8-inch Pneumatic DTH Hammer with QL80 Shank - 180mm OD, 10-25 Bar Working Pressure for Construction Drilling
ODM 8-inch pneumatic DTH hammer with QL80 shank designed for heavy-duty construction drilling applications. This high-performance drilling tool delivers exceptional efficiency in challenging rock formations.
- Product Category: Drilling Rig Accessories
- Matched Hammer: QL80
- Connection Thread: API4-1/2" REG
- Working Pressure: 10-25 bar
- Outer Diameter: 180 mm
- Weight: 171 kg
- Recommended Bit Diameter: 203-245 mm
- High-frequency hammer design for faster penetration rates
- Enhanced steerability for precise drilling control
- Simplified flushing system for efficient debris removal
- Reduced impact on sensitive electronic equipment
- Superior heat treatment processes for extended durability
| 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 |
Specify: Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
Down-the-hole (DTH) hammer bits are used with DTH hammers for drilling holes through various rock types. Designed with a splined drive, these bits rotate in the ground in conjunction with DTH hammers.
Down-the-hole drilling (DTH) involves a drilling hammer at the bottom of a drill string. It utilizes three essential elements for efficient hole drilling: bit loading (weight), rotation, and air pressure to effectively crush rock formations.
A down-the-hole drill (DTH) functions as a jackhammer attached to the bottom of a drill string. The rapid hammer action breaks hard rock into small cuttings and dust, which are then evacuated by air, water, or drilling mud.
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