Published: 2026-09-06
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
In recent years, polyurethane has become increasingly important in the cable industry, as this material exhibits rubber-like mechanical properties at certain temperatures; therefore, wires and cables made from polyurethane materials are called polyurethane cables.
Mechanical characteristics: The insulation material of the cable is generally not subjected to high mechanical stress. On the other hand, sheaths are widely used. This is especially suitable for flexible control and connection cables, which are often pulled over sharp corners and rough surfaces. This may lead to protruding cuts when stretching the cable during flexible use. Compressive stress may also occur due to squeezing and impact from tools and machines.
The most important mechanical properties of PUR polyurethane cables are: 1. High tensile strength 2. High tear resistance 3. Notch resistance 4. Abrasion resistance 5. Alternating bending resistance 6. Impact resistance 7. Flexibility at low temperatures Chemical properties Chemical resistance depends on many factors, such as chemical type, reaction time, temperature, volume, concentration, and of course, the type of polyurethane used. Compared to many other materials (such as rubber or PVC), PUR has better chemical resistance to reactivity.
The outstanding chemical properties of polyurethane cables are: 1. Good resistance to mineral oils 2. Good resistance to alcohol-free gasoline 3. Good resistance when stored in water 4. Good resistance to many solvents Chemical examples: 1. After prolonged exposure to humidity and warmth, polyester-type polyurethane poses a risk of microbial decomposition.
2. After prolonged exposure to warm water or tropical climates, polyester-based polyurethane undergoes chemical reactions. The result is a reduction in mechanical strength.
The polyether-type polyurethane used in Nanyou cables is resistant to microbial degradation; it is also relatively more resistant to hydrolytic degradation.
Note: Under all climatic conditions, polyether-based polyurethane has weather resistance and ozone resistance. However, it may be subject to fading from sunlight, but this does not affect the performance of polyurethane cables.
Application scope of polyurethane cables: Used for control equipment, such as machine tools, flow and assembly lines, conveyor systems and production lines, machinery and equipment construction, conveyor technology (such as work platforms and transportation systems), automotive industry, handling and automation technology, iron, steel and chemical industries, (such as drills, angle grinders and other power tools), industrial paint workshops, water treatment plants, steel, automotive, mining... Structure of polyurethane cables: 1. Conductors: multi-strand ultra-fine twisted oxygen-free copper wires, in accordance with CDE0295 CLASS 6 standard 2. Rated voltage: cross-section <0.5mm²: 300/300V; cross-section ≥0.5mm²: 300/500V 3. Insulation: special mixed TPE insulation 4. Test voltage: 2000V 5. Fixed installation: 6×D 6. Mobile installation: when in motion Two, performance technical parameters
In recent years, polyurethane has become increasingly important in the cable industry, as this material exhibits rubber-like mechanical properties at certain temperatures; therefore, wires and cables made from polyurethane materials are called polyurethane cables.
Mechanical characteristics: The insulation material of the cable is generally not subjected to high mechanical stress. On the other hand, sheaths are widely used. This is especially suitable for flexible control and connection cables, which are often pulled over sharp corners and rough surfaces. This may lead to protruding cuts when stretching the cable during flexible use. Compressive stress may also occur due to squeezing and impact from tools and machines.
The most important mechanical properties of PUR polyurethane cables are: 1. High tensile strength 2. High tear resistance 3. Notch resistance 4. Abrasion resistance 5. Alternating bending resistance 6. Impact resistance 7. Flexibility at low temperatures Chemical properties Chemical resistance depends on many factors, such as chemical type, reaction time, temperature, volume, concentration, and of course, the type of polyurethane used. Compared to many other materials (such as rubber or PVC), PUR has better chemical resistance to reactivity.
The outstanding chemical properties of polyurethane cables are: 1. Good resistance to mineral oils 2. Good resistance to alcohol-free gasoline 3. Good resistance when stored in water 4. Good resistance to many solvents Chemical examples: 1. After prolonged exposure to humidity and warmth, polyester-type polyurethane poses a risk of microbial decomposition.
2. After prolonged exposure to warm water or tropical climates, polyester-based polyurethane undergoes chemical reactions. The result is a reduction in mechanical strength.
The polyether-type polyurethane used in Nanyou cables is resistant to microbial degradation; it is also relatively more resistant to hydrolytic degradation.
Note: Under all climatic conditions, polyether-based polyurethane has weather resistance and ozone resistance. However, it may be subject to fading from sunlight, but this does not affect the performance of polyurethane cables.
Applications of polyurethane cables: Used for control equipment, such as machine tools, flow and assembly lines, conveyor systems and production lines, machinery and equipment construction, conveyor technology (such as work platforms and transport systems), the automotive industry, handling and automation technology, iron, steel and chemical industries, (such as drills, angle grinders, and other electric tools), industrial paint shops, water treatment plants, steel, automotive, mining... Structure of polyurethane cables: 1. Conductor: Multi-strand ultra-fine twisted oxygen-free copper wire, meeting CDE0295 CLASS 6 standard 2. Rated voltage: Cross-section <0.5mm²: 300/300V Cross-section ≥0.5mm²: 300/500V 3. Insulation: Special blended TPE insulation 4. Test voltage: 2000V 5. Fixed installation: 6×D 6. Flexible installation: When stroke three, 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).