1. ISUZU engine
Water cooling, direct injection, turbo charged, inter cooler, low fuel consumption, reliable performance, and good torque capability.
2. Advanced pump-engine-load control system
Check and monitor the engine speed, control the pump power and make dynamic control on excavator operation according to the amount of external load in terms of the throttle position, thus to make full use of engine power, and make the best performance under the condition of reducing fuel consumption.
A. Four power modes:
 H: heavy load, high efficiency.
 S: medium load, good efficiency and fuel consumption.
 L: light load, the lowest fuel consumption and noise.
 B: for crushing work conditions.
B. Positive flow control
The displacement of main pump is in direct ratio with the signal of output pressure of pilot valve, which make the pump flow follow the needs of working devices and make real time match, and thus greatly improves the comfortable and smooth operation.
C. Automatic idling
When the time in the neutral position in the hydraulic system exceeds the set time, it can make automatic idling, save the fuel consumption, and reduce noise.
3. Transient pressure increase
The pressure can be increased transiently through the switch when the digging force is insufficient to overcome the external load.
4. The boom and arm retention system
The system can effectively affect the descend of boom and arm during the long time retention.
5. Boom and arm flow regeneration system
The boom-descend and bucket-in operation can make flow regeneration, which make it work faster and save energy, and meanwhile the cylinder cavitation will not occur.
6. Non-power assisted boom descend
With special design, the boom descend can be achieved with no assistance of power.
7. The semi-priority of boom to bucket, and slewing to arm operation makes the operation more harmonious and smooth.
8. Perfect monitoring and service function
The large color LED can meet the operators’ needs with multiple functions, such as self-diagnosis of troubles, GPS system, and automatic transfer of GPS data, remote monitoring, and remote trouble diagnosis.
9. Ergonomics design, easy maintenance
The engine hood, left and right doors can all be opened at wide angle, which is convenient for inspection and repair.
10. The full steel cover structure ensures the strength of the machine and improves the life.