MICHELIN XDR250 50/80 R57: the tire with an even-greater load capacity
Tires for dump trucks at open-pit mines are subject to the most exacting requirements and the highest yield demands on extreme terrains. Designed as a benchmark on trucks with load capacities of over 250 T, the new MICHELIN XDR250 tire is a perfect illustration of the Group's open innovation strategy.
A tire developed in partnership with two major players in mining equipment
Developed thanks to teamwork and common specifications with Caterpillar & Komatsu for their latest generations of machines, the MICHELIN XDR250 is able to carry heavier loads and increase the amount of material carried by rigid dampers per hour.
A long-term partnership with Caterpillar
From co-designing the tire and its features to testing at the Caterpillar test center in Tinaja, cooperation with Caterpillar has led to the development of a solution that meets the specific demands of market players, in that it:
- offers a greater load capacity,
- offers more TKPH (Ton Kilometer Per Hour),
- has been enlarged to match the growing dimensions of new generations of machines.
Michelin – working in response to Komatsu specifications
Ever faithful to its open innovation strategy, Michelin worked with Komatsu engineers to ensure their demands formed an integral part of the features of the MICHELIN XDR250 tire. This resulted in the tire being designed alongside the second-generation KOM 830 E AC dumper truck, followed a few months later by accreditation for the dumper truck.
The new MICHELIN XDR 250 offer higher productivity than competing tires
With a load capacity of up to 67 t, the new MICHELIN XDR250 tire increases productivity of rigid dumpers by at least 25% compared to its main competitor, the Bridgestone 46/90 R 57 VRDP, with no trade-off on tire-life.
An overview of the key advantages of MICHELIN XDR 250 tires
- Greater volume: the MICHELIN XDR250 tire contains an additional 9.2% in air volume compared to its predecessor, enabling it to carry heavier loads.
- Lower temperature operation: its new tread incorporates smaller rubber blocks crossed by more grooves, optimizing air flow and cooling. Compared to its predecessor, the MICHELIN XDR250 tire can boast a peak temperature of less than 8°C, in comparable operating conditions.
- Have been designed for mining transport requirements: aside from all its characteristics, it is available on the market for all new vehicles.
Meeting customer expectations
Key stages with Caterpillar
March 2012: working in partnership with Caterpillar engineers, co-designing the tire and its characteristics.
2013: designing the tire in close working partnership with Caterpillar.
2014: production of the first XDR250 in January. Measuring and testing of the XDR250 in Almeria, Spain and at the Caterpillar test centre in Tinaja.
2015: launch of the new MICHELIN XDR250. All CAT 793F with 32’’ rims are approved for use with MICHELIN XDR250 tires.
Key stages with Komatsu
June-September 2012: working partnership with Komatsu, whose requirements play a central role in XDR250 characteristics.
2013: design of the XDR250 jointly with the new second-generation KOM 830E AC dumper.
2014: XDR250 testing in Almeria, Spain and on the new second-generation 830E AC truck at the Komastsu test centre. The demands of Komatsu internal tests are fulfilled.
2015: launch of the new MICHELIN XDR250. The new XDR 250 tire is approved for use both on the current KOM 830E AC and on the new second-generation KOM 830E AC to be launched in 2015.