The safety technology of the wire rope slings used by different cranes is different, take the construction outdoor gantry cranes as an example, the sling safety technology must comply with the technical specifications of JGJ276-2012.1. In order to improve the safety factor, the slings are often made of 6*37 wire ropes.2. The length and diameter of the sling should be determined according to the volume and weight of the heavy objects lifted by the gantry crane, the crane lifting tools and the lifting method, the single, double and multiple roots can be selected according to the needs.3. Th ...
1. Should test lifting before each operation, lift the weight 200mm from the ground to test whether the brake is reliable, and it can be lifted after confirming safety.2. When working, the outdoor gantry crane wire rope should be lifted vertically. It is not allowed to slant, otherwise it will not only make the weight swing or collide with other objects, but even cause the crane to overturn.3. The distance between the hook and wire rope reel should be kept at a certain distance to prevent the hook from colliding with the reel to damage the reel, or the wire rope is broken, which may cause the ...
With atmospheric environment deterioration, the acid of rain has increased, it also causes some impact on the outdoor gantry cranes, the anti-corrosion becomes a very important focus of outdoor gantry crane maintenance. Outdoor gantry crane anti-corrosion mainly have the following points:1. If the outdoor gantry cranes steel surface paint coat was damaged, it is necessary to clean the surface and paint with anti-rust coat and decorative paint to protect the metal surface, insure the steel will not be rusted in the rain and snow.2. At the active part of the outdoor gantry crane, such as sl ...
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