... for 1.general investigation, 2.geophysical exploration, 3.drink water well drilling II. Features and Advantages1,With hydro-automatic feeding device, ... high drilling efficiency. 2, Convenient to operate, safe and reliable operations. 3, Compact in structure. All the drill, water pump and ... Load of winch around single rope(kN)18.54Applicable pump unitLBN20 pump unitPump unit output volume(m3/h)80