1. ST-150 Rotary Borehole Water Well Drilling Rig Equipment with hydraulic feeding device, elevated drilling efficiency, reduced labor strength. 2.The ST-150 Rotary Borehole Water Well Drilling Rig Equipment is equipped with an upper spherical jaw holding mechanism and hexagonal drive drilling rod which can be replaced without shutdown, high efficiency, safe and reliable. 3. A hole bottom pressure gauge is mounted indicating the pressure in order to control the status inside the hole. 4. ST-150 Rotary Borehole Water Well Drilling Rig Equipment designed into compact structure, small volume, lightweight, high detachability, easy transportation and suitable for the operations in plains or mountain areas.