For several years igus has been developing customised systems for circular movements with energy chains, so-called 'rotating modules'. As a result, rotating assemblies can be supplied with energy, for example, on machine tools, robots up to bucket wheel excavators.
In order to provide solutions for such applications even more quickly to customers, the motion plastics specialist has now developed a standard range of rotary modules and offers a complete installation-friendly kit system for fast rotating applications.
"RBR" is "reverse bend radius" and means that the e-chain® can bend in two directions. Designs with RBR can be manufactured for many igus® e-chains®. The RBR is not necessarily identical to the normal bend radius (BR) of an e-chain®. Most rotary motions can be achieved with the RBR option. Angles of rotation up to 900° have been realized. Please consult igus® for your particular application.
For rotary modules with high speeds and many motion cycles a two-tiered guide channel is used. Using the divided guide trough minimises the relative movements of cables and the energy chain. This increases the service life of the system thanks to minimised levels of friction for the chain and cables.
RBR trough with inner section rotating
RBR trough with outer section rotating
In addition to our standard rotary modules, we also offer static rotary modules.
These rotary modules consist of a static guide trough. The fixed end of the e-chain® is attached to the guide trough and the moving end to the rotating part of the machine. The e-chains® from the E4.1 series are used for the rotary modules. Static rotary modules are ideally suited for easy installation in narrow spaces.
The e-chains® slide mostly on surfaces made of plastic, stainless steel or steel and are guided through baffle plates into a rotary movement.
Flexible mounting to the customer structure
Weather and UV protection are easily integrated
Open, weight-reducing structure that provides protection from coarse dirt
Symmetrical interior separation of the system and the filling
rotation angle: 470°
chainflex® cable: CF27, CF11, CF14, CF Koax, CFLG
Angle of rotation: 340° m
Acceleration: 0,4 m/s²
chainflex®: CF300, CF34, CF9, CFLG
Guide trough: stainless steel tube trough, 1.4301
Location of use: the North Sea
rotation angle: 900°
e-chain®: E18.104.22.168/6000.0, E22.214.171.1240.6000.0
chainflex® cable: CF300, CF34, CF10 CFPE, CFLG, CFBUS
Circular movements can be implemented with several solutions from the igus® e-chains® range. The twisterchain product line offers the biggest selection for rotary movements. twisterchain solutions are particularly recommended for spacerestricted applications such as articulated robots, revolving tables, etc.
Cost-effective and low wear/maintenance circular motions can be implemented with the igus® twisterband in confined spaces, while reliably guiding energy, data and media.
The video opposite shows an application that was solved with standard e-chains®. Such solutions are possible if a great deal of space is available and if the angles of rotation are limited to a maximum of 450°. All igus® e-chains® / E-Tubes and Chainflex® cables are appropriate for this situation.
iglidur® PRT slewing ring and e-chain® from the E2 Series in "RBR" design