... side rolls to tuning and close, the pressure come from hydraulic station. 2-4 upper rolls balance devicelift upper rolls to ... installation and transformation.2-6 hydraulic system Composed of Y series motor, gear pump , valves , oil tank, pipe and so on.Max ... before delivery.9, supply range 9-1, main machine9-2,hydraulic device9-3,electricity device9-4,technical documents include operation manual ...