Rotary Drilling Rig SQR22 is one kind of intelligence, highly effective pile foundation hole-forming equipment.

Rotary Drilling Rig SQR22

Multi-purpose rotary drilling rig of Shangqi Heavy Industry is a hi-tech product integrated with machine, electricity and mechanics fluids with modern idea and methods to design and manufacture, which is one kind of intelligence, highly effective pile foundation hole-forming equipment. There are the following characteristics:

lAdopt rotary drilling rig hydraulic telescopic crawler dedicated chassis, ensure the whole machine stability, good mobility and strong adaptability during operation.

lAdopt the most advance imported engine as power source, turbo supercharging upgrades the engine performance and power, direct fuel injection type electronics controller provides timely and accurate fuel charge, sufficient burning, to achieve strong power output with low fuel consumption, low emissions and low noise.

lThe lift system of main winch with the system optimization design increases the durable and safety coefficient, doubles the service life of steel wire, reduces the equipment’s running cost in large scale.

lAdopt the double motors and double reducers with world famous Italian Brevini system, the rotary table can automatically adjust the drilling speed with the stepless speed regulation to meet high torque output and the demands for the hard ground layer at geological condition. Multi-point lubrication, three levels sealing of gearbox ensures construction requirements in severe environment. Heavy duty shock absorber reduces the impact of rotary table effectively.

lThe parallelogram system adopts the popular parallelogram structure, all pin rolls connection is with double support structure, each hinge point by optimal design could moves swiftly, good stability and high efficiency operation.

lThe hydraulic system has the contemporary international advanced level negative flow control and the regeneration function, to meet the specific requests and the energy saving purpose. The constant power and the electrical power override control, to bring engine into maximum function. The operation adopts the LS forerunner controlling for accuracy, sensitivity and safety.

lElectrical control system is the headquarter of the rotary drilling rig, using CAN-BUS technology, achieve the intelligent controls of engine monitoring, drill movements control, virtual instrument, fault detection and diagnosis, alarm and information display, etc.

lApplied to locker and friction type drill bar, attachment could be short twist drills, universal drilling bucket, sand bucket, used for the clay bed, gravel bed, pebble bed and rock formation with a certain weathering degree.

lThe cabin with air condition and dust prevention may be used for windy and dusty with automatic defrosting, shockproof and sound-proof, tridimensional blowing-in, wide open, safety and comfortable, also available at construction the alpine and low voltage area.

SQR22Technical parameters
Max. drilling diameter	With casing	mm	1800
	Without casing	mm	2200
Max. drilling depth		m	68
Dimension	Operation status	m	8.4×4.4×2.1
	Transporter status	m	15.1×3.2×3.4
Min. working radius		mm	3830
Total weight		T	70
Engine and undercarriage	Engine model		QSM11-C330
	Undercarriage model		ZJ22B-7
	Rated power	Kw/rpm	246/2100
Hydraulic system	Max. working pressure(main pump)	MPa	35
	Max. working pressure (auxiliary pump)	MPa	30
	Max. flow rate(main pump)	L/min	2×260
	Max. flow rate(auxiliary pump)	L/min	2×70
Rotary table	Max. torque	KN.m	220
	Rotating speed	rpm	7--26
Crowd cylinder	Max. pushing force	KN	180
	Max. pulling force	KN	240
	Max. stroke	mm	5000
Main winch	Max. pulling force	KN	210
	Max. pulling speed	m/min	70
	Wire rope diameter	mm	32
Auxiliary winch	Max. pulling force	KN	110
	Max. pulling speed	m/min	70
	Wire rope diameter	mm	20
Mast tilt	Sidewards	°	±6
	Forwards	°	5
	Backwards	°	90
Swing platform	Swing angle	°	360
	Swing speed	r/min	2.8
Undercarriage	Max. driving speed	Km/h	1.73
	Max. grade ability	°	15
	Min. ground clearance	mm	443
	Track shoes width	mm	800
	Telescopic crawler width	mm	3200---4400
	Overall length of crawler	mm	4550
	Traction	KN	400
Kelly bar	Lock	mm	4*Φ440*14500
	Friction		5*Φ440*14500

Rotary Drilling Rig SQR22