Standard Length 1160mm DHD 350 Dth Hammer Hard Rock Drilling
DHD 350 Dth Hammer Description:
“DTH” is the short for “Down The Hole” and sometimes it is also called “RAB” in some markets, “RAB” is short for “Rotary Air Blasting”.
DHD 350 Dth Hammer Application:
Be used for drilling in mining, quarrying, exploration,geothermal, and construction / geotechnical projects
DHD 350 Dth Hammer Specifications:
| Technical Data |
| Length(Without Bit) | 930mm | 1030mm | 1214mm | 1160mm | 1248mm |
| Weight(Without Bit) | 25.00 kg | 39.00 kg | 76.50 kg | 72.50 kg | 100.00 kg |
| External Diameter | 82mm | 99mm | 126mm | 126mm | 142/144/146/148mm |
| Bit Shank | DHD3.5 | COP44/DHD340 | COP54/DHD350R | ND55C/DHD350Q | COP64/DHD360 |
| Hole Range | 90-110 mm | 110-135 mm | 135-155 mm | 135-155 mm | 155-190 mm |
| Connect ion Thread | API 2 3/8”Reg | API 2 3/8”Reg | API 2 3/8”Reg API 3 1/2”Reg API 2 7/8”Reg | API 2 3/8”Reg API 3 1/2”Reg API 2 7/8”Reg | API 3 1/2”Reg |
| Working Pressure | 1.0- 1.5 Mpa | 1.2-2.0 Mpa | 1.3-2.3Mpa | 1.3-2.3 Mpa | 1.5-2.5 Mpa |
| Inpact Rate at 17 Bar | 28HZ | 27HZ | 25HZ | 25HZ | 23HZ |
| Reccfurended Rotation Speed | 25-40 "min | 25-40 r/min | 20-35 r/min | 20-35 r/min | 20-30 r/min |
| Air Consunption | 1.0Mpa :4.5 m3/min | 1.0Mpa :6m3/min | 1.0Mpa:9 m3/min | 1.0Mpa:9m3/min | 1.0Mpa :10 m3/min |
| 1.5Mpa:9.0m3/min | 1.8Mpa:10m3/min | 1.8Mpa:15m3/min | 1.8Mpa:15m3/min | 1.8Mpa:20m3/min |
| | 2.4Mpa:15m3/min | 2.4Mpa:23m3/min | 2.4Mpa:23m3/min | 2.4Mpa:28.5m3/mi |
DHD 350 Dth Hammer Package:
Wooden case
DHD 350 Dth Hammer Technology:
Rotation drill rig, air compressor and the “DTH drill string” are the essential unit for DTH drilling while the “DTH drill string” is always made up of DTH drill rods, DTH hammer and DTH bits. As one of key component, the DTH hammer acts as a role of converting the air pressure to the impact energy, simultaneously transferring impact energy and rotation force to DTH bits.
DHD 350 Dth Hammer Advantage:
As specialist manufacturer and provider of DTH drilling tools, hereby we recommend our newest generation DTH hammer which is improved by absorbing art technology, selecting superior alloy steel and robust design. It is proved by more than thousands times of test that our newest DTH hammer has longer life , lower air consumption and 15% higher penetration speed compared the conventional DTH hammer in the market.
Company Profile:
Hebei Minetech Machinery Technology Co, Ltd. is located in Hebei province of China. Our company is a professional production and export tapered and thread rod, chisel and button bit and other mining drilling tools enterprises. With our rich experience for over a decade and with professional engineers and sales team, we focus on providing complete solutions for mining machinery.
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Standard Length 1160mm DHD 350 Dth Hammer Hard Rock Drilling Images
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