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 |
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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. Control Tube (Air Distributor) | 0.80 |
6. Internal Cylinder (Internal Sleeve) | 1.30 |
7. Piston | 5.50 |
8. External Cylinder (Outer Sleeve) | 10.0 |
9. Bit Guide Bush (Guided Sleeve) | 1.00 |
10. “O” Ring of Stop Ring | 0.05 |
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) | 888mm |
Weight (Without Bit) | 25.1Kg |
External Diameter | Ø82mm |
Bit Shank | DHD3.5 (Remove Foot Valve) |
Hole Range | Ø90-Ø105 |
Connection Thread | API 2 3/8” Reg |
Working Pressure | 1.0-1.5Mpa |
Recommeded Rotation Speed | 25-40r/min |
ADVANTAGES |
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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