Rolling mill and rolling method

A rolling method for a rolled metal strip by a rolling mill including:

• a mill roll;
• a plurality of hydraulic cylinders including a drive side hydraulic cylinder that is configured to apply force in an axial direction to the mill roll and is provided on a drive side of the mill roll, and a work side hydraulic cylinder that is configured to apply force in the axial direction and is provided on a work side of the mill roll;
• and
• a hydraulic circuit configured to send hydraulic oil to the plurality of hydraulic cylinders so that the drive side hydraulic cylinder and the work side hydraulic cylinder move in the axial direction to hold a position of the mill roll in the axial direction, the method comprising:
• rolling the rolled metal strip by configuring the hydraulic circuit such that after the hydraulic circuit holds a position of the mill roll in the axial direction, in a case where only a hydraulic cylinder on one side between the drive side hydraulic cylinder and the work side hydraulic cylinder becomes a state of applying force in the axial direction to the mill roll due to external force received by the mill roll, a hydraulic cylinder on another side between the drive side hydraulic cylinder and the work side hydraulic cylinder moves in a direction opposite to the hydraulic cylinder on the one side.