Product name: 8inch high air pressure DTH hammer with DHD380 shank for piling
Product category: Drilling rig accessories
Matched hammer: Hammer DHD380
Connection thread: API4-1/2"REG
Working pressure(bar): 10~25
Outer diameter(mm): 180
Weight(KGS): 175
Bit diameter recommend(mm): 203~245
High air pressure DTH hammer with DHD380 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.
High air pressure DTH hammer with DHD380 shank technical parameters:
| Model |
OD
(mm)
|
Hole range
(mm)
|
Length(mm) |
Connection
Thread |
Working
pressure
(Mpa)
|
Air Consumption |
Weight
(Kg)
|
| MH35D |
82 |
90~115 |
888 |
API2-3/8"REG |
1.0~1.5 |
1.0Mpa-3.8m3/min |
1.5Mpa-7.5m3/min |
25 |
| MH40D |
99 |
110~135 |
1011 |
API2-3/8"REG |
1.2~2.0 |
1.0Mpa-6m3/min |
1.8Mpa-10m3/min |
2.4Mpa-15m3/min |
43.2 |
| MH50D |
125 |
135~155 |
1110 |
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 |
69 |
| MH60D |
142 |
155~203 |
1238 |
API3-1/2"REG |
1.5~3.0 |
1.0Mpa-9m3/min |
1.8Mpa-18m3/min |
2.4Mpa-26m3/min |
98 |
| MH80D |
180 |
195~254 |
1359 |
API4-1/2"REG |
1.5~3.0 |
1.0Mpa-12m3/min |
1.8Mpa-22m3/min |
2.4Mpa-28m3/min |
175 |
How to order?
Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
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
FAQ:
1. What is rock drilling?
Rock drilling tools include those used for oil and natural gas exploration, mining, construction, and all other industrial operations that need to excavate or drill through natural rocks, concrete, and masonry.
2. What is the weakest rock in the world?
Loess is formed from fine (small) grained, windblown sediment in glacier or desert areas. Loess is made of mostly silt but may also have some small amounts of sand and clay. The major mineral present is quartz with minor amounts of feldspar, calcite, dolomite, and clay.
3. 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.
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