Due to the importance of the multi port an loaders equipment in the area of the Unloading Grain Ship operations in the event of accidents and damages caused by the fall of booms and the parts of the vertical and horizontal of telescopic pipes, therefore, this company has taken action in designing and constructing a precise protection system in order to protect the triple sections of the boom of these equipment. of the first stage, this system has been designed and constructed and tested in the laboratory environment and then by designing and supplying the required equipment for implementing the design and construction of the required interface, it has been installed on four of the Imam Khomeini port’s multi port unload er equipment, this system has a desirable high performance.