Published: 2026-09-04
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
45 kW shovel loader cable, PUR high wear-resistant polyurethane cable Product structure: Made of multi-strand finely twisted oxygen-free bare copper wire, conforming to VDE 0295 CLASS 5 standard, and tin-plated wire can also be provided according to requirements, ensuring good conductivity and flexibility, and able to withstand frequent movement, bending, and stretching of the cable during shovel loader operations.
Specially modified high-strength elastomer insulation material meets strict electrical performance requirements, has excellent insulation effects, and can effectively prevent electrical faults such as leakage and short circuits.
Optimized short-pitch, torque-free stranding, central/interstitial filler tensile elements such as aramid fibers or galvanized soft steel wire ropes enhance the overall tensile performance of the cable and prevent damage to the internal structure under force during use.
Inner sheath: Made of specially modified high-strength nitrile/PUR material, it features a low-viscosity high-strength extrusion design, which can protect the internal structure of the cable from erosion by oil, water, chemicals, etc., while also providing some cushioning and support for the cable.
Reinforcement layer: Usually uses aramid braided reinforcement layer, and some products may use Kevlar braided anti-torsion structure to further enhance the cable's tensile and torsional strength, preventing the cable from twisting or deforming during coiling and dragging, and avoiding damage to the internal conductors.
Outer Sheath: Made of high-wear-resistant polyurethane (PUR) material with superior mechanical properties, usually yellow or black in color. This material has characteristics such as wear resistance, oil resistance, acid and alkali resistance, UV resistance, tear resistance, waterproofing, weather resistance, and aging resistance, effectively protecting the cable from harsh underground environments and extending the cable's service life.
Product Performance Electrical Performance: The rated voltage is generally 0.6/1KV, and the test voltage can reach 3500V - 4000V, meeting the power transmission requirements of a 45-kilowatt shovel loader. It has good insulation performance and stable electrical performance, ensuring reliable transmission of power and signals during operation. Mechanical Performance: It has high tensile strength, capable of withstanding the pulling force on the cable during shovel loader operations; good torsion resistance, able to withstand twisting stress generated by equipment movement; excellent bending performance, with a minimum bending radius of 8-10 times the cable diameter, suitable for the frequent movement and bending of the shovel loader. Environmental Adaptability: The operating temperature range is generally -30℃ to 90℃, with some products capable of operating in environments from -40℃ to 100℃. It remains flexible in low temperatures and does not deteriorate or get damaged at high temperatures. Additionally, the cable has good weather resistance, water resistance, oil resistance, and chemical corrosion resistance, allowing it to work stably in humid, dusty, oily, and chemically active underground environments. Product Advantages Durability: Through optimized structural design and high-quality material selection, the cable can withstand long-term winding, dragging, pulling, twisting, and bending without easily cracking, breaking, or aging. It has a long service life, reducing equipment downtime caused by cable replacement and improving production efficiency.
High stability: Good electrical and mechanical properties ensure that the cable can stably transmit power and signals while supplying a 45 kW electric shovel, reducing equipment downtime caused by cable failures and ensuring the continuity of underground operations.
Good safety: The cable has characteristics such as flame retardancy and leakage resistance, which can effectively prevent fires and electric shock accidents, ensuring the safety of underground workers and equipment. At the same time, its outer sheath's high wear resistance and tear resistance can also reduce safety hazards caused by cable damage.
Application Scenarios Mainly used in underground mining operations for 45 kW electric loaders, providing power transmission and control connections. At the same time, they can also be used in other similar mining machinery equipment, such as tunneling machines and rock drilling carts, playing an important role in situations where frequent mobile power supply is required. Additionally, it can be applied to related lifting, transportation, and loading equipment in waste incineration plants, waste-to-energy plants, lifting and hoisting sites, large logistics sites, iron mines, coal yards, cement plants, sand and gravel plants, port and dock sites, serving as connecting cables under drums/reels or similar winding dragshaft devices
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).