Signs on cranes that cannot be ignored
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If we observe carefully, we will find that the signs on cranes display various indicators related to them; these indicators describe the crane’s performance and specifications, and they are very important for the safe use of cranes. Firstly, the lifting capacity, that is, the rated lifting capacity of the crane, is an important indicator on the nameplate of a bridge crane; it is usually marked in a prominent position on the crane’s body. However, for jib-type cranes, the rated lifting capacity changes as the span varies. Secondly, the lowering depth h and the lifting range D are also characteristics of a crane. Among them, the descent depth refers to the vertical distance between the lowest working position of the lifting device and the horizontal support surface of the crane ； The lifting range refers to the vertical distance between the highest and lowest working positions of the lifting device. In addition, other indicators of the crane are also important signs for its safe operation and should not be ignored, such as lifting height, maximum torque, arm length, and so on. At the same time, it is also hoped that the personnel involved in crane operations will take these signs seriously in order to enhance the safety of cranes
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