... ,easy move 3.High efficiency 4.Hydraulic dri Portable water well drilling rig AKL-L-180 Features:(1)AKL-L-180 ... )This machine is abroadly used in constructions of railway, water well, transportation, bridge, dam and so on.(3)In core drilling ... /min)2200Electric motor(kw)15Speedlimit(r/min)1460 Portable water well drilling rig AKL-L-180