Category: Polyurethane Cable
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Shanghai Suoqi Polyurethane (PUR) Jacket Highly Flexible Industrial Control Cable — The ideal partner for industrial automation.
In today's era of continuously increasing industrial automation, industrial control systems place extremely stringent requirements on the performance of cables. From the efficient operation of automated production lines, to the precise control of CNC machine tools, to the flexible collaboration of industrial robots, every link relies on reliable power and signal transmission. Shanghai Suoqi Wire & Cable Co., Ltd., with its profound technical accumulation and keen insight into market demands, has meticulously developed polyurethane (PUR) sheathed highly flexible industrial control cables to provide stable, efficient, and durable connection solutions for various industrial scenarios.
1. Core Product Features
(1) Excellent oil resistance, wear resistance, and hydrolysis resistance
Oil Resistance: In industrial production environments, oils such as lubricating oil and hydraulic oil are everywhere. The polyurethane cables from Shanghai Suoqi have PUR sheaths that demonstrate extremely strong resistance to various industrial greases. Professional testing shows that after soaking in common industrial lubricating oils for 168 hours, the cable sheath's volume change rate is less than 2%, the weight change rate is nearly zero, and the sheath surface shows no swelling or softening. The sheath consistently maintains good physical and mechanical properties, ensuring long-term stable operation in oily environments without any impact on power and signal transmission.
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 condensate industrial environments, cables are prone to hydrolysis risks. SOE's PUR sheathed cables feature exceptional hydrolysis resistance through special molecular structure design and additive formulations. Even when exposed to high humidity for long periods or occasionally exposed to water, the cable's insulation and sheath mechanical properties do not degrade due to hydrolysis, ensuring long-term reliable operation under complex humid conditions.
(2) High flexibility design, adaptable to complex dynamic environments
Multi-strand fine-stranded conductor structure: The cable conductor is carefully strung from multiple ultra-fine oxygen-free bare copper wires, in accordance with VDE 0295 Class 6 conductor standards. This structure gives the conductor extremely high flexibility, allowing it to easily withstand frequent bending and twisting. In multiple bending tests, the cable conductor showed no breakage or damage, ensuring continuity of power and signal transmission. It is especially suitable for applications with extremely high flexibility requirements, such as industrial robot joints and drag chain systems.
Optimized Cabling and Sheathing Process: By optimizing the cabling pitch and using short-pitch flexible anti-torsion stranding technology, internal stress concentration within the cable is reduced. At the same time, paired with a soft and elastic PUR sheath, the cable as a whole exhibits excellent bending performance. Its minimum bending radius can reach 5 times the cable's outer diameter (for fixed installation) or 7.5 times the cable's outer diameter (for moving installation). In complex industrial environments, it can be routed flexibly, easily adapting to the movement paths of various equipment and ensuring smooth operation of the devices.
(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 shocks, 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°C, 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
High and low temperature resistance: Capable of operating normally over a wide temperature range, with a temperature range of -40°C~90°C, and some special specifications can even withstand higher temperatures. In low-temperature environments, PUR sheaths remain soft and do not harden or crack, ensuring cables bend and operate properly in cold storage, low-temperature workshops, and other low-temperature environments; In high-temperature environments, the cable's insulation performance and sheath mechanical properties are not affected, allowing stable operation in high-temperature industrial settings such as steel smelting and plastic processing.
Electromagnetic interference resistance: For industrial control cables, resistance to electromagnetic interference is crucial. Suoqi's polyurethane cables use a high-density shielding mesh layer made of tinned copper wire braided flexible cables, with a shielding coverage rate of over 85%. This effectively resists complex electromagnetic interference (EMI) and radio frequency interference (RFI) at industrial sites, ensuring pure and accurate transmission signals and guaranteeing stable and precise operation of industrial control systems.
2. Rich application scenarios
(1) Industrial Automated Production Line
Equipment Connection: Used on automated production lines in automotive manufacturing, electronics manufacturing, and other fields to connect various automated equipment, such as robotic arms, automated assembly equipment, and material handling equipment. Its high flexibility and bending resistance can adapt to frequent movement and multi-angle bending during production, ensuring stable transmission of power and control signals, guaranteeing efficient and precise production line operation and significantly improving production efficiency.
Signal transmission: Connecting sensors, controllers, actuators, and other devices into an organic whole, enabling data collection, processing, and command execution during production. With excellent electromagnetic interference resistance, it can accurately transmit various weak signals in complex industrial electromagnetic environments, ensuring control accuracy and stability for automated production lines and reducing production errors.
(2) The field of CNC machine tools
Power and signal transmission: Provides a stable power supply for CNC machine tool spindle motors, feed motors, and other components, while transmitting control signals to ensure that the motors can respond accurately to control commands during high-speed cutting and precision machining, achieving high-precision processing operations. Its oil-resistant and wear-resistant properties can effectively withstand corrosion from cutting fluids, lubricating oils, and other contaminants generated during machine tool operation, as well as friction between the cable and machine components during frequent movement, ensuring long-term stable operation of the cable and reducing machine maintenance costs.
Connection to the machine tool control system: Connecting the machine's CNC system with various functional components, such as tool magazines and worktables, enables the CNC system to monitor and control the machine's operating status in real time. The highly flexible design meets the cable bending needs during complex movements, ensuring timely and accurate signal transmission, and improving automation and processing quality.
(3) Industrial Robot Systems
Joint Connections: When industrial robots are operating, the joints need to move frequently and flexibly, requiring the connecting cables to be highly flexible and durable. Polyurethane cables from our company can closely follow the movement paths of the robot joints, and even after repeated bending and twisting cycles, they still maintain good electrical and mechanical performance, providing stable power and signal transmission to the robot joints, ensuring smooth and accurate robot movements to complete complex industrial tasks.
End effector connection: Connect the robot's end effector, such as a gripper or spray gun, to transmit control signals and power, enabling the end effector to accurately perform various operations. Its excellent oil resistance and wear resistance allow it to adapt to the various industrial media and complex working conditions that the end effector encounters during operation, ensuring the reliability and stability of the robot's work.
(4) Logistics Automation Equipment
AGV trolley power supply and signal transmission: In automated warehousing and logistics systems, AGV (Automated Guided Vehicle) vehicles need to move and steer frequently. SolQi's polyurethane cables serve as the power and signal transmission cables for AGVs, meeting their requirements in complex operating environments. The highly flexible design ensures that cables maintain good connections during frequent movement of AGV trolleys. Their wear and tensile resistance ensure the cables are not easily damaged during long-term use, guaranteeing efficient and stable operation and enhancing the automation level of warehousing and logistics.
Automated sorting equipment connection: Used to link various components of automated sorting equipment, such as conveyor belt motors and sorting robots, enabling power supply and signal exchange between devices. Its strong environmental adaptability allows it to operate normally in logistics warehouses with high dust and oil contamination, ensuring the sorting equipment accurately identifies and sorts goods, improving logistics sorting efficiency and accuracy.
3. Product Specifications and Customization Services
(1) Standard Product Specifications
Conductor cross-sectional area: Covers various specifications from 0.14 to 120mm², allowing flexible cable selection according to the power requirements of different industrial equipment, ensuring stable and efficient power transmission to meet the power needs of everything from small sensors to large power equipment.
Rated Voltage: Offers multiple rated voltage levels such as 300/300V, 300/500V, 450/750V, to meet the electrical requirements of different industrial control systems, ensuring safe and reliable operation of cables in various industrial voltage environments.
Number of cable cores: Offering a wide range of core options such as single-core, double-core, and multi-core, meeting the power transmission and signal control needs of different equipment. For example, single-core cables are commonly used for lighting equipment power, while multi-core cables can transmit power and multiple signals simultaneously, enabling integrated control of complex industrial equipment.
(2) Customized Solutions
Special performance customization: Fully understanding the particularities of different industrial scenarios, Shanghai Suo enterprises can customize polyurethane cables with special properties according to customer needs. For example, for the food processing industry, custom food-grade PUR sheathed cables are made of materials that meet food safety standards, are non-toxic, odorless, and pollution-free, can directly contact food, and meet the hygiene requirements of food processing equipment; For cables requiring use in flammable and explosive environments, flame-retardant and explosion-proof cables can be customized, ensuring safe use in hazardous environments through special structural design and material selection.
Structure and Size Customization: The structure and size of the cable can be customized according to the specific installation space and wiring requirements of the customer's equipment. Whether it is round, flat, or special-shaped cables, they can be precisely manufactured to meet the compact installation needs of special equipment. At the same time, the cable's outer diameter, length, and other size parameters can be flexibly adjusted to achieve perfect compatibility with the customer's equipment, reducing installation difficulty and enhancing the overall aesthetics and operational stability of the equipment.
Color and Label Customization: To facilitate customers in identifying and managing cables in complex industrial environments, we provide cable color and label customization services. According to customer requirements, the outer sheath of the cable can be customized to specific colors, such as yellow, blue, black, etc. At the same time, text can be printed on the cable surface to indicate product model, specifications, production batch, usage precautions, and other information, making it easier for customers to quickly identify and distinguish cables for different purposes, thereby improving industrial production management efficiency.
4. Professional Quality Assurance
(1) Advanced production processes
Strict Raw Material Selection: Controlling product quality from the source, we conduct rigorous quality inspections on every batch of raw materials, including copper for conductors, insulation materials, and PUR sheath materials. All raw materials are sourced from well-known domestic and international suppliers to ensure their quality meets relevant international and national standards as well as Shanghai Suoqi's strict internal quality requirements. Only raw materials that pass multiple rounds of testing can enter the production process, laying a solid foundation for the manufacturing of high-quality polyurethane cables.
Precision production equipment and processes: Introducing internationally advanced cable production equipment, such as high-precision stranding machines, extruders, braiding machines, etc., and adopting mature and advanced production processes. In the conductor stranding process, the stranding machine is controlled by PLC, achieving automatic tension and lay length feedback to ensure uniform twisting of copper wires and minimize internal stress; insulation extrusion uses a twin-screw extruder, accurately controlling temperature, pressure, and extrusion speed, so that the insulation layer is evenly and tightly coated on the conductor; outer sheath extrusion uses multi-layer co-extrusion or combined extrusion processes, with real-time monitoring of various parameters during production to ensure that the PUR sheath is free of air holes and delamination, with a smooth surface and uniform thickness.
(2) A comprehensive quality inspection system
Multi-stage Quality Inspection: A comprehensive quality inspection system has been established, covering everything from incoming raw material inspection, production process patrols, to full inspection of finished products before leaving the factory. Upon arrival of raw materials, comprehensive testing is conducted on the conductor’s resistivity, purity, and the physical and chemical properties of insulation materials and PUR sheath materials; during production, each step of the cable manufacturing process is monitored in real-time and spot-checked, including conductor stranding quality, insulation thickness, shielding coverage, etc.; before the finished product leaves the factory, full performance testing of the cables is conducted, including electrical performance tests (such as insulation resistance, voltage withstand testing, conductor resistance, etc.), mechanical performance tests (such as tensile strength, bending performance, abrasion resistance, etc.), and environmental performance tests (such as oil resistance, water resistance, high and low temperature resistance, etc.), ensuring that every cable leaving the factory meets high-quality standards.
Simulated Industrial Environment Testing: To ensure the reliability of products in actual industrial environments, a specialized simulated industrial environment laboratory has been set up. In the laboratory, various complex industrial conditions are simulated, such as high temperature, high humidity, oil contamination, and electromagnetic interference, to conduct long-term performance testing of cables. For example, cables are placed in a simulated high-temperature workshop environment for long-term powered operation tests to monitor changes in their electrical and mechanical performance; in a simulated oil-contaminated environment, cables undergo immersion tests to observe the oil resistance of the sheath and overall cable performance changes. Only products that pass all rigorous simulated tests are approved for delivery to customers.
