DHD Series Mining Drill Bits DTH Drill Bit DTH Hammer
Product Information:
• Matching for DTH hammer.
• DTH hammer is a part of down hole drilling rig, which is a working
device of down hole drilling rig. Submersible hole impactor is
divided into low air pressure submersible hole impactor, medium air
pressure submersible hole impactor and high air pressure
submersible hole impactor.
DTH Bit We Can Supply.
For DTH rock hammer and bits, we have
♦ Bits for Low Pressure DTH Hammers
♦ Bits for Medium & High Pressure DTH Hammers
♦ Bits for High Efficiency High Pressure DTH Hammers
Specification:
| Bit size | Shank type | Recommended DTH bit diameter |
| 3.5''/3'' DTH Hammer bits | COP34, DHD3.5, MISSION30, BR3 shank | 90mm to 105mm |
| 4'' DTH Hammer bits | DHD340, QL40, MISSION40, SD4 shank | 110mm to 130mm |
| 5'' DTH Hammer bits | DHD350, QL50, MISSION50, SD5 shank | 134mm tio 152mm |
| 6'' DTH Hammer bits | DHD360, QL60, MISSION60, SD6 shank | 152mm to 203mm |
| 8'' DTH Hammer bits | DHD380, QL80, MISSION80, SD8 shank | 203mm to 305mm |
| 12'' DTH Hammer bits | DHD112, SD12 and QL120 shank | Available upon to customers' request
|
Advantages:
• High drilling efficiency, long drilling tool life, submersible
impactor drilling, the medium is air, no flushing media recovery
and disposal problems, reducing the auxiliary time.
• Low cost of use, the submersible impactor requires small shaft
pressure and low speed of the drilling rig, while the torque is
low, so the natural power consumption is small, and the diameter of
the drill pipe is relatively thin, easy to install and disassemble,
and the service life is long.
• Submersible percussion drilling, the hole wall is more complete,
there is no pollution from other media, basically can preserve The
original formation structure and water permeability can be
maintained, which reduces the well washing time and saves costs.
• In severe leakage formations and unstable hole wall formations,
the submerged percussion can be used to follow the pipe drilling to
completely solve the problem of repeated operations.
