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该机型介于４５吨级别的ＰＣ４００－６系列和７５吨级别的ＰＣ７５０－６ 系列之间，装备有该级别中最大功率的发动机和最大容量的铲 斗，是小松公司近期开发的集高生产率，强大动力和优良作业 性能于一体，领先时代的液压挖掘机。 （１）其特点：装备康明斯Ｎ１４环保型发动
This model is between the 45-ton class PC400-6 series and the 75-ton class PC750-6 series. It is equipped with the engine with the highest power in this class and the largest capacity bucket. It is a recently developed high productivity of Komatsu. , powerful power and excellent work performance in one, leading the era of hydraulic excavators. (1) Its characteristics: Equipment Cummins N14 launch