Solution
And the first request to igus didn't dispel the doubts. There was no guaranteed service life for the parameters under which the cables were to be used.
The reason for this was the small bend radii of the cables in the servo axes, which are sometimes up to 50 percent smaller than the nominal value specified in the catalogue. But igus suggested a customised test programme to IMA Klessmann. In this way, the hybrid cables were tested and examined according to the specification of the drive manufacturer and the Hyperface DSL bus element with over 4 million strokes in the IMA-specific bend radii. Then they were handed over to IMA for a practical test. After successful testing and application, nothing more stood in the way of the series launch.
IMA finally decided on the PVC model of the
chainflex hybrid cable. Particularly in high-speed applications, the majority of machine builders use cables with PUR jackets. However, IMA has already had good experience with PVC in the past. For example, the company also uses PVC jackets for other cables. They are abrasion-resistant and highly durable and fail-safe even in highly dynamic applications.
For guiding the cables, IMA Klessmann also resorts to the igus range and uses
ready-to-install readychain systems. In doing so, open energy chains are used, which repel wood dust. This allows customers to rely on safe systems from a single source, where the components have been harmonised by the decade-long development programmes in the igus test laboratory.