XYX-3 Core drilling rig: 1,Electric start diesel engine 2,High efficiency 3,hydro-automatic feeding device XYX-3 Core Drilling Rig: Application scope Used for ... general investigation, geophysical exploration, high-way and building construction, and blast-hole drilling etc. ... engine/Electric engineR4105ZD 76HP/Y180L-4 22KW XYX-3 Core drilling rig