... kinds of cranes, such as shipyard gantry crane, port level luffing crane, industry heavy capacity overhead crane, as ... IP55 *The maximum relative humidity:95% *The altitude is lower than 2000m StandardsUnless otherwise noted, the default standards of ... control. Hardware system of our primary components adopt as below due to its reliability and easy traceability: Schneider, Siemens, ABB, MITSUBISHI, ...