0516150401 Nallager is a critical core component for Hydraulic Rock Drill, specifically engineered for both RD18U and RD22U models that serve as the main force of large-scale drilling operations. It plays an essential role in ensuring the stable and efficient operation of Hydraulic Drifter, which is widely applied in both underground mine/tunnel excavation and open-pit quarry/blasting drilling scenarios. This genuine part’s precise design perfectly matches the operational demands of dual-scene drilling tasks, making it an indispensable component for heavy-duty drilling equipment.