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chainflex® cable guarantee
igus 4-year chainflex cable guarantee and service life calculator based on 2 billion test cycles per year.
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
- Bend radius
Your guarantee covers up to four years or ten million double strokes (for cables in the chainflex® 800 family, up to five million double strokes, and for high‑end cables, up to 40 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. These factors are described in the current catalogue, the data sheets, and the service life calculator.
It's simple:
An example: Guaranteed service life for chainflex® CF9
| 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 chart, you can find the technical parameters of the chainflex® CF9 control cable. If the cable is operated in accordance with the operating conditions, a guaranteed service life of 5, 7.5 or 10 million double strokes is applicable depending on the application. The service life itself can even be significantly higher.
In your application, you use a cable with a diameter of 12mm in an energy chain with a radius of 100mm. This results in a bending factor of 8.3 (100mm/12mm). To receive a statement regarding the durability, you require the information from the technical framework conditions (temperature and number of double strokes). With an assumed temperature range of -25/+90°C) with 8xd, the effective bending factor is above the minimum limit of 7. 10 million double strokes are guaranteed! With higher or lower temperature, the necessary factor for this guarantee level would be 8.5. This means that the number of guaranteed double strokes is reduced to 7.5 million.
These statements provide reliability and planning safety for your entire plant
chainflex® works - guaranteed and certified!
From the first igus® cable in 1989 to today’s UL‑verified 4‑year guarantee, discover how decades of rigorous testing shaped the industry’s most reliable moving cables.
Frequently asked questions
The chainflex® guarantee is an industry‑unique assurance that igus® cables will reach their calculated service life, defined in double strokes, for up to 4 years from the delivery date, whichever comes first. It is based on more than 30 years of testing and billions of cycles verified under real‑world conditions.
igus® offers this guarantee to give customers planning safety, functional reliability, and cost reduction through predictable cable lifetimes. Thanks to the world’s largest cable test laboratory, we can confidently state service life expectations backed by billions of test cycles and UL‑verified methods.
The guarantee applies when:
- The cable is used according to the parameters defined in the igus® service life calculator (bend radius, temperature, travel, movement type, etc.).
- The cable fails before the guaranteed number of double strokes or before 4 years, under normal use.
- A manufacturing or material defect causes premature wear.
The guarantee does not apply in cases of mechanical damage, incorrect installation, or misuse.
You can generate a certificate by:
- Selecting your cable in the igus® chainflex® service life calculator.
- Entering your application details (bend radius, temperature, travel, etc.).
- Clicking “Request up to 4 years guarantee certificate” to receive it by email.
The guarantee covers all igus® chainflex® cables that can be selected in the service life calculator, including:
- Control cables
- Motor and servo cables
- Bus and data cables
- Encoder cables
- Fibre‑optic and robotic cables
- Special‑purpose cables
Surplus stock lengths of these cable types also qualify.
The guarantee lasts for up to 4 years from delivery, or until the cable reaches its calculated service life, whichever occurs first. Replacement under guarantee does not extend the guarantee period.
In addition to chainflex® cables, igus® also offers a 36‑month guarantee on its e‑chain® systems.
Customers gain:
- Planning certainty thanks to precise life‑expectancy calculations.
- Reduced downtime from predictable maintenance schedules.
- Lower costs through longer cable life and fewer replacements.
- Sustainability benefits, as longer‑lasting cables reduce CO₂ emissions from production and waste.
- Proof of performance supported by UL‑verified testing and billions of cycles in the world’s largest cable test lab.
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