Hydraulic and mechanical drive transmission system, brake control system flexible. ZJ50/3150DB 5000m Skid-Mounted Drilling Rig Model ZJ50DBNominal drilling depth m6000(5″DP)Max. Hook Load, kN3150Hook speed 0~1.5Derrick height, m43,45Derrick type K typeDrill floor height, m7.5, 9Chassis type Swing/ Double risingEngine model GAT3512B generator setEngine power, kW3×1250driving type AC-FC ...