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We issue a 4-year guarantee on our cables with confidence, as we are able to make reliable predictions about their service life backed by over 30 years of experience in our 3,800m² test laboratory and 700 concurrently running experiments.
The chainflex guarantee assumes the operating conditions are applicable for the respective cable group. These conditions consist of parameters such as temperature, movement type, torsion, media influence, and bend radius. The guarantee is valid for up to 4 years or 100 million double strokes, whichever comes first. The number of double strokes covered by the guarantee depends on the type of installation and the cable quality. This is described in the current catalogue, in the data sheets and in the service life calculator.
| Double strokes* | 5 million | 7.5 million | 10 million |
|---|---|---|---|
| Temperature from/to [°C] | Minimum bend radius [Faktor x d] | Minimum bend radius [Faktor x d] | Minimum bend radius [Faktor x d] |
| -35°C/-15°C | 6.8 | 7.5 | 8.5 |
| -25/+90 | 5 | 6 | 7 |
| +90/+100 | 6.8 | 7.5 | 8.5 |
* Higher number of double strokes? Calculate service life online
In this table you will find the technical parameters of the chainflex CF9 control cable. If the cable is used in accordance with the specified operating conditions, a user-related service life guarantee of 5, 7.5 or 10 million double strokes applies. The service life itself can be significantly longer.
Let's assume you are using a cable with a diameter of 12mm in an energy chain with a radius of 100mm. This results in a bend factor of 8.3 (100mm/12 mm). To get an indication of the durability, you need the information from the technical framework conditions (temperature and number of double strokes). Assuming a temperature range of -25°C/+90°C) with 8xd, the effective bend factor is above the minimum limit of 7. 10 million double strokes are guaranteed! At higher or lower temperatures, the required factor for this guarantee level would be 8.5, reducing the number of double strokes to a guaranteed 7.5 million strokes.
These statements create reliability and planning security for your entire system!

UL verified: chainflex receives highest recognition from world-renowned testing organisation
igus is the first German company to have this promise validated for chainflex cables. In a complex certification process, the US "Underwriters Laboratories" institute confirmed the accuracy of the following text: "igus 4-year chainflex cable guarantee and service life calculator based on 2 billion test cycles per year". This makes the Cologne-based company the first in Europe to have the veracity of an advertising statement confirmed by a testing institution. In future, every chainflex cable that leaves a factory anywhere in the world will be given the UL marketing label with its unique number (B129699) that refers to igus.
A total of 1,044 of the more than 1,350 cables in the portfolio and available from stock already have classic UL approval. This is a prerequisite for smooth system commissioning in the US. Exporting systems to America will therefore be a smooth process. The combination of UL approval and UL marketing label benefits exporting efforts twice over.
These statements create reliability and security for your entire investment process, especially now that they have been confirmed by an external body! Learn more about UL verified here:

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