Q&A
Why does a basket hitch sling configuration double a sling's vertical rated capacity?
Question: Could you please explain the engineering reasoning on why a basket hitch sling configuration doubles a sling’s rating if both ends of the sling are vertically parallel to each other when going from the load to the load hook/spreader beam? See image 3 below: Answer: There are actually two questions within your request. We…
Read MoreConnecting 2 Slings with Shackles.
Question: Can we use 2 slings linked by a shackle to strangle a steel stick? Answer: When connecting two slings together, shackles are the preferred method. When connecting slings using shackles be sure to follow the following steps. 1. Prevent shackles from eccentrically loading (pulling at an angle). If this is not possible shackle rating…
Read MoreDo two slings equal double the capacity rating?
Question: Do two slings connected in a vertical hitch at the same single connection point (both top and bottom) give you double the capacity rating? Answer: The two slings of equal capacity will have a rating equal to the combined vertical hitch capacity under the following conditions: 1) The slings are of exactly the same…
Read MoreWhy can't wire rope slings be made from rotation resistant wire rope?
Question: Why doesn’t ASME B30.9 permit wire rope slings to be made from rotation resistant wire rope? Is it because the core direction is different than the strands and not possible to fabricate? Answer: Rotation resistant wire rope is not to be used in the fabrication of slings because of its design characteristics. Rotation resistant…
Read MoreWhat is the D/d for a nylon webbing (flat) sling to achieve full basket capacity?
Question: Assuming the pin is within its rated capacity, what is the D/d for a nylon webbing (flat) sling to achieve full basket capacity? Answer: There are no D/d reductions for nylon webbing. If the pin can support the load of the basket hitch it will be fine. The only concern we have with flat…
Read MoreHow do you rate a sling when using an adjustable hitch?
Question: In your Did You Know videos you show an “adjustable hitch” using a web sling and sling saver shackle. Very useful. My question is how do you rate the sling in this configuration? It seems the lifting capacity is dependent on the friction formed at the shackle so it would be dependent on the load. …
Read MoreMeasure Twin-Path® Slings under load to ensure accuracy.
Question: I have a question concerning (4) TPX9000 x 60 ft. We have measured these slings and it appears that the slings are now different lengths, some having up to a few inches of difference. Could you please send me information concerning the proper way to measure the slings, and if there is any reasons…
Read MoreSeparation in Eye Strands
Question: We recently supplied slings to a customer for a project site and one of there main riggers refused to use the product due to the separation in the eye strands and some deformation and a couple of wire pops at crimp. I was told that this happens occasionally as a result of certain wire specs/sizes…
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