自六十年代首先在加拿大国际镍公司推广使用铲运机以来,目前已在全世界广泛采用,成为无轨采矿法的关键设备。现已有十余家工厂制造了数十种不同规格的铲运机,一般均由柴油机驱动,铲运机的主要制造者如美国的瓦格纳(Wagner)公司和埃姆科(Eimco)公司正进一步完善他们的名牌产品;而另一些较次要的厂家却 Since the first promotion of the use of scrapers at Nickel International Canada in the 1960s, it has now become widely adopted all over the world as the key equipment for the trackless mining law. More than a dozen factories now manufacture dozens of scrapers of different specifications, all driven by diesel engines. Major manufacturers of scrapers such as Wagner and Eimco in the United States are further Improve their brand-name products; while others are less important manufacturers