Excavators, also known as excavating machinery, also known as backhoes, use buckets to excavate materials higher or lower than the bearing surface, and load them into transport

Vehicles or earth-moving machinery unloaded into stockyards.

Common excavator structures include, power unit, working device, slewing mechanism, steering mechanism, transmission mechanism, walking mechanism

and auxiliary facilities, etc.

From the appearance, the excavator consists of three parts: the working device, the upper turntable, and the traveling mechanism. Depending on its structure and use, it can

Divided into: crawler type, tire type, walking type, full hydraulic, semi hydraulic, full rotary, non full rotary, general purpose, special purpose

Type, articulated, telescopic arm and other types.