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美国《马利昂动力铲》公司从事挖掘机生产已有135年的历史,该公司于1974年10月在拉斯维加斯展览会上展出了作业设备传动系统和转斗机构都十分新颖的《Super front》挖掘机。这种新式的单斗正铲挖掘机于1973年首批在梅萨比矿区搭柯尼托福铁矿交付使用,在露天矿场从事运输设备装载矿岩工作。试验表明,《Super front》挖掘机有着一系列优点。它较之传统挖掘机具有更高的切
The United States “Marion Power shovel” company engaged in excavator production has been 135 years of history, the company exhibited in Las Vegas in October 1974 at the exhibition equipment, operating equipment, transmission system and bucket body are very new The “Super front” excavator. The new single-bucket front shovel was delivered in 1973 for the first batch to be delivered at the Minehead Mine in Mesahibe, and was used to transport ore-loaded rock in open-cut mines. Experiments show that “Super front” excavator has a series of advantages. It has a higher cut than traditional excavators