6 Inch QL60 DTH hammer Low Air Consumption And Lower Oil
Consumption
Features:
- Valveless operation to maximize energy output, provide efficient
air utilitzation and reduce service requirements
- Extra air-flow system allows for better hole cleaning in
troublesome holes
- Reversible hardened wear sleeve for optimum wear resistance even in
the most abrasive conditions
- Multi-start threads on back head and chuck ensure easy
coupling/uncoupling of hammer
- Unique internal mount system gives positive make-up and eliminates
the need for wear shims and special assembly tools
- All critical internal components are heat treatedunder strict
control to maximize tool longevity
- An overall cost-effective and user-friendly tool for use in the
most demanding conditions
The Characteristics of High Air Pressure DTH Hammers With Foot
Valve:
It is a kind of valveless high air pressure DTH hammer with foot
valve. It has the following advantages:
The main features are as following:
1. Valveless air distribution, more reliable.
2. Simple design of the piston. Long life span.
3. More efficient energy transfer, faster drilling speed, low air
consumption and lower oil consumption.
4. Fewer internal parts, simple structure, long life span, less
failure and easier to maintain because all the parts are heat
treated.
5. Easy to disassemble because the top sub, the drive chuck and the
external cylinder are connected by multiple steps thread.
QL60 High Air Pressure DTH Hammer With Foot Valve Specification:
| Items | Replacement Parts |
| 1 | Top sub |
| 2 | O-ring of top sub |
| 3 | Breakout Ring |
| 4 | Check Valve |
| 5 | Spring |
| 6 | Compression Buffer |
| 7 | Air Distributor |
| 8 | Internal cylinder |
| 9 | Piston |
| 10 | External cylinder |
| 11 | Guide sleeve |
| 12 | O-ring of stop ring |
| 13 | Stop ring |
| 14 | Breakout ring |
| 15 | Drive chunk |
| 16 | Drill bit |
| Drilling Diameter(mm) | Hammer Length Without Bit(mm) | External Diameter(mm) | Weight Without Bit(kg) |
| φ155-φ190 | 1212 | 142mm, 144mm, 146mm, 148mm | 95 |
| Working Pressure(Mpa) | Air Consumption(m³/min) |
| 1.5-2.5 Mpa | 1.0Mpa: 10 m³/min | 1.8Mpa: 20 m³/min | 2.4Mpa: 28.5 m³/min |
| Impact rate at 17 bar | Recommended Rotation Speed | Connection Rod Thread | Bit Shank |
| 23HZ | 20-30 r/min. | API 3 1/2'' Reg | QL60 |
The Characteristics of High Air Pressure DTH Hammers Without Foot
Valve:
It 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 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 span, easy and cheap
maintenance.
4. Lower air and oil consumption. The oil consumption is about 10%
lower than the one with foot valve.
QL60 High Air Pressure DTH Hammer Without Foot Valve Specification:
| Items | Replacement Parts |
| 1 | Top sub |
| 2 | O-ring of top sub |
| 3 | Breakout Ring |
| 4 | Check Valve |
| 5 | Spring |
| 6 | Air Distributor |
| 7 | Internal cylinder |
| 8 | Piston |
| 9 | External cylinder |
| 10 | Guide sleeve |
| 11 | O-ring of stop ring |
| 12 | Stop ring |
| 13 | Breakout ring |
| 14 | Drive chunk |
| 15 | Drill bit |
QL80 High Air Pressure DTH Hammer Without Foot Valve Specification:
| Drilling Diameter(mm) | Hammer Length Without Bit(mm) | External Diameter(mm) | Weight Without Bit(kg) |
| φ155-φ203 | 1183 | 146mm, 148mm | 92 |
| Working Pressure(Mpa) | Air Consumption(m³/min) |
| 1.5-2.5Mpa | 1.0Mpa: 9 m³/min | 1.8Mpa: 18 m³/min | 2.4Mpa: 26 m³/min |
| Impact rate at 17 bar | Recommended Rotation Speed | Connection Rod Thread | Bit Shank |
| 25HZ | 20-30 r/min. | API 3 1/2'' Reg | QL80 |
Applications
- Blast hole
- Water well
- Environmental
- Exploration
- Construction
Factory
