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WY50型履带式液压挖掘机是一种量大面广的工程机械(图1),可用于挖掘Ⅳ级以下的各种土壤,正反铲斗通用(反铲斗旋转180°即成正铲),还能换装液压冲击器、抓斗和起重吊钩等。该机的主要优点是:结构合理可靠、总体布置合理、紧凑、操纵轻便灵活、便于维修保养、尾部回转半径小、特别适用于场地狭窄地带的工作。1987年12月通过了部级鉴定。
WY50 crawler hydraulic excavator is a large-scale construction machinery (Figure 1), which can be used for digging all kinds of soil below class IV. The bucket is common to the front and back buckets (the back bucket rotates 180° and becomes the front shovel). Can also replace the hydraulic impactor, grabs and lifting hooks. The main advantages of this machine are: reasonable and reliable structure, reasonable overall layout, compactness, light and flexible operation, easy maintenance and maintenance, small tail radius, and it is especially suitable for work in narrow areas. December 1987 passed the ministerial appraisal.