... exploration and drilling technology in many fields. The hydraulic core rig contains hydraulic pump, hydraulic motor, main valve, windlass, ... cross-country and climbing slope. The advanced instrument of rig has the feature of easy operation, position accuracy, ... angle°45-90 Rod lift stroke m 6.09 Rig sliding strokemm1100Parameters of dissel motorModelUnit Cummins 6CTA8.-C215PowerkW160Revolutionr/ ...