DHD380 Water Well Drilling Tools Down The Hole Hammer and Button Bit

Brand Name:MIROC
Certification:API
Model Number:DHD380 DTH hammer and bit
Minimum Order Quantity:1 piece
Delivery Time:1-20 days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location: Beijing Beijing China
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
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Product Details

DHD380 Water Well Drilling Tools Down The Hole Hammer and Button Bit


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


Applications of DTH Bit

• Underground mining
• Tunneling

Quarry benching operations


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

Specification of DTH Bits

Product

Code

Flushing

Holes

Diameter

(mm)

Weight

(kg)

Gauge Buttons

( No.x mm)

Front Buttons

( No. x mm)

DTH65PQ

1

68 - 72

1.5

4 x12

3 x 12

DTH75PQ

3

75 - 77

2.4

5 x 12

3 x 12

DTH76PQ

2

76 - 78

2.5

5 x 12

3 x 12

DTH76-78

2

78 - 82

2.6

5 x 12

3 x 12

DTH80PQ

3

82 - 84

3

5 x 12

6 x 12

DTH90A

3

90 - 95

3.6

6 x 14

4 x 12

DTH80XD-90

3

90 - 95

3.4

6 x 12

4 x 12

DTH80-II-80

3

80 - 82

3

5 x 12

4 x 12

DTH90B

3

90 - 95

3.8

6 x 14

4 x 12

DTH90T1

2

90 - 95

3.6

6 x 14

1 x 12, 3 x 12

DTH90T2

2

90 - 95

3.8

6 x 14

4 x 12

DTH90T3J

3

90 - 95

3.6

6 x 14

4 x 12


Technical Manual of DTH Hammer

Low Pressure DTH Hammer

Product Code

Length

External

Diameter

Working

Pressure

Air

Consumption

Torque

Impact

Frequency

(mm)(mm)(Mpa)(m3/min)(N.m)(n/min)

1

DTH65B

745

ø61.2

0.5 - 0.7

2.5

51

≥810

2

DTH70

803

ø67.2

0.5 - 0.7

3

70

≥810

3

DTH76

766

ø67.2

0.5 - 0.7

3

75

≥810

4

DTH80

796

ø72

0.5 - 0.7

5

81

≥800

5

DTH80-II

756

ø67

0.5 - 0.7

3

75

≥810

High Pressure DTH Hammer

Product Code

Length

External

Diameter

Working

Pressure

Air

Consumption

Torque

Impact

Frequency

(mm)(mm)(Mpa)(m3/min)(N.m)(n/min)

1

DTH330

867

ø71

0.8 - 2.1

3 - 12

150

≥800

2

DTH335

908

ø81

0.8 - 2.1

4.3 - 14.2

205

950 - 1500

3

DTH340

1052

ø92

0.8 - 2.1

3.5 - 18

304

≥800

4

DTH345

1034

ø98

0.8 - 2.1

3.5 - 15

335

≥800

5

DTH345K

994

ø98

0.8 - 2.1

3.5 - 15

400

≥820

6

DTH350

1387

ø114

0.8 - 2.1

5.7 - 18

590

810 - 1470

7

DTH355

1220

ø124

0.8 - 2.1

6.5 - 18

700

810 - 1500

Through Reverse Circulation DTH Hammer

Product Code

Length

External

Diameter

Working

Pressure

Air Consumption

Torque

Impact

Frequency

(mm)(mm)(Mpa)(m3/min)(N.m)(n/min)

1

DTHF335

1143

ø85

0.7 - 2.1

4.2 - 11.7

475

≥800

2

DTHF345

1281

ø105

0.7 - 2.1

5.7 - 14.2

600

≥800

3

DTHF355

1292

ø124

0.8 - 2.1

6.5 - 19.3

791

810 - 1200

4

DTHF365

1345

ø154

0.8 - 2.1

9 - 18

950

600 - 1100

5

DTHF385

1578

ø190

0.8 - 2.1

12 - 30.8

1040

660 - 1208

6

DTHF3105

1440

ø250

0.8 - 2.4

15 - 34

1260

600 - 1230

7

DTHF3125

1430

ø270

0.8 - 2.4

20 - 37.8

1250

600 - 1150




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DHD380 Water Well Drilling Tools Down The Hole Hammer and Button Bit

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