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High Pressure DTH Hammer

 High Pressure DTH Hammer

Here you will find our quality and well-performed high pressure DTH hammers. They are designed for exceptional drilling efficiency, combined with more power, faster penetration, less air consumption and longer lifespan.

Features
1. This kind of DTH hammer is designed with a powerful blowing system which makes full use of the high pressure air to blow rock dust and slag out of the hole so as to make the hole bottom clean.
2. Hardened wear sleeve can turn one end for the other after a long term of use, thus prolonging its service time.
3. The DTH equipment is provided with an air plug which can adjust the air consumption for drill hole cleaning according to the rock hardness, wear resistance and drillability so as to realize the best cleaning effect and the highest drilling efficiency.
4. By means of streamlined design that ensures fewer components and wear resistant parts, the DTH hammer comes with higher longevity.
5. Front connector of the rock drilling tool comes with a multiple thread for connection to the outer casing. This makes it easier to disassemble the drill bit.

Technical Parameters
High Pressure DTH Hammers Technical Parameters 1
Models SPM330 SPM335 SPM340 SPM345 SPM345K SPM350
(mm)/Drilling diameter Φ82~85 Φ90-93 Φ105~130 Φ105~130 Φ110~130 Φ130~152
(mm)/Hammer length 867 908 1052 1034 994 1387
(mm)/External diameter Φ71 Φ81 Φ92 Φ98 Φ98 Φ114
(Kg)/Weight 19 21.8 38 39 40 69
(Mpa)/Working pressure 0.8~2.1 0.8~2.1 0.8~2.1 0.8~2.1 1.2~2.1 0.8~2.1
(m3/min)/Air consumption 3~12 4.3~14.2 3.5~18 3.5~15 3.5~15 5.7~18
(N·M)/Torque 150 205 304 335 400 590
(bpm)/Impact frequency ≥800 950~1500 ≥800 ≥800 ≥820 810~1470
Top sub (Connection to drill string) Taper female thread 48.8×4.2 API 2-3/8" Reg Pin (male thread) API 2-3/8" Reg Box (Female thread) API 2-3/8" Reg Pin (male thread) API 2-3/8" Reg Pin (male thread) API 3-1/2" Reg Pin (male thread)
Drive sub (Connection to drill bit) Φ47-6 Φ53-8 Φ64-8 Φ64-8 Φ64-8 Φ84-8
Bit shank SPM330-85 SPM335-90 SPM340-105/115/130 SPM345-115/130 Same to SPM345 (no tail pipe) SPM350-130/140/152
High Pressure DTH Hammers Technical Parameters 2
Models SPM355 SPM355K SPM360 SPM380 SPM3112
(mm)/Drilling diameter Φ130~152 Φ130~152 Φ152~305 Φ203~350 Φ302-508
(mm)/Hammer length 1220 1098 1450 1551 1934
(mm)/External diameter Φ124 Φ124 Φ136 Φ181 Φ275
(Kg)/Weight 74 70 126 277 642
(Mpa)/Working pressure 0.8~2.1 1.2~2.1 0.8~2.1 0.8~2.1 0.8~2.1
(m3/min)/Air consumption 6.5~18 4.5~18 8.5~25 12~31 14~45
(N·M)/Torque 700 800 822 1560 2410
(bpm)/Impact frequency 810~1500 840~1500 820~1475 860~1510 980~1446
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) API 6-5/8" Reg Pin (male thread)
Drive sub (Connection to drill bit) Φ84-8 Φ84-8 Φ99.5-8 Φ128-10 Φ184-8
Bit shank SPM355-140/152 Same to SPM355 (no tail pipe) SPM360-152/165 /178/194/203/216
/230/254/305
SPM380-203/216
/230/254/310/350
SPM3112-302/311
/330/357/381/444
/483/508
Code name: SPM + Model No.
For example: SPM355K
3=High pressure DTH hammer (0.8~2.1Mpa), 55=5 in., K= Fast
※ Above technical parameters are used for reference only.