3″ High Air-Pressure DTH Hammers without foot valve are compact and efficient drilling tools, designed for creating boreholes in challenging terrains using pressurized air for both hammering and debris removal.
| Replacement Parts | Item Description | Weight Kg |
|---|---|
| 1. Top Sub (Back Head) | 4.20 |
| 2. “O” ring of Top Sub | 0.01 |
| 3. Check Valve (Stop Valve) | 0.20 |
| 4. Spring | 0.02 |
| 5. Compression Buffer (Rubber) | 0.02 |
| 6. Control Tube (Air Distributor) | 1.40 |
| 7. Internal Cylinder (Internal Sleeve) | 1.50 |
| 8. Piston | 5.60 |
| 9. External Cylinder (Outer Sleeve) | 9.40 |
| 10. “O” Ring of Stop Ring | 0.01 |
| 11. Half Moons and Bit Retaing Ring (Stop Ring) | 0.15 |
| 12. Chuck Nut (Drive Chuck) | 1.90 |
| 13. Drill Bit | --- |
| TECHNICAL DATA | |
|---|---|
| Length (Without Bit) | 930mm |
| Weight (Without Bit) | 24.66Kg |
| External Diameter | Ø82mm |
| Bit Shank | DHD 3.5 |
| Hole Range | Ø90-Ø105 |
| Connection Thread | API 2 3/8” Reg |
| Working Pressure | 10-15 Bar 1.0-1.5Mpa |
| Recommeded Rotation Speed | 25-40r/min |
| ADVANTAGES |
|---|
| High performance in hard and soft formations |
| Spares and services locally available |
| Faster drilling speed and lower air consumption |
| Fewer internal parts |
| All parts heat treated |
Available Hammers
2 Inch
3 Inch
4 Inch
5 Inch
6 Inch
8 Inch
10 Inch
12 Inch
24 Inch
2 Inch
3 Inch
4 Inch
5 Inch
6 Inch
8 Inch
10 Inch
12 Inch
24 Inch