DUBAI – The R&D teams at Michelin spent more than six years developing the new 40.00 R57 and 53/80 R63 Michelin XDR3 (www.Michelin.com) tires for rigid dump trucks operating in surface mines. One of the main challenges facing mine operators today is to reduce the cost per tonne by improving operational efficiency, while still ensuring safety for all within the workplace, and thus increasing profitability.
The new Michelin XDR3 responds to the needs of mine operators by incorporating three key innovations, which together increase tire life by a minimum of 10% compared to its predecessor, the Michelin XDR2.
- A revolutionary new tread pattern – Compared with its predecessor this new tread pattern offers multiple benefits. It offers better endurance due to improved heat dissipation capabilities – 8°C cooler in the tread area. A greater volume of tread rubber is in contact with the ground which improves wear and ensures better load distribution throughout the contact patch due to a lower contact pressure. Finally, interlocking shoulder blocks resist excessive movement during cornering and further reduce tire wear.
- Four innovative rubber compounds (MB4, MB, MC4, MC) – An exclusive new mixing process ensures a more uniform composition of rubber compounds and a superior level of carbon black dispersion that increases wear resistance. Each unique compound offers specific performance characteristics adapted to site conditions and usage, from high wear resistance to high thermal capacity for speed.
- Corrosion isolating steel cables – The high strength steel cables used in the tire’s casing are 10% stronger than in the XDR2 and are encapsulated in rubber to prevent the spread of corrosion within the casing, which extends the life of the tire.
The XDR3 is compatible with the Michelin earthmover management system. This means that it is possible to quickly and easily install state-of-the-art data sensors to capture and transmit temperature and pressure information in real time.
The 40.00 R57 MICHELIN XDR3 is now available, while the 53/80 R63 will be available from January 2017.