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.
