This model of hydraulic hinge is with the sealed design. it has passed strict 50,000 open-close test and 48hours salt spray test. it has been brass plated in order to avoid to go rusting.

本款液压铰链采用封口式款型，严格通过5万次开关测试和48小时盐雾测试，表面多增加一层镀铜处理，防止生锈和腐蚀。

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Full hydraulic steering equipment, central hinge in connection to roll-waist, small turning radius, flexible operation, high work efficiency.

全液压转向装置，中间铰接折腰转向，转弯半径小，操纵灵活，作业效率高。

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On military aircraft, hydraulic pressures of actuators caused by hinge torque vary with aerodynamic force on control surface due to different flight states.

飞机在不同的飞行阶段和飞行状态下，由于作用在控制面上的气动负载不同，因而由铰链力矩引起的液压作动筒压力也在变化。

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