在多数采石场中,轮式装载机和液压挖掘机是目前主要的装载设备。这一趋向早在60年代铰接式装载机问世时便开始了,并从1970年随着液压挖掘机的出现而得到了加强。1976年德国亚琛工业大学的第三矿山研究所根据165个露天采石场和采矿场的调查资料得出:斗容2.5立方米以上、工作重量50吨的液压挖掘机,即使挖掘条件不利,在技术上和经济上都是适用的,重型的比小型的更适用于不利的工作条件。当单纯用作装载物料时,轮式装载机的斗容至少在3.5立方米,而且所装物料破碎良好、磨蚀性低 In most quarries, wheel loaders and hydraulic excavators are currently the main loading equipment. This trend began as early as the advent of articulated loaders in the 1960s and was strengthened in 1970 with the advent of hydraulic excavators. According to the survey data of 165 open-air quarries and mining sites, the Third Institute of Mining, RWTH Aachen, Germany in 1976 found that hydraulic excavators with a capacity of more than 2.5 cubic meters and a working weight of 50 tons, Technically and economically applicable, heavy duty is more suitable for unfavorable working conditions than small ones. When used solely as a loading material, the wheel loader has a bucket capacity of at least 3.5 cubic meters, and the contents are well broken and have low abrasiveness