7665MZ rock drill 7665MZ two-stage air-leg rock drill rock drill 7665M 
 7665MZ (forward) two-stage air-leg rock drill, 7,665 pairs of stage air-leg rock drill, 7665 rock drill, 7665MZ rock drill 
 7665MZ tunnel drilling machine to adapt to different heights can be used for soft and hard types of rock drilling different size aperture. Not only drilling bolt holes, but also face hole drilling, but also the beginning of mixing and resin bolt installation. Both for the rock tunnel, and standards for mining tunnel. Its multi-functional characteristics of rock drilling machine at home and abroad there is no comparable class, unique. 
 Technical performance specifications of 7665 rock drill 
 Model rotation weight kg Bore mm Stroke mm 0.5MPa water pressure when the cylinder bore diameter mm mm mm solder tail sets J impact energy impact frequency Hz Air consumption L / S 
 7665M Reverse 25.5 76 70 ≥ 34 ≥ 62 ≤ 56 25 13 (B19 × 108) 
 B22 × 108 
 7665MZ Forward 
 Note: the need to solder tail configuration B12 × 108 units, the contract should be marked. 

 With B22mm × 108mm with a small drill rod, but also for the use of B19mm × 108mm with a small drill rod left a room, making Little Rock drilling  27mm hole possible. 
 7665 rock drill features: 
 1, the whole height of short, apply shrink large travel. With the roof surface can drill out the bolt holes perpendicular to the long-term to solve the problems of mines Bolt holes drilled perpendicular to the problem is not to protect the quality of the project. 
 2, the innovative development of a forward drilling machine. It not only can be used to drill holes drilled, but also the beginning of plastic resins used for mixing and bolt, to achieve one of the machines, simplify management, save construction costs and improve efficiency. 
 3, B19 drill rod can be configured and 28 bits, to meet the promotion of "three small" new technologies. 
 4, integrated drilling performance, not only for f> 8 of the bore in the hard rock, but also for f ≤ 6 rock bore, can apply to the rock tunnel can also be used for quasi roadway. 
 5, the structure is simple and practical, easy maintenance, and low price, the price of soft rock bolt machine-made one-sixth. 
 Contact: Zheng Ran 
 Mobile: 15269750952 
 Tel :0537 -2,383,736 
 Fax :0537 -2,359,798 
 QQ: 1179553967 
 E-mail: zhongmei05@163.com 
 Address: Torch Development Zone, Jining, Shandong Road, 69 
 Website: http://www.zhongmeigk.com/