15 Inch DTH Bits

Black Diamond DTH hole openers can provide hole enlargement for various down-the-hole hammer drilling application needs, reasons ranging from drilling rig and equipment capabilities to worksite condition and job specifications. In addition, new diamond hole openers are available in several...

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Product Details

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Black Diamond DTH hole openers can provide hole enlargement for various down-the-hole hammer drilling application needs, reasons ranging from drilling rig and equipment capabilities to worksite condition and job specifications. In addition, new diamond hole openers are available in several different designs, each of which can be best suited to certain applications. This tool is commonly utilized for industrial uses to create very large diameter holes.

new diamond uses only the optimal steel in producing its’ hole openers too, which will give you hour after hour of trouble-free drilling, and with them you will always know that it was produced with the quality you have come to expect for.

In addition, new diamond is also able to work with you to design a new hole opener bit to maximize performance in the ground conditions you are faced with on your job if necessary.

 

It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.

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The characteristics of high air pressure DTH Button Bit:

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and dill pipe manufactured by Atlas copco and Ingersoll-rand.

 

In DTH drilling, the percussion mechanism commonly called the hammer is located directly behind the drill bit. The drill pipes transmit the necessary feed force and rotation to hammer and bit plus compressed air for the hammer and flushing of cuttings. The drill pipes are added to the drill string successively behind the hammer as the hole gets deeper. The piston strikes the impact surface of the bit directly, while the hammer casing gives straight and stable guidance of the drill bit. This means that the impact energy does not have to pass through any joints at all. The impact energy.

Different types of bits depending on the type of soil and the working conditions. The different types of bits are concave, convex and flat. The holes can be drilled ranging from 4 1/2 inch to 32 inch. The way to choose suitable drilling equipment is complicated and a lot of information is required to reach performance and economy in the operation. Aspects that have to be taken into consideration are the purpose of the borehole, geology, hydrogeology pump, method of drilling, flushing media and so on.

 

Product specifications: DHD1120 DTH bits

Drill Bit

Bit Dia.(mm)

NO.Air
Holes

Gauge
Buttons

Front
Buttons

Weight(Kg)

Part No.

DHD1120

305

4

12*Φ18

36*Φ16

152

DHD1120-305

311

4

12*Φ18

36*Φ16

157

DHD1120-311

330

4

16*Φ18

42*Φ16

165

DHD1120-330

356

4

16*Φ19

42*Φ16

178

DHD1120-356

381

4

16*Φ19

42*Φ18

198

DHD1120-381

SD12

305

4

12*Φ18

36*Φ16

156

SD12-305

311

4

12*Φ18

36*Φ16

168

SD12-311

330

4

16*Φ18

42*Φ16

180

SD12-330

356

4

16*Φ19

48*Φ16

191

SD12-356

381

4

16*Φ19

48*Φ18

200

SD12-381

NUMA120

305

4

12*Φ18

36*Φ16

152

N120-305

311

4

12*Φ18

36*Φ16

158

N120-311

330

4

16*Φ18

42*Φ16

165

N120-330

356

4

16*Φ19

48*Φ16

178

N120-356

381

4

16*Φ19

48*Φ18

195

N120-381

NUMA125

305

4

12*Φ18

36*Φ16

170

N120-305

311

4

12*Φ18

36*Φ16

173

N120-311

330

4

16*Φ18

42*Φ16

182

N120-330

356

4

16*Φ19

48*Φ16

191

N120-356

381

4

16*Φ19

48*Φ18

200

N120-381

 

DTH hammer

With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.

It also has the following advantages:

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and drill pipe
 

DTH Bit

DTH bit is our main product. After many years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.

1. high and low air pressure down-the-hole drill bits
2. Low air pressure holeDia.:65-220mm

3. High air pressure hole Dia.:85-305mm

4. Face type: drop center/concave/convex/double gauge/flat

5. Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, QL, SD, Bulroc, Halco Mach, Digger etc.

 

Product photos

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