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.
