Thanks for the information, very valuable. i have a question, the round pin shackle is not listed in the ASME B30.26 even tho it is used for rigging, where can i find the specification about the use of that type of shackle? only with the manufaturer?
Why do 90% or more of people, even those that should know better, calls them clevis?! It drives me crazy,, but I don't correct them, but just go out of my way to use the proper terminolgy as often as I can. Shackles, not a clevis.
When I was at the hardware store yesterday I had no idea what shackle to buy. After watching this video & taking notes, I feel confident to go back and get what I need. And those time stamps where great for note taking.
This is one of those areas you never give a second thought. But now, I am SO GLAD I watched it! I can now make a much more informed decision when replacing my shackles. Thanks!
Thanks man,I just finished my first rigging today and watching your videos is one way to learn more about safe rigging.by watching this, I have learned something that we didn't talked about it today.
This is great info, the clarity and conciseness is appreciated. It's also good to know what is appropriate by US standards, because that's going to keep us safe and reduce the chances of successful lawsuits should anything bad happen. OSHA is a concern from fines of course, but more importantly if someone gets hurt and you're intentionally doing things wrong, pretty much it opens you up to suits that your insurance doesn't cover and that could be found to be criminal. To those saying "it's just the way we do it", I've only seen 3 ways shackles get locked up. One is somebody cranks them down like they're torquing down the ball on a hitch. It just has to be snug. Second, and most common, is somebody shock loads the system and you go WAY over working load. If you're using heavy lifting equipment, heavy cables, and light hardware, that's easy to do. If the crane is way heavier list than the load, consider bumping up the hardware to be 2x+ heavier than what's required for the load. Third is obvious, someone lets a fixed setup rust. I grew up with rigging a daily part of the business, and in 50+ years of operation we never had to cut a shackle off, and we never ran them loose. Use the right gear, use the right procedures, train your crew.
Galvanized shackle is just a zinc coating process , what is the base metal of the shackle ? What is the difference between a shackle and a clevis . Very informative !
You are correct, galvanizing is a process of coating the metal. It is best to check with the individual manufacturer to find out what base metal they use for their shackle. You pose an interesting question on the difference between a shackle and clevis. A Farm and Utility clevis is not used for overhead lifting. Farm and Utility Clevises are often used for towing applications. However, the terms clevis and shackle are often thrown around interchangeably in the world of lifting and rigging. No matter what you call it, shackle or clevis, it is best to pay attention to the WLL and follow the best practices discussed in this video. Thanks for watching!
I deal in sea containers. I delivered a sale box to a gentleman once he picked the m/t 40ft standard box off the chassis with a 25 ft a 30 ft and 2 20 ft straps with a shackle at each corner. Oh. To connect everything he ran a log chain thru all strap eyes and hooked it to a 5 ton Galion crane. He got it lifted. I got the trailer out from under it. But that was the strangest rigging job I've ever seen.
I pick the larger containers often, a few times a year anyway, and use 20' and 12' straps shackled together, times 4. This give me a decent fleet angle and saves me buying and packing dedicated container rigging.
@@Nudnik1 Good to hear, I've done it maybe 20 or 30 times, up to 28 K loaded boxes. The rigging and shackles were all within loading specs, even after allowing for the angles. The only thing I'm not comfortable with is it looks a bit half ass maybe to my customer, while I'm rigging it all up, a single 4 point, dedicated to container lifts, with a central load ring, wire rope bridle arrangement would just look better, like I seen before and used , when my customer had one and the container rigged when I showed up. Without Googling it, I'm thinking 4 to 6 hundred bucks for the setup, the rest of the time it'd be dead weight and in the way, whereas my slings combo are used all the time in various configurations.
I install panels with screw in bolt. I thought the bow is made to fit on the hook in some cases. All panels have at least 4 lifting points for the shackles, after each lift I'm checking every single one and i can say 1/4 is little bit loose
If you have any angle in your sling, then the bow should be used as the sling collector. If you are connecting a shackle to your hook and you have multiple sling legs, then the bow should be collecting your slings with the pin facing up. Always make sure your pins are tight before you lift.
In Australia and most parts of the world I would have thought, that “cotter pin” is called a split pin. A cotter pin is a very thick pin with a flat on one side used to secure bicycle cranks to the hub.
I have also heard the term split pin, but it is not as common here in the US. When referring to the cotter pin, people often remove the "pin" part and call it a cotter. Thanks for the insight into Australian lingo! It is always useful to have a full understanding of the terminology used around the world.
Yes, this terminology seems to be unique to the US. No idea why, but they’ve been called that as long as I can remember and I can remember about 55 years now. 😁
There are a whole pile of points that would be very diferent outside the US. Most of the world outside the US has standards harmonised with european standards. 1/ we generally refeer to "bow shackles" and "D shackles" 2/ we pretty much use screw pin shackles unless it will be permanently fixed or semi-permanent. We never use lose pin shackles for anything. I would not tie my dog up with one. 3/ screw pin shackles should not be tightened, because they are prone to getting jamed under load. The pin can and in some situations should be "moused", that is secured with string, wire cabe tie or such if there is any risk that it may come undone. 4/ outside the US it is a "split pin", because that is what it is. A cotter pin is something completely different. 5/Here, I have never seen a rated lifting shackle that is not galvanised, alloy steel.. 6/ We don't use carbon steel shackles. I have never seen a stainless rated lifting shackle either in person or in a catalogue. 7/ we do not tend to derate shackles from their markings, however, bow shackles are generally rated lower than the same size D shackle. Like so many other things, the US does this different to the rest of the world. . just as a matter of interest what is the minimum safety factor applied to shackles in the US. Here it is legeslated as 4:1 minimum, but most reputable manufacturers far exceed that, often publishing 6:1 or 8:1.
Lots of great points here! The majority of these translate to US standards as well, with the exception of a couple. To your 3rd point, that screw pins are not to be tightened all the way, as they may get jammed. Jammed or not, a screw pin must be fully tightened according to manufacturer recommendations. If needed, a tool can be used to un-jam them. Outside of the US, pretty much everyone refers to a cotter as a split pin, agreed. There are a lot of linguistic differences in the lifting industry as you move from country to country, and even regionally here in the US. Most shackles that are manufactured in the US by reputable manufacturers are developed to meet US and European standards, but it is always important to check that they are still in compliance with all local regulations. The minimum safety factor in the US is a 5:1 D/d ratio. Great points! Love to hear perspectives from those in the lifting industry across the globe.
@@LiftingandRigging All good riggers back the screw pin off by a quarter turn, from fully tight. Beginners learn this lesson pretty early on. It’s just good working procedure. The reason Crosby and other manufacturer don’t say to do this is because their attorneys (who know nothing about rigging or good working practices) forbid them to say it in the official literature, for liability reasons. It’s just one of those things you will never read in the manual but it’s just passed from tradesman to tradesman, year after year.
@@psidvicious I agree with you that this is passed from tradesman to tradesman, and I understand the reasoning behind why it is done. Unfortunately, though, OSHA does not care about any of that. OSHA states that we must abide by the manufacturer's requirements for use. Even if the reasoning is coming from an attorney, this is because it has been determined that even if unlikely, there is some danger involved in backing off a pin. If an accident were to occur, all OSHA would care about was that the manufacturer's recommendations were not followed.
@@LiftingandRigging That’s because OSHA and Crosby et al. are in the same boat. Their attorneys have told them, because of the exponentially remote liability issue, don’t say that, say this. That way we’re covered. [Especially] OSHA would never say, “Yea, I know what the manual says, but I’m telling you it’s alright.” Never in a million years. If you are properly verifying your rigging after each pick, you will never have a problem, backing the pin off a quarter turn, from tight. It takes about 6 or 7 FULL turns to completely unscrew a shackle pin anyway. I would challenge anyone to show causal effect evidence that this practice has ever caused a failure. That’s why tradesman continue to pass this practice on to the next generation. We know it’s safe AND it’s good working practice. You’re just not allowed to write it down or say it out loud.
This was a very common practice in the past and is often knowledge that is passed down from older riggers to younger riggers, but it is now considered an unsafe practice, and here is why. Yes, the shackle may tighten down more when you lift; that is why there is a hole in the pin. A tool can be used to pop it loose. When you back off the pin you leave a small gap. If the load shifts to one side of the shackle while being lifted you run the risk of widening the spread of the shackle. Now the pin no longer fits the way it was designed to, the shackle body has been compromised, and the shackle needs to be removed from service. It is no longer safe for use. There is also a slight risk that the shackle can loosen more, if not hand-tight when the initial load is lifted off the ground. ASME B30.26 states that the shackle pin needs to be hand-tight and we need to comply with ASME standards and the manufacturer's recommendations for use.
It is up to the employer to deem someone qualified. Check out this article/video that helps explain the different qualifications. There is also a free download that explains how an employer can deem an employee as competent, qualified, designated, and certified. www.mazzellacompanies.com/learning-center/osha-definitions-of-competent-qualified-designated-certified-persons/
The dorks criticizing your delivery of info are just that-dorks. You did well, and your video is excellent. People that didn't know about shackles yesterday, know today. Thanks.
We offer both in-person and online training. If you are looking for certifications, you can work with us to schedule training through our partner, Industrial Training International (ITI). Please check out the link below and feel free to contact us with any questions. www.mazzellacompanies.com/liftingu/
Here are a couple articles that may help. What Are The Different Types of Eye Bolts Used for Overhead Lifts? www.mazzellacompanies.com/learning-center/types-of-eye-bolts-nut-shoulder-machinery-screw/ Does ASME Require Eyebolts to Have a Stamped Working Load Limit? www.mazzellacompanies.com/learning-center/does-asme-require-eyebolts-to-have-a-stamped-working-load-limit/
I'd always try to use a soft shackle over anything metal (higher strength to weight ratio with the added benefit of less flying metal if something does break)
How Can i tell apart short tons WLL from metric tons WLL in a shackle? Assuming I do not have any document at hand, just the shackle . I have seen shackles with WLL given in "T" and in "t" What is the difference?
This is a great question. Thank you for asking. In-fact, I'm going to answer this question for you in a future video, so watch for that. We reached out to the folks at CM to get an answer and this is what they said: There is a difference between the lowercase t and the uppercase T. See below. Lowercase t: Metric tons (tonnes) equal approximately 2,205 lbs Uppercase T: Short tons are 2,000 lbs All of our shackles (CM) are rated in short tons. Rigging hooks are typically rated in metric tons. I hope this helps! Thanks for the great question and look for it to be answered in a future Rigging Qs episode. Here is a link to the playlist. ruclips.net/p/PL--l2Filq_TjT3TgOJbonnxe0aMhSW74d
Hi Okello. We may be able to help you here with some remote training. www.mazzellacompanies.com/liftingu/ You can also always find a lot of information in our Learning Center. www.mazzellacompanies.com/learning-center/
SWL stands for Safe Working Load. There is no difference other than SWL is an old term that is no longer used today. SWL has been replaced by WLL (Working Load Limit.) The reason SWL is no longer used is that it implies you might be able to exceed this limit. Working Load Limit tells you that you shall not exceed the weight specified on the shackle.
Hi - My shackle is marked WLL4-3/4T - I was worried this mean it was only rated to 3/4 tonne but I think now it's actually rated to 4 tonnes and the 3/4 means 3/4" diameter of the shackle steel thickness - can you confirm please (I'm in the UK)
Hi Marc. Here is what our inspection manager Tom Horner had to say. "Without a photo I'm thinking it's 3/4" shackle with a 4-3/5T rating. There are mfgs that make them." I hope that helps.
@@LiftingandRigging - Thanks for the quick reply. I think it was confusing because the shackle in question happens to be both marked WLL4-3/4T and separately 3/4 . I feel confident now the rating is for 4 3/4 tonnes.
People are so ungrateful that they can go on RUclips and have a professional explain rigging to them that they actually cry because they dont like the "tone". Well how about go into the industry blind as an apprentice and see how fast tou learn. This is free information. Take it or leave it.😊
What crap, anyone who uses bolt shackles with a cotter pin for anything other than a permanent or semi-permanent situation or for a lift with high vibration doesn't know what he's talking about. Same for tightening the pin on a screw shackle, its common practice to back the pin off half a turn, otherwise it will often bind up and you might need a tool to take apart your rigging, wasting time, and depending on how your rigging is set up it might be a pain in the neck. Anyone who goes around and tightens the pin for repetitive lifts is a greenhorn, the pin will usually only start to back out if the load is picked up and set down multiple times, not even if there is a lot of wind or vibration, there is tto much friction to budge the pin while it is loaded. A shackle pin could back off if for whatever reason the load is being dragged or you are using come alongs (lever blocks) or winches, etc. and the load on a shackle is going from tight to slack multiple times. Real world experience.
It is not condoned by shackle manufacturers to ever back off a pin. This is an unsafe practice. The pin always must be fully tightened, even if that means using a tool to loosen it after a lift. It may in fact be inconvenient and add extra time, but should the pin loosen and an accident occur you may find yourself in some extra trouble with OSHA.
Overall safety is a combination of every aspect of a job. Yes we all know shackle manufacturers say to tighten shackle pins. For liability reasons, it is easiest for them to go that route. Ok, understandable. Is it unsafe to back off a pin an 1/8 or 1/4 turn? Is it safe to wrench down shackle pins each use? Depends on the job and who is doing the work. My point is, there is no perfect world, especially when work needs to happen. Also, manufacturers usually do their best to protect themselves. Of course Mazzella can't go around telling the public to disregard manufacturer guidelines. Theoretical work and actual work are different things. A rigger should be able to safely rig a load, tighten down shackle pins wrench-tight, set the load and remove the rigging. However, working efficiently is always a good thing to promote safety. More time spent on the job is more time a worker can get hurt. For a simple lift and set, there is zero concern the shackle pins will come loose. Rigging disconnect can become much more difficult when the riggers have to reach with tools to undo shackle pins. Potential for dropped objects increases exponentially. A rigger could die if he falls and is caught by his harness and is not recued promptly. Sure, riggers should be able to disconnect without dropping something but now you are comparing increased work and difficulty with the chance that a shackle pin will come loose and fall out. Crosby does publish pin shoulder gap allowable clearances. These gaps are allowable even after the pin is wrench tight. I have not seen similar information for other shackle manufacturers but then I haven't asked for it. I would surmise that Crosby had to show this information because generally speaking, their casting are pretty rough and their shackle pins do not always shoulder out on their shackle ears. On a small shackle you might have a 1/8" gap. This could equate to backing off a shackle pin a certain amount. I recently returned Crosby shackles for what I consider excessive shoulder gap. I typically now buy Van Beest Green Pin shackles, or if I can justity it - Skookum shackles. Anyway, some things to think about. There are times and places where shackle pins are tightened down or even moused. However, general lifting operations are not that place. Elliot is correct yet I understand what Mazzella and shackle manufactures have to say.
Don't worry, he is not welding any shackles! You are correct. You cannot weld or perform any modifications to any shackles. This is a cause for the removal of service. If you want to find out more about the removal of service criteria for shackles, check out this video: www.mazzellacompanies.com/learning-center/asme-b30-26-shackle-inspection-best-practices-for-use/
WTF You left out a Big No No, Never use a Shackle that says China or made in China, they’re usually painted red. Use only Crosby shackles made in USA 🇺🇸
This is often true but a common misconception as well. Only some shackles made in China should be used for overhead lifting. At the same time, many shackles made in China should not and cannot be used for overhead lifting. The best way to ensure your imported product is safe is to check the vetting process of your supplier as well as the shackle markings and identification. Many shackles made in China do not have a company trademark on them. This is required identification. "China" is not a company trademark. ALL shackle bodies MUST have the company name, WLL, and size forged or stamped on the shackle body if they are to be used for overhead lifting. If any of these requirements are missing, the shackle cannot be used for overhead lifting. Here is some more information on import vs. domestic rigging products. www.mazzellacompanies.com/learning-center/import-vs-domestic-rigging-products-how-to-choose-the-best/ And here is a downloadable shackle identification guide. resources.mazzellacompanies.com/shackle-markings-identification-guide -Ben
China is perfectly capable of making good quality shackles, IF you pay for them and you supervise them. Here is AU, where a lot of stuff is imported from all over the world, all lifting equipment must comply with and be marked according to local standards AND must be at least batch tested in country. Pretty much all lifting suppliers here have their own certified testing facilities. The enforcement is agressive and the fines are large. . In all countries including the US, you might be surrised how much gear is actually made in China, under brand names you know.
Highly annoying and wrong. Its called a d shackle because its shaped exactly like the letter D. A bow shackle is called a bow shackle because it looks like a bow and was formed by the blacksmith over a mold the same way bows were formed over a mold. Getting basic nomenclature wrong does nothing but cause confusion and can cause accidents when people are mis educated by self appointed internt loud mouths.
Hi. Self appointed loud mouth here. Bow shackle = Anchor Shackle. Different names. D shackle = Chain Shackle. Different names. Not sure where your complaint is. Feel free to pick up a shackle manufacturer catalogue if you're confused.
You are speaking to your audience like they are a bunch of first graders. Everything you say is hyper emphasized and all your words have upward inflections. This can be very off-putting to people and reduces the credibility of the speaker and the information being communicated. Not sure how aware you are of this, but this is how you come across to me. It looks like you are trying to produce a professional video, but your idea of professional comes across as patronizing in how much your are over simplifying your material. It is not my explicit intention to leave a negative comment, but I thought you might like to know at least how one viewer of your video interoperates your presentation.
Sorry, you aren't a fan. Many people who come to our channel are just starting their careers in the world of lifting and rigging and would like to know the basics. Just because you know everything doesn't mean everyone else does. Perhaps you might want to try some of our more advanced videos where we dive into a bit more complicated subjects. Not sure you are aware of this, but your intention, I believe, was to leave a negative comment... hence the negativity of your comment. I thought you might want to know how at least one creator of videos might interpret your comment. This is how you come across to me. -Ben
@@LiftingandRigging I can see you are in full defensive mode, but it is really not necessary. You have some good information and good content. That is not the problem. It is the patronizing tone of presenting material like your audience is a bunch of first graders. Consider just talking normally like you are having conversation with someone, and not like you are trying to speak English to someone who has a foreign tongue. It seems you naturally associate criticism was negativity. I was not attacking you. I was trying to give you some external insight that most people would not take the time to do. I hope you only succeed with your channel and with you message to educate people. But perhaps my words are lost to the complexities of your emotions. Peace to you friend.
@@kooldoozer Thanks for the "compliments." I hope you can continue to gain insightful information from the channel. Unfortunately, this is the way I present information. It is not meant to patronize, but rather to first inform and second entertain. You can't be for everybody.
@@LiftingandRiggingyeah dude he's right you got a super patronizing tone of voice and it almost sounds like your scripts are written by AI probably full of good information but I couldn't watch more than 30 seconds
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What other questions do you have about shackles?
What type of shakle, thimbles, turnbuckle, should be preferred in construction of a suspension bridge 📌 May please inform 👌🌹❤️
Where is a list of authorized dealers?
Thanks for the information, very valuable. i have a question, the round pin shackle is not listed in the ASME B30.26 even tho it is used for rigging, where can i find the specification about the use of that type of shackle? only with the manufaturer?
Why do 90% or more of people, even those that should know better, calls them clevis?! It drives me crazy,, but I don't correct them, but just go out of my way to use the proper terminolgy as often as I can. Shackles, not a clevis.
@@portnuefflyer It is just one of those terms that can change depending on your region and background. Pop and Soda.
When I was at the hardware store yesterday I had no idea what shackle to buy. After watching this video & taking notes, I feel confident to go back and get what I need. And those time stamps where great for note taking.
Thanks for watching!
Your voice is crisp and clear and presentation is simple to follow.
Thanks for watching. Appreciate the kind feedback.
This is one of those areas you never give a second thought. But now, I am SO GLAD I watched it! I can now make a much more informed decision when replacing my shackles. Thanks!
Glad you found it useful! Thanks for watching!
Thanks man,I just finished my first rigging today and watching your videos is one way to learn more about safe rigging.by watching this, I have learned something that we didn't talked about it today.
Great to hear! Thanks for watching!
This is great info, the clarity and conciseness is appreciated. It's also good to know what is appropriate by US standards, because that's going to keep us safe and reduce the chances of successful lawsuits should anything bad happen. OSHA is a concern from fines of course, but more importantly if someone gets hurt and you're intentionally doing things wrong, pretty much it opens you up to suits that your insurance doesn't cover and that could be found to be criminal.
To those saying "it's just the way we do it", I've only seen 3 ways shackles get locked up. One is somebody cranks them down like they're torquing down the ball on a hitch. It just has to be snug. Second, and most common, is somebody shock loads the system and you go WAY over working load. If you're using heavy lifting equipment, heavy cables, and light hardware, that's easy to do. If the crane is way heavier list than the load, consider bumping up the hardware to be 2x+ heavier than what's required for the load. Third is obvious, someone lets a fixed setup rust. I grew up with rigging a daily part of the business, and in 50+ years of operation we never had to cut a shackle off, and we never ran them loose. Use the right gear, use the right procedures, train your crew.
Well said, Tom!
Excellent video. Well made, very informative and easy to understand. Thank you!
Galvanized shackle is just a zinc coating process , what is the base metal of the shackle ? What is the difference between a shackle and a clevis . Very informative !
You are correct, galvanizing is a process of coating the metal. It is best to check with the individual manufacturer to find out what base metal they use for their shackle. You pose an interesting question on the difference between a shackle and clevis. A Farm and Utility clevis is not used for overhead lifting. Farm and Utility Clevises are often used for towing applications. However, the terms clevis and shackle are often thrown around interchangeably in the world of lifting and rigging. No matter what you call it, shackle or clevis, it is best to pay attention to the WLL and follow the best practices discussed in this video. Thanks for watching!
I deal in sea containers. I delivered a sale box to a gentleman once he picked the m/t 40ft standard box off the chassis with a 25 ft a 30 ft and 2 20 ft straps with a shackle at each corner. Oh. To connect everything he ran a log chain thru all strap eyes and hooked it to a 5 ton Galion crane. He got it lifted. I got the trailer out from under it. But that was the strangest rigging job I've ever seen.
I pick the larger containers often, a few times a year anyway, and use 20' and 12' straps shackled together, times 4. This give me a decent fleet angle and saves me buying and packing dedicated container rigging.
I did that many times .
@@Nudnik1 Good to hear, I've done it maybe 20 or 30 times, up to 28 K loaded boxes. The rigging and shackles were all within loading specs, even after allowing for the angles. The only thing I'm not comfortable with is it looks a bit half ass maybe to my customer, while I'm rigging it all up, a single 4 point, dedicated to container lifts, with a central load ring, wire rope bridle arrangement would just look better, like I seen before and used , when my customer had one and the container rigged when I showed up. Without Googling it, I'm thinking 4 to 6 hundred bucks for the setup, the rest of the time it'd be dead weight and in the way, whereas my slings combo are used all the time in various configurations.
Bro, u nailed, simple, point to point no fucking lagging info i loved ur way of teaching...
Sir you are doing great work I learned a lot from this video thanks for making such informative video keep it
Thanks and welcome
Thanks for the help! 1st time on the job today, wish me luck
Thanks for watching! Good luck!
Wonderful and very informative including standards which applicable. Thank u so much
Thanks for the awesome informative video!
Our pleasure!
-Ben
I install panels with screw in bolt. I thought the bow is made to fit on the hook in some cases. All panels have at least 4 lifting points for the shackles, after each lift I'm checking every single one and i can say 1/4 is little bit loose
If you have any angle in your sling, then the bow should be used as the sling collector. If you are connecting a shackle to your hook and you have multiple sling legs, then the bow should be collecting your slings with the pin facing up. Always make sure your pins are tight before you lift.
thanks for the very important and helpful information
Glad it was helpful! Thanks for watching!
In Australia and most parts of the world I would have thought, that “cotter pin” is called a split pin. A cotter pin is a very thick pin with a flat on one side used to secure bicycle cranks to the hub.
I have also heard the term split pin, but it is not as common here in the US. When referring to the cotter pin, people often remove the "pin" part and call it a cotter. Thanks for the insight into Australian lingo! It is always useful to have a full understanding of the terminology used around the world.
Yes, this terminology seems to be unique to the US. No idea why, but they’ve been called that as long as I can remember and I can remember about 55 years now. 😁
Well explained......Thanks 👍
Great Video, very informative and easy to understand,
Glad it was helpful! Thanks for watching!
Thanks for the tips. Additional knowledge
Our pleasure! Thanks for watching!
Very much helpful. Thank you.
Really amazing sessions 🌹
Thanks a lot, it helped me too deep.
Glad it was helpful! Thanks for watching!
best video. thanks for sharing
Sir thanks good information
There are a whole pile of points that would be very diferent outside the US.
Most of the world outside the US has standards harmonised with european standards.
1/ we generally refeer to "bow shackles" and "D shackles"
2/ we pretty much use screw pin shackles unless it will be permanently fixed or semi-permanent. We never use lose pin shackles for anything. I would not tie my dog up with one.
3/ screw pin shackles should not be tightened, because they are prone to getting jamed under load.
The pin can and in some situations should be "moused", that is secured with string, wire cabe tie or such if there is any risk that it may come undone.
4/ outside the US it is a "split pin", because that is what it is. A cotter pin is something completely different.
5/Here, I have never seen a rated lifting shackle that is not galvanised, alloy steel..
6/ We don't use carbon steel shackles. I have never seen a stainless rated lifting shackle either in person or in a catalogue.
7/ we do not tend to derate shackles from their markings, however, bow shackles are generally rated lower than the same size D shackle.
Like so many other things, the US does this different to the rest of the world.
.
just as a matter of interest what is the minimum safety factor applied to shackles in the US.
Here it is legeslated as 4:1 minimum, but most reputable manufacturers far exceed that, often publishing 6:1 or 8:1.
Lots of great points here! The majority of these translate to US standards as well, with the exception of a couple.
To your 3rd point, that screw pins are not to be tightened all the way, as they may get jammed. Jammed or not, a screw pin must be fully tightened according to manufacturer recommendations. If needed, a tool can be used to un-jam them.
Outside of the US, pretty much everyone refers to a cotter as a split pin, agreed. There are a lot of linguistic differences in the lifting industry as you move from country to country, and even regionally here in the US.
Most shackles that are manufactured in the US by reputable manufacturers are developed to meet US and European standards, but it is always important to check that they are still in compliance with all local regulations.
The minimum safety factor in the US is a 5:1 D/d ratio.
Great points! Love to hear perspectives from those in the lifting industry across the globe.
@@LiftingandRigging All good riggers back the screw pin off by a quarter turn, from fully tight. Beginners learn this lesson pretty early on. It’s just good working procedure.
The reason Crosby and other manufacturer don’t say to do this is because their attorneys (who know nothing about rigging or good working practices) forbid them to say it in the official literature, for liability reasons. It’s just one of those things you will never read in the manual but it’s just passed from tradesman to tradesman, year after year.
@@psidvicious I agree with you that this is passed from tradesman to tradesman, and I understand the reasoning behind why it is done. Unfortunately, though, OSHA does not care about any of that. OSHA states that we must abide by the manufacturer's requirements for use. Even if the reasoning is coming from an attorney, this is because it has been determined that even if unlikely, there is some danger involved in backing off a pin. If an accident were to occur, all OSHA would care about was that the manufacturer's recommendations were not followed.
@@LiftingandRigging That’s because OSHA and Crosby et al. are in the same boat. Their attorneys have told them, because of the exponentially remote liability issue, don’t say that, say this. That way we’re covered. [Especially] OSHA would never say, “Yea, I know what the manual says, but I’m telling you it’s alright.” Never in a million years.
If you are properly verifying your rigging after each pick, you will never have a problem, backing the pin off a quarter turn, from tight. It takes about 6 or 7 FULL turns to completely unscrew a shackle pin anyway. I would challenge anyone to show causal effect evidence that this practice has ever caused a failure. That’s why tradesman continue to pass this practice on to the next generation. We know it’s safe AND it’s good working practice. You’re just not allowed to write it down or say it out loud.
@@psidvicious Thanks for that, can't remember the last time a lawyer was on one of my jobsites.!
Great video.
Thanks, Donald!
Of you screw tightly screw pin, after lifting sometimes it can be almost imposible to unscrew without a hammer
This was a very common practice in the past and is often knowledge that is passed down from older riggers to younger riggers, but it is now considered an unsafe practice, and here is why. Yes, the shackle may tighten down more when you lift; that is why there is a hole in the pin. A tool can be used to pop it loose. When you back off the pin you leave a small gap. If the load shifts to one side of the shackle while being lifted you run the risk of widening the spread of the shackle. Now the pin no longer fits the way it was designed to, the shackle body has been compromised, and the shackle needs to be removed from service. It is no longer safe for use. There is also a slight risk that the shackle can loosen more, if not hand-tight when the initial load is lifted off the ground. ASME B30.26 states that the shackle pin needs to be hand-tight and we need to comply with ASME standards and the manufacturer's recommendations for use.
Bomba sana
Very much helpful..
Can you tell me how can I be authorized to lifting equipment inspection?
It is up to the employer to deem someone qualified. Check out this article/video that helps explain the different qualifications. There is also a free download that explains how an employer can deem an employee as competent, qualified, designated, and certified. www.mazzellacompanies.com/learning-center/osha-definitions-of-competent-qualified-designated-certified-persons/
The dorks criticizing your delivery of info are just that-dorks. You did well, and your video is excellent. People that didn't know about shackles yesterday, know today. Thanks.
Tot Crosby was the only ones too use on construction sites
I wonder if they provide trainings or workshops with certification 🥺
However I hope it could be budget friendly 😅
We offer both in-person and online training. If you are looking for certifications, you can work with us to schedule training through our partner, Industrial Training International (ITI). Please check out the link below and feel free to contact us with any questions. www.mazzellacompanies.com/liftingu/
Very informative video, thanks, but amazing how many times someone can say the word "THIS" in less then 15 minutes
Good looking shackles and good info! ... ;)
Thanks for watching!
Good to differente the kinds of Shackles. very import. well noted.
Thank you! We aim to keep everyone safe.
Good job may God bless you
Thank you! You too!
Great video. Thank you.
Glad you liked it! Thanks for watching!
Good Stuff,Great Tips😄👍🏿
Appreciate it!!
if you cant use multiple legs in a chain shackle why are the quick check marks there?
Hi sir thanks a lot u share this video can u share i bolts swl formula and total information about i bolt
Here are a couple articles that may help.
What Are The Different Types of Eye Bolts Used for Overhead Lifts? www.mazzellacompanies.com/learning-center/types-of-eye-bolts-nut-shoulder-machinery-screw/
Does ASME Require Eyebolts to Have a Stamped Working Load Limit?
www.mazzellacompanies.com/learning-center/does-asme-require-eyebolts-to-have-a-stamped-working-load-limit/
you guys rock!
great info. Thanks
Glad it was helpful!
I would wish learn all the lifting operation
this guy is too clean cut to be a rigger
Riggers shower too.
Good job keep up
Very informative
Glad you think so!
Ben, I'm setting up build a large treehouse for my family using mostly 6x6 & 4x4 beams. What's the best way to lift something like that 15ft up?
Thanks
Thanks for watching!
Hi, I like your video. Thanks
Hey, thanks
I'd always try to use a soft shackle over anything metal (higher strength to weight ratio with the added benefit of less flying metal if something does break)
He is perfect for playback at 2x speed
Thanks??
How Can i tell apart short tons WLL from metric tons WLL in a shackle? Assuming I do not have any document at hand, just the shackle . I have seen shackles with WLL given in "T" and in "t" What is the difference?
This is a great question. Thank you for asking. In-fact, I'm going to answer this question for you in a future video, so watch for that. We reached out to the folks at CM to get an answer and this is what they said:
There is a difference between the lowercase t and the uppercase T. See below.
Lowercase t: Metric tons (tonnes) equal approximately 2,205 lbs
Uppercase T: Short tons are 2,000 lbs
All of our shackles (CM) are rated in short tons. Rigging hooks are typically rated in metric tons.
I hope this helps! Thanks for the great question and look for it to be answered in a future Rigging Qs episode. Here is a link to the playlist. ruclips.net/p/PL--l2Filq_TjT3TgOJbonnxe0aMhSW74d
Well done bro
Thanks for watching!
God bless you sir
Thanks!
how much tork is necessari to apply in pin ou bolt type?
Hand tight but always check with the manufacturer
Good job sir
CROSBY ONLY
Wll 3 ½ what is ½ for?
3.5 tons. If you have a lowercase t, it is in metric tons, so your WLL is 7716.18 lbs. Capital T is short tons (US tons) which would equal 7000 lbs.
Am in Uganda am really willing to learn this technical lifting operation
Hi Okello. We may be able to help you here with some remote training.
www.mazzellacompanies.com/liftingu/
You can also always find a lot of information in our Learning Center.
www.mazzellacompanies.com/learning-center/
@@LiftingandRigging ok boss
Amazing！
Thanks for watching!
Clevis*
I’m a you tube trained rigger 😅
What is the difference between swl and wll
SWL stands for Safe Working Load. There is no difference other than SWL is an old term that is no longer used today. SWL has been replaced by WLL (Working Load Limit.) The reason SWL is no longer used is that it implies you might be able to exceed this limit. Working Load Limit tells you that you shall not exceed the weight specified on the shackle.
Hi - My shackle is marked WLL4-3/4T - I was worried this mean it was only rated to 3/4 tonne but I think now it's actually rated to 4 tonnes and the 3/4 means 3/4" diameter of the shackle steel thickness - can you confirm please (I'm in the UK)
Hi Marc. Here is what our inspection manager Tom Horner had to say. "Without a photo I'm thinking it's 3/4" shackle with a 4-3/5T rating. There are mfgs that make them." I hope that helps.
@@LiftingandRigging - Thanks for the quick reply. I think it was confusing because the shackle in question happens to be both marked WLL4-3/4T and separately 3/4 . I feel confident now the rating is for 4 3/4 tonnes.
@@marcthain3994when in doubt, call the manufacturer.
@@LiftingandRigging Sirs What do you guys mean by "4-3/5T rating"?
3/4 Shackle ,Working load Limit(tons) 4 3/4,I hope this is helpful because we are a shackle manufacturer.
👌👌
Not the Chinese one
People are so ungrateful that they can go on RUclips and have a professional explain rigging to them that they actually cry because they dont like the "tone". Well how about go into the industry blind as an apprentice and see how fast tou learn. This is free information. Take it or leave it.😊
My god....only for shackles...so many applications...
What crap, anyone who uses bolt shackles with a cotter pin for anything other than a permanent or semi-permanent situation or for a lift with high vibration doesn't know what he's talking about.
Same for tightening the pin on a screw shackle, its common practice to back the pin off half a turn, otherwise it will often bind up and you might need a tool to take apart your rigging, wasting time, and depending on how your rigging is set up it might be a pain in the neck.
Anyone who goes around and tightens the pin for repetitive lifts is a greenhorn, the pin will usually only start to back out if the load is picked up and set down multiple times, not even if there is a lot of wind or vibration, there is tto much friction to budge the pin while it is loaded.
A shackle pin could back off if for whatever reason the load is being dragged or you are using come alongs (lever blocks) or winches, etc. and the load on a shackle is going from tight to slack multiple times.
Real world experience.
It is not condoned by shackle manufacturers to ever back off a pin. This is an unsafe practice. The pin always must be fully tightened, even if that means using a tool to loosen it after a lift. It may in fact be inconvenient and add extra time, but should the pin loosen and an accident occur you may find yourself in some extra trouble with OSHA.
Ah...iron workers...
Overall safety is a combination of every aspect of a job. Yes we all know shackle manufacturers say to tighten shackle pins. For liability reasons, it is easiest for them to go that route. Ok, understandable. Is it unsafe to back off a pin an 1/8 or 1/4 turn? Is it safe to wrench down shackle pins each use? Depends on the job and who is doing the work. My point is, there is no perfect world, especially when work needs to happen. Also, manufacturers usually do their best to protect themselves. Of course Mazzella can't go around telling the public to disregard manufacturer guidelines.
Theoretical work and actual work are different things. A rigger should be able to safely rig a load, tighten down shackle pins wrench-tight, set the load and remove the rigging. However, working efficiently is always a good thing to promote safety. More time spent on the job is more time a worker can get hurt. For a simple lift and set, there is zero concern the shackle pins will come loose. Rigging disconnect can become much more difficult when the riggers have to reach with tools to undo shackle pins. Potential for dropped objects increases exponentially. A rigger could die if he falls and is caught by his harness and is not recued promptly. Sure, riggers should be able to disconnect without dropping something but now you are comparing increased work and difficulty with the chance that a shackle pin will come loose and fall out.
Crosby does publish pin shoulder gap allowable clearances. These gaps are allowable even after the pin is wrench tight. I have not seen similar information for other shackle manufacturers but then I haven't asked for it. I would surmise that Crosby had to show this information because generally speaking, their casting are pretty rough and their shackle pins do not always shoulder out on their shackle ears. On a small shackle you might have a 1/8" gap. This could equate to backing off a shackle pin a certain amount. I recently returned Crosby shackles for what I consider excessive shoulder gap. I typically now buy Van Beest Green Pin shackles, or if I can justity it - Skookum shackles.
Anyway, some things to think about. There are times and places where shackle pins are tightened down or even moused. However, general lifting operations are not that place. Elliot is correct yet I understand what Mazzella and shackle manufactures have to say.
I wonder what the guy is welding keep showing him I hope he is not welding shackles that might be a no no .
Don't worry, he is not welding any shackles! You are correct. You cannot weld or perform any modifications to any shackles. This is a cause for the removal of service. If you want to find out more about the removal of service criteria for shackles, check out this video:
www.mazzellacompanies.com/learning-center/asme-b30-26-shackle-inspection-best-practices-for-use/
WTF You left out a Big No No,
Never use a Shackle that says China or made in China, they’re usually painted red. Use only Crosby shackles made in USA 🇺🇸
This is often true but a common misconception as well.
Only some shackles made in China should be used for overhead lifting. At the same time, many shackles made in China should not and cannot be used for overhead lifting. The best way to ensure your imported product is safe is to check the vetting process of your supplier as well as the shackle markings and identification. Many shackles made in China do not have a company trademark on them. This is required identification. "China" is not a company trademark. ALL shackle bodies MUST have the company name, WLL, and size forged or stamped on the shackle body if they are to be used for overhead lifting. If any of these requirements are missing, the shackle cannot be used for overhead lifting. Here is some more information on import vs. domestic rigging products. www.mazzellacompanies.com/learning-center/import-vs-domestic-rigging-products-how-to-choose-the-best/
And here is a downloadable shackle identification guide. resources.mazzellacompanies.com/shackle-markings-identification-guide
-Ben
Interesting how he contacted CM for information instead of Crosby. Made in Chattanooga, TN.
China is perfectly capable of making good quality shackles, IF you pay for them and you supervise them.
Here is AU, where a lot of stuff is imported from all over the world, all lifting equipment must comply with and be marked according to local standards AND must be at least batch tested in country.
Pretty much all lifting suppliers here have their own certified testing facilities.
The enforcement is agressive and the fines are large.
.
In all countries including the US, you might be surrised how much gear is actually made in China, under brand names you know.
I don't think this guy is a rigger, salesman for a manufacturer maybe.
Libel
@@LiftingandRigging Truth.
Highly annoying and wrong. Its called a d shackle because its shaped exactly like the letter D. A bow shackle is called a bow shackle because it looks like a bow and was formed by the blacksmith over a mold the same way bows were formed over a mold. Getting basic nomenclature wrong does nothing but cause confusion and can cause accidents when people are mis educated by self appointed internt loud mouths.
Hi. Self appointed loud mouth here. Bow shackle = Anchor Shackle. Different names. D shackle = Chain Shackle. Different names. Not sure where your complaint is. Feel free to pick up a shackle manufacturer catalogue if you're confused.
I wonder if he talks to family and friends the same way?
Definitely annoying, though good information, so mixed feelings about the video.
Glad you found the information helpful!
-Ben
You are speaking to your audience like they are a bunch of first graders. Everything you say is hyper emphasized and all your words have upward inflections. This can be very off-putting to people and reduces the credibility of the speaker and the information being communicated. Not sure how aware you are of this, but this is how you come across to me. It looks like you are trying to produce a professional video, but your idea of professional comes across as patronizing in how much your are over simplifying your material. It is not my explicit intention to leave a negative comment, but I thought you might like to know at least how one viewer of your video interoperates your presentation.
Sorry, you aren't a fan. Many people who come to our channel are just starting their careers in the world of lifting and rigging and would like to know the basics. Just because you know everything doesn't mean everyone else does. Perhaps you might want to try some of our more advanced videos where we dive into a bit more complicated subjects. Not sure you are aware of this, but your intention, I believe, was to leave a negative comment... hence the negativity of your comment. I thought you might want to know how at least one creator of videos might interpret your comment. This is how you come across to me.
-Ben
@@LiftingandRigging I can see you are in full defensive mode, but it is really not necessary. You have some good information and good content. That is not the problem. It is the patronizing tone of presenting material like your audience is a bunch of first graders. Consider just talking normally like you are having conversation with someone, and not like you are trying to speak English to someone who has a foreign tongue. It seems you naturally associate criticism was negativity. I was not attacking you. I was trying to give you some external insight that most people would not take the time to do. I hope you only succeed with your channel and with you message to educate people. But perhaps my words are lost to the complexities of your emotions. Peace to you friend.
@@kooldoozer Thanks for the "compliments." I hope you can continue to gain insightful information from the channel. Unfortunately, this is the way I present information. It is not meant to patronize, but rather to first inform and second entertain. You can't be for everybody.
@@LiftingandRiggingyeah dude he's right you got a super patronizing tone of voice and it almost sounds like your scripts are written by AI probably full of good information but I couldn't watch more than 30 seconds
Thanks,@@dylancrouch273! 😄 Glad you enjoyed the video!
There's nothing like some over-acting to tell a story