DTH Hammer

3. ND/QL Series DTH Hammer With Foot Valve

This high air pressure DTH hammer working with foot valve.


It has following advantages:


  • Simple design of the piston, long life span.
  • More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
  • Fewer internal parts, simple structure, long life span, less failure and easier to maintain because all the parts are heat treated.
  • Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.