KSQ Technologies (Beijing) Co. Ltd
KSQ Technologies (Beijing) Co., Ltd.
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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.
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.
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:
| Low Air Pressure Hole Dia | 65-220mm |
| High air pressure hole Dia | 85-305mm |
| Face type | Drop-center /Concave /Convex /Double-gauge /Flat face |
| Carbide button shape | Domed/Parabolic,Semi-ballistic/ Ballistic/Conical |
| Drill rock type | |
| Blast holes,/Quarry/Anchoring/Infrastructure/Geothermal holesWell drilling,ect. |
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.