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Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure DTH Hammer
Bestlink
BR1,BR2,BR3 series Bulroc DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series DTH bits.
The main features are as follows:
1. The operating air pressure are between 0.7Mpa and 1.75Mpa.
2. Valveless hammers.
3. Simple structure, easy to assemble and to disassemble, long life.
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 cutting discharge.
6. Especially suitable for quarrying.
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 760mm | 10.00kg | Φ54mm | BR1 | Φ64-Φ76 | RD40 BOX | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 27Hz | 25-40r/min | 1.5m3/min | 2.5m3/min | 3.0m3/min | |
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 880mm | 14.50kg | Φ62mm | BR2 | Φ70-Φ90 | RD50 BOX | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 25Hz | 25-40r/min | 2.5m3/min | 4.0m3/min | 5.0m3/min | |
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 889mm | 26.00kg | Φ82mm | BR3 | Φ90-Φ110 | API 2 3/8" Reg | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 25Hz | 25-40r/min | 4.0m3/min | 6.0m3/min | 8.0m3/min | |
BR1,BR2,BR3 series Bulroc DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series DTH bits.
The main features are as follows:
1. The operating air pressure are between 0.7Mpa and 1.75Mpa.
2. Valveless hammers.
3. Simple structure, easy to assemble and to disassemble, long life.
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 cutting discharge.
6. Especially suitable for quarrying.
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 760mm | 10.00kg | Φ54mm | BR1 | Φ64-Φ76 | RD40 BOX | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 27Hz | 25-40r/min | 1.5m3/min | 2.5m3/min | 3.0m3/min | |
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 880mm | 14.50kg | Φ62mm | BR2 | Φ70-Φ90 | RD50 BOX | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 25Hz | 25-40r/min | 2.5m3/min | 4.0m3/min | 5.0m3/min | |
| Length (no bit) | Weight (no bit) | External diameter | Bit shank | Hole range | Connection thread | |
| 889mm | 26.00kg | Φ82mm | BR3 | Φ90-Φ110 | API 2 3/8" Reg | |
| Working Pressure | Impact rate at 1.4MPa | Recommended rotation speed | Air consumption | |||
| 0.7MPa | 1.0MPa | 1.4MPa | ||||
| 0.7-1.75MPa | 25Hz | 25-40r/min | 4.0m3/min | 6.0m3/min | 8.0m3/min | |
