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长江挖掘机厂自行研制开发、全部采用国产元件的WY452、WY202全液压挖掘机,通过部级鉴定。WY452采用高压双回路总功率变量系统,发动机功率利用充分,作业速度与作业力之间可以自行调节,具有生产效率高,机动性能好,驾驶室宽敞舒适等特点,WY202是以柴油机为动力的履带式全液压单斗挖掘机,可根据需要调换正铲、反铲、装载、抓斗和起重,具备多种功能,有
The WY452 and WY202 hydraulic excavators developed by the Changjiang excavator factory, which are all self-developed and domestically-produced components, have passed the departmental appraisal. WY452 adopts high-voltage double-circuit total power variable system. The engine power is fully utilized. The operating speed and working force can be adjusted. It has high production efficiency, good maneuverability and spacious and comfortable cab. WY202 is diesel-powered crawler belt. Full-hydraulic single-bucket excavator, can change the shovel, backhoe, loading, grab and lifting as needed, with a variety of functions, there are