Gantry crane is a bridge-type crane whose bridge is supported on the ground track through outriggers on both sides.

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There are many structural types of gantry cranes. The performance of gantry cranes produced by different gantry crane manufacturers are also different.

Understanding the classification of gantry cranes is more conducive to selecting and purchasing cranes.

The SEVENCRANE rubber tyre gantry crane is the main equipment of the container terminal bridge. Currently, industrial rubber tyre gantry 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. However, in the actual operation process, the phenomenon of the trolley deviating from the track often occurs. That is, when the trolley is running back and forth, the center of the wheel seriously deviates from the center of the track, causing the horizontal wheel to squeeze the side of the track, increasing the friction between the two. This causes abnormal wear of the horizontal wheels and tracks, especially when the trolley travels at a full speed of 70 m/min, posing a major safety hazard to the trolley's operation.

I SEVENCRANE automatiserede portalkraner med gummidæk er positioneringsteknologien for hejse- og hejsevogne et meget vigtigt indhold. Under normale omstændigheder fuldendes driften af store og små lastbiler med containerportalkraner automatisk ved at stole på positioneringsteknologi. Controlleren behøver kun at betjene udstyret. Situationen kan overvåges på video. I modsætning til den sidste fase af løfteoperationen, som kræver menneskelig indgriben, kræver automatisering af store og små køretøjers positionering højere teknisk pålidelighed og nøjagtighed.