Diamond DTH Bit

  • Bit Type: Concave Face, Convex Face, Flat face
  • DTH Bit Inserts Type: PDC Dome/Round Insert, PDC Dome/Round Insert, PDC Flat Insert
  • Applications: mainly used in underground mine mining, open-pit mining, blast furnace opening of steel plant, secondary crushing of mines, tunneling and other fields.
  • Advantages: 1.The hardness and toughness of the bit are increased by 30% by using diamond PDC buttons.
    2. Unique design, drilling speed is increased by 20%, life increased by more than 30%.
    3. The imported high-grade steel is selected as the bit body to ensur

Diamond Tools

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Polycrystalline diamond compact (PDC cutter)
Diamond grinding tools
Diamond polishing pads
Diamond Core Drill Bits
Diamond Wire Saw Rope
  • Product details
  • parameter
DTH bit is the key part of DTH drilling, and it is also one of the main consumption parts. The PCD inserts of Changsha 3Better DTH hammer bits have the excellent characteristics of high wear resistance, strong impact resistance, high thermal conductivity, etc. The bit body is specially designed and processed. According to different geological conditions, Changsha 3Better adopts PDC cutters with different performance requirements to achieve application optimization. Compared with traditional tungsten carbide DTH bits, diamond DTH bits have the advantages of increased footage, high drilling efficiency and low cost, so it is an ideal bit for medium-hard rocks.


Diamond DTH Bit Types

1. Concave Face 

 

This bit face is specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.

 

2. Convex Face 

 

This face is for high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to bit body, and may reduce the load and wear on gauge inserts, but poor hole deviation control.


 

3. Flat face

 

This kind of face sharp is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates a resistance to bit body.



Compared with traditional carbide DTH Bit, Diamond DTH Bits have the following advantages:


1. The service life of the Diamond DTH Bit is increased by more than 6 times;
2. The overall tool cost of the operation decreased by more than 30%;
3. The production efficiency of the operation is increased by more than 20%;
4. It can better maintain the quality of the well hole;
5. Make the target application that was impossible to complete once become possible;
6. Reduce the frequency of tool replacement and reduce the labour intensity of workers.

 

 

Diamond DTH bit & Tungsten Carbide DTH bit Footage Efficiency and Service Life Comparison






 

 

Shank style

Diameter in mm

NO. Air Holes

Gauge PDC Buttons

Front PDC Buttons

Approx. weight

Part number

DHD3.5

85

2

6*φ13

4*φ12

5.0 kg

DHD3.5-85

90

2

6*φ14

4*φ12

5.8 kg

DHD3.5-90

95

2

6*φ14

5*φ12

5.9 kg

DHD3.5-95

100

2

6*φ14

6*φ12

6.1 kg

DHD3.5-100

105

2

8*φ13

6*φ12

6.3 kg

DHD3.5-105

DHD340

105

2

6*φ14

5*φ13

8.6 kg

DHD340 -105

110

2

7*φ14

6*φ13

8.8 kg

DHD340-110

115

2

7*φ14

7*φ13

9.0 kg

DHD340-115

120

2

8*φ14

7*φ13

9.5 kg

DHD340-120

127

2

8*φ14

7*φ14

9.9 kg

DHD340-127

DHD350

133

2

7*φ16

7*φ14

15.0 kg

DHD350-135

140

2

7*φ19

7*φ14

16.5 kg

DHD350-140

146

2

8*φ19

7*φ14

17.0 kg

DHD350-146

152

2

8*φ19

8*φ14

17.8 kg

DHD350-152

165

2

8*φ19

8*φ16

18.5 kg

DHD350-165

DHD360

152

2

8*φ19

8*φ16

23.3 kg

DHD360-152

165

2

8*φ19

8*φ16

25.2 kg

DHD360-165

171

2

8*φ19

10*φ16

25.8 kg

DHD360-171

190

2

10*φ19

12*φ16

28.5 kg

DHD360-190

203

2

10*φ19

14*φ16

29.5 kg

DHD360-203

DHD380

203

2

10*φ19

14*φ16

48.1 kg

DHD380-203

216

2

10*φ19

14*φ16

52.0 kg

DHD380-216

241

2

12*φ19

18*φ16

58.7 kg

DHD380-241

254

2

12*φ19

21*φ16

60.4 kg

DHD380-254

292

2

12*φ19

21*φ16

80.1 kg

DHD380-292

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