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High air pressure DTH hammer is a specialized down-the-hole tool primarily used for percussive drilling in rock formations. Characterized by its high air pressure operation and superior efficiency, it is ideal for environments with abundant air supply. By utilizing compressed air to drive the piston in a reciprocating motion, it generates high impact energy to penetrate rock formations effectively.
| Type | Model | Length (mm) | Weight (kg) | External Dia. (mm) | Hole Range (mm) |
|---|---|---|---|---|---|
| 3.5 inch | DHD3.5 | 930 | 25 | Φ82 | Φ90-110 |
| 4 inch | DHD340 | 1030 | 39 | Φ99 | Φ110-135 |
| 5 inch | DHD350 | 1214 | 76.5 | Φ125 | Φ135-155 |
| 6 inch | DHD360 | 1248 | 100 | Φ142 | Φ155-190 |
| 8 inch | D85 | 1492 | 188 | Φ180 | Φ195-254 |
| 10 inch | NUMA100 | 1510 | 288 | Φ226 | Φ254-311 |








