Down The Hole DTH Drilling Rigs Down Hole Drilling Machine Downward Drill

• After-sales Service: 12 Months
• Warranty: 12 Months
• Drill Hole Diameter: 120-200mm
• Transport Package: Bulk
• Specification: 4500x1620x2410mm
• Trademark: Jarlo
• Model NO.: KQTG-150
• Origin: China
• HS Code: 8430490000
• Production Capacity: 1000 Sets/Year

Product Description

KQTG-150 Down-the-hole drilling rigs
 

Overall size

Main technical parameters

Name					Unit	KQTG-150
Rated total power					kW	25.5
Main electric motor power/Diesel engine power					kW	22
Drill hole diameter					mm	120~220
Drill hole depth					m	0~100
Drill hole skew					%	≤1
Rotation performance		Rated rotation torque (forward rotation)			N.m	2700
		Rated rotation speed			r/min	35
		Rated pressure			MPa	≤14
		Flow rate			L/min	≤66
Supporting mechanism performance		Propulsion power			kN	0~44
		Lifting power			kN	0~44
		Propulsion speed			m/min	≥9
		Returning speed			m/min	≥9
		Advance stroke			mm	1820±50
		Rail length			mm	2500±50
		Min. working height			mm	3200±100
		Max.working height			mm	4133±100
Max. advancing speed (unloaded)					m/min	17
Max. returning speed (unloaded)					m/min	17
Drilling boom rotation angle					(°)	+180~180
Drilling boom Inclination				forward backward	(°)	10±2 55±5
				backward	(°)	55±5
Gradeability					°	≥14(-14°~+14°)
Max. driving speed					m/min	≥30
Turning radius					m	≤2500 (360° steering on the spot)
Braking type					/	Wet type spring brake
Overall size	Length(Transportation)				mm	4500±200
	width(Transportation)				mm	1620±50
	Height(Transportation)				mm	2400±100
Min. Ground clearance					mm	≥200
Hydraulic system rated pressure					MPa	16
Impactor performance			Suitable air pressure		MPa	0.8~1.6
			Rated air pressure		MPa	1.6
			Rated frequency		Hz	≥27
Total mass					kg	6000±200

 

Performance characteristics

Reliability and safety:

1. The drilling tool rotation directly driven by the low-speed and high-torque hydraulic motor, and the mechanical seal device effectively solves the problem of high-pressure gas and water pollution hydraulic motor; The drilling tool motor has a long life and simple maintenance.
2. The water and air system adopts the integral connection of the motor and the cleaning machine, which has reliable performance and long service life.
3. Electronic pulse oil injection system enables the impactor be lubricated effectively and to have a long life span.

Drive mode:
1.The machine is powered by electricity, with low operating cost, low energy consumption and low noise.
2.The wheels are independently driven by the motor, and the drilling rig has strong walking and passing ability, and can be turned 360°in situ, which has superior maneuverability.
Drilling performance:

1. The cross-section of the guide rail adopts a V-shaped structure, which has good guidance, high drilling accuracy, and the drilling deflection rate is less than 1%.
2. The high pressure rock drilling speed is fast, and the drilling speed is 0.2 m~0.3 m per minute.

Drilling adaptability:
1.The rack and pinion cylinder is used for the rotation of the drill frame, which has large torque and reliable positioning, makes All-round rock drilling possible. 
2.Stable and reliable support mechanism (secondary supporter, main supporter p, outrigger) to ensure the accuracy of drilling. 
3.The stope height shall not be less than 3.2 meters, not higher than 3.6 meters, and the width of the roadway shall not be less than 2.6 meters.

Operation performance:
1.The hydraulic rod disassembly system reduces the labor intensity of the operator and saves the auxiliary operation time. 
2.Rock drilling operation and drilling positioning operation can be completed on the mobile console, which can realize long-distance and multi-directional operation.