performance Technical Indicators
Shanghai Suoqi Polyurethane (PUR) Sheathed High-Flexibility Industrial Control Cable — The Ideal Partner for Industrial Automation In today's era of continuously rising industrial automation, industrial control systems demand extremely stringent performance from cables. From the efficient operation of automated production lines to the precise control of CNC machines, to the flexible collaboration of industrial robots, every link relies on reliable power and signal transmission. Shanghai Suoqi Wire & Cable Co., Ltd., leveraging its profound technical expertise and keen insight into market demands, has meticulously developed polyurethane (PUR) sheathed high-flexibility industrial control cables, providing stable, efficient, and durable connection solutions for a variety of industrial scenarios.
1. Core Product Features (1) Excellent Oil, Abrasion, and Hydrolysis Resistance Oil Resistance: In industrial production environments, lubricating oils, hydraulic oils, and other oily substances are ubiquitous. Shanghai Suoqi's polyurethane cables feature PUR sheaths that exhibit strong resistance to various industrial oils. Professional testing shows that after immersion in common industrial lubricating oils for 168 hours, the volume change of the cable sheath is less than 2%, weight change approaches zero, and the sheath surface shows no swelling or softening, consistently maintaining good physical and mechanical properties. This ensures long-term stable operation in oily environments, with power and signal transmission completely unaffected.
Wear resistance: In equipment such as automated production lines and logistics transfer systems, cables are frequently subjected to friction and dragging. PUR material itself has excellent wear resistance, with a very low Taber abrasion rate. Tests show that under standard test conditions, the wear per 1000 revolutions is ≤0.03g. The unique formulation and process enable the cable outer sheath to form a dense and tough wear-resistant layer, effectively resisting wear caused by long-term friction, greatly extending the cable's service life, and reducing maintenance costs and downtime caused by cable wear.
Hydrolysis Resistance: In humid or industrial environments with condensation, cables are prone to hydrolysis risk. PUR-sheathed cables from the company feature excellent hydrolysis resistance through special molecular structure design and additive formulation. Even when exposed to high-humidity environments for extended periods, or occasionally coming into contact with water, the insulation performance and sheath mechanical properties of the cables will not degrade due to hydrolysis, ensuring long-term reliable operation of the cables in complex and humid working conditions.
(2) High-flexibility design, suitable for complex dynamic environments Multi-stranded finely twisted conductor structure: The cable conductor is carefully twisted from multiple strands of ultra-fine oxygen-free bare copper wire, complying with VDE 0295 Class 6 conductor standards. This structure gives the conductor extremely high flexibility, easily coping with frequent bending and twisting actions. In multiple bending tests, the cable conductor showed no breakage or damage, ensuring uninterrupted power and signal transmission, making it especially suitable for application scenarios with very high flexibility requirements for cables, such as industrial robot joints and drag chain systems.
Optimized Cabling and Sheathing Processes: By optimizing cable pitch and adopting short-pitch flexible anti-twisting technology, internal cable stress concentration is reduced. Combined with the soft and flexible PUR sheath, the cable overall has excellent bending performance. Its minimum bending radius can reach 5 times the cable outer diameter (fixed installation) or 7.5 times the cable outer diameter (mobile installation), allowing flexible routing in complex industrial environments and easily adapting to the movement trajectories of various equipment, ensuring smooth operation.
(3) Excellent Electrical Insulation Performance High-Quality Insulation Materials: The insulation layer is made of a high-mechanical-performance hybrid elastomer material, which has excellent electrical insulation properties. Its dielectric strength reaches ≥20kV/mm, effectively withstanding high-voltage surges, preventing electrical breakdown, and ensuring the safety of power transmission. Even in industrial power grid environments with significant voltage fluctuations, it can operate stably, providing reliable power support for industrial equipment.
Stable Insulation Resistance: The cable's insulation resistance remains stable during long-term use. At an ambient temperature of 20℃, the insulation resistance is ≥1000 MΩ·km per kilometer, effectively reducing the risk of leakage, lowering energy loss, ensuring the accuracy and stability of signal transmission, and meeting the requirements of industrial control systems for high-precision signal transmission.
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).