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Joint and dress pack torsion cables

Cables for the axes that twist rather than bend: the wrist of a six-axis arm, a rotating tool flange, a hollow joint in a cobot. Torsion is a different load from drag-chain bending and needs a different construction, which is confirmed against the motion you describe rather than assumed.

±180°/m · 5M cycles · PUR
Typical construction

How it is usually built

  • Torsion-rated cores laid up with a long lay length and a sliding separator, so the bundle twists without the cores working against each other
  • Braid screen with a torsion-tolerant angle, or a foil-free construction where the application allows
  • PUR jacket, abrasion and oil resistant, with a low-friction surface for dress pack hoses
  • Cut to the routing length, terminated at both ends, labelled per axis

Ratings are the cable maker's for the construction chosen; the construction, the test scope and the documentation are confirmed in your quotation.

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