Product name: 4inch DTH Down The Hole High Air Pressure Hammer With DHD340 Shank For Drilling Rig
Product category: DTH Down The Hole Hammer
Matched hammer: Hammer COP44
Connection thread: API 2 3/8 REG
Working pressure(bar): 10~25
Outer diameter(mm): 99
Weight(KGS): 40.7
Bit diameter recommend(mm): 115~130
DTH hammer - an essential solution for enhanced performance and efficiency in drilling operations. Our product stands out with its impressive features that include a higher impact rate, lower energy consumption, and a simple design that remains reliable throughout its long life cycle. With easy and cost-effective maintenance, the DTH hammer ensures lower air and oil consumption, allowing for significant savings in operational costs.
4inch high air pressure DTH rock hammer with DHD340 shank technical parameters:
| Model | Spline | OD
(mm) | Hole
range
(mm) | Length
(mm) | Connection
Thread | Working pressure
(Bar) | Air Consumption |
| MH35D | DHD3.5 | 82 | 90~115 | 888 | API2-3/8"REG | 10~15 | 10BAR/145PSI-134CFM | 15BAR/217.5PSI-265CFM |
| MH40D | DHD340/COP44 | 99 | 110~135 | 1011 | API2-3/8"REG | 12~20 | 10BAR/145PSI-212CFM | 18BAR/261PSI-353CFM | 24BAR/348PSI-530CFM |
| MH50D | DHD350/COP54 | 125 | 135~155 | 1110 | API2-3/8"REG/API2-7/8"IF/API3-1/2"REG | 13-23 | 10BAR/145PSI-247CFM | 18BAR/261PSI-494CFM | 24BAR/348PSI-671CFM |
| MH60D | DHD360/COP64 | 142 | 155~203 | 1238 | API3-1/2"REG | 15~30 | 10BAR/145PSI-318CFM | 18BAR/261PSI-635CFM | 24BAR/348PSI-918CFM |
| MH80D | DHD380/COP84 | 180 | 195~254 | 1359 | API4-1/2"REG | 15~30 | 10BAR/145PSI-424CFM | 18BAR/261PSI-777CFM | 24BAR/348PSI-988CFM |
Kingdrilling DTH hammer feature:
1. Patented innovation to ensure maximum energy transfer
2. Simplified design for easier servicing and higher reliability
3. Hardened wear sleeve for wear resistance even in abrasive conditions
4. Multi-start threads on backhead and chuck for easy coupling/uncoupling
5. Specialised heat-treatment hardening for critical components for maximum longevity
How to order?
Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
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?
In regions with glaciers or deserts, fine-grained, wind-blown material forms loess. Although silt makes up the majority of the material, there may also be trace amounts of sand and clay. Quartz is the predominant mineral found there, with trace 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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