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.
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.
|High Pressure DTH Hammers Technical Parameters 1|
|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|
|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
| 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.