Product name: 8inch high air pressure DTH hammer with QL80 shank for construction
Product category: Drilling rig accessories
Matched hammer: Hammer QL80
Connection thread: API4-1/2"REG
Working pressure(bar): 10~25
Outer diameter(mm): 180
Weight(KGS): 171
Bit diameter recommend(mm): 203~245
High air pressure DTH hammer with QL80 shank details:
Rock drilling tools manufacturer KINGDRILLING DTH hammers are available in sizes from 2" to 33" for Down The Hole hammer bits are available in sizes from 2" to 48", with all shanks, multiple face, and with a variety of tungsten carbide button styles to suit a wide variety of drilling conditions and rock formation.
Kingdrilling DTH Hammer advantages:
1. High-frequency hammer design for faster penetration,
2. improved steerability
3. simpler flushing,
4. less impact to sensitive electronics
5. manufactured using superior kingdrilling heat treat processes
High air pressure DTH hammer with QL80 shank technical parameters:
| Model | OD (mm) | Hole range (mm) | Length (mm) | Connection
Thread | Working
pressure
(Mpa) | Air Consumption | Weight
(Kg) |
| MH40Q | 99 | 110~135 | 1070 | API2-3/8"REG | 1.2~2.0 | 1.0Mpa- 5m3/min | 1.8Mpa- 9m3/min | 2.4Mpa-14m3/min | 40 |
| MH50Q | 125 | 135~155 | 1090 | API2-3/8"REG/API2-7/8"IF/API3-1/2"REG | 1.3~2.3 | 1.0Mpa- 7m3/min | 1.8Mpa- 14m3/min | 2.4Mpa-19m3/min | 67 |
| MH60Q | 146 | 155~203 | 1183 | API3-1/2"REG | 1.5~2.5 | 1.0Mpa- 9m3/min | 1.8Mpa- 18m3/min | 2.4Mpa-26m3/min | 92 |
| MH80Q | 180 | 195~254 | 1330 | API4-1/2"REG | 1.5~3.0 | 1.0Mpa- 12m3/min | 1.8Mpa- 22m3/min | 2.4Mpa-28m3/min | 171 |
How to order?
Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
FAQ:
1.What is DTH Bit?
Down-the-hole (DTH) hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a splined drive for rotating the bit in the ground.
2. What is DTH hammer?
Down-the-hole drilling (DTH) essentially involves a drilling hammer at the bottom of a drill string. It relies on three elements for drilling holes: bit loading (weight), rotation and air. These active elements combine to be efficient at crushing rock.
3. How does DTH drilling work?
A down-the-hole drill, usually called DTH by most professionals, is basically a jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or drilling mud).
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