Hi Rama, There are a couple of standards that cover shackles, and I’m not sure which you are referring to. If it is EN 13889, this standard only covers grade 6 shackles up to 25 ton. The other standard is BS 3032:1958. This standard has been withdrawn but only went up to 12 ton. Currently we are using RR-C-271 rev. G, it was updated in 2016. This covers both alloy and carbon shackles from a capacity of 65 pounds to 350,000 pounds. We use this standard because it covers a wider range of products as well as sizes. It is a U.S Federal Standard. Let us know if you have any additional questions. Troy Raines Chain and Rigging Product Engineering Manager
Good morning +Jester Mclarpet! To your question about stainless steel shackles - shackles are not rated in the same way as chain, plus shackles come under ASME B30.26, Rigging Hardware. In that standard there is no mention that a shackle has to have alloy properties or grade for lifting. So the use of stainless steel shackles is not prohibited as long as the shackle is made to the B30.26 standard. That would cover markings & design characteristics. Just to confirm, round pin shackles are not to be used for overhead lifting no matter what material they are made from. Hope this helps.Henry Brozyna
I dont mean to be mean about that comment. I'm new to this industry and for the past 7 weeks I've been watching videos in classrooms and this is pretty much the norm. Your company could do better with the same video but better audio to keep the peaiple watching from falling asleep. No offence just useful criticism
Jeremiah - we actually did rerecord the video and don't take offense to your comment. Here is the link to the newer video: ruclips.net/video/AwjZBHVdPeM/видео.html.
Наука
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Very informative and much appreciated even 8 years later.
This is great
Nice publication very useful in lifting engineering practice , keep posting...
+ROLTAMAX PORTEK - Thank you very much. We appreciate your kind words!
This is great!
Gregory Dotson - Thanks for your feedback. Always glad to hear it!
I have 1 doubt sir wt are the roles and responsibilities of a mechanical engineer in rigger .
nice presentation very usefull and clear
+Mario Rivero - Belated thanks for your kind feedback!
Mario Rivero fs
v nice
In case you missed it - our live webinar on the "Proper Use of Shackles" presented by Peter Cooke on May 22nd.
Thanks Trey McCulloch and Hoosier Crane for your support!
Thanks sir to sharing with us this information, sir please can you send me all type of rigger calculation pls?
Sir how to know Shackles capacity.
Here is a blog post that might help you: blog.cmworks.com/shackle-markings-materials-and-appropriate-standards/
Good morning ji
Why can't we use British harmonised Standard for shackles above 25 ton why we use RRC-271D standard
Hi Rama,
There are a couple of standards that cover shackles, and I’m not sure which you are referring to.
If it is EN 13889, this standard only covers grade 6 shackles up to 25 ton.
The other standard is BS 3032:1958. This standard has been withdrawn but only went up to 12 ton.
Currently we are using RR-C-271 rev. G, it was updated in 2016.
This covers both alloy and carbon shackles from a capacity of 65 pounds to 350,000 pounds. We use this standard because it covers a wider range of products as well as sizes. It is a U.S Federal Standard.
Let us know if you have any additional questions.
Troy Raines
Chain and Rigging Product Engineering Manager
Thank you 🙏 so much sir
I suppose round-pin shackles could be used for guy wires. Why can't we use stainless steel shackles ?
Good morning +Jester Mclarpet! To your question about stainless steel shackles - shackles are not rated in the same way as chain, plus shackles come under ASME B30.26, Rigging Hardware. In that standard there is no mention that a shackle has to have alloy properties or grade for lifting.
So the use of stainless steel shackles is not prohibited as long as the shackle is made to the B30.26 standard. That would cover markings & design characteristics.
Just to confirm, round pin shackles are not to be used for overhead lifting no matter what material they are made from.
Hope this helps.Henry Brozyna
maybe invest in a better microphone, good video tho
Thanks, Lucas. We have made this change last year and the quality has improved. We appreciate your feedback!
Maybe update the video and delete this one
I dont mean to be mean about that comment. I'm new to this industry and for the past 7 weeks I've been watching videos in classrooms and this is pretty much the norm. Your company could do better with the same video but better audio to keep the peaiple watching from falling asleep. No offence just useful criticism
Jeremiah - we actually did rerecord the video and don't take offense to your comment. Here is the link to the newer video: ruclips.net/video/AwjZBHVdPeM/видео.html.
I think that we will delete this one completely so that people will find the newer one with the much better audio quality.
We have a newer version of this video. You can view it here: ruclips.net/video/AwjZBHVdPeM/видео.html
Woman never done it so that's 1 thing
the audio quality is absolutely atrocious. everything else is good but please get a better mic.