YG series well drilling rig is a kind of lightweight, efficient, multi-functional drilling equipment. With wheel, easy to move and saves operation cost. With ball clamping mechanism instead of chuck, enables implement non-stop down rod.
[pdf] The HD55 uses the same frame as its heavier-duty stable mate, the HD77, and provides the ideal balance of power, features and portability for lighter commercial applications where maximum portability and a greater depth range are needed at an affordable price.
[pdf] The standard method involves percussion drilling in which a drill is alternatively raised and dropped in the descending borehole. It is suited to the drilling of wells in any material from soft clay to the hardest rock.
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