Published: 2026-09-03
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.
1. Materials and Structural Parameters
Core Selling Points: This cable is specially designed for complex and harsh industrial scenarios such as tunnel excavation and mining operations. Its conductor is made of multi-strand ultra-fine oxygen-free copper wire, strictly complying with VDE0295 CLASS 6 standards. This conductor design not only significantly increases the conductive area, allowing smoother current transmission, but also delivers conductivity far superior to ordinary cables, effectively reducing power loss and providing continuous and stable power support for equipment like wet spraying vehicles. The special blended PVC insulation layer has undergone a unique treatment process, maintaining stable insulation performance in various harsh environments, including high and low temperatures and humidity. It is resistant to aging and cracking, ensuring long-lasting and reliable insulation, fundamentally reducing the risk of leakage. The tinned copper mesh shielding layer with over 80% shielding density acts like a solid protective shield, efficiently resisting all kinds of external electromagnetic interference, ensuring signal transmission remains stable and accurate in complex industrial electromagnetic environments, and preventing equipment malfunctions caused by signal disruption. The PURJ polyurethane sheath is particularly outstanding in performance, boasting several times the wear resistance of ordinary rubber sheaths. It resists wear even during frequent friction with the ground, rocks, and other hard objects; it also provides excellent oil resistance, with no swelling or deterioration even after long-term contact with industrial oils such as hydraulic oil and diesel; its weather resistance is also excellent, maintaining good physical properties in both harsh winter cold and scorching summer heat. Furthermore, the cable has been specially reinforced internally with galvanized anti-tensile steel wire ropes and Kevlar fibers. The combination of these two high-strength materials greatly enhances the cable’s tensile strength, allowing it to easily withstand the pulling forces generated during equipment movement and operation. At the same time, it offers excellent resistance to twisting and bending, reducing the likelihood of kinking or breaking during reel deployment and retraction, significantly extending the cable’s service life.
Specifications Conductor: Made with multi-strand ultra-fine finely twisted oxygen-free copper wire, strictly compliant with VDE0295 CLASS 6 standards. Single wire diameter as fine as 0.1mm, with the number of strands ranging from dozens to hundreds depending on cable specifications, ensuring flexibility and conductivity.
Insulation layer: Uses special mixed PVC material, with uniform insulation thickness between 0.5mm and 2mm, precisely matched according to cable rated voltage. Insulation resistance ≥ 100MΩ·km (at 20°C).
Shielding layer: Made of tinned copper mesh braid, with a shielding density of ≥80%, and a uniform tin plating thickness, which can effectively prevent copper mesh oxidation and improve the longevity of the shielding effect.
Sheath: PURJ polyurethane material, sheath thickness ranges from 1mm to 3mm, smooth surface, with good scratch resistance.
Operating temperature: -40℃ to 90℃. Within this temperature range, all performance indicators of the cable can remain stable, without hardening, embrittlement, or softening.
Rated voltage: Can be customized according to actual needs, commonly 300/500V, 0.6/1kV, etc., and can be customized up to 10kV to meet the power requirements of different equipment.
Cable outer diameter: varies according to specifications, ranging from 10mm to 50mm, and can be selected according to the installation space of the equipment.
Minimum bending radius: 4 times the cable outer diameter for fixed installation, and 8 times the cable outer diameter for movable installation, making it convenient for wiring installation in different scenarios.
Applicable scenarios: Widely used in waste incineration plants, providing stable power for equipment such as garbage cranes in high-temperature, dusty, and corrosive gas environments; in waste-to-energy plants, facing complex electrical equipment and oily environments, the cables' oil resistance and anti-interference performance are fully utilized; at hoisting and lifting sites, whether small cranes indoors or large outdoor lifting equipment, the cables can adapt to frequent movement and bending; during port and dock operations, humid and saline environments pose a significant test for cable weather resistance, yet this cable can easily cope, suitable for ship grabs, gantry cranes, and other equipment; in underground mining operations, in dark, damp, and potentially rock-impact environments, the cable's wear resistance and tensile strength ensure the normal operation of underground mining mobile equipment.
2. Performance Technical Indicators
Rated voltage 300/500V to 0.6/1kV; minimum bending radius 6D (D is the outer diameter of the cable); applicable temperature range -40℃ to 90℃; high tensile strength, excellent wear resistance, and long-term stable operation under harsh conditions such as oil contamination and humidity.
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).