Inquiry / Contact
igus® inc.

PO BOX 14349

East Providence

RI 02914

+1 800 521 2747
+1 401 438 7270

E4Q/R4Q Cable Carriers–The Latest Generation of Long-Distance e-chains®

E4Q/R4Q is designed to provide the best possible solution for unsupported lengths and long travels. In addition to insights from worldwide applications with the E4.1 series and the resulting optimization, competitive analysis and customer surveys have been conducted to make the energy chain better, more cable-friendly, easier to assemble and operate, and optionally quieter.


  • Tool-free opening and closing.
  • Four stop-dogs for maximum strength in any installation orientation.
  • Less material in places where it has no function for strength.
  • Optional noise dampeners for even quieter operation.
  • Interior separation product range, also for complex division.
  • Notches in the crossbar for secure grip of the separators.
  • For large, unsupported lengths, high fill weights and long travels

Request E4Q/R4Q

Request here:

Part No.Inner heightOuter heightInner widthOuter heightBend radiusWeight 
E4Q. 150.150.058 mm84 mm150 mm184 mm150 mm3.9kg/m Request
R4Q. 150.150.058 mm84 mm150 mm184 mm150 mm4.5kg/m Request
Technical data such as unsupported lengths and maximum travel lengths have not yet been fully determined.

E4Q/R4Q system


Optional noise dampening – new concealed system for noise reduction. Can be retrofitted any time. Rubber elements attached to the horizontal stop-dogs additionally dampen the impact noise of the already very quiet e-chains.


Vertical and horizontal stop-dogs –  the vertical stop-dogs provide extra rigidity and allow large unsupported lengths. The horizontally arranged stop-dogs, on the other hand, are particularly important if the e-chain needs a certain degree of flexibility and durability in areas with excessive bending, for example, over long travels.


Crossbars (e-chain)/lid (e-tube) – the e-chain and e-tube can be opened and closed without any tools at all. Crossbars and lids/shelves lock in the side section for even greater holding strength. The e-chain/e-tube can be filled in considerably less time.


Save weight – Due to new findings, material has been left out where it has no function with regard to the load on the e-chain . This has happened both inside, between the stop-dogs, as well as outside. In the process, nature-inspired rounded shapes were used for the design.

Application Assistance

For further questions or product information, please contact:

Dan Thompson

Product Manager


Customer Service:

Monday to Friday from 8 am - 8 pm