集铲、装、运、卸等功能于一体的拖式铲运机,曾被广泛用于土方施工中。近年随着其替代产品（铰接式自卸车、液压挖掘机等）的出现,市场一度萎靡,甚至出现了零销售的局面。目前,国外一些厂家新推出的半挂式拖式铲运机,以其优越的使用性能、低廉的采购价格、便宜的施工成本和高效的施工效率为铲运机市场注入了新的活力。 The tractor scraper, which combines the functions of shoveling, loading, transporting and unloading, has been widely used in earthwork construction. In recent years, with the advent of alternative products (articulated dump trucks, hydraulic excavators, etc.), the market has been sluggish, and even zero sales have emerged. At present, the semi-trailer tractor scrapers newly introduced by foreign manufacturers have injected new vitality into the Scraper market with its superior performance, low purchase prices, cheap construction costs, and efficient construction efficiency.