Down the Hole Drilling

If you want to buy a down the hole drilling, you can read this article to find details about DTH drilling or hammer machines.

 

Down the hole hammer drill rig for sale

 

DTH drilling rigs use impactors and drill bits that are submerged into the bottom of the hole to impact and crush the rock. Therefore, they are called down the hole drilling. It is suitable for large-diameter blast hole drilling operations in small and medium-sized mines, road construction, water conservancy, and stone works, as well as for drilling bolt holes in slope support, tunnel support, and foundation pit support. The main drilling object is a rock formation. Contact us to get the DTH rock drilling equipment price right now.

DTH drilling machine quote

 

YG Machinery provides you with the most common types of drilling rigs, for example, water well drilling machine, core drilling rig machine, anchor drilling machine, rotary drilling machine. If you want to get the down-the-hole hammer drill rig price, you can click the button above to get more information.

Down the Hole Drilling
Down the Hole Drilling

Portable DTH Drilling Rig
Portable DTH Drilling Rig

 Parameters of Small Outrigger Type DTH Drill Rig

Model YGD70/YGD80 YGD100 YGQ100 YGB100-4/YGB120-5.5
Drilling Diameter 50-90mm/90-120mm 90-130mm 90-130mm 90-130mm
Apply Rock ≥20 ≥20 ≥20 ≥20
Drilling Depth 15m ≥25m ≥25m ≥30m-40m
Drilling rotate speed 110r/min 110r/min 110r/min 110r/min
Working air pressure 0.5-0.7Mpa 0.5-1.0Mpa 0.5-1.0Mpa 0.5-1.0Mpa
Air consumption 4m³/min 6m³/min 12m³/min 10m³/min
Cylinder Diameter 90mm 140mm 140mm 140mm
Propulsion Stroke 1070mm 1070mm 1070mm 1070mm
Max propelled force 3600N/8000N 9600N 9600N 9600N
Electric motor power 3KW/4KW 4KW / 4KW/5.5KW
Electric motor voltage 380V 380V / 380V
Rated speed 1440r/min 1440r/min 3200r/min 1440r/min
Drilling rod OD 42mm 50-60mm 50-60mm 60mm
Drilling rod length 1025mm 1025mm 1025mm 1025mm
Dimension 1740*260*420mm 2280*440*550mm 2230*380*550mm 2230*380*550mm
Weight 280/320KG 470KG 450KG 460/480KG

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Classification of DTH drilling rigs:

  1. According to the different use environments, it is divided into two categories: open-air down the hole drilling rig and underground down the hole drilling rig.
  2. According to the way of walking, it can be divided into small outrigger type DTH drilling machine and crawler type DTH drilling machine.
  3. According to the working mode, it can be divided into pneumatic and electric linkage, fully hydraulic, and full pneumatic.
  4. According to the power configuration of the drilling rig, it can be divided into diesel-powered down the hole drilling rig, diesel-electric dual-purpose down the hole drilling rig, electric down-the-hole drilling rig (need to be customized).
  5. According to the different hole diameters, it can be divided into light DTH drilling rig (with a hole diameter of 70-120mm), medium-size DTH drilling rig (with a hole diameter of 150mm), heavy-duty DTH drilling rig (with a hole diameter of 200mm), and extra heavy DTH drilling rig (the hole diameter is 250mm).
Small DTH Drilling Rig
Small DTH Drilling Rig

Small Outrigger Type DTH Drill Rig
Small Outrigger Type DTH Drill Rig

YG Machinery is a professional manufacturer of dth hammer drilling tools. What kind of down-the-hole hammer drilling equipment do you need? Click here to get the DTH hammer price.

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Working Principle of Down the Hole Drilling:

The working principle of the down-the-hole hammer drill rig is the same as other rock drilling rigs. It has the process of rock drilling and hole formation such as impact, rotation, ballasting, and advancement, and it belongs to percussion rotary drilling. The difference is that the impactor of the down-the-hole drill is installed at the front end of the drill rod, submerged into the bottom of the hole, and continues to advance as the drilling extends.

DTH Drilling Dig
DTH Drilling Dig

DTH Drilling Machine
DTH Drilling Machine

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Crawler & diesel-powered DTH Drilling Rig for sale

Here are the details about the Crawler DTH Hammer Drilling.

Parameters of Crawler DTH Drilling Rig

Model YGL130 (diesel engine and electric engine) YGM150T (diesel engine) YGM153 (diesel engine and electric engine)
Drilling diameter φ83-φ130mm φ90-φ150mm φ83-φ165mm
Drilling depth 30m 30m 30m
Rock Hardness f=6~20 f=6~20 f=6~20
Travelling Speed 2.5km/h 2.5km/h 2.5km/h
Climbing ability 30º 30º 30º
Electric System 24V 24V 24V
Power type Diesel engine+ electric engine Diesel engine Diesel engine+ electric engine
Diesel tank capacity 70(L) 70(L) 70(L)
Oil tank capacity 109(L) 148(L) 155(L)
Total machine weight 3.7t 5.2t 5.8t

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Product Features of DTH Drilling Rig

  1. Fast footage, flexible movement, and convenient operation, a high degree of mechanization, and less auxiliary operation time, which improve the operation rate of the drilling rig.
  2. The impactor directly acts on the drill bit, and the impact energy loss does not increase with the lengthening of the drill rod. Deep holes with large diameters can be drilled, and the drilling speed is not affected by the hole depth.
  3. Environmental protection and energy saving, because the impact is carried out at the bottom of the hole, the noise during work is greatly reduced.
  4. The floating chassis is more mobile and flexible, with strong climbing ability, and more suitable for rugged field operations.
  5. It can drill medium-hard or above-medium-hard rocks (f≥8).
  6. Good adaptability. Except for very soft formations, the down-the-hole drills are in the best working condition in all rock structures, and the drilled hole diameter and hole depth are more than top hammer rock drills.
DTH Drilling Rig Application
DTH Drilling Rig Application

DTH Drilling Rig Construction Site
DTH Drilling Rig Construction Site

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How does a Down-the-Hole Drilling Rig Work?

Down the hole drilling is the use of an impactor and a drill bit that submerge into the bottom of the hole to impact and crush the rock. Small in size and light in weight, it is suitable for places where large and medium-sized drilling rigs cannot be operated and is convenient and flexible. The down the hole drilling rig uses electric energy as power, with low noise and strong power.

The drilling speed is 3-8 times that of general rock drills, the rock hardness reaches 9 and the drilling depth is 8-16 meters per hour. DTH drilling rig is suitable for drilling large-diameter blast holes in small and medium-sized mines, road construction, water conservancy, and stone works, as well as drilling bolt holes in slope support, tunnel support, and foundation pit support. The main drilling object is the rock formation.

Conclusion

YG Machinery is a top supplier of machinery. Besides a variety of drilling rigs for sale, YG Machinery provides also wet wipes machine, UVC disinfection robot, disinfection door, dust suppression cannon, road marking machine, mini road roller, asphalt crack filler machine, small asphalt milling machine, cement sprayer machine, sandblasting equipment for sale, rock splitter machine, pile breaker machine, etc.

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