The working device is the main component of hydraulic excavators. Currently, SY series excavators are equipped with a backhoe working device, which is mainly used to excavate soil below the parking surface. However, it can also excavate soil below the maximum cutting height. In addition to digging pits, trenching, and loading, it can also perform simple site leveling work. Excavation operations are suitable for excavating soil of grades I to IV, and for grades V and above, hydraulic hammers or blasting methods are required.
The backhoe working device consists of a boom, a stick, a bucket, a rocker, a connecting rod, and hydraulic pipelines for the working device, including boom cylinders, stick cylinders, and bucket cylinders.
