It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
It has the following advantages: 1. Out of the trouble of foot valve fracture and expansion and contraction. 2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve. 3. Simple structure, reliable parts, long life, easy and cheap maintenance. 4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.