Originated from Sandvik classic drill rig frame structure and system, with telescopic boom and oscillation, ST120 surface top hammer drill rig can be widely used in various mining and construction applications. Equipped rock drill LD120 and drilling control system from Sandvik, together with the mechanical rod changer and anti-jamming design, which makes the rigs efficient and reliable, ST120 is the ideal choice for medium size quarry and surface mining.