Application Range:
  It is widely applied to all kinds of rock and excellent for casing systems and water projects.

Design Principles:
 To pursuit smooth operation and reliablity.

Outstanding Advantages:
 The simple structure ensures the easy operation and maintenance.
 The good seal effect eliminates the problems caused by water and flushing entering into the inner cylinder of hammer.they also have the features of large impact power,smooth and stable speed, and long service life.