Cop44 4'' High Air Pressure Special Steel Black Mining Down The
Hole DTH Hammer
Product description
We are a leading manufacturer of rock drilling tools, like DTH
hammers and bits, DTH drill pipes, RC hammers and bits, tophammer
button bits, coupling, cross bits, drill rods located in Changsha,
Hunan, China.
We have rich experience in this field of DTH hammers and bits for
20 years.
Owing to high quality, professional serivce and competitive price,
we have gotten good reputation from our customers from all over the
world, such as France, Spain, Italy, South Africa, Iran, Malaysia,
Australia ad etc.
DTH Hammer specification:
Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption |
|
| 4" hammers | COP44 | API 2 3/8"Reg | ¢105-¢130mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
| 1.8Mpa | 10m3/min |
| 2.4Mpa | 15m3/min |
Cop44 matched bits:
For 4" hammer
DTH bits shank | Bit Dia. | No.
Air Holes | Gauge
Buttons | Front
Buttons | Weight
(Kg) | Part No. |
| mm | inch |
COP44
| 105 | 4 1/8" | 2 | 6×φ14 | 5×φ13 | 9.0 | Cop44-105 |
| 110 | 4 1/4" | 2 | 7×φ13 | 6×φ13 | 9.3 | Cop44-110 |
| 115 | 4 1/2" | 2 | 7×φ14 | 6×φ13 | 10.0 | Cop44-115 |
| 120 | 4 3/4" | 2 | 8×φ14 | 6×φ14 | 11.0 | Cop44-120 |
| 127 | 5 | 2 | 8×φ14 | 7×φ14 | 12.0 | Cop44-127 |
Shank can be available:
Product Advantages:
1.The cylinders, pistons, and other spares is made of quality alloy
steel with heat treatment.
2.Valveless air distribution. More reliable.
3.Simple design of the piston. Long life.
4.More efficient energy transfer, fact drilling speed, lower air
consumption and lower oil consumption.
5.Fewer internal parts, simple structure, long life, less failure
and easier to maintain because all the parts are heat treated.
6.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.
