7665MZ rock drill, 7665 double stage air leg drill, 7665 rock drill, air leg drill, rock drill 7665MZ (forward rotation) double stage air leg drill, 7665 double stage air leg drill, 7665 rock drill, 7665MZ rock drill 7665 rock drill is divided into 7665 forward turning drill and 7665 reverse rock drill machine. The 7665MZ rock drill adapts to different roadway heights and can be used for soft and hard rocks, drilling different apertures of different sizes. It can drill not only anchor holes, but also work surface gun holes, stir and initial resin anchor rods. It is suitable for both rock roadways and harvesting roadways. Its versatility makes it unique because it is comparable to similar rock drills at home and abroad. In addition to the B22mm×108mm small drill rod, there is also room for the B19mm×108mm small drill rod, making it possible to drill a φ27mm small rock hole. Features of 7665 rock drill: 1. The height of the whole machine is short, and the shrinkage stroke is large. The anchor hole perpendicular to the top plate surface can be drilled out, thereby solving the problem that the roadway anchor hole drilling is not perpendicular to the mine for a long time, and guarantees the engineering quality. 2. Innovative development of a positive turning rock drill. The utility model can not only be used for drilling rock holes, but also can be used for stirring and initial installation of resin anchor rods. 3. B19 brazing rod and Ф28 brazing head can be configured, which can meet the needs of promoting the “three small” new technology. 4. The comprehensive rock drilling performance is good. It is not only suitable for drilling medium and hard rock holes with f>8, but also for rock drilling with f≤6. It can be used both for rock roadways and for mining roadways. 5. Simple and practical structure, easy to maintain 7665 rock drill technical performance specifications: rock drill model: 7665M, 7665MZ Rotation direction: reverse, forward rotation weight kg: 25.5 cylinder diameter mm: 76 stroke mm: 70 0.5MPa air pressure impact frequency Hz: ≥34 0.5MPa air pressure impact energy J: ≥62 Air consumption at 0.5MPa air pressure L/s: ≥56 Cylinder inner diameter mm:25 water pipe inner diameter mm:13 brazing tail sleeve mm: (B19 × 108), B22 × 108