QL95
Customized
JIS, AISI, API
Stub-length
Twist Drill Bit
Tungsten Carbide
Wood Drilling, Well Drilling, Metal Drilling, Masonry Drilling
Mining
HJG
China
84123100
Product Description
It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency.
The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency.
The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
| Length(exclude bit) | Weight(exclude bit) | External Diameter | Bit Shank | Hole Range | Connection Thread | |
| 1340 mm | 203.00 kg | Φ203 mm | QL95 | Φ216mm _ Φ254mm | API 4 1/2'' Reg | |
| Working Pressure | Impact rate at 0.5 MPa | Recommended Rotary Speed | Air Consumption | |||
| 1.0 MPa | 1.8 MPa | 2.4 MPa | ||||
| 1.0 - 2.5 MPa | 22 Hz | 15-25 rpm | 16 m³/min | 28 m³/min | 39 m³/min | |
