S77 is an All-In-One hydraulic DTH drilling rig, which equipped double cycloid motors can output massive torque and reduce possiblility of pipe-stuck situation.     And the rotation rate can be continously adjusted according to differet rock formations.     The imported seals for the rotation unit is with extraordinary performance and long service life.     The high-output Atlas Copco air compressor features two stages of compression, powerful and realiable.
Mining Drilling Rig Crawler DTH Drilling Machine Hydraulic Borehole Drilling Rig
The drilling rig is characterized by excellent integrity and compact design structure. Optional installation of automatic rod change，configuration dry dust collectors environmental protection.
High degree of automation, efficient drilling, simple operation, flexible maneuverability,
single operator for labor cost.
Sanrock automatic drilling rig with rod changing system, powerful feeding and rotation design for less jamming in complex rock situation,hefficient High efficiency drilling speed.  
Can easily cope with all kinds of drilling angel requirement of landscapes.
The advantageous functions such as precise boom positioning,automatic rod handling.