Komatsu HM400-2 is an articulated off-highway truck designed for hauling material in construction, quarry, and mining applications. It is part of Komatsu's HM series and is commonly used for earthmoving, aggregate transport, and site development work. The HM400-2 features a 40-ton class payload capacity, articulated steering, and a six-wheel drive configuration for traction on uneven terrain. It is powered by a Komatsu diesel engine and paired with an automatic transmission for load transport cycles. The truck is built for off-road haulage, with a dump body, suspension system, and operator cab designed for material handling operations.
| Center Axle - empty | 16,316.00 lbs (7,400.82 kg)
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| Center Axle - loaded | 54,335.00 lbs (24,645.97 kg)
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| Front Axle - empty | 39,430.00 lbs (17,885.17 kg)
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| Front Axle - loaded | 44,138.00 lbs (20,020.68 kg)
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| Operating Weight | 152,200.00 lbs (69,036.84 kg)
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| Rear Axle - empty | 15,815.00 lbs (7,173.57 kg)
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| Rear Axle - loaded | 53,727.00 lbs (24,370.19 kg)
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| Total Empty | 71,560.00 lbs (32,459.11 kg)
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| Total Loaded | 152,200.00 lbs (69,036.84 kg)
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