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.

Dalam kren gantri tayar getah automatik SEVENCRANE, teknologi kedudukan troli angkat dan angkat adalah kandungan yang sangat penting. Dalam keadaan biasa, operasi trak besar dan kecil kren gantri kontena diselesaikan secara automatik dengan bergantung pada teknologi kedudukan. Pengawal hanya perlu mengendalikan peralatan. Keadaan boleh dipantau melalui video. Tidak seperti peringkat akhir operasi mengangkat, yang memerlukan campur tangan manusia, automasi kedudukan kenderaan besar dan kecil memerlukan kebolehpercayaan dan ketepatan teknikal yang lebih tinggi.