BR Series Middle Low Air Pressure DTH Hammers Model BR1 BR2 BR3 With Fast Drilling Speed
BR Series Middle Low Air Pressure DTH Hammers With Model BR1 BR2 BR3
BR Series Middle Low Air Pressure DTH Hammer With Foot Valve Specification:
| Description | Weight(kg) | ||
| BR1 | BR2 | BR3 | |
| 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 | |||
| 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 | |
| 1.4Mpa: 3 m³/ min | 1.4Mpa: 5 m³/ min | 1.4Mpa: 8 m³/ min | |
BR DTH Hammer Features:
1. The operating air pressure is between 0.7 MPa and 1.75 MPa.
2. Valveless hammers.
3. Simple structure, easy to assemble and to disassemble, long life span.
4. Higher impact frequency and faster drilling speed.
5. Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6. Especially suitable for quarrying.
BR1 BR2 BR3 Middle - Low Air Pressure DTH Hammer Applications
1. Underground mining
2. Quarry benching operations
3. Water well drilling
BR DTH Hammer Advantage:
BR1, BR2, BR3 series DTH hammers are designed to operate efficiently at low air pressures and medium air pressures, using BR series bits.
BR DTH Hammer Photo:
Factory
Rock Drilling Tools Brand MIROC®
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials.
MIROC® Rock Drilling Tools are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.
MIROC® Rock Drilling Tools include:
- Integral Rods
- Plug Hole Rods
- Tapered Drilling Tools
- Extension Drilling Tools
- Drifting and Tunneling Tools
- Reaming Tools
- Shank Rods
- Shank Adapters (Striking Bars)
- Down-the-hole (DTH) Bits
- Down-the-hole (DTH) Hammer
- PDC Bit
- Tricone Bits
Company
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high-quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’drilling needs and have the service skills to recommend the right drilling tools for the job.
Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven to perform beyond industry expectations.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.