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CRM rotary module

Rotary module – rotation angle of up to 6480 °

The new CRM rotary module is lighter and more compact than static guide troughs. It allows a rotation angle of up to 6480 ° and requires minimal installation space. Various types of cable (power, signal, FOC, pneumatic, oils) can be guided. Rotary unions that are inflexible and susceptible to faults are eliminated, allowing a simple, ready-to-install unit.
Potential application areas:

  • General machine and plant engineering
  • Production plants/Material Handling
  • Machine tools
  • Industrial robots
  • Medical technology
  • Wind turbines
  • Rides/Theme Park
  • Satellite-telescopes/antennas

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Tech up

Tech up

  • No slip ring: works with every kind of service
    (electricity, data, air or fluids)
  • Can also be equipped with corrugated tubes
  • Small installation space, very low profile
  • Rotation angle up to 6,480° (depending on system)
  • Resistant to water splashes due to uninterrupted

Cost down

Cost down

  • Cost-effective in case of repair (replacement of individual
    components possible)
  • Adaptable to technological development due to
    simple replacement of the used cable



  • No additional copper components
    in the system (apart from copper in cable). Parts are reusable
  • Less raw material required thanks to the option of partial repair  instead of complete replacement
  • Have your energy chain recycled as part of the igus "chainge recycling programme" at the end
    of its life cycle. Irrespective of the manufacturer. You can receive a voucher: chainge programme
  • igus supports the circular economy of plastics and invests in chemical recycling

Technical data

Three sizes: dependent on cable diameter

Part No.Cable diameterAngle of rotationNecessary rotary module cable length
CRM.250.08.015mm - 8mm6480°4,5m
CRM.250.11.018mm - 11mm4320°3,3m
CRM.250.15.0111mm - 15mm2160°2,4m

Total length: rotary module cable length + FE projection (connection source)
Example: CRM.250.11.01 ➔ Total cable length: 3.3m + 5m (FE projection) = 8.3 metres

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Test: clearance height

Test: CRM rotary module and TB12 twisterband clearance height

In its test laboratory, which is the largest in the industry, igus compared the CRM rotary module and twisterband. The two series were evaluated with regard to their clearance height given the same rotation angle (6480°)
The results showed that, given the same rotation angle (6480 ), the CRM rotary module requires a lower clearance height that the twisterband. The rotary module's clearance height is approx. 99mm, while the TB12 twisterband's is approx. 260 mm.

Application example with rotary modules

Rotary modules

Other rotary modules

Various systems for rotary and spiral movements can be selected, and properties such as modularity and versatility and a high degree of stability ensure dependability.  

Rotary module CAD models

3D CAD for rotary modules

Quickly configure rotary modules.  Download CAD models for a wide variety of systems.

e-chain news 2020

Overview of e-chain news 2020

Discover here further e-chains novelties 2020 for different applications.

You might also be interested in this

10 tips for a long-lived rotating energy supply

Ten valuable trips for the correct guide trough for circular modules, should you want to design them yourself. Avoid mistakes that reduce the service life of your plant or might even cause downtime.
From the contents:
- Plan guide sheets correctly
- Tips on laying cables
- Limit maximum rotation angle
- Generate CAD data for troughs and entire modules
Download 10 tips now free of charge. We will be happy to assist you in person at any time.

Download design tips now
10 Designtips for rotary energy supply


I would be happy to answer your questions

Shipping and consultation

In person:

Monday to Friday from 7 am - 8 pm.
Saturdays from 8 am- 12 pm.



The terms "igus", "Apiro", "CFRIP", "chainflex", "conprotect", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "easy chain", "e-chain", "e-chain systems", "e-loop", "e-ketten", "e-kettensysteme", "e-spool", "e-skin", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "print2mold", "readycable", "readychain", "ReBeL", "robolink", "speedigus", "tribofilament", "triflex", "xirodur" and "xiros" are legally protected trademarks of the igus® GmbH/Cologne in the Federal Republic of Germany, and, where applicable, in some foreign countries. 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, Bosh Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mentioned on this website. The products offered by igus® are those of igus® GmbH.