HM4001 Articulated Dump Truck KOMATSU（HM4001铰接式自卸车,小松）.pdf

Introduction of Products HM400-1 Articulated Dump Truck Hiroyuki Igusa The market had strongly requested Komatsu to develop articulated dump trucks by itself. We developed the first model, the HM400-1, and put it on the Japanese market in May 2001 and on the USA market (which was the main market) in June 2001. In this paper, we will introduce the main features of the HM400-1 which has outstanding performance and durability as a construction machine based on our technologies. Key words: Articulated Dump Truck, Outstanding Productivity, Outstanding Reliability, Differential Lock, Interaxle Differential Lock 1. Introduction The world demand for articulated dump trucks increased rapidly and has stayed as high as 4,200 to 4,700 units/year in recent years (Fig. 1). We judged that it was the time to put a Komatsu articulated dump truck on the market and developed the HM400-1 (Photo 1). Unit 6,000 5,000 4718 4711 4745 4131 583 639 798 4248 4318 Payload of 4,000 385 35 tons or more 772 856 963 759 781 2868 646