High Efficiency High Pressure DTH Hammer Manufacturer

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.

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.