Detailed product description Well drilling Compact in structure Beautiful in appearance Highly mechanized Easy to transport. Well drillingmain technical parameter Model s400 Max drilling diameter(mm) 650 Drilling depth(m) 400 Speed oftotarydisk(rpm) (r/min) 22 59 86 126 Moment of torque of rotary disk( kn.M) 13.7 5.1 3.5 2.3 Product description: 1, s400 hydrology water well drilling rig is a product having honourably awarded the national scientific research achievement prize . 2, it is so designed that the drilling of the drill rod is actuated by a rotary disk.The drill is suitabe for the exploration of water sources to 3, it is also adapted to farm irrigation and drainage.Engineering geological drilling and exploration.Etc.This drill is wholly mounted.Possesses an integral drill tower and a partly hydraulic operated.It has a large bore diameter of totary disk.A deerer drilling depth and a large moment of torque. 4, the drill is compact in structure and beautiful in appearance.It is highly mechanized and easy to transport.