for underground mining, hydraulic
dhms gas-borehole, long-hole and prospecting drilling equipment uses state-of-the-art drilling technology. It guarantees high performance rates even in difficult operating environments, such as those encountered when drilling gas drainage holes and prospecting holes for deep coal mining industry.
The robust design, long service life and efficiency of dhms drilling systems have been tried and tested worldwide under the toughest of conditions.
The main design features are:
high drilling performance
robust design for use in underground mining
sparing on drilling tools