7665MZ series dual-stage air leg rock drill for drilling the tunnel roof bolt hole perpendicular and stirred and early loading resin bolt. 7665MZ pneumatic drill it can adapt to different tunnel height, deal with all kinds of hard and soft rock, drill bolt holes of different pore size. 7665MZ accommodate both pneumatic drill rock roadway, but also to adapt Mining Roadway, its versatility, no similar rock drill at home and abroad comparable, unique. 7655 drilling machine can be divided into reverse (7655M drilling machine) and forward (7655MZ drilling machine), 7655MZ rock drilling machine can also be stirred and early loading resin bolt. 7655 drilling machine equipped with B22mm × 108mm small drill rod, but also to be equipped with B19mm × 108mm small drill rod left the room, so φ27mm Little Rock drilling holes possible. 7665 rock drill Features: 1, low machine height, Shen shrink large travel. Bolt holes can be drilled out perpendicular to the surface of the roof, so as to solve the long plagued the mine roadway bolt holes are drilled perpendicular to the problem is not to protect the quality of the project. 2, innovation and development of a forward drills. It not only can be used to drill holes drilled, and initial installation can also be used to stir the resin bolt, to achieve equipment single, simplified management, saving construction costs and improve efficiency. 3, you can configure B19 drill rod and ф28 drill bits, can meet to promote the "three small" new technology demands. 4, good overall drilling performance, not only for f> 8 punctured in hard rock, but also for f≤6 rock punctured, can apply to rock tunnel it can also be used for Mining Roadway. 5, the structure is simple and practical, easy maintenance, and low price, the price is sixth domestic soft rock bolt machine. Model Weight KG commander mm Bore × Stroke mm Working pressure MPa impact energy J Impact Frequency HZ Air consumption I / s 7665MZ 26 720 76 × 70 0.4-0.63 ≥70 ≥37 ≤81