1.The brief introductions of SJD-2B collapsible electric water well drilling rig The collapsible electric water well drilling rig is widely used in home / factory water wells, farmland irrigation wells, water and air conditioning, construction pile driving and so on. 2.The specifications of SJD-2B collapsible electric water well drilling rig ·Punching range: 60-250mm; ·Drill pipe diameter: 1.2 inch; ·Drilling depth: 100mm aperture can be 70 meters, 250mm aperture can be30meters. ·Voltage: 220V ·Rotary motor: 4000W; ·Speed: 80r/min, can be positive and reverse;Lifting motor: 1000W; ·The overall size of the whole machine is long 900mm, wide 700mm, high 2200mm (collapsible). ·The weight of the whole machine is 70KG (including drilling frame / rotary motor / lifting motor).