High Air Pressure DTH Hammers
ND55 High Air Pressure DTH Hammer
5-inch DTH hammer balancing penetration and air efficiency for quarry and mining.
ND55 High Air Pressure DTH Hammer
ND55 (5")
ND55 High Air Pressure DTH Hammer
The ND55 covers the most common 5-inch production holes. A robust piston and optimized air path give strong penetration in abrasive formations with lower fuel cost per meter.
Surface miningQuarryBlast holesWater wells
Specifications
| Hole diameter | Ø135–155 mm |
|---|---|
| Drill pipe | API 2-3/8" / 3-1/2" REG |
| Working pressure | 10–25 bar |
| Outer diameter | 125 mm |
| Length | 1015 mm |
| Weight | 34 kg |
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