DHD series hammer(High pressure) DHD340

DTH Air Hammer gives you more power down the hole, making your investment produce more in less time. 
The D Miningwell DHD high pressure DTH hammer is used in many different applications which include but are not limited to heavy construction, mining, oil and gas, quarries, and water-well.
This high air pressure DTH hammer work without footvalve is designed and developed by our own, which is the one of the most advanced DTH hammer in the world.
It has following advantages
1.Avoid the problem happens on foot valve. Fracture,expansion and contraction.
2.Lower air comsumption and higher impact frequency. 15-30% higher drilling efficiency than the bit with foot valve.
3.Simpler structure and less spare parts, makes easier & cheaper maintenance.
4.Heat-hardened spare parts,makes longer serving life and less problem.
5.Thread connection for top sub and drive chuck,makes easier disassembly.