Enterprise when choosing hoisting machinery, the first to use object of enterprise comprehensive consideration, choose to suit the requirements of the use of units of crane, not only avoid the wasteful spending, and to ensure that the work is completed. How to choose a suitable crane, henan mine to offer some advice to customers.

(1) selection of single girder and double beam door crane.

Under normal circumstances, the lifting weight is below 50t, and the span is within 35m. Without special use requirement, single main beam gantry crane should be used. If it is required to have large width, high working speed, high frequency of work, or frequent hoisting of heavy parts and growing parts, it is advisable to choose a double beam gantry crane.

(2) span and cantilever length.

The span of gantry crane is an important factor affecting the crane's quality. In the selection, the range should be reduced as far as possible under the premise of meeting the equipment use condition and meeting the standard of span series.

(3) it can ensure that the shape of the cargo is smoothly passed through the supporting leg, which can meet the stability requirements of the portal frame along the track direction of the crane.

(4) the distance dimension of gate crane is determined.

In the work, there should be a certain amount of space between the external dimensions of the portal crane and the cargo of the yard and the transport vehicle passage, so as to facilitate the loading and unloading operation.