High Efficiency High Pressure DTH Hammer
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Features
1. Manufactured using the domestic most up to date thermal treating process, the high efficiency high pressure DTH hammer comes with excellent mechanical properties.
2. Ideal energy transfer is obtained due to state of the art internal structure design. This ensures large power of single impact, high drilling efficiency and low air consumption.
3. As one of the indispensable drilling rig components, the down-the-hole hammer is made using the most premium material and the most advanced process which result in more stable performance and longer service life.
4. Simple construction enables the DTH hammer to be easily assembled and maintained, with low failure rate.
| High Efficiency High Pressure DTH Hammers Technical Parameters | ||||
| Models | ||||
| (mm)/Drilling diameter | Φ115~130 | Φ130~152 | Φ165~216 | Φ203~254 |
| (mm)/Hammer length | 998 | 1087 | 1076 | 1450 |
| (mm)/External diameter | Φ98 | Φ118 | Φ146 | Φ 181 |
| (Kg)/Weight | 40 | 60 | 92 | 260 |
| (Mpa)/Working pressure | 0.8~2.1 | 0.8~2.1 | 0.8~2.1 | 0.8~2.1 |
| (m3/min)/Air consumption | 3~12 | 3~14 | 6.8~20 | 9.6~24.8 |
| (N·M)/Torque | 402 | 840 | 980 | 1870 |
| (bpm)/Impact frequency | 850~1320 | 850~1600 | 860~1610 | 1100~1350 |
| Top sub (Connection to drill string) | API 2-3/8" Reg Pin (male thread) | API 2-3/8" Reg Pin (male thread) | API 3-1/2" Reg Pin (male thread) | API 4-1/2" Reg Pin (male thread) |
| Drive sub (Connection to drill bit) | Φ67-12 | Φ83-12 | Φ104.4-12 | Φ128-12 |
| Bit shank | SPM440-115/120/130 | SPM450-130/140/152 | SPM 460-165/178/194/203/216 | SPM480-203/216/230/254 |
| Code name: SPM Model No. Eg.: SPM450 4= High Efficiency High Pressure DTH Hammers (0.8~2.1Mpa); 50=5 in. ※Above technical parameters are used for reference only. | ||||
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