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. DTH drilling rigs have always been the best-selling machinery of YG Machinery. In addition, there are rock drills, portable water well drilling rigs, backpack drilling rigs, truck-mounted water well drilling rigs, crawler drilling rigs, etc. Please contact us for the latest prices!【WhatsApp/WeChat/Phone/Skype】+86 136 1385 6800
Types of Down the Hole Drilling Rigs for Sale
Roll Column
The 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, an impactor. The front end is directly connected to the drill bit and the back end is connected to 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 spot 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.
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
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
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
FY Series 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 |
XYD Series Crawler 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 | |
Portable DTH Drilling Rig:
According to the walking mode, it can be divided into small-legged down-the-hole drilling rig machines: SKD70-100-120, SKQ70-100-120, and large crawler type down-the-hole drilling rig machines: SKL100T 130/ SKM150T 153/SKH320. According to the working power, it is divided into gas-electric linkage and full-pneumatic. Wind pressure 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 an email from the inquiry button for a quotation.
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
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
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
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
The Principle of Use DTH Drilling Rig Installation and Preparation:
- 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.
- Lead the air-water pipe and lighting circuit to the working face for later use.
- 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 the desired angle. Then the whole direction of the drill shall be adjusted.
Check Before Working:
- When starting work, carefully check whether the gas-water pipeline is firmly connected and whether there is no leakage phenomenon.
- Check whether the oil injector is full of oil.
- Check whether the screws, nuts, joints and other parts of each part have been tightened and whether the column is pushed firmly.
Drilling Operation Program:
When opening the hole, start the motor first and push the handle of the manipulator after the transfer is expected. 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.
6 Characteristics of Down the Hole Drilling Rig:
- The impact energy loss does not increase with the lengthening of the drill rod, the deep hole of a large diameter can be drilled.
- The noise of the working face is greatly reduced.
- 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.
- Mobile and flexible.
- The quality of the drilling is high.
- A rock that can be drilled medium or hard medium( f≥8 ).