A polyurethane drag chain cable is a cable with a polyurethane outer sheath. Polyurethane is highly resistant to wear, oil, and water. Below is an introduction to polyurethane drag chain cables, including their specifications, performance, and applications.
1. What is a polyurethane drag chain cable?
The difference between polyurethane drag chain cables and ordinary drag chain cables is that the outer sheath is made of polyurethane, making them more resistant to bending, folding, wear, and oil, making them ideal for mobile applications with continuous reciprocating motion. Polyurethane drag chain cable components:
Conductor: Fine oxygen-free bare copper wire, stranded;
Insulation: High-strength imported PE material;
Inner sheath: High-strength special composite sheath material;
Shield: Anti-oxidation tinned copper braided shield with a braid density of ≥85% to effectively prevent internal and external interference;
Outer sheath: High-strength imported PUR material;
Sheath colors: Gray, black, orange, green;
Rated voltage: <0.5mm, 300/300V; ≥0.5mm, 300/500V;
Operating temperature range: Fixed installation: -40°C to 80°C; Mobile use: 0°C to 70°C;
Minimum bending radius: Fixed installation: 5 x cable outer diameter; Mobile use: 7.5 x cable outer diameter;
Polyurethane drag chain cables are suitable for a variety of automated machinery and equipment, including CNC machine tools, vertical lathes, glass processing machinery, woodworking machinery, robotic manipulators, cutting machines, engraving machines, and door and window machinery.
II. Characteristics of Polyurethane Drag Chain Cables
1. Abrasion Resistance: Polyurethane is highly resistant to abrasion, making it an excellent alternative to nitrile-sheathed drag chain cables for use in highly abrasive environments.
2. Oil Resistance: For cables exposed to or immersed in oil, especially corrosive oils, polyurethane-sheathed drag chain cables meet these requirements and withstand prolonged movement and flexing in such environments, offering performance unmatched by conventional nitrile-sheathed cables.
3. Waterproofness: For highly flexible cables exposed to or immersed in water, such as those used in offshore underwater equipment, polyurethane-sheathed cables are specifically designed for seawater resistance, offering excellent water resistance and hydrolysis resistance.
4. Temperature Range: Polyurethane drag chain cables offer transient high-temperature resistance up to 105°C and a long-term operating temperature range of -40°C to +90°C, demonstrating excellent high and low-temperature performance.
5. Compared to nitrile elastomers, the polyurethane sheath offers superior mechanical resistance, allowing it to flex with the equipment's cyclical movement, making it suitable for applications and environments with higher speeds and accelerations.
3. Polyurethane Drag Chain Cable Models and Specifications
Polyurethane drag chain cable models are based on general drag chain cable models, but to distinguish them, they are suffixed with "PUR" (polyurethane). For example:
TRVV-PUR: Copper core, polyurethane sheathed drag chain cable, generally available in nearly 60 sizes, including (2-14)*(4-6)mm² and (2-61)*(0.75-2.5)mm².
TRVVP-PUR: Copper core, polyurethane sheathed, soft sheathed, tinned copper wire braided shielded drag chain cable. Drag chain cables are available in nearly 50 sizes (7-61) x (0.75-1.5) mm².
TRVVSP-PUR: Copper core, polyurethane sheathed, twisted-pair, shielded drag chain cables are available in over 60 sizes (4-61) x (0.5-2.5) mm² and (4-37) x (1.5-2.5) mm².
RVVYP-PUR: Copper core, polyurethane special sheathed, oil-resistant, shielded drag chain cables are available in over 60 sizes (7-61) x (0.75-1.5) mm².
