Nanjing Construction Machinery Co.,Ltd.

■ Performance Characteristics(XR120)
■ Load-sensing hydraulic system.
■ The color liquid crystal screen makes the operation easy and simple. The depth and the perpendicularity of the borehole can be detected and controlled automatically. Auto fault control and alarm system is equipped.
■ The limiting power control system is provided with the rotation automatic positioning function.
■Self-made chassis with expansible crawler and H-shaped frame are provided.
■ The complete machine can be transported for a long distance (the drill rod is not needed to be disassembled).
■ The Global Positions System(GPS) Can provide the operation condition of the complete machine and the analysis on the teledata with long-distance real-time monitoring and long-distance fault diagnosis.

Main Technical Specification

Model		XR120
Engine	Model	CUMMINS 6CTAA8.3-C185
Engine	Rated Power (kw)	138
Rotary Drive	Max.output torque (kN·m)	120
Rotary Drive	Rotary speed (r/min)	8～26
Max.Drilling Diameter (mm)		Φ1500
Max.Drilling Depth (m)		50(5-section),40(4-section )
Pull-Down Cylinder	Max.pull-down piston push (kN)	114
	Max.pull-down piston pull (kN)	148
	Max.pull-down piston stroke (m)	3.8
Main Winch	Max.Pulling force (kN)	135
Main Winch	Max.line speed (m/min)	≥70
Auxiliary Winch	Max.Pulling force (kN)	60
Auxiliary Winch	Max.line speed (m/min)	≥70
Mast Rake	Side/forwards	±3° / 5°
Undercarrige	Max.traveling speed (km/h)	2.0
	Max.grade ability (%)	40
	Min.Clearance (mm)	352
	Track shoe width (mm)	700/800
	Distance between tracks (mm)	2250～3300
Hydraulic System	Working pressure(Mpa)	30
Overall Drilling Weight (t)		41.5
Dimension	Working condition (mm)	7310×4000/4100×17650
	Transportation condition (mm)	13200×2995/3050×3460
	Transportation condition (mm)	12800×2995/3050×3200