In the crane industry, semi-gantry cranes are a special type of crane that combines the designs of overhead cranes and motorized gantry cranes. A semi-gantry bridge is supported on one side by an elevated runway, just like an aerial bridge. At the other end of the bridge, the crane is supported on the legs of a semi-gantry, at the end of which trucks run on wheels or wheels with tracks on the floor. In this design, power is typically provided by a power pole and current collector assembly on the elevated runway side of the semi-gantry crane and distributed to the crane trolley via a tow system. SEVENCRANE semi-gantry cranes can be controlled via a wired suspension controller or optional crane radio remote control system.

Container cranes are used in container terminals. Trailers will be shore wall container carrying bridge from the ship unloaded containers transported to the yard or rear, by the container gantry crane stacked up or directly loaded and transported, can accelerate the turnover of the container carrying bridge or other cranes. Can be stacked high 3 to 4 layers, wide 6 rows of containers in the yard, generally with tires, there are also railed.

Container crane development trend: rated lifting capacity has increased exponentially. The rated lifting capacity under the spreader has gradually increased from 30.5t to 61t, and now it has reached 65t. The outreach is getting bigger and bigger. With the continuous large-scale container ships, the ship width has increased from the 3rd generation of Panama container ships 13 rows to the current super-Panama ship 14 to 17 rows of boxes

As we all know, the weight of containers needs some special equipment to transport, and the container gantry crane was born.They can run in an array container at once and raise and drop targets according to different needs.Due to the low center of gravity, easy to control, in order to avoid the center of gravity deviation, the container gantry crane generally use the ceiling.

In warehouses, gantry cranes have a wide range of applications. Gantry cranes can be used for loading and unloading of goods in warehouses. They can lift and move heavy cargo, such as pallets, containers and large boxes, from and into trucks or containers.

1. During lifting operations, it is necessary to have a comprehensive understanding of the working environment, travel routes, buildings, and object weights at the work site. 2. Operators should sound the signal before carrying out lifting, turning, luffing, walking, hook lifting and other actions, and strictly implement the commander's signal. Special operators must have a special operation safety operation certificate.