2026-10-24
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 (PUR) sheathed high-flexibility industrial control cable — the ideal partner for industrial automation. In today's era of ever-increasing industrial automation, industrial control systems place extremely stringent requirements on cable performance. From the efficient operation of automated production lines, to the precise control of CNC machine tools, and to the flexible collaboration of industrial robots, every link is inseparable from reliable power and signal transmission. Relying on deep technical accumulation and keen insight into market needs, Shanghai Suoqi Wire & Cable Co., Ltd. has carefully crafted polyurethane (PUR) sheathed high-flexibility industrial control cables, providing stable, efficient and durable connection solutions for various industrial scenarios.
I. Core product features. (1) Outstanding oil, abrasion and hydrolysis resistance. Oil resistance: in industrial production environments, lubricating oil, hydraulic oil and other oil contamination are everywhere. The PUR sheath of Shanghai Suoqi's PU/PUR cables shows extremely strong tolerance to various industrial oils and greases. According to professional testing, after being soaked in common industrial lubricating oil for 168 hours, the volume change rate of the cable sheath is less than 2%, the weight change rate is close to zero, and the sheath surface shows no swelling or softening, always maintaining good physical and mechanical properties, ensuring long-term stable work in oil-contaminated environments without any impact on power and signal transmission.
Abrasion resistance: in automated production lines, logistics transmission systems and other equipment, cables are frequently subjected to friction and dragging. PUR material itself has outstanding abrasion resistance, with an extremely low Taber abrasion value. According to tests, under standard test conditions, the abrasion loss per 1000 revolutions is ≤0.03g. The unique formula and process form a dense and tough wear-resistant layer on the cable outer sheath, effectively resisting wear caused by long-term friction, greatly extending the cable service life, and reducing maintenance costs and downtime caused by cable wear.
Hydrolysis resistance: in humid industrial environments with condensate, cables are prone to hydrolysis risks. Suoqi's PUR sheathed cables, through special molecular structure design and additive formulas, have outstanding hydrolysis resistance. Even after long-term exposure to high humidity or occasional contact with water, the insulation performance and sheath mechanical properties of the cable do not decline due to hydrolysis, ensuring long-term reliable operation of the cable under complex humid working conditions.
(2) High-flexibility design, adapting to complex dynamic environments. Multi-strand finely stranded conductor structure: the cable conductor is carefully twisted from multi-strand ultra-fine oxygen-free bare copper wires, complying with the VDE 0295 Class 6 conductor standard. This structure gives the conductor extremely high flexibility and easily copes with frequent bending and twisting. In repeated bending tests, the cable conductor showed no breakage or damage, ensuring the continuity of power and signal transmission. It is especially suitable for application scenarios with extremely high cable flexibility requirements such as industrial robot joints and drag chain systems.
Optimized cabling and sheath process: by optimizing the stranding pitch and adopting short-pitch flexible anti-twist stranding technology, the internal stress concentration of the cable is reduced. Paired with a soft and elastic PUR sheath, the cable as a whole has outstanding 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). In complex industrial environments, it can be flexibly wired and easily adapts to the movement trajectories of various equipment, ensuring smooth equipment operation.
(3) Outstanding electrical insulation performance. High-quality insulation materials: the insulation layer uses blended elastomer materials with high mechanical performance, has excellent electrical insulation performance with a dielectric strength of up to ≥20kV/mm, can effectively withstand high-voltage shocks and prevent electrical breakdown, ensuring safe power transmission. Even in industrial grid environments with large voltage fluctuations, it operates stably, providing reliable power support for industrial equipment.
Stable insulation resistance: the insulation resistance of the cable remains stable during long-term use. At an ambient temperature of 20℃, the insulation resistance per kilometer is ≥1000MΩ·km, effectively reducing leakage risks, lowering power 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. High and low temperature resistance: it can work normally within a wide temperature range, with a working temperature range of -40℃~+90℃, and some special specifications can even withstand higher temperatures. In low-temperature environments, the PUR sheath remains soft without hardening or brittleness, ensuring normal bending and use of the cable in low-temperature environments such as cold storage and low-temperature workshops; in high-temperature environments, the insulation performance and sheath mechanical properties of the cable are not affected, and it can operate stably in high-temperature industrial scenarios such as steel smelting and plastic processing.
Anti-electromagnetic interference performance: for industrial control cables, anti-electromagnetic interference capability is crucial. Suoqi's PU/PUR cables use a tinned copper wire braided high-density shielding mesh layer with a shielding coverage of more than 85%, effectively resisting complex electromagnetic interference (EMI) and radio frequency interference (RFI) in industrial sites, ensuring the purity and accuracy of transmitted signals, and ensuring the stable and precise operation of industrial control systems.
II. Performance and Technical Specifications
Shanghai Suoqi polyurethane (PUR) sheathed high-flexibility industrial control cable — the ideal partner for industrial automation. In today's era of ever-increasing industrial automation, industrial control systems place extremely stringent requirements on cable performance. From the efficient operation of automated production lines, to the precise control of CNC machine tools, and to the flexible collaboration of industrial robots, every link is inseparable from reliable power and signal transmission. Relying on deep technical accumulation and keen insight into market needs, Shanghai Suoqi Wire & Cable Co., Ltd. has carefully crafted polyurethane (PUR) sheathed high-flexibility industrial control cables, providing stable, efficient and durable connection solutions for various industrial scenarios.
I. Core product features. (1) Outstanding oil, abrasion and hydrolysis resistance. Oil resistance: in industrial production environments, lubricating oil, hydraulic oil and other oil contamination are everywhere. The PUR sheath of Shanghai Suoqi's PU/PUR cables shows extremely strong tolerance to various industrial oils and greases. According to professional testing, after being soaked in common industrial lubricating oil for 168 hours, the volume change rate of the cable sheath is less than 2%, the weight change rate is close to zero, and the sheath surface shows no swelling or softening, always maintaining good physical and mechanical properties, ensuring long-term stable work in oil-contaminated environments without any impact on power and signal transmission.
Abrasion resistance: in automated production lines, logistics transmission systems and other equipment, cables are frequently subjected to friction and dragging. PUR material itself has outstanding abrasion resistance, with an extremely low Taber abrasion value. According to tests, under standard test conditions, the abrasion loss per 1000 revolutions is ≤0.03g. The unique formula and process form a dense and tough wear-resistant layer on the cable outer sheath, effectively resisting wear caused by long-term friction, greatly extending the cable service life, and reducing maintenance costs and downtime caused by cable wear.
Hydrolysis resistance: in humid industrial environments with condensate, cables are prone to hydrolysis risks. Suoqi's PUR sheathed cables, through special molecular structure design and additive formulas, have outstanding hydrolysis resistance. Even after long-term exposure to high humidity or occasional contact with water, the insulation performance and sheath mechanical properties of the cable do not decline due to hydrolysis, ensuring long-term reliable operation of the cable under complex humid working conditions.
(2) High-flexibility design, adapting to complex dynamic environments. Multi-strand finely stranded conductor structure: the cable conductor is carefully twisted from multi-strand ultra-fine oxygen-free bare copper wires, complying with the VDE 0295 Class 6 conductor standard. This structure gives the conductor extremely high flexibility and easily copes with frequent bending and twisting. In repeated bending tests, the cable conductor showed no breakage or damage, ensuring the continuity of power and signal transmission. It is especially suitable for application scenarios with extremely high cable flexibility requirements such as industrial robot joints and drag chain systems.
Optimized cabling and sheath process: by optimizing the stranding pitch and adopting short-pitch flexible anti-twist stranding technology, the internal stress concentration of the cable is reduced. Paired with a soft and elastic PUR sheath, the cable as a whole has outstanding 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). In complex industrial environments, it can be flexibly wired and easily adapts to the movement trajectories of various equipment, ensuring smooth equipment operation.
(3) Outstanding electrical insulation performance. High-quality insulation materials: the insulation layer uses blended elastomer materials with high mechanical performance, has excellent electrical insulation performance, and its dielectric