Twistable robot cables

When customers ask about robotic cables, they often mean cables that are designed to be soft yet robust. Robots are not the only application in which these properties might be desirable. One thing these applications always have in common is that they are required to perform 3D movement in space. Torsional moment usually acts on these cables in the application. It is therefore better to speak of twistable cables. In this segment, there is a large product range called the CFROBOT families available from stock, which has been tested for torsion angles of up to +/- 360 degrees per metre. These cables are available in different assemblies, depending on the electrical requirements. Of course, shielded variants are also available, and the assemblies in such variants have a different design.

Shield and filling material
The structure of the robot cable is significantly different compared to the cables for linear applications. Normally, our cables have a very firm and stable internal structure to withstand the special conditions in linear chain applications. In a torsion application, however, there are completely different arrangements. These cables have a very soft structure to compensate for the torsional movements. The difference is particularly noticeable in the screen and the large number of fillers. We have a different screen concept for robot cables. Here we use a screen wrap and not a screen mesh, because with a winding the screen can adapt to the torsional movements and open and close. We have also built many fillers into the cable. These have the function of a shock absorber and cushion the torsional movement within the cable.

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