Michelin has developed new mining tyres for the 250 ton rigid mining haul truck.
According to the company the tyres – the MICHELIN XDR250 50/80R57 – have been designed to fit Cat 793F and Komatsu 830E AC models, and increase productivity by around a quarter as they “can increase the amount of material carried per hour”.
Michelin North America director for earthmover marketing, Jamey Fish, explained that "this tyre carries a 60-tonne nominal load capacity at a faster speed with a longer life cycle”.
The tyres feature technical upgrades such as greater load capacity; lower operating temperatures; and faster driving speed.
A new tread pattern incorporates smaller rubber blocks crossed by grooves that optimise air flow and cooling, while the tyre runs 8 degrees Celsisu cooler in the crown, allowing it to carry a heavier load at the same speed or to increase the average operating speed.
The MICHELIN XDR250 contains an additional 9.2 per cent in air volume.
It is MEMS-readied (Michelin Earthmover Management System), with an integrated sensor system that measures both tyre pressure and temperature.
This system allows for real-time alerts which are sent to the mine's operator in the control room to notify in the event that a tyre is overheating or is over- or under-inflated so immediate action can be taken.