Modular Design: center body module ;cylinder module;spring module ISO Valve Mounting: The JW series actuators interface meets ISO standard , and meets the dimensional requirements of ISO defined for each torque rang . Waterproof Protection: O-Rings are fitted on body,caps and so on .This ensures waterproof protection Torque outputs:Double acting 3396Nm~250000Nm Single acting 3260Nm~110032Nm