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Application Range
It can be widely used in drilling for grouting holes in projects such as cofferdam, foundation and geothermal well and etc.
Working Principles
As water or compressed air for medium, the discharge head make the casing tube and drill rod rotate and penetrate.
Structure
With inner drill rods With inner hammer
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| Ring BIt |
| A |
B |
C |
|
|
| Outer Dia of Casing Tube |
Bore Hole Dia. |
Thread(mm) |
Buttons Qty.x Dia.(mm) |
Weight |
| mm |
mm |
Dia.(mm) |
No. |
Pitch(mm) |
Outer |
Inner |
Shape |
kg |
| 118 |
125 |
104.2 |
2 |
11.28 |
6x12 |
3x12+3x12 |
ballistic |
7.0 |
| 133 |
142 |
122.0 |
3 |
11.28 |
8x12 |
4x12+4x11 |
ballistic |
7.5 |
| 146 |
455 |
134.0 |
3 |
11.28 |
8x12 |
4x12+4x12 |
ballistic |
8.0 |
| 168 |
175 |
151.8 |
3 |
12.00 |
8x14 |
4x14+4x14 |
ballistic |
10.5 |
| Inner BIt |
| D |
E |
F |
|
| Drill Rod Dia. |
Drill Bit Dia |
Thread(mm) |
Buttons Qty.x Dia.(mm) |
Weight |
| mm |
mm |
Type |
Pitch(mm) |
Gauge |
Front |
Shape |
kg |
| 73 |
80 |
R56 |
12.70 |
8x13 |
4x13 |
semi-ballistic |
4.5 |
| 73 |
102 |
R56 |
12.70 |
8x14 |
6x14 |
spike |
5.0 |
| 73 |
110 |
R56 |
12.70 |
8x14 |
6x14 |
semi-ballistic |
6.0 |
| 73 |
122 |
R56 |
12.70 |
8x16 |
7x14 |
semi-ballistic |
7.0 |
Order Guide:1.A+B+C 2.D+E+F
|
