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DTH380 1550mm Low Air Pressure / High Air Pressure DTH Hammers and Bits

Categories DTH Hammers
Brand Name: MIROC
Model Number: DTH380, length 1550mm, thread API 4 1/2"
Certification: API
Place of Origin: Shan Dong China(Mainland)
MOQ: 1 piece
Price: USD 50-1600 pieces
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 8000 pieces per month
Delivery Time: 1-15 days
Packaging Details: Carton or Wooden Box
Type: Drill bit, dth hammer
Material: Tungsten Carbide And High Strength Alloy Steel
Processing: CNC milling and proprietary heat treatment
Series: CIR, BR, COP,DHD,MISSION,QL,SD,NUMA
Color: Green,blue,golden etc
Impact/min: 860-1510
Bit shank: DHD380-203/216/230/254/310/350
Advantage: Good quality and lower price
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DTH380 1550mm Low Air Pressure / High Air Pressure DTH Hammers and Bits

DTH380 1550mm Low Air Pressure / High Air Pressure DTH Hammers and Bits


In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.

DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

• Medium to large size drilling diameters
• Works in high pressure range, capable of drilling deep hole lengths


Competitive Advantage

• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment


Applications of DTH Bit

• Underground mining
• Tunneling

• Quarry benching operations


Specification of DTH Bits

Low Air Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

CIR80

80

2*12, 2*12

6*13

2

2

CIR90

90

4*12

6*14

3

3

93

4*12

6*14

3

4

95

4*12

6*14

3

3" High Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

DHD3.5 / M30

90

4*12, 2*12

8*12

2

2

95

4*12, 2*12

8*12

2

3

100

4*13, 2*13

8*13

2

4

105

4*14, 2*14

8*14

2

4" High Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

DHD340 / SD4 /

QL40 / M40

110

4*14, 2*14

8*14

2

2

115

4*14, 2*14

8*14

2

3

121

4*14, 2*14

8*14

2

4

127

4*14, 3*14

8*14

2

5

130

4*14, 3*14

8*16

2

6

133

4*14, 3*14

8*16

2

5" High Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

DHD350 / SD5 /

QL50 / M50

130

3*14, 4*14

9*16

2

2

133

3*14, 4*14

9*16

2

3

140

3*16, 4*16

9*16

3

4

146

3*16, 4*16

9*16

3

5

152

3*16, 5*16

9*18

3

6" High Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

DHD360 / SD6 /

QL60 / M60

152

4*16, 4*16

8*18

2

2

155

4*16, 4*16

8*18

2

3

159

4*16, 4*16

8*18

2

4

165

4*16, 4*16

8*18

2

5

172

4*18, 4*18

8*18

2

6

178

4*18, 4*18

8*18

2

7

190

3*18, 5*18

9*18

3

8

203

3*18, 6*18

9*18

3

8" High Pressure DTH Bits


Type

Diameter(mm)

Buttons

Flushing Holes

Front(No*mm)

Gauge(No.*mm)

1

DHD380 / SD8 /

QL80 / M80

200

6*18, 6*18

9*18

3

2

203

6*18, 6*18

9*18

3

3

216

6*18, 6*18

9*18

3

4

219

6*18, 6*18

9*18

3

5

222

6*18, 9*18

9*18

3

6

226

3*18, 5*18

12*18, 6*18

3

7

229

3*18, 5*18

12*18, 6*18

3

8

241

3*18, 5*18

12*18, 6*18

3

9

251

3*18, 6*18

12*18, 6*18

3

10

254

3*18, 7*18

12*18, 6*18

3

11

270

3*18, 8*18

12*18, 6*18

3

12

305

6*18, 8*18

12*18, 9*18

3


Technical Manual of DTH Hammer

Low Pressure

DTH Hammer

Model

Drilling

Diameter

(mm)

Hammer

Length

(mm)

External

Diameter

(mm)

Working

Pressure

(Mpa)

Air

Consumption

(m3/min)

Torque

(N.m)

Impact

Frequency

(n/min)

1

DTH65B

ø68 - 70

745

ø61.2

0.5 - 0.7

2.5

51

≥810

2

DTH70

ø72 - 74

803

ø67.2

0.5 - 0.7

3

70

≥810

3

DTH76

ø74 - 76

766

ø67.2

0.5 - 0.7

3

75

≥810

4

DTH80

ø80 - 82

796

ø72

0.5 - 0.7

5

81

≥800

5

DTH80-II

ø75 - 80

756

ø67

0.5 - 0.7

3

75

≥810

6

DTH80X

ø80 - 82

756

ø72

0.5 - 0.7

4.5

75

≥800

7

DTH80XD

ø80 - 90

735

ø74

0.5 - 0.7

5.5

85

≥800

8

DTH90

ø90 - 130

796

ø80.2

0.5 - 0.7

6

110

≥820

9

DTH90-I

ø90 - 130

796

ø80

0.5 - 0.7

5.5

120

≥820

10

DTH110

ø110 - 150

838

ø98

0.5 - 0.7

11

180

≥830

11

DTH150

ø150 - 185

908

ø137

0.5 - 0.7

17

340

≥800

12

DTH170

ø170 - 250

1023

ø156

0.5 - 0.7

19.5

420

≥790

High Pressure

DTH Hammer

Model

Drilling

Diameter

(mm)

Hammer

Length

(mm)

External

Diameter

(mm)

Working

Pressure

(Mpa)

Air

Consumption

(m3/min)

Torque

(N.m)

Impact

Frequency

(n/min)

1

DTH330

ø82 - 85

867

ø71

0.8 - 2.1

3 - 12

150

≥800

2

DTH335

ø90 - 93

908

ø81

0.8 - 2.1

4.3 - 14.2

205

950 - 1500

3

DTH340

ø105 - 130

1052

ø92

0.8 - 2.1

3.5 - 18

304

≥800

4

DTH345

ø105 - 130

1034

ø98

0.8 - 2.1

3.5 - 15

335

≥800

5

DTH345K

ø110 - 130

994

ø98

0.8 - 2.1

3.5 - 15

400

≥820

6

DTH350

ø130 - 152

1387

ø114

0.8 - 2.1

5.7 - 18

590

810 - 1470

7

DTH355

ø130 - 152

1220

ø124

0.8 - 2.1

6.5 - 18

700

810 - 1500

8

DTH355K

ø130 - 152

1098

ø124

0.8 - 2.1

4.5 - 18

800

840 - 1500

9

DTH360

ø152 - 305

1450

ø136

0.8 - 2.1

8.5 - 25

822

820 - 1475

10

DTH380

ø203 - 350

1551

ø181

0.8 - 2.1

12 - 31

1560

860 - 1510

11

DTH3120

ø302 - 508

1934

ø275

0.8 - 2.1

14 - 45

2410

980 - 1446


Product Tags:

down hole hammer

  

down the hole hammer

  
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