QY series water well driling rig is a light, efficient and multifunctional drilling equipment. lt is mainly used for driling wateiwells, aqricultural irigation wells and other wells, especially for water proiects in mountainous areas and rock formations. Thedriling rig adopts new hydraulic technology, equipped with large torgue hydraulic rotaion motors and a large-diameterhydraulic cylinder for propulsion and lifting. lt is equipped with ordinary alloy dril bits and other driling tools for rotary drling:conventional ball tooth dril bits are used in hard rock formations for impact rotary driling and high-speed hole formation. inunstable formations such as aravel laver, workers can use DTH hammer with following casing.