How to safely lift large goods

For the lifting or assembly of large goods. Because large goods has the characteristics of large tonnage, complex shape, high value and multi-person cooperation, it will increase the difficulty and risk factor of the operation. Therefore, when the sling is used for hoisting large goods, the following essentials should be mastered and grasped:

1. Before operation, observe the shape of the goods, grasp the center of gravity of the goods, and confirm the weight of the goods according to the drawings.

2. Correctly choose slings such as ropes, shackles, and hooks. When steel wire rope is selected, the tensile force of a single rope can be calculated according to the empirical formula of S (Newton) = 100·d2. Where d is the diameter of the steel wire rope in millimeters.

3. There are lifting rings or lugs specially designed for hoisting on the goods, which should be checked carefully before operation, and ropes should be added to all the lifting rings.

4. If there is no lifting ring for the goods, the position of the cable point should be correctly selected. And align the hook head of the crane with the center of gravity of the cargo.

5. Note that the angle between the ropes should generally be less than 90°.

6. The edges and corners of the goods where the rope passes must be protected by corner protection.

7. Before hoisting, there must be a trial hoisting process, and the next operation will continue after confirming that it is safe.

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