0.7Mpa-1.75Mpa Middle Low Air Pressure DTH Hammers
0.7Mpa~1.75Mpa Middle-Low Air Pressure DTH Hammers
Features
BR1,BR2 and BR3 series DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series bits.
The main features are as following:
1.The operating air prussure are between 0.7 MPa and 1.75Mpa.
2.Valveless hammers.
3.Simple structure, easy to assemble and to disassenble, long life span.
4.Higher impact frequency and faster drilling speed
5,Lower air consumption and lower oil consumption. A hole can be drilled pn the check valve to provide more efficient cuttings discharged.
6.Especially suitable for quarrying.
| Product name | DTH Hammer |
| Material | Alloy Steel&Tungsten Carbide |
| Use | Underground Mining,Water well,Mining,Quarry etc. |
| Color | Green&Others |
| Heat treatment | Anneal |
| Shank series | DHD,COP,MISSION, SD, DHD, BR, QL, BR,CIR etc. |
| Application | heavy construction,Ore Drilling, mining, oil and gas, quarries |
| Hole | 60-305mm |
| Size | 2/3/4/5/6/7/8/9/10/12/14 inches |
| Advantage | High Performance and factory price |
BR Series Middle Low Air Pressure DTH Hammer Specification:
 |
Description |
Weight(kg) |
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|
BR1 |
BR2 |
BR3 |
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|
1.Top sub |
1.70 |
2.60 |
5.20 |
|
|
2. O Type Ring |
0.10 |
0.10 |
0.10 |
|
|
3. Check Valve |
0.10 |
0.10 |
0.10 |
|
|
4. Spring |
0.05 |
0.05 |
0.20 |
|
|
5. Air Distributor |
0.80 |
0.60 |
0.80 |
|
|
6. Internal cylinder |
0.80 |
0.80 |
1.30 |
|
|
7. Piston |
1.20 |
3.80 |
5.50 |
|
|
8. External Cylinder |
4.00 |
4.50 |
9.50 |
|
|
9. Guide sleeve |
0.15 |
0.60 |
1.00 |
|
|
10. O-ring Of Stop Ring |
0.005 |
0.005 |
0.05 |
|
|
11. Stop Ring |
0.10 |
0.10 |
0.15 |
|
|
12. Drive Chuck |
0.80 |
1.20 |
2.00 |
|
|
13. Drill Bit |
1.70 |
2.50 |
4.00 |
|
|
Technical Data |
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|
Model |
BR1A |
BR2A |
BR3A |
|
|
Length (Without Bit) |
760mm |
880mm |
889mm |
|
|
Weight (Without Bit) |
10.00kg |
14.50kg |
26.00kg |
|
|
External Diameter |
φ54mm |
φ62mm |
φ82mm |
|
|
Bit Shank |
BR1 |
BR2 |
BR3 |
|
|
Hole Range |
φ64 - φ76mm |
φ70- φ90mm |
φ90- φ110mm |
|
|
Connection Thread |
Br40, Box |
Rd50, Box |
API 2 3/8 '' Reg |
|
|
Working Pressure |
1.0 - 1.5 Mpa |
1.0 - 1.5 Mpa |
1.0 - 1.5 Mpa |
|
|
Impact Rate at 17 Bar |
27HZ |
25HZ |
25HZ |
|
|
Recommended Rotation Speed |
25 - 40 r/min |
25 - 40 r/min |
25 - 40 r/min |
|
|
Air Consumption |
0.7Mpa: 1.5 m³/ min |
0.7Mpa: 2.5 m³/ min |
0.7Mpa: 4 m³/ min |
|
|
1.0Mpa: 2.5 m³/ min |
1.0Mpa: 4 m³/ min |
1.0Mpa: 6 m³/ min |
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|
1.4Mpa: 3 m³/ min |
1.4Mpa: 5 m³/ min |
1.4Mpa: 8 m³/ min |
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Applications
1. Underground mining
2. Quarry benching operations
3. Water well drilling
BR DTH Hammer Photo:
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.