... suitable rotary speed. 3,Utility patent 5,Full hydraulic rig Exploration Drilling Rig(HGY-1500T) Brief introduction: 1.32 years professional manufacture2 ... , Iran, South Korea, Costa Rica etc.Features of Exploration Drilling Rig(HGY-1500T):1) Wide range of suitable rotary speed to ... engine weght(Kg)385Overall dimensions(mm)2460*1150*1888 Weight(power unit excepted)(Kg)4100 Head angle range0~90Tower ...