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Scara cable solution

igus has developed the e-rib to safely guide cables guided by corrugated hose. In combination with the reinforcements at both ends and the sag of the corrugated hose as well as the rotary unions, this solution is ideally suited for high-speed SCARA applications.
The e-rib fills the joints of the corrugated hose to stabilise it in such a way that it can only move in one direction. The corrugated hose has an unsupported length due to the lateral guide elements. As a retrofit, the e-rib allows an upgrade of existing applications in just a few steps. e-rib is independent of the hose manufacturer. At first we are offering this solution in the nominal width of 29mm.


Autumn News 2020

Matthias Meyer presents the Scara cable solution

  • The energy supply for Scara robots
  • Individually adaptable for different Scara models
  • Includes the energy supply system from axis 1 to the ball screw
  • Currently the nominal width of the Scara cable solution (inside) is available with 29mm
  • Nominal widths 23mm and 36mm are being planned
  • Spare parts supply is guaranteed by the ordering of individual parts

Request Scara cable solution
Tech up

Tech up

  • Modular system, easy to retrofit
  • Can be delivered as harnessed system
  • Custom design for easy adjustment to different SCARA types
  • Safe guidance of cables and hoses

Cost down

Cost down

  • Simple maintenance
  • High running performance
  • All components are individually replaceable
  • Less downtime



  • Since 2016, 50 EPSON SCARA robots have been in continuous operation at a German motor vehicle manufacturer
  • More than 500,000 cycles have been tested in the igus® test laboratory between August 20th and October 1st 2020



  • Have your e-rib recycled
    as part of the igus chainge recycling programme at the end of its life cycle. Irrespective of the manufacturer. You can receive a chainge recycling programme voucher
  • Lubrication-free xiros® polymer bearings installed

What is behind the Scara cable solution?

Corrugated tube dynamically reinforced

The reinforcement for existing corrugated tube systems. The e-rib is clipped onto a corrugated hose. The new sizes are independent of the hose manufacturer. The e-rib stabilises the corrugated hose so that it can only move in one direction. With its lateral guide elements, the corrugated hose requires no support along its length due to the e-rib.
Initially we offer the nominal width 29 for the Scara robots. 


Customer application of a Scara cable solution

in continuous operation for over 3.5 years (2020)

At a German motor vehicle manufacturer, 50 Epson Scara robots have been in continuous operation with our Scara solution since 2016 and have so far achieved a cycle count of over 17 million.  

  • Largely maintenance-free
  • Significant increase of the system service life
  • Can be retrofitted with little effort

request Scara cable solution here

Scara cable solution in the igus test laboratory

Part 1

Here you can see our test setup for the product expansion.
This video was recorded on 27.08.2020  
It shows the new rotary unions still as 3D printed parts, which together with the e-rib form the Scara cable solution.

Scara cable solution in the igus test laboratory

Part 2

This video was recorded in the igus test lab on 25/11/2020 and shows the functionality of the Scara cable solution even more clearly.
Rotary linkage + e-rib ensure optimum unity.  

Scara cable solution rotary linkages

Scara end pieces

Application examples

e-rib application

Horizontal support

e-rib application, vertical

Vertical support

Potential application areas

e-loop in the offshore industry

Automotive production

e-loop in the oil and gas industry


e-loop in shore-power supply


Scara cable solutions questions and answers

Which sizes are currently available?
- inner hose diameter of 29mm
How does the Scara cable solution absorb forces?
- The e-rib gives the corrugated hose stability
- End connection reinforcement at both ends of the system
- Intermediate connectors at the tip of the sag

Is the whole thing also available as igus readychain?
- Please contact us directly via the enquiry button


Request Scara cable solution as readychain

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