... landslide,rockslide so on,also used in rock anchoring,anchoring bar,strengthening retaining well,supporting in deep foundation pit,mini-pile ... hole drilling,hydrography well drilling and high pressure jet-grouting for hydroelectric powerstation,communication,energy and capital ... 22000max stroke(mm)1200angle range-90°~90°overal dimension of drill body(L*W*H)mm/weight(kg)2000×805× ...