Products Description
LEANOMS
A Down The Hole Hammer Bit is a specialized tool used in the drilling industry for percussive drilling of boreholes in rock, hard soil, and other geological formations. It is commonly used in mining, construction, geothermal drilling, and water well drilling applications.
The Down The Hole Hammer Bit is an essential part of the DTH drilling system, which typically consists of a drill rig, the hammer itself, and the bit. Unlike traditional drilling methods that use a rotating drill bit, the DTH system utilizes a hammer to deliver rapid and powerful impacts to the bit's face.
Here's how it works:
Hammer: The DTH hammer is a pneumatic (air-powered) device that is connected to the end of the drill pipe. Compressed air is pumped down the drill pipe to the hammer, where it is redirected to the hammer's piston. The piston strikes the back of the bit, generating a high-frequency percussive force.
Down The Hole Hammer Bit: The DTH hammer bit is the business end of the drilling operation. It has various designs and materials depending on the type of rock or soil being drilled. The bit's face is equipped with tungsten carbide buttons or other hard materials that provide cutting and breaking action as the hammer impacts the rock.
Drilling: As the hammer bit strikes the rock, it breaks it into small pieces, creating a borehole. The broken rock fragments are then flushed out of the hole by air or water pumped down the drill pipe.
Advantages of DTH drilling:
- High penetration rate: DTH drilling is known for its fast penetration rates, making it suitable for efficient drilling in hard rock formations.
- Straight holes: DTH drilling tends to produce straighter boreholes compared to some other drilling methods.
- Versatility: The DTH system can be used in a wide range of drilling applications and is particularly effective in challenging geological conditions.
- Depth capabilities: DTH drilling can reach considerable depths, which is essential for mining and exploration projects.
Overall, the Down The Hole Hammer Bit is a crucial tool in modern drilling operations, enabling efficient and effective rock drilling in various industries.
Specification
LEANOMS
Technical Parameters Of DHD350 COP54 DTH Bits
|
Diameter |
Gauge Buttons |
Front Buttons |
Weight(KG) |
Part Number |
||||
|
mm |
Inch |
Flat Face |
Convex Face |
Concave Face |
Face Type |
|||
|
140 |
5 1/2 |
Φ18*7 |
Φ14*3 |
Φ15*4 |
/ |
Convex Face |
15.3 |
LR-DHD350-140CV |
|
140 |
5 1/2 |
Φ16*8 |
Φ14*8 |
/ |
/ |
Flat Face |
15.5 |
LR-DHD350-140FF |
|
146 |
5 3/4 |
Φ18*8 |
Φ15*8 |
/ |
/ |
Flat Face |
16.1 |
LR-DHD350-146FF |
|
146 |
5 3/4 |
Φ18*8 |
Φ15*4 |
/ |
Φ14*3 |
Concave Face |
16.0 |
LR-DHD350-146CC |
|
152 |
6 |
Φ18*8 |
Φ15*8 |
/ |
/ |
Flat Face |
16.6 |
LR-DHD350-152FF |
|
152 |
6 |
Φ18*8 |
Φ16*4 |
/ |
Φ14*4 |
Concave Face |
16.4 |
LR-DHD350-152CC |
