Atlas Copco 4 Inch High Pressure DTH Button Bits DHD340 for Quarry
and Well Drilling
DTH Hammer Bits have high-air pressure and low-air pressure ones.
With advanced design concept, better wear-resistance, better
impact-resistance, higher drilling speed and longer service life,
they are widely used in large-scale open pit mining, quarry and other
construction projects.
Product Description:
The DHD340 DTH bit is the tool cutting rock. Miroc DHD340 DTH bit for mining is made of superior quality alloy steel
.Besides, all our DTH bit is using best quality carbides. In
addition art manufacturing technology makes our DHD340 DTH bit for mining is with higher and more reliable quality.
Product Advantage:
Independently researched and developed alloys with high strength
and good abrasion resistance.
Different face style makes DTH bit is suitable for various rock
conditions.
Flat face: This is an universal design, especially for hard and abrasive
rock formation. So typically, flat face with hemi-spherical buttons
design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is
not so abrasive. This design have very excellent penetration rate
but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and
fractured. Especially for deep hole drilling, excellent control
over hole deviation.
Products Parameters:
Specification of other DTH Bits:
| Specification: | Diameter: (mm) | Weight: (kg) |
| Low air pressure DTH bits CIR type | 68 ~ 200 | 2.6 ~ 48 |
| Middle air pressure BR & COP type | 76 ~ 110 | 3.8 ~ 15 |
| 3 inch high Air pressure DTH bits(COP32/BR3/HD35/IR3.5/COP34/QL30) | 85 / 90 / 95 / 100 / 105 | 4.2 ~ 5.5 |
| 4 inch high Air pressure DTH bits(HD45/DHD340A/COP44/SD4/QL40/HM4) | 105 / 110 / 115 / 120 / 127 | 9 ~ 12 |
| 5 inch high Air pressure DTH bits(HD55/DHD350R/COP54/SD5/QL50/HM5) | 133 / 140 / 146 / 152 / 165 | 15 ~ 18.5 |
| 6 inch high Air pressure DTH bits(HD65/DHD360/COP64/SD6/QL60/HM6) | 152 / 165 / 178 / 190 / 203 | 26 ~ 36 |
| 8 inch high Air pressure DTH bits(HD85/DHD380/COP84/SD8/QL80/HM8) | 195 / 203 / 216 / 254 / 305 | 33 ~ 95 |
Company Information: 
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision
manufacturing, and dedication to the use of high-quality materials.
MIROC® Rock Drilling Tools are used by many drilling professionals
related to mining, construction, tunneling, and quarrying projects
around the globe.
