Mobilna portalna dizalica sa tračnim nosačem sastoji se od glavne grede, krutih i fleksibilnih nogu vrata, pogonskih kolica, mehanizma za podizanje, mehanizma za upravljanje kolicima, električnog sistema, operativne kabine, itd. Prema procesu rada dvorišta, konzola se može produžiti u smjer noge s jednim ili dvostrukim vratima da postane jednokonzolni ili dvostruki konzolni model, a ako se ne produži, bit će nekonzolni model. S obzirom na lokaciju, proces skladištenja i transporta kontejnera, te utovarno-istovarna vozila (kontejnerska ili željeznička vozila), potvrđuju izbor različitih metoda konstrukcije bez konzole, jednokonzole i dvostruke konzole.

Shipyard cranes are the main equipment for manufacturing ships. Currently, crane trolleys generally use rimless wheels and are designed with a guide device (horizontal wheel) added to one side of the track. This structural form reduces the manufacturing deviation and the impact of track gauge changes on the trolley operation under trolley load conditions. Rolling friction replaces sliding friction between the horizontal wheel and the side of the track, and the frictional resistance endured by the operating mechanism is greatly reduced.

The light tire-type container gantry crane for ports can meet the loading and unloading needs of existing cargo types, and has functions such as customs declaration, inspection, foreign trade, and storage. Moreover, its operation efficiency is high and it can take into account the company's subsequent container development. Light tire-type container gantry crane has the following characteristics:

In recent years, with the increasing use of offset rail beam structures (square steel welded rails located inside the box-shaped main beam), the manufacturing requirements have become higher. Let's take this structure as an example to improve it from the manufacturing aspects such as component manufacturing and processing.