Stability of the drilling module during long hole drilling operation is a critical factor to insure hole accuracy and optimal drilling performances. This means the stingers efficiency is a very important topic. Improper anchoring of the drilling module can also generate important vibrations and unexpected movements that could damage or reduce the life of the module.
Sandvik has developed a new modification kit for stinger pressurization to improve the drilling module stability of the DL432i.
Continuous pressure holds the stinger better on the rock during drilling.