Why engine power matters For miners, the performance of ultra-class haul trucks is critical to overall productivity. These machines do the heavy lifting, moving hundreds of tons of material every hour, often in harsh environments and at high altitude. At the heart of this performance is the engine. While many operations rely on proven mid-range horsepower platforms to power vehicles, there comes a point when pressure to optimize cost per ton, improve uptime, and simplify fleet logistics leads to a decision on whether to upgrade engine power. To better understand this moment and the myriad factors at play, Cummins has put a spotlight on the comparative performance differences between products within its engine range, to assess where and when miners might make the jump up in size
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