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Down the Hole Drilling Rig

DTH Drilling Machine in Yugong Machinery
                                                    Different Types of DTH Drilling Machine in Yugong Machinery

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The essence of down the hole drilling rig is to make the impactor dive into the hole in the process of rock drilling to reduce the energy loss caused by the transmission of the impact energy transmitted by the drill rod, thereby reducing the influence of the hole depth on the rock drilling efficiency.

Types of Down the Hole Drilling Rig for Sale

According to the walking mode, it can be divided into small legged down the hole drilling rig machine: SKD70-100-120, SKQ70-100-120, and large crawler type down the hole drilling rig machine: SKL100T 130/ SKM150T 153/SKH320. According to the working power, it is divided into gas-electric linkage and full-pneumatic. According to the wind pressure, it can be divided into low pressure, medium pressure and high wind pressure. According to the hydraulic power configuration of the drilling rig machine, it can be divided into diesel, diesel and electric dual-use and electric. If you are interested in our deep hole drilling machine, you can send us email from the inquiry button for quotation.

SKD-70 DTH Drilling Rig Hot Sale
SKD-70 DTH Drilling Rig

Model: SKD-70
Drilling Hole Diameter: 50-90mm
Drilling Depth: 15m
Drilling Speed: 110r/min
Working Air Pressure: 0.5-0.7mpa
Air Consumption: 4m3/min
Cylinder Diameter: 90mm
Max. Propelled Force: 8000N
Drilling Rod OD: 42mm
Drilling Rod Length: 1025mm
Dimension: 1740*260*420mm
Weight: 280kg

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SKD-100 DTH Drilling Rig for Sale
SKD-100 DTH Drilling Rig

Model: SKD-100
Drilling Hole Diameter: 90-130mm
Drilling Depth: 0-25m
Drilling Speed: 110r/min
Working Air Pressure: 0.5-1.0mpa
Air Consumption: 6m3/min
Cylinder Diameter: 140mm
Max. Propelled Force: 9600N
Drilling Rod OD: 50-60mm
Drilling Rod Length: 1025mm
Dimension: 2280*440*550mm
Weight: 470kg

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SKQ-100 DTH Drilling Rig for Sale
SKQ-100 DTH Drilling Rig

Model: SKQ-100
Drilling Hole Diameter: 90-130mm
Drilling Depth: 0-25m
Drilling Speed: 110r/min
Working Air Pressure: 0.5-1.0mpa
Air Consumption: 12m3/min
Cylinder Diameter: 140mm
Max. Propelled Force: 9600N
Drilling Rod OD: 50-60mm
Drilling Rod Length: 1025mm
Dimension: 2230*380*550mm
Weight: 450kg

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SKB120-5.5 DTH Core Drilling Rig for Sale
SKB120-5.5 DTH Core Drilling Rig

Model: SKB120-5.5
Drilling Hole Diameter: 90-130mm
Drilling Depth: 0-40m
Drilling Speed: 110r/min
Working Air Pressure: 0.5-1.0mpa
Air Consumption: 10m3/min
Cylinder Diameter: 140mm
Max. Propelled Force: 9600N
Drilling Rod OD: 60mm
Drilling Rod Length: 1025mm
Dimension: 2230*380*550mm
Weight: 480kg

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Roll Column

Down the hole drilling rig is an impact rotary drilling rig. Its internal structure is different from that of a general rock drilling machine. Its gad distribution and piston reciprocating mechanism are independent, that is, an impactor. The front end is directly connected with the drill bit and the back end is connected with the drill pipe. During rock drilling, the impactor sneaked into the hole and the piston (hammer) in the impactor reciprocates against the shank through the gas distribution device (valve), so that the drill bit impacts the rock at the bottom of the hole. The high speed rotation of the impactor in the hole is realized by means of a single rotary mechanism, that is, a motor outside the hole or a pneumatic rotating device, which is connected to the drill pipe at the back of the impactor. The power of the rock produced during drilling is washed out of the hole by the air-water mixture, which is injected into the impactor through the center of the drill pipe by the power exhausting mechanism and then enters the bottom of the hole through the air through on the cylinder body of the impactor.

SKL-100T Crawler DTH Drilling Rig for Sale
SKL-100T Crawler DTH Drilling Rig

Model: SKL-100T
Applicable Rock: F=6-20
Opening Hole Diameter: 83-130mm
Drilling Depth: 30m
Walking Speed: 2.5km/h
Climbing Angle: 300
Rotating Speed: 0-90r/min
Max. Lifting Force: 15KN
Working Pressure: 0.5-1.4Mpa
Air Consumption: 7-12m3/min
Diesel Motor Power: 33kw
Dimension: 4400*1980*2260mm
Weight: 3.5t

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SKM-150T DTH Drilling Rig for Sale
SKM-150T DTH Drilling Rig

Model: SKM-150T
Applicable Rock: F=6-18
Opening Hole Diameter: 90-140mm
Drilling Depth: 30m
Drilling Speed: 1.75m/min
Walking Speed: 2.5km/h
Climbing Angle: 280
Rotating Speed: 0-90r/min
Max. Lifting Force: 28000KN
Diesel Motor Power: 60/73kw
Dimension: 6500*2230*2380mm
Weight: 5.8t

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SKM-153 DTH Drilling Rig for Sale
SKM-153 DTH Drilling Rig

Model: SKM-153
Applicable Rock: F=6-20
Opening Hole Diameter: 90-180mm
Drilling Depth: 30m
Walking Speed: 2.5km/h
Climbing Angle: 300
Air Consumption: 9-14m3/min
Diesel Motor Power: 56/45kw
Dimension: 4400*2200*2050mm
Weight: 5.2t

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FY Series DTH Drilling Rig Hot Sale
FY Series DTH Drilling Rig

Crawler DTH Drilling Rig Hot Sale
Crawler DTH Drilling Rig

Model FY180 FY200 FY260 FY300 FY400 FY600
Total Weight(kg) 3800 4600 6200 8800 8700 12000
Dimension(mm) 3800*1550*2350 3800*1600*2450 3900*1950*2550 4350*1850*2750 5050*2100*2800 5400*2100*2850
Hole diameter (mm) 130-254 140-325 140-325 180-325 140-325 140-350
Hole depth (m) 180 200 260 300 400 600
Disposable drilling depth (mm) 3000 3000 3000 6000 6000 6600
Walking speed (km / h) 2.5 2.5 2.5 2 2.5 2.5
Climbing ability (Max.) 30 30 30 30 30 30
Distance off ground (mm) 250 250 250 250 250 250
Working pressure (Mpa) 1.7-2.5 1.7-3.0 1.7-3.0 1.7-3.3 1.7-3.0 1.7-3.5
Air consumption (m3 / min) 15-27 17-35 17-35 23 17-35 17-35
Matching power (kw) 42-65 65 85 85 95 115
Rotational speed (rpm) 48-70 50-70 40-70 55-115 45-75 45-110
Rotational torque (N.M) 4200-5600 5000-6500 7000-9000 7200-8500 8500-10000 8500-10500

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XYD Series DTH Crawler Drilling Rig for Sale
XYD Series DTH Crawler Drilling Rig

XYD Series DTH Drilling Rig for Sale
XYD Series DTH Drilling Rig

Model XYD-130 XYD-180 XYD-200
Drilling Depth (m) 130 180 200
Open Drilling Diameter (mm) 220 220 325
Final Hole Diameter (mm) 75 75 75
Drill Pipe Diameter (mm) 42-60 42-60 42-60
Drill Pipe Inclination (°) 90-75 90-75 90-75
Power (kw) 13.2 13.2 15
Weight (kg) 3350 3400 3600
Dimensions (mm) 3800*1950*2700 3800*1950*2700 3800*1950*2700
Vertical Shaft
Vertical Axis Speed (r/min) 142 285 570 130 300 480 730 830 1045 64 128 287 557
Vertical Axis Travel (mm) 450 450 450
Crawler Chassis
Crawler size 350*90*48mm 350*90*48mm 350*90*48mm
Crawler angle(°) 20 20 20
Moving speed(km/h) 10 10 10
Landing leg height(mm) 1300 1300 1300
Drill Mast
Rated Load(t) 18 18 18
Effective Height 6.5 6.5 6.5
Tower Specifications (mm) 73 73 73
Mud Pump
Model 160L/min 160L/min 160L/min
Max Pressure (Mpa) 1.3 1.3 1.3
Reciprocations No. (times/min) 165 165 165
Suction Pipe Diameter Φ51mm*4.5m 51mm 51mm
High-Pressure Pipe Diameter Φ32mm*6m 32mm 32mm

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The Principle of Use DTH Drilling Rig Installation and Preparation

1.Prepare for the drilling of a rock cavern, the size of the cavern can be determined according to the method of drilling. Generally, when the horizontal hole is drilled, the height of the cavern is 2.6-2.8m. The width of the cavern is 2.5m in the case of the upper hole, the downward hole or the inclined hole and the height is 2.8m.
2.Lead the air water pipe and lighting circuit to the working face for later use.
3.According to the requirements of the design of the hole, the pillars are erected firmly. The upper and lower ends of the pillars are to be covered with wooden boards. The horizontal shaft and the snap ring are mounted on the pillars according to a certain height and direction. The machine is lifted by a hand winch, fixed on the pillars at a desired angle. And then the hole direction of the drill shall be adjusted.

Check Before Working

1.When starting work, carefully check whether the gas-water pipeline is firmly connected and there is no leakage phenomenon.
2.Check whether the oil injector is full of oil.
3.Check whether the screws, nuts, joints and other parts of each part have been tightened, and whether the column is really pushed firmly.

Drilling Operation Program

When opening the hole, start the motor first and push the handle of the manipulator after the transfer is normal. Make it get the proper propulsion, and then pull the handle of the control impactor to the working position. After rock drilling, the water valve can be opened to keep the gas-water mixture at an appropriate ratio. Perform normal rock drilling rock. When the advancement work causes the mast to move into contact with the holder, a drill rod is drilled. To stop the motor running and stop supplying air to the impactor, send water, insert the fork into the drill rod groove of the holder, make the motor reverse the slide back, disconnect the joint from the drill rod, and then connect the second drill rod, press this to cycle and work continuously.

Characteristic of Down the Hole Drilling Machine

1.The impact energy loss does not increase with the lengthening of the drill rod, the deep hole of the large diameter can be drilled.
2.The noise of the working face is greatly reduced.
3.The drilling speed is fast, the mechanization degree is high, the auxiliary working time is less and the working rate of the drilling rig is improved.
4.Mobile and flexible.
5.The quality of the drilling is high.
6.A rock that can be drilled medium or hard medium( f≥8 ).

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