XZ420E HDD is a new small-tonnage product which sets advanced technologies, user experiences and high construction efficiency as a whole, pays more attention to construction requirements, operation habits and system energy efficiency, and can be widely used in urban pipeline construction such as electric power, communication, cable TV and so on.
Highlights Introduction
1. The single-handle hydraulic pilot control system provides the whole machine with comfortable operations and flexible adjustment performance, and hydraulic components of first-class brands ensure the operational reliability of the whole hydraulic system.
2. Rack-and-pinion push-pull ensures the operational stability and transmission reliability of the power head. XCMG patented technology of power head and vise floating can greatly protect the drill pipe thread to increase the service life of the drill pipe by 30%.
3. High/low speed push-pull and rotation system in which the variable piston motor achieves the high/low push-pull speed of power head improves the ability to adapt to various working conditions and construction efficiency of the drilling rig.
4. The whole machine adopts innovative technologies such as seat switch, logic interlock, optional proportional wire-controlled walking, electric shock protection, 20% instantaneous force augment and so on to meet requirements of EU CE safety certification.
5. The push-pull and rotation adopt multi-output technology, and the engine adopts high-pressure common rail and full electric control module technology. The system is energy-saving and efficient, and the construction efficiency is increased by 15%.
6. To meet the diverse needs of customers, cab, air-conditioner, cold boot, mud anti-freezing, automatic pipe loading, electric shock alarm and automatic thread oil daub functions are optional to reduce labor intensity and improve construction efficiency.
Technical Introduction
1.Engine System
Dongfeng Cummins turbocharged engine ensures strong power and meets China Ⅲ emission standard.
Engine Model
QSC8.3-C240
Rated Power
179kW
Rated Speed
2200 r/min
Max. Engine Torque
1040 N·m /(1400r/min)
Emission Standard
China III
Dongfeng Cummins turbocharged engine ensures strong power and efficient construction.
Engine Model
6CTAA8.3-C240
Rated Power
179kW
Rated Speed
2200 r/min
Max. Engine Torque
1040 N·m /(1400r/min)
Emission Standard
China II
2、Power Head
The power head realizes the push-pull action through the rack-and-pinion. XCMG patented power head and vise floating technology reduces the damage to the threads during the process of unloading the drill pipe, reduces the operation requirements for the operator, and increases the service life of the drill pipe by 30%. The piston variable motor achieves large torque rotation and high speed push-pull, making the construction efficient and the system energy-saving.
Push-pull Speed
42m/min
Max. Rotation Torque
18500N·m
3、Hydraulic System
The host machine adopts hydraulic pilot control system to obtain sensitive adjustment, comfortable operation and high reliability. Main hydraulic components (pumps, valves, motors and cylinders) are all domestic and international first-class brand products with good performance and high reliability. The three pumps work coordinately for the actions of the whole machine and reasonably distribute the engine power.
4、Chassis
XZ420E adopts stable chassis and high quality steel track with rubber plate to obtain good site adaptability and high reliability; breaststroke leg structure supported by large size cylinder ensures good stability. Walking reducer of famous brand has stable performance and the traveling speed can reach 2.6 km / h.
Track Outer Width
2240 mm
Steel Track Width
400 mm
Wheel Track
2140mm
Number of track rollers
2×6个
Gradeability
30%
Traveling Speed
2.6km/h
Ground Pressure
63kPa
5、Mud System
The 450L/min mud pump provides strong and large-flow mud, which ensures smooth and safe construction and meets construction requirements in rock formations. Mud anti-freezing device for winter and routinely used mud cleaning device are optional to improve construction convenience.
Mud maximum flow
450L/min
Mud maximum pressure
80bar
6、Cab (Optional) and Console
Optional cab with air-conditioner ensures the normal construction work in winter and summer, provides the operator with a comfortable and safe operating environment, and improves the construction efficiency.
The operating system fully considers the comfort of the operator during the construction process and the rationality of the instrument layout. Combined with the hydraulic pilot control and electronic control, the operating system is comfortable, convenient and energy-efficient.
7、Pipe Loader (Optional)
Semi-automatic pipe loader
The machine can be optionally equipped with semi-automatic pipe loader which can realize the handling of drill pipe through the motor rotating mechanism.
Full-automatic pipe loader
It can also be optionally equipped with a full-automatic pipe loader to realize automatic handling of drill pipe through mechanical devices. The drill pipe box can accommodate 36 pieces of φ83 integral drill pipes. If there are not enough drill pipes in the box during the construction process, the pipe charging function can be realized by the XCMG patented structure. The pipe loader ensures high construction efficiency and good reliability, and effectively reduces the labor intensity.
Transport Program
The whole machine transportation dimension
6500×2250×2450mm
Transportation weight (Simple configuration, excluding Drill Pipes and Drilling Tools)