JDL-300 hydraulic rig machine

JDL-300 water-air dual purpose track-mounted core Drilling Rig: It is widely used in the geological general investigation and exploration, road, railway, port, bridge, water conservancy, tunnel and tall building basic exploration, kinds of hole in concrete structure, river, levees, subgrade grouting hole drilling and direct grouting, civil wells and earth central air conditioner, and etc. 1.This drill has more positive speed grades and reasonable speed range, with bigger