DSM’s Stanyl® polyamide 46 for chain tensioner slide shoes boosts the low-carbon drive in the auto industry

Royal DSM, the global Life Sciences and Materials Sciences company, launches Stanyl® polyamide46 for automotive chain tensioner slide shoes. Stanyl® 46 lowers the amount of friction in a timing system compared to 66, thus reducing CO2 emissions up to 2 gram CO2 per km and lowering the fuel consumption up to 1%, while at the same time delivering high wear performance.

With the rapid development of China’s automotive industry and the clear focus on sustainability in the 12th five-year plan, OEMs attach great importance to CO2 reduction. At the same time, auto carbon emissions standards are severely reduced by new legislation. Stanyl PA46 is able to reduce remarkably the carbon footprint when used in slide shoes — the main component in chain tensioners - thus helping OEMs to get closer to their CO2 targets.

In passenger cars with a chain driven valve train, chains are used for synchronizing the timing of the movement of the pistons with the timing of the actuation of the inlet and outlet valves. Chain guides in this system provide the appropriate chain tension. By using Stanyl PA46, slide shoes can achieve 25% lower CoF (Coefficient of friction) and reduce CO2 emissions effectively. In addition, Stanyl PA46 meets better the harsh operating conditions of engines of large cars and diesel cars. Stanyl PA46 is also best-in-class in terms of wear performance, with 4-7 higher wear resistance compared to PA66 resulting in solid performance across the engine’s lifetime. As such, Stanyl already plays a major role in highly loaded chain tensioners or tensioners with high curvature.

A motored engine test at Ford indicated that at 90°C, Stanyl PA46 shows 0.45 Nm lower friction torque than PA66 at all rpm, which would be equivalent to up to 2 gram CO2/km.  Stanyl has proven successful for use in timing systems and tensioners in all engines and models from a wide range of major automotive producers.

Ralph Ramaekers, Industry Manager Powertrain of DSM, said, “DSM is committed to sustainable development, seeking the best solution with a lower impact on the environment. The unique advantage of Stanyl PA46 in reducing carbon emissions and effects on the timing system lay-out enables vehicle manufacturers to further reduce the carbon footprint of the car.”

Reader enquiries

DSM Engineering Plastics
Poststraat 1
6130 AA Sittard
Netherlands
+31 46 477 0496
www.dsmep.com

---

Notes for editors

DSM – Bright Science. Brighter Living.™

Royal DSM is a global science-based company active in health, nutrition and materials. By connecting its unique competences in Life Sciences and Materials Sciences DSM is driving economic prosperity, environmental progress and social advances to create sustainable value for all stakeholders simultaneously. DSM delivers innovative solutions that nourish, protect and improve performance in global markets such as food and dietary supplements, personal care, feed, medical devices, automotive, paints, electrical and electronics, life protection, alternative energy and bio-based materials. DSM’s 24,500 employees deliver annual net sales of around €10 billion. The company is listed on NYSE Euronext. More information can be found at www.dsm.com.

DSM began trading with China in 1963 and established its first China sales office and first manufacturing facility in early 1990s. The company currently has 42 affiliates in China including 25 manufacturing sites and employs about 3,400 people. DSM China regional headquarters and China Science and Technology Center is located in Shanghai. DSM’s business is growing healthily and steadily in China with revenue of more than USD1.7 billion in 2013. For further information, please visit www.dsm.com.cn.