High Pressure DTH Button Bits 140mm QL50 Hammer For Water Well Mining With Tungsten Carbide Mining
The dth button bits is the tool cutting rock. KSQ DTH button bits are made of superior quality alloy steel and all our DTH bits are using the T.C carbide which provides (the T.C buttons) for Boart Longyear. In addition art manufacturing technology makes our dth button bits with higher and more reliable quality.
Different face style makes DTH bits 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.
DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits.
Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers.
| Shank style | Diameter in mm | Flat face | Convex face | Concave face | Approx. weight | Part number |
|---|---|---|---|---|---|---|
| QL 50 | 135 | √ | √ | √ | 16.2 kgs | QL50-135 |
| 140 | √ | √ | √ | 16.6 kgs | QL50-140 | |
| 146 | √ | √ | √ | 17.1 kgs | QL50-146 | |
| 152 | √ | √ | √ | 17.1 kgs | QL50-152 | |
| 165 | √ | √ | √ | 18.0 kgs | QL50-165 |
| Bit size | Shank type | Recommended DTH bits diameter |
|---|---|---|
| 3.5”/3” DTH hammer bits | COP34, DHD3.5, MISSION30, BR3 shank | 90mm~ 105mm |
| 4'' DTH hammer bits | DHD340, QL40, MISSION40, SD4 shank | 110mm~ 130mm |
| 5'' DTH hammer bits | DHD350, QL50, MISSION50, SD5 shank | 134mm~ 152mm |
| 6” DTH hammer bits | DHD360, QL60, MISSION60, SD6 shank | 152mm~ 203mm |
| 8” DTH hammer bits | DHD380, QL80, MISSION80, SD8 shank | 203mm~ 305mm |
| 12'' DTH hammer bits | DHD112, SD12 and QL120 shank. | Available upon to customers’ request |
Welcom to our company and order this product , QL50 dth button bits .




KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations.
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