QL series of high pressure wind tunnel DTH hammer
QL series of high pressure wind tunnel DTH hammer without nylon tube
Model：QL4/QL5/QL6/QL8/QL95A
QL series DTH hammer is a kind of high air pressure DTH hammer without foot valve,and it is our newest design.It is also one of the most advanced DTH hammers in the world.
It has following advantages:
1.Out of the trouble of foot valve fracture 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 span,easy and cheap maintenance.
4.Lower air and oil consumption.The oil consumption is about 10% lower than the one with foot valve.
Specifications of QLseries DTH hammer:
QL40 DTH hammer
| Parts | Weight | Part No. | Parts | Weight | Part No. |
| 1.Tub Sub | 8.8 KG | QL40-1 | 8.Piston | 8.8 KG | QL40-8 |
| 2.“O”Ring | 0.01 KG | QL40-2 | 9.Piston Case | 16.5 KG | QL40-9 |
| 3.Check Valve | 0.46 KG | QL40-3 | 10.Guided Sleeve | 0.9 KG | QL40-10 |
| 4.Spring | 0.04 KG | QL40-4 | 11.Retainer Ring | 0.2 KG | QL40-11 |
| 5.Rubber Buffer | 0.2 KG | QL40-5 | 12.“O”Ring | 0.01 KG | QL40-12 |
| 6.Valve Seat | 2.1 KG | QL40-6 | 13.Driver Chuck | 3.3 KG | QL40-13 |
| 7.Inner Cylinder | 2.45KG | QL40-7 | 14.Drill Bit | QL40-14 | |
| Specification of QL40 DTH hammer | |||||
| Length (Less bit) |
Weight | Outer diameter | Connection Thread | Bit Shank | Hole Range |
| 1102mm | 43.7KG | φ99mm | API 2 3/8" REG | QL40 | φ110-135mm |
| Wok Pressure | Recommended rotation speed | Air Consumption | |||
| 1.0Mpa | 1.8Mpa | ||||
| 1.0-2.2 Mpa | 30-60 r/min | 5m3/min | 9m3/min | ||
QL50 DTH hammer:
| Parts | Weight | Part No. | Parts | Weight | Part No. |
| 1.Tub Sub | 8.8 KG | QL50-1 | 8.Piston | 8.8 KG | QL50-8 |
| 2.“O”Ring | 0.01 KG | QL50-2 | 9.Piston Case | 16.5 KG | QL50-9 |
| 3.Check Valve | 0.46 KG | QL50-3 | 10.Guided Sleeve | 0.9 KG | QL50-10 |
| 4.Spring | 0.04 KG | QL50-4 | 11.Retainer Ring | 0.2 KG | QL50-11 |
| 5.Rubber Buffer | 0.2 KG | QL50-5 | 12.“O”Ring | 0.01 KG | QL50-12 |
| 6.Valve Seat | 2.1 KG | QL50-6 | 13.Driver Chuck | 3.3 KG | QL50-13 |
| 7.Inner Cylinder | 2.45KG | QL50-7 | 14.Drill Bit | QL50-14 | |
| Specification of QL50 DTH hammer | |||||
| Length (Less bit) |
Weight | Outer diameter | Connection Thread | Bit Shank | Hole Range |
| 1154mm | 73.5KG | φ126mm | API 2 3/8" REG | QL50 | φ136-155mm |
| Wok Pressure | Recommended rotation speed | Air Consumption | |||
| 1.0Mpa | 1.8Mpa | ||||
| 1.0-2.5 Mpa | 30-60 r/min | 9m3/min | 15m3/min | ||
For Mor information about QL60 QL80, please contact us:
Anna Ling
Mailme