PUR Jackets: Industry Standard for Robot Torsion Cables
PUR (Polyurethane) is the industry standard for robot torsion cable jackets due to its exceptional properties .
PUR Advantages:
High abrasion resistance: Withstands rough handling in factory environments
Excellent oil resistance: Performs well in oil-soaked machine cells
Notch resistance: Resists damage from sharp edges and impacts
Tear resistance: Maintains integrity under mechanical stress
Cold flexibility: Remains flexible down to -40°C
Hydrolysis-resistant variants available: Prevents swelling and flaking in humid environments
Material Comparison :
PUR: Heavy-duty flexing, weld-spark resistance, hydrolysis-stabilized variants
TPE: Clean-room suitable, low-temperature flexibility, lower cut resistance
PVC: Low cost, only suitable for light-load applications, avoid for multi-shift welding robots
Jacket Testing: Quality PUR jackets must pass hot spark tests with no burn-through, particularly for welding applications where weld spatter is common .
