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Textile lifting slings, including flat webbing slings and round slings , are widely used in material handling and lifting operations. Although their construction is different, the testing principles, safety requirements, and inspection methods are highly similar. This guide explains how lifting slings are tested, what standards apply, and what engineers should check before use. Four Testing and Inspection Commonalities Commonality 1: The absolute authority of tags The identification tag affixed to a sling holds absolute authority, serving as its legal "identity card." For both flat webbing slings and round slings, the absence of the tag, its coverage by paint, or its fading to the extent that the Working Load Limit (WLL), material composition, or manufacturer information becomes illegible shall render the sling automatically disqualified. In such cases, no further tensile testing or supplementary inspection is warranted. The sole and correct course of action...

  How Fast Should You Test Lifting Slings? When testing lifting slings, most people focus on  test load  and  safety factor . But there is another critical parameter that is often overlooked:   Testing speed (loading rate). The speed at which the load is applied can directly affect: Test accuracy Safety during testing Final test results Sling performance evaluation In this article, we explain  why testing speed matters , how it affects different sling types, and best practices for setting the correct speed during sling testing. Why Testing Speed Matters for Lifting Slings Testing speed refers to  how fast the load is applied  to the sling during proof or breaking tests. If the loading speed is: Too fast  → shock load, unstable readings, unsafe conditions Too slow  → inefficient testing, possible creep effects on synthetic slings Proper speed ensures: Stable load application Accurate test data Compliance with industry standards Protection...