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Komatsu has shown the updated dump truck HM400-3

Komatsu has shown the updated dump truck HM400-3

A week ago Komatsu America Corp. introduces the HM400-3 articulated truck. With a net horsepower of 469 hp (350 kW), the HM400-3 is powered by a Komatsu SAA6D140E-6 engine and is EPA Tier 4 Interim and EU Stage 3B emissions certified. The HM400-3 features a maximum gross vehicle weight (GVW) of 162,569 lbs. (73,740 kg), hauling up to a 44.1 US ton (40 metric ton) payload at its maximum ground speed of 34.7 mph (55.9 kph). Improved operating performance, lower fuel consumption, improved operator comfort and enhanced serviceability are features of the HM400-3 that provide maximum productivity and lower operating costs.

Built upon proven Tier 3 technology, the SAA6D140E-6 engine provides increased horsepower while lowering fuel consumption. The Komatsu Tier 4 Interim engine uses an advanced electronic control system to manage airflow rate, fuel injection, combustion parameters, and after-treatment functions to optimize performance, reduce emissions, and provide advanced diagnostic capability. As a leader in hydraulic technology, Komatsu has also developed a hydraulically actuated Variable Geometry Turbocharger (KVGT) and Exhaust Gas Recirculation (EGR) valve, resulting in better precision and air management as well as longer component life. The Komatsu Diesel Particulate Filter (KDPF) has an integrated design that will not interfere with daily operation but will keep the operator aware of its status.

The HM400-3 features the new Komatsu Traction Control System (K-TCS). The K-TCS system automatically provides optimum traction when operating in soft ground conditions. The HM400-3 is enhanced with K-ATOMiCS—Komatsu Advanced Transmission with Optimum Modulation Control System. K-ATOMiCS offers a six-speed, fully automatic transmission that uses an advanced electronic system to eliminate shift shock and torque cutoff to improve operator and engine efficiency. The new cab design provides a comfortable and quiet work environment for maximum operator can maximize productivity. The dashboard has been redesigned and the high back, heated air ride seat with 3-point seat belt has been relocated to improve visibility.

Through body design optimization the HM400-3 features increased body capacity and payload. The low 10’5”” (3164 mm) loading height easily matches with 40 ton to 60 ton hydraulic excavators or 5.5 yd³ to 7.5 yd³ wheel loaders. In addition, the two single-staged body lift cylinders provide a 70-degree dump angle.


  1. Адилет
    2013-06-07 13:30:53

    Здравствуйте! Какой расход топлива у самосвала КАМАТЦУ HM 400-1??? можете дать ответ Это срочно! За ранее спасибо!

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