Troubleshooting of Polyurethane Cables in Rail Transit

Key Technical Data

99.99%
85%
125℃
40℃
90℃

In scenarios such as chemical engineering and machine tool processing, cutting fluids, oil stains, and acidic or alkaline media continuously corrode cable sheaths, causing general PVC/rubber materials to age and crack rapidly, significantly reducing service life. To address this issue, Shanghai Suoqi has optimized its polyurethane cables both in materials and processes: the conductors are multi-stranded, finely twisted, oxygen-free bare copper wires; the insulation is made of special elastomer materials; the outer sheath is made of imported polyurethane PUR/TPU, resistant to oil, acid, alkali, UV, and aging. In practical applications, the performance of products made with polyurethane, PUR, TPU, and other materials has gained recognition from customers in the automation, production line, and CNC fields. Customization according to drawings and direct shipment of stock are supported. For details, call 13311756197.

Product Features

(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.

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.

(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.

CNC machine tools and machining centers: tool magazine drag chain cables resist cutting oil penetration, with a bending radius of ≤7.5×D (D is the cable outer diameter), maintaining stability during frequent tool changes and equipment movements; The spindle cooling system cable is resistant to temperatures up to 125°C, matched with a high-pressure coolant environment to ensure efficient equipment operation and support precision operations in the machining industry.

Application scenarios

Industrial automation, machinery manufacturing, port terminals, and mining operations

Customized services

Direct sales from Shanghai Suoqi cable factory source, supporting on-demand customization of multiple core counts and specifications. Ample stock available, nationwide shipping. Consultation hotline: 13311756197

Frequently Asked Questions

What is the temperature resistance of polyurethane cables?

Conventional polyether PUR is suitable for temperatures from -40°C to 90°C, and can be higher in the short term. When selecting, consider ambient temperature and mobile status for confirmation.

Will polyurethane cables hydrolyze?

Ether-based PUR has excellent hydrolysis resistance, far superior to polyester-based types. Ether-based formulations should be specified for long-term humid environments.