Mountains brand model YT-28 drilling machine 
 Product scope alias rock drill mines, roads, municipal 
 Bore diameter of 32mm 60mm (mm) hole to the depth of 10m (m) 
 Drilling speed 1000 (mm / min) the impact of energy 70 
 The impact of frequency 37 (Hz) 

 Half a century of innovation, experience and perseverance in the pursuit, in the "mountains" brand rock drilling machine ambience. Excellent quality, excellent performance, so that the "mountains" brand pneumatic rock drill is widely used in coal, metallurgy, railway, transportation, water, infrastructure and defense projects in various levels of rock, tilt, down the hole drilling operation. 


 ? Scientific design, careful layout. 
 Using modern design methods, the performance of each product is optimized for all operating mechanism arranged according to ergonomic principles to ensure the high performance, high efficiency and ease of operation, security. 
 ? Tempered, strive for excellence. 
 High-quality materials and scientific forging, always embodies the "quality" content, to ensure that the products of high strength, high wear resistance and impact resistance. 
 ? Carved, golden touch. 
 CNC machining, Unicase automatic heat treatment line, to give "quality" of the guarantee and the "head" of the self-confidence. 
 ? Scientific experiments, fine cast. 
 By the computer-controlled drilling machine factory running test bench, hold the dynamic characteristics of each product, to avoid the occurrence of human errors, to ensure the excellent quality of manufactured products and excellent performance.