Cables for cable carriers: structure and selection

At a glance

Type
Guide
Industry
Mechanical engineering

Cables in cable carriers are bent with every stroke, countless times over their service life. A normal cable breaks early. Continuous-flex cables are built exactly for this.

A plastic cable carrier chain filled with flexible orange and grey cables on a machine axis
AI-generated illustration

What makes a continuous-flex cable

Fine-stranded conductors, short lay lengths in stranding and a pressure-resistant sheath keep the cable from twisting in the chain and the cores from breaking. PUR sheaths are abrasion-resistant and oil-resistant, PVC is cheaper and suits simple applications.

Makers state a minimum bending radius as a multiple of the outer diameter. It must match the radius of the cable carrier. Further ratings are travel distance, speed and acceleration, number of cores and cross-sections, and a screen for motor and signal cables.

What a request for continuous-flex cables should contain

  • number of cores, cross-section and screen
  • bending radius of the cable carrier
  • travel distance and speed
  • environment: oil, coolant, temperature
  • length per cable and number

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