Crawler Down The Hole Drilling Rigs:
"Zuanshan"brand crawler drill series products are special designed drilling equipment which can be widely used to drill deep holes in many areas such as quarry, railway construction, road construction, small-medium mine and so on. Used compressed air as power and equiped with hammer the crawler drill can drill blast holes, break holes, anchoring holes in different directions.
Rock hardness: 4-20
Hole Diameter: 90-165mm
Hole Depth: 0-180m
Working Air Pressure:0.5-0.4MPa