... ,high-rise building ,air port and the deep foundations etc. Drilling Rigs (with electromotor)ModelDR60DR80DR100DR120DR150DR180DR220Drilling diameter 90-185mm100-220mm150-250mm150-250mm150 ... diameter 100-220mm150-250mm150-250mm150-250mmDrilling depth 50-80mm60-100m80-120m80-160mPower 48kw,diesel engine75kw,diesel engine75kw,diesel engine100kw,diesel engine Drilling Rig / Drilling ...