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High Efficiency High Pressure DTH Hammer

 High Efficiency High Pressure DTH Hammer

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.

Technical Parameters
High Efficiency High Pressure DTH Hammers Technical Parameters
Models SPM440 SPM450 SPM460 SPM480
(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.