... by hydraulic pressure, hydraulic pump provide motives for the system, promote the hydraulic motor running, pass to ... side equipped with a warpingbarrel, increase greater convenience for ship to moor and dock. Its base is ... high quality making,low price,simple operation,suitable for all kinds of small and medium-sized ... 12MPa Pressure in over load 18MPa d. Hydraulic system part Type of el-motor Y225-4-H ...