Walking Excavator

A Walking Excavator or popularly Spider Excavator is a special type of all-terrain excavator. Like the regular excavator it consists of a boom, stick, bucket and cab on a rotating platform known as the "house". However, the house sits atop a different type of undercarriage. The undercarriage consists of leg or arm-like extensions with or without wheels. All can move in increments hence the name Walking Excavator. This is different from an early 20th century dragline excavator where a set of feet plate are alternately lifted and lowered.

单词	Walking Excavator
释义	Walking Excavator 英语百科 Walking Excavator A Walking Excavator or popularly Spider Excavator is a special type of all-terrain excavator. Like the regular excavator it consists of a boom, stick, bucket and cab on a rotating platform known as the "house". However, the house sits atop a different type of undercarriage. The undercarriage consists of leg or arm-like extensions with or without wheels. All can move in increments hence the name Walking Excavator. This is different from an early 20th century dragline excavator where a set of feet plate are alternately lifted and lowered.
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