Middle-High Air wressure DTH Hammer

It is a king of middle air pressure DTH hammer without foot valve,our new design. It is also one of the most advanced DTH hammer in the market. 1.Out of the trouble of foot valve fracture and expansion and contraction. 2. Lower energy consumption and higher impact frequency. Drilling speed is higher than the ones with foot valve. 3.Simple structure, reliable parts, long life span, easy and cheap maintenance.