? The special telescopic hydraulic chassis for rotary drilling rig features extra stability and convenience for transportation.
? The imported Cummins engine features strong power and sufficient power reservation, applicable to operation at plateau areas. And it meets Euro Ⅲ noise and emission standards.
? The large triangle luffing mechanism features extra strong stability.
? The extra-large section drill mast reduces the swing amplitude and improves work quality.
? The drill stem bracket reduces the swing amplitude of drill stem and guarantees verticality.
? The load sensing hydraulic system features higher efficiency and more energy-saving.
? It can be mounted with multiple drilling tools and achieve both dry and wet drilling operation. It is applicable to the drilling of cast-in-place pile on various foundation conditions. The drill stem adopts interlocking or friction telescopic structure, featuring big torque and high efficiency.
? The steel wire rope of main winch adopts single layer structure, which extends its service life and it’s convenient to operate. And the single layer steel wire rope makes the drilling depth measuring device on the main winch more accurate, and convenient to repair.
? It can be mounted with optional pull down winch, and the max. pull down piston push can be up to 40 ton.
? The power head adopts imported reducer and motor of world-famous brands, featuring big torque and high work efficiency.
? The infrared camera is convenient for operators to observe the steel wire rope of main winch from inside the cab at any time.

Technical Parameters:

Model					XR460D
Engine	Model				QSX15-C600
	Rated power			kW	447
Rotary head	Max. output torque			kN.m	460
	Rotary speed			r/min	6～20
Max. drilling diameter				mm	Φ3000
Max. drilling depth				m	112
Pull-down cylinder	Max. pull-down piston push			kN	300
	Max. pull-down piston pull			kN	400
	Max. pull-down piston stroke			mm	6000
Main winch	Max. pulling force			kN	520
	Max. pulling speed			m/min	60
Auxiliary Winch	Max. pulling force			kN	100
	Max. pulling speed			m/min	65
Mast rake sideward/forward/backward					±5°/5°/15°
Undercarriage			Max. travel speed	km/h	1
			Max. gradeability	%	35
			Min. ground clearance	mm
			Track shoe width	mm	1000
			Distance between tracks	mm	4050～5500
Hydraulic system		Working pressure		Mpa	33
Overall operating weight				t	152
Dimension	Working condition			mm	10750×5500×28900
	Transportation condition			mm	18040×4050×3615