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igus® inc.

PO BOX 14349

East Providence

RI 02914

+1 800 521 2747
+1 401 438 7270

Modular e-loop energy chain system

For the cable guidance in top drive systems of drilling rigs, manufacturers and operators have so far been using so-called "service loops". However, these often create problems. The cables have no guidance, no defined bend radius, can slip in the service loop and in the worst case, break. In extremely windy conditions, the freely hanging service loop can get caught in the mast or on the sensors as well as the lighting system and be torn off. Replacement of the entire hose package is necessary.

To guide cables securely in hanging applications, igus has developed a new energy chain with the e-loop. As an alternative to the service loop, the e-loop combines the advantages of a polymer energy chain with those of a Dyneema rope that possesses high tensile strength. Ideal for three-dimensional movements. The tensile forces are absorbed by the rope and passed through the mounting brackets into the support structure. As a result, the cables are completely free of strain. The modular e-loop energy chain system made of high-performance plastics ensures a defined bend radius of the cables and withstands vibrations and shocks.



  • Modular e-loop system can open & close when necessary
  • Everything individually replaceable
  • Simple maintenance
  • Cable-friendly two-chamber interior separation design
  • Enforces minimum bend radius
  • Protects against impact due to robust PU outer body
  • Offers operational reliability due to secondary locking tension of all bolted connections
  • Special mounting brackets for quick, easy installation
  • Dirt and weather-resistant
  • Maximum cable diameter up to 36mm (radius 500mm)
  • 36 month chainflex® guarantee

Request e-loop:

Is your size not listed?  More sizes are available on request below:

Part No.Inner ØOuter ØBend radiusWeight 
ELP.220.01150 mm220 mm380 mm≈18kg/m Request
ELP. 300.01230 mm300 mm500 mm≈22kg/m Request

Request a project now

Shop chainflex® cables for drilling rigs:

Motor cable (single-core)

Single-core cable chainflex CF310.UL  
chainflex CF310.UL

Shop motor cable

Control cable

Single-core cable chainflex CF310.UL  
chainflex CF9.UL

  • For extremely heavy-duty applications
  • UL and DNV-GL-certified
  • Flame-retardant and oil-resistant
  • High variety of cores and conductor nominal cross sections
  • Tried and tested in drilling rigs

Shop control cable

Data cable

Data cable chainflex CF112  
chainflex CF112

  • For extremely heavy-duty applications
  • UL and DNV-GL-certified
  • Flame-retardant oil and mud-resistant
  • Pair-shielded
  • New cross sections for top drive systems available [(8x(2x1.5)C)C]

Shop data cable

Load and break test of the e-loop

igus performs application-specific tests at their in-house test laboratory for a long-lasting energy supply.

Load test of the e-loop
The e-loop was tested under extreme weather conditions and vibrations.
Results: High vibrations, side impacts and bumps do not impact the e-loop. The modular e-loop energy chain system ensures secure cable guidance on the top drive.


Break test of the e-loop
Test setup: the e-loop was dropped from a height of 10m onto a safe.
Result: The test proved the e-loop to be resistant to shocks and shatterproof.


Application Assistance

For further questions or product information, please contact:

Dan Thompson

Product Manager


Customer Service:

Monday to Friday from 8 am - 8 pm