There have been reliability problems with the use of the energy chain type "B15" (15.050.048..), prompting the sourcing of a more rigid structural type. The following design points have been taken into account
The 2500 type chain from Igus is the correct system for our application. It is a standard type and generally stocked
Using the 2500.03 type from this range is has a taller yet narrower cross section, but is ample for the application
A bend radius of 100mm is specified by Beckhoff for the cable, but the decision has been made to reduce down to 55mm. This decision is based on the success / longevity of upgrades done in the field with 55mm radius and the fact that the 100mm bend radius will not fit in all applications. Using the 55mm bend radius allows a "one size fits all" for all Stuga applications
The chain should be "Openable Outside" to enable a drag-style application on the inner faces
Cable separators should be added every 10 links to help keep the cables separate and the Beckhoff cable as central as possible
Cable tie points on the brackets are 100% essential. These "combs" are a clip on addition
A rigid chain, coupled with a smaller bend radius removes the need for the "anti-rise" trays and the vertical members holding this assembly in the air
The Beckhoff cable should be untwisted before feeding into the energy chain