A 500-kilogram gantry crane is a small-sized gantry hoist. It features casters at the bottom that allow it to move freely within a workshop without the need for specific flooring specifications. It can be used in conjunction with either hand-operated or electric hoists. The height and span of the crane are customizable. A mobile gantry crane is a variation of a bridge crane, primarily used for loading and unloading operations in outdoor freight yards, storage areas, and bulk cargo handling. Its metal structure resembles a door frame, with two legs installed under the main beam, enabling it to walk directly on the ground. The working range is flexible and can be utilized in port freight yards. After the operation (assembly) of the gantry crane is completed, a load test should be conducted; this includes both static and dynamic loads to check the operational capabilities, load-bearing capacity, and stability and reliability of each system.