All Size High Air Pressure DTH Drilling Hammers (DHD, SD, QL,
Mission, Numa, Cop)
Product description
DTH bit is our main product. We have rich experience in development
and manufacturing high quality products, which adopted high-quality
raw material, advanced technology and passed through strict
inspection.
DTH Hammer specification:
Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption |
|
| 1-3" Middle-low pressure DTH hammers |
BR1
BR2
BR3 | RD40 box
RD50 box
API 2 3/8" Reg |
¢64-¢76mm
¢70-¢90mm
¢90-¢110mm | 0.7-1.75Mpa
0.7-1.75Mpa
0.7-1.75Mpa | 0.7Mpa | 4.5m3/min |
| 1.0Mpa | 4m3/min |
| 1.4Mpa | 5m3/min |
| 3" hammers | DHD3.5
COP32/COP34
M30 | API 2 3/8"Reg | ¢90-¢110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
| 1.5Mpa | 9m3/min |
| 4" hammers | DHD340
COP44
QL40
SD4
M40 | API 2 3/8"Reg | ¢105-¢130mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
| 1.8Mpa | 10m3/min |
| 2.4Mpa | 15m3/min |
| 5" hammers | DHD350
COP54
QL50
SD5
M50 | API 2 3/8"Reg/API 3 1/2"Reg | ¢130-¢156mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
| 1.8Mpa | 15m3/min |
| 2.4Mpa | 23m3/min |
| 6" hammers | DHD360
COP64
QL60
SD6
M60 | API 3 1/2"Reg | ¢152-¢203mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
| 1.8Mpa | 20m3/min |
| 2.4Mpa | 28.5m3/min |
| 8" hammers | DHD380
COP84
QL80
SD8 | API 4 1/2"Reg | ¢200-¢279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
| 1.8Mpa | 26m3/min |
| 2.4Mpa | 34m3/min |
| 10" hammers | SD10
NUMA100 | API 6 5/8"Reg | ¢254-¢330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
| 1.8Mpa | 40m3/min |
| 2.4Mpa | 55m3/min |
| 12" hammers | DHD1120
SD12
NUMA120
NUMA125 | API 6 5/8"Reg | ¢305-¢381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| 1.8Mpa | 56m3/min |
| 2.4Mpa | 78m3/min |
Product Advantages:
1.Valveless air distribution. More reliable.
2.Simple design of the piston, long life.
3.Fewer internal parts, simple structure, longer life, less failure
and easier to maintain because all the parts are heat treated.
4.Easy to disassemble because the top sub, the drive chuck and the
external cylinder are connected by multi-step thread.
Face shape Features
Drop Center
For high penetration rates in soft to medium hard and fissured rock
formations. Low to medium air pressures. Maximum hole deviation
control.
Concave Face
The all-round application bit face special for medium hard and
homogenerous rock formations. Good hole deviation control and good
flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to
medium air pressures. It is the most resistance to steel wash, and
may reduce the load and wear on the gauge buttons, but poor hole
deviation control.
Flat Face
This kind of face shape is suitable for very hard and abrasive rock
formations in applications with high air pressures. Good
penetration rates an resistance to steel wash.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in
medium to hard rock formations. Designed for high air pressures and
good resistance to steel wash step gauge bit.
Product application
At present, DTH drilling tool is widely used in underground mining,
quarries, hydraulic and Hydro-Power Engineering, water well
drilling, Mineral exploration, anchoring hole drilling, geothermal
engineering, Subway excavation, another civil engineering.
DTH is one of the most efficient ways of drilling rock, using a
rapid hammer action to break the rock into sizeable chips which are
then evacuated from the bore hole by the air exhausted from the DTH
Hammer. The technique provides fast drilling of accurately aligned,
straight and clean holes in most ground conditions.
Company informaiton
At sollroc, customer satisfaction is our top priority. Our sales
team takes a proactive approach in meeting customers’ needs. We
take the time to get to know you and learn about your operations so
we can better assist you. We strive to meet customers’ needs by
supplying the tools and equipment you need when you need them,
providing product support, and following through with excellent
customer service every step of the way.
