Basic Features of Hydraulic Excavators Single-bucket hydraulic excavators are high-efficiency loading equipment developed on the basis of mechanical transmission front shovel excavators. They are all composed of three parts: working device, slewing device and running device, and the working process is basically the same. The main difference between the two lies in the difference in the power device and the working device.

The hydraulic excavator uses a volumetric hydraulic transmission system (that is, uses various hydraulic components) between the power unit and the working device to directly control the motion state of each system mechanism, thereby performing excavation work. Hydraulic excavators are divided into two types: full hydraulic transmission and non-full hydraulic transmission