1) The height of the arm can be adjusted according to the size of the roadway to avoid touching the anchor rods, cables, and roadway roof, so that the excavator can operate flexibly in different height sections;

2) Adopting a tailless design, a large excavation area can be obtained with minimal turning radius;

3) The three arm oil cylinder adopts a hidden structure, effectively protecting the oil cylinder, and is equipped with a protective sleeve to avoid collision and damage to the oil cylinder during operation;

4) The precise hydraulic pilot control system can generate sufficient hydraulic force and work speed in any severe operation process in coordination with the operation; All joysticks can be operated with very little force, comfortable and convenient;

5) Unique overall dynamic ultra-low center of gravity design, which can be more stable in lifting or slope operations;

6) The hydraulic system is composed of a load sensitive system, which can greatly improve the utilization efficiency of the motor, reduce system heating, have a compact structure, and be energy-saving and efficient;

7) Adopting advanced domestic electronic control system, it can meet the voltage of 380V/660V (1140V);

8) Can be disassembled and disassembled.