Do you know the knowledge of sling?

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白色加水印What are the differences between white sling and color sling?

We all know that the national standard lifting belt distinguishes the tonnage according to the color. Purple represents one ton, green represents two tons, yellow represents three tons, gray represents four tons, red represents five tons and orange represents ten tons. This is considering that the signs on the lifting belt may be worn out after long-term use. The user can know the maximum tonnage of the load according to the color to avoid overload.

However, there is one color of lifting belt that is not mentioned above, that is white lifting belt. This is because the raw materials of white sling and color sling are different, so the tonnage cannot be distinguished by color.

The color lifting belt is made of high-strength polyester filament, that is, polyester, with good ductility, while the white lifting belt is made of polypropylene, so the general safety factor of the color lifting belt is 5:1 and 6:1 7:1, while the color lifting belt can only reach 4:1. Therefore, the quality is very poor, and the maximum load of 10 tons can only be achieved.

However, the white sling is not good for nothing. It is a kind of acid pickling. The biggest advantage is that it can be used normally in some acid-base environment, and ultraviolet rays can not damage the safety factor of the white sling, which is unmatched by the color sling.

Therefore, when choosing lifting belts, we should not only look at the tonnage, but also the use environment, so as to choose more suitable ones for us, understand?  how to correctly match the lifting belt with the hook? In the hoisting operation, the hoisting belt and hook are common collocations. How can they be used together to maximize the effect?

When using the lifting belt, hang the lifting belt directly into the stress center of the hook, not at the hook tip of the hook. When using two lifting belts for operation, hang the two lifting belts directly on the double hook. The lifting belt shall be hung at the symmetrical stress center of the double hook respectively; When using four lifting belts, each two lifting belts shall be directly hung on the double hook. Note that the lifting belts in the hook shall not overlap and squeeze each other, and the lifting belt shall be symmetrical to the stress center of the hook. What aspects are related to the stability of hoisting belt in hoisting? The operation stability of the lifting belt needs to be considered in the first place. The stable and safe lifting operation not only ensures the integrity of the lifting items, but also ensures the lifting efficiency. According to the analysis, the hoisting stability is closely related to the following aspects.

There are obstacles in the hoisting space, and there is a certain range of activities for hoisting articles into the air with hoisting belt. If there are obstacles within this range, the stability of hoisting will be greatly affected.

The operation is not skilled enough

Instability is caused by the operator’s unskilled operation or unable to accurately control the operation of the lifting belt. In this case, it is necessary to strengthen the training of operators to make them better master the operation technology


Post time: Apr-11-2022