280kn Reverse Rotary Drilling Rig

Product Description

280Kn Reverse Rotary Drilling Rig

It introduces the back-inclination large triangle structure with stationary luffing support, which is suitable for working conditions of low-tonnage drilling rig, improving the rigidity of working mechanism and enhancing the stability of whole drilling rig while achieving easy transportation;

 

The imported Kawasaki hydraulic parts can achieve reasonable powertrain matching and high construction efficiency;

 

The imported Cummins engine can minimize fuel consumption with the help of two optional accelerator control modes;

 

The working amplitude of auxiliary winch is increased, which can hoist light and small objects and save cost as well;

 

The main winch is designed with a high displacement motor, achieving more sensitive response and more reliable working and also getting rid of the difficulty in earth dumping for pile holes of small diameter;

 

The standard reducer joint can adjust drill rod combination according to actual conditions, thus effectively reducing fuel consumption and improving construction efficiency;

 

It introduces the proprietary intelligent control system, CAN bus and PLC, including automatic/manual adjustment of drilling mast verticality, depth automatic detection and display, intelligent fault diagnosis and control.

 

Description		Unit	Parameter value
Max. drilling diameter		mm	Æ2000
Max. drilling depth		m	67,standard configuration
			(5-section friction Kelly bar)
			52,optional configuration
			(4-section-locking Kelly bar)
Allowable luffing scope (from center of drill rod to slewing center)		mm	3905~4800
Drilling rig dimension in working condition (L × W × H)		mm	8968×4400×22180
Drilling rig dimension in transport condition (L × W × H)		mm	16360×3250×3535
Weight of overall unit (standard configuration, excluding drilling tool)		t	76
Engine	Model		CUMMINS QSL-325
	Rated power/speed	kW	242/(2200r/min)
Max. working pressure of hydraulic system		MPa	35
Rotary drive	Max. torque	kN •m	220
	Rotational speed(Standard configuration)	r/min	7~25
Crowd cylinder	Max. Pushing force	kN	200
	Max. Pulling force	kN	200
	Max. stroke	mm	5000
Main winch	Max. pulling force	kN	230
	Max. single-rope speed	m/min	70
	Diameter of the steel wire rope	mm	30
Auxiliary winch	Max. pulling force	kN	80
	Max. single-rope speed	m/min	60
	Diameter of the steel wire rope	mm	20
Drilling mast	Left/right inclination of mast	°	4/4
	Front/back inclination of mast	°	5/15
Rotary table slewing angle		°	360
Traveling	Max. traveling speed of the overall unit	km/h	1.5
	Max. climbable gradient of the overall unit	%	35
Crawler	Width of crawler plate	mm	800
	External width of crawler (min.-max.)	mm	3250~4400
	Center distance between two longitudinal wheels of crawler	mm	4750
	Average ground pressure	kPa	108