Smooth shifting, 29-cubic-yard articulated dump truck
Komatsu’s HM400-2 articulated dump truck builds on Komatsu’s exclusive, proven features such as hydropneumatic front and rear suspension, 2-stage lift cylinders, reliable wet multiple disc brake retarder and maintenance free oscillating hitch. It has a powerful, clean SAA6D140E-5 turbocharged, after-cooled diesel engine which provides an increase in the maximum net output to 438 hp (327 kW). The easy-to-load body has a heaped capacity of 29.2 cubic yards (22.3 cubic metres) and a low loading height of nine feet nine inches (297 cm).
The new dump truck features high torque at low speed, impressive acceleration and low fuel consumption. The electronically controlled countershaft transmission with K-ATOMiCS has been proven in Komatsu’s rigid dump trucks. This technology-rich system assures smooth shifts without shock and maximizes powertrain life. The electronic clutch modulation system ensures proper clutch pressure when the clutch is engaged, and the total control system controls both the engine and transmission by monitoring the vehicle conditions. The engine power mode selection system makes it easy to select the appropriate mode depending on the working condition. Provisions for tailgates is standard for faster and more cost effective means of attaching tailgates in the field.
The new dump truck features high torque at low speed, impressive acceleration and low fuel consumption. The electronically controlled countershaft transmission with K-ATOMiCS has been proven in Komatsu’s rigid dump trucks. This technology-rich system assures smooth shifts without shock and maximizes powertrain life. The electronic clutch modulation system ensures proper clutch pressure when the clutch is engaged, and the total control system controls both the engine and transmission by monitoring the vehicle conditions. The engine power mode selection system makes it easy to select the appropriate mode depending on the working condition. Provisions for tailgates is standard for faster and more cost effective means of attaching tailgates in the field.