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Rotating energy supply for all media in a complete system

Standards can be adapted flexibly and efficiently

Product experts in conversation

Engineering service

Looking for an individual rotating energy supply? Use our know-how for your solution. Our experts would be happy to advise you.
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White paper on rotating energy supply

Free design tips

Ten valuable tips for the correct guide trough for circular modules, should you want to design it yourself.
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Reverse Bend Radius configurator

Online configurator

Configurator for circular movement: simply configure the energy chain to suit the application.
Go to the configurator

The new standard for circular movements

Teaser SRM

SRM: Steel Rotation Module

Complete set with rotation angle: up to 380°
To the complete set
Teaser SRM-L

SRM-L: Steel Rotation Module Light

New development with up to 40% less weight
Make a product enquiry
Polymer Rotation Module

PRM: Polymer Rotation Module

Complete set with rotation angle: up to 360°
To the complete set

Special solutions for special applications

Static rotating energy supply

Static rotating energy supply, one-piece

Maximum rotation angle 400°
For static rotating energy supply
Teaser SRM-V

SRM-V: Steel Rotation Module

Vertical installation up to 2,000mm outer diameter
Make a product enquiry
Teaser PRM-V

PRM-V: Polymer Rotation Module Vertical

Vertical installation up to 500mm outer diameter
Make a product enquiry

Highlights of the rotating energy supply

RBR application

Moving energy made easy

For several years, igus® has been developing customer-specific systems for circular movements with energy chains, referred to as rotating energy supplies. They can be used to supply energy, data, and liquids to rotating assemblies in such applications as machine tools, robotics and bucket wheel excavators.
The igus® standard rotary modules consist of two circular guide elements. One part of the guide trough is attached to the stationary part of the system and the other to the rotating part. Because the rotary modules can be turned by both their inner or outer parts, the fixed end can be chosen freely for the e-chain®. In the main, e-chains® from the E4.1 series are used for "simple" applications and energy chains from the E2.1 and E2/000 series also used for rotary modules.

The standard for circular motion

  • Rotation angles up to 540° (on one level)
  • Rotation angles of 900° are possible with the igus® multi-rotation modules
  • Maximum rotation angle in minimal installation space
  • Rotation speed of up to 360°/s
  • Lighter and more compact than static guide troughs
  • Minimum displacement forces and maximum service life
  • Modular construction with standardised mounting options
  • Integrated strain relief and cable guidance directly in the guide trough
  • Determine rotating energy supply quickly and reliably with the CAD configurator

What does "RBR" mean?

"RBR" means Reverse Bend Radius and means that the e-chain® can bend in two directions. Designs with "RBR" can be manufactured for most igus® e-chains®. The "RBR" does not have to be identical to the standard "BR" (bend radius) of the energy chain. A wide range of circular movements can be achieved with the RBR option. Rotation angles of up to 900° have been achieved.
Tip:Find a solution for your current design quickly and easily by submitting a request about your specific application to your igus® specialist for rotating energy supplies. We will provide you with the correct sizing, simplified 3D model and an offer with prices and delivery times.

What does "MRM" mean?

"MRM" stands for multi-rotation module and is effectively a multi-level RBR system. With a simple igus® rotation module (such as a standard RBR energy chain), a rotation angle of up to 540° can be achieved, depending on the energy chain size. Each additional module extends the angle of rotation by up to 360°. A simple stop-dog system carries the system's upper layer according to a defined angle of rotation. This technology means that only one control system is required for both layers.
MRM module with two levels

Your options for igus® guide troughs

Depending on the application in question, the e-chains® glide on surfaces made of plastic, stainless steel or galvanised steel and are guided by special channels in a predefined circular movement.

Rotating energy supply with brackets

With consoles

Flexible attachment to your structure
Rotating energy supply with cover

With roof

Weather and UV protection are easily integrated
Rotating energy supply with integrated guide

Integrated guidance

Controlled, low-wear guidance of the e-chain® within your application

Rotating energy supply with tube troughs

Tube trough

Open structure providing protection from dirt with additional weight-reducing features

Space-saving with reverse e-chains®

Reverse e-chains®

Space-saving: symmetrical separation filling and the system

Suitable products and tools

chainflex cables for Reverse Bend Radius applications

Fail-safe cables for rotary guide systems

Largest range with 1,354 cables types for data, bus and hybrid systems, control system and drive. Specially developed for moving application in e-chains®.
Rotating energy supply systems for various applications

Energy chains for circular and spiral movements

With the help of our configurator for circular movement in the CAD area, you can configure an energy chain in advance suitable for your application data.


I look forward to answering your questions

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Saturdays from 8 am- 12 pm.



The terms "Apiro", "AutoChain", "CFRIP", "chainflex", "chainge", "chains for cranes", "ConProtect", "cradle-chain", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "dryway", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-loop", "energy chain", "energy chain systems", "enjoyneering", "e-skin", "e-spool", "fixflex", "flizz", "i.Cee", "ibow", "igear", "iglidur", "igubal", "igumid", "igus", "igus improves what moves", "igus:bike", "igusGO", "igutex", "iguverse", "iguversum", "kineKIT", "kopla", "manus", "motion plastics", "motion polymers", "motionary", "plastics for longer life", "print2mold", "Rawbot", "RBTX", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" and "yes" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries. This is a non-exhaustive list of trademarks (e.g. pending trademark applications or registered trademarks) of igus GmbH or affiliated companies of igus in Germany, the European Union, the USA and/or other countries or jurisdictions.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH