1. Ingenious Design, High Penetration Rate and Long Service Life.
2. Different product features match different rock formations.
3. High grade steel and advanced heat treatment offer Superior Wear Resistance.
4. Easy for Operation and Cost Effectiveness.
DTH drill bit are widelyused in different drilling applications including mining,quarrying, water well drilling, geotechnical industries and etc.
| Item | 3” | 4” | 5” | 6” | 8” |
|
Rec. hole size (mm) |
90-105 | 105-130 | 133-152 | 152-254 | 194-305 |
|
Working air pressure(bar) |
8-25 | 8-25 | 8-25 | 8-25 | 8-25 |
| Length(without bit)(mm) | 88-930 | 1010-1030 | 1110-1214 | 144-148 | 182 |
|
Outer Dia. Of hammer(mm) |
80-82 | 99 | 126 | 144-148 | 182 |
| Impact frequency (HZ) | 28 | 27 | 25 | 25 | 23 |
| Connection treads |
2-3/8” API Reg |
2-3/8” API Reg |
2-3/8 2-7/8” 3-1/2 API Reg. |
3-1/2 API Reg |
4-1/2” API Reg |
|
Hammer mass (kg) |
25 | 39 | 76 | 100-110 | 180-190 |