Michelin North America is introducing the first-ever “3-star” 18.00R33 tire on the market for rigid dump trucks (RDT). The new Michelin XTRA Load Grip and the Michelin XTRA Load Protect will allow users to increase load capacity or accommodate more distance per hour to maximize productivity.
A star rating is the industry’s indicator of load capacity for a given dimension as defined by the Tire and Rim Association.
“Quarry managers demand continuity of operations,” said Jake Thompson, Michelin B2B North America mining marketing manager. “Rigid dump trucks are expected to move as much material as possible by moving faster or by carrying more load. This robust Michelin tire provides a solution that maximizes productivity and output of the quarry while delivering traction, damage resistance and increased tire life.”
The new Michelin XTRA Load tire is available for two surface RDT applications:
Michelin XTRA Load Protect for hard, sharp, abrasive conditions on flat, dry surfaces, where the priority is protection and damage resistance — conditions often found in quarries and construction sites.. With a 7 percent longer wear life, the revolutionary tread pattern contains a greater volume of tread rubber and has better load distribution across the contact patch. This tire has interlocking blocks and improved heat dissipation, which reduces the temperature in the tread area. Corrosion-proof cables within the tire structure increase aggression resistance.
Michelin XTRA Load Grip for soft, loose, muddy ground conditions in mining and quarrying operations on slopes and inclines, where the priority is high grip and traction. A reinforced casing gives the tire a higher payload, or an increase of 12 tons in load capacity per machine — a huge increase in productivity when multiplied by the number of cycles made daily. The tread comprises 30 percent more biting lug edges, which improves braking, cornering and accelerating. The tire has the ability to handle speeds up to 21 mph thanks to cooler internal running temperatures. The tire also provides 5 percent longer wear life, with more rubber in the contact patch and improved damage resistance with corrosion-isolating steel cables.
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