The Caterpillar D400E dump truck is designed for heavy-duty hauling applications in construction, mining, and quarrying operations. It is equipped with a powerful engine and a robust chassis to handle tough terrains and carry heavy loads efficiently.

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The dump truck features an articulated design, which allows for better maneuverability and stability, especially in challenging and uneven terrain. It has a multi-axle configuration with a rear-mounted dump body that can be hydraulically raised to unload materials.