Beam structure single girder and double girder are different; Different main beam structure, bearing capacity is different, if it is often lifted 5 tons, it is appropriate to buy some larger, to avoid a time of overload, unable to complete the operation, it is more embarrassing. Good economic conditions, adequate budget, as far as possible to choose a bigger weight, this is a wise choice.
According to the different use site of gantry crane, it is necessary to consider whether it is convenient to pass through the car below, so as to avoid occupying the place, which leads to other inconvenience and is also very troublesome. After installation, it cannot be changed. Whether to take the cab before installation, need to consider the number of driving, if often used, for the sake of safety, the cab, so that the personnel can stand in the cab to watch the following operation site, open field of vision to increase safety, not easy to lift, meet other personnel. Whether it is necessary to install frequency conversion structure frequency conversion is more electricity saving, safe operation, driving easier, but the cost is high, if small and medium-sized enterprises, can not consider, in order to save cost.