1977年曾有人论证了研制铲斗容量8、12、20和40米~3新型露天矿用液压挖掘机的必要性、重要性和发展前景。新系列液压挖掘机可能成为重新装备露天矿山的基础。工业上广泛采用大型液压挖掘机后,可以得到几千万卢布的经济效果,可以节省几万吨钢铁。目前,法国波克兰公司生产的1000CK型液压挖掘机,正在苏联乌拉尔进行试验。液压挖掘机既能用于混合挖掘工作面,又 In 1977, it was argued that the necessity, importance and prospect of the development of new open pit hydraulic excavators with bucket capacity of 8, 12, 20 and 40 m ~ 3 have been demonstrated. The new series of hydraulic excavators may become the basis for re-equipping open-pit mines. Widely used in industry after a large hydraulic excavator, you can get the economic benefits of tens of millions of rubles, you can save tens of thousands of tons of steel. Currently, the 1000CK hydraulic excavator manufactured by the French company Poclain is undergoing tests in the Urals, the Soviet Union. Hydraulic excavators can be used both for mixing and mining work surfaces