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TRX revolutionises 3D movement

Telescopic triflex® TRX - space-saving installation with a retraction length of up to 36%

Winner: iF Design Award 2022 and Red Dot Design Award 2022

The telescopic triflex® R TRX combines the triflex® R energy chain and a retraction system in one. The combination enables a space-saving installation with compensation of up to 36% of the e-chain's length. The length compensation also prevents loop formation at the robot. The round shape of the 'easy' design is highly resilient and makes it possible to insert and remove harnessed cables easily.

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Telescopic and twistable combined in
one e-chain

  • The TRX complements the functions of the triflex R series and now also makes them telescopic
  • Due to their patented design, the chain links of the TRX allow a length compensation of up to 36% to one another without losing the connection or the torsional ability.
  • The rubber band inside the TRX retracts the links back to their starting point and the retraction force can be adjusted via the rubber band 
  • Weight reduction of up to 83% compared to a solution with a retraction system (RSP)
  • The TRX design study is currently 100% compatible with the TRE.60.087.0.B, other chain sizes will follow.

Receive updates on the design study TRX

Experience the TRX from completely new angles

Start animation with the Play button and change the viewing angle with the mouse

Tech up

Tech up

  • Up to 36% length compensation possible
  • Minimises loop formation
  • Space-saving design
  • Compatible with the triflex® R portfolio of the TRE range
  • Easy to retrofit

Cost down

Cost down

  • Minimisation of bought-in parts
  • Shorter cable lengths
  • All components are individually replaceable
  • Minimisation of installation times thanks to the 'easy' design



The telescopic TRX is being tested for different characteristics in current tests in the igus® test laboratory.



  • Considerably less material and fewer parts are needed compared to conventional retraction systems, as a result of which resources are conserved.
  • Have your energy chain recycled in the igus chainge recycling program at the end of its life cycle. Irrespective of the manufacturer. You can receive a chainge Recycling Program voucher
  • igus supports the circular economy of plastics and is investing in chemical recycling.

Cable guidance in the TRX

As cables or hoses cannot be elongated to the same extent as the e-chain, they are placed in the TRX according to a specific principle. (see picture on the right) In addition, the cables and hoses are fastened in place in the middle of the TRX so that they do not leave their position when the chain is pulled. 
Thanks to the special arrangement of the cables/hoses, as well as the additional tension relief system in the centre of the TRX, the cables/hoses can cope with the length compensation of the e-chain without any problems. 
Upper chain: cables/hoses wound onto a reel as much as possible
Middle chain: cables/hoses half unwound from reel
Lower chain: cables/hoses are completely elongated in the TRX

Transparent TRX with cables

Matthias Meyer explains the TRX on the igus trade show stand

  • 3D movement as with all triflex R e-chains
  • Torsion resistance as with all triflex R e-chains
  • Can be lengthened and shortened, like all triflex R e-chains 
  • Compatible with TRE and TRC in the relevant size
  • The key is that the TRX can also telescope

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The proof

The triflex® R TRX in the igus test laboratory

The TRX is in its final testing phase in our in-house test laboratory at the moment. The picture shows the TRE.60.B size, in which the TRX will be available first. 
The first 7-8 chain links (starting from axis 6) are normal links of TRE.60.087.0.B. The rest of the e-chain is made of the new telescopic TRX e-chain.

Would you like to see it live? Just make a virtual appointment for our digital trade show stand.  

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Suitable products for the TRX

The universal installation kit is ideal for attaching the TRX. The TRX can be fixed in place with the supplied mounting brackets in different positions and can be supplemented with the suitable triflex R chain up to axis 6.  

Universal assembly kit
Universal assembly set_disassembled Including variably installable mounting plate for installing directly on the robot (dimension A, B, C)

Further products and options for the TRX

chainflex robot cables

chainflex® robot cables

Cables specially for torsion

TRX as readychain

readychain® ready-to-connect robot cables

Let us fill the chain for you

readycable robot cables

readycable® robot cables

Everything ready to go with the right connectors


I look forward to answering 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.