Detailed Product Description water well drilling rig main Specifications: ModelKDL-100KDY-200KDY-300Ydrilling depth (m)100200300-500Driving stem dia mm4242 504260Angle range (°)036003600360Shifting oil tank stroke(mm)300360400Spindle speed (rpm)144, 264, 590, 1083forward: 60,150,240,340,550,830 reverse: 35,85,135forward:34,67,115,189,238,156,307,531,868, 1094reverse:38,173Spindle innerdia (mm) ...