Product Description: The Shandong Zhengyuan SL400S is a top drive, fully hydraulic water well drilling rig that focuses on efficient water well construction. Its core advantage lies in its balance of deep drilling capability and flexible adaptability. It can drill to a maximum depth of 400 meters with a diameter range of 105 to 325 millimeters, meeting the needs of most civilian and small to medium-sized engineering water wells. Relying on a fully hydraulic system, operations