We can supply the drilling rigs for subway,high-rise building ,air port and the deep foundations etc. Drilling Rigs (with electromotor)ModelDR60DR80DR100DR120DR150DR180DR220Drilling diameter 90-185mm100-220mm150-250mm150-250mm150-250mm150-300mm150-350mmDrilling depth 30-60m50-80mm60-100m80-120m70-150m120-180m150-220mPower 37kw,electromotor45kw,electromotor55kw,electromotor75kw,electromotor75kw, ...