1984年,露天铲运机的需求量急剧增长。在非公路运输设备市场中,露天铲运机所占比例由28%上升到38%,而铰接式后卸汽车则由28%下降到21%,但预计不会达到七十年代维持的年销售5000台以上的水平。1984年露天铲运机需求量虽比1983年增加75%,但销售量还不及1979年之半。这种形势严重打击了铲运机制造厂。目前,只有卡特皮勒公司计划生产其完整系列的、由8.4米~3613C 型升运式铲运机至700马 In 1984, the demand for open-cut scrapers increased dramatically. In the non-road transport equipment market, the share of open-air scrapers has risen from 28% to 38%, while the number of articulated rear-loading vehicles has dropped from 28% to 21%, but it is not expected to meet the annual sales volume maintained in the 1970s More than 5,000 levels. Although the demand for open-cut scrapers in 1984 was 75% more than in 1983, sales were still less than half those in 1979. This situation has seriously hit the scraper factory. Currently, only Caterpillar has plans to produce its complete line, up from 8.4m to 3613c lift skidders to 700 horses