... 24r/min.SPECIFICAITONS Hole dia. (mm)300, 500, 1000Hole depth (m)200-400, 50-100, 25-50Hole dip angle (°):360Swivel Head ... (single line, lower speed, kN)29Hoist lifting speed (3rd layer, m/s)0.82, 1.53, 2.16, 3.13Wire rope ... dia. (mm)15.5Drum capacity (four layer, m)52Retraction device stroke (m)400Power (by clients request)Diesel engine2135type.30kW,1500r/minElectric ...