Crane Rigging Part 1 | Rigging math formula | Andrew Camarata this one is for you

This video is part one of a series that I am putting together on the subject of crane rigging. This video covers some of the various rigging methods, D/d ratio and a formula for calculating the tension on the rigging. I made this video based on a suggestion from a video by Andrew Camarata.
#tothetopcrane #andrewcamarata #rigging #cranerigging #cranes #construction

[@markbonham3477]

I was an oilier on a crane when I was 20 years old and I know shit can go bad in a heart beat if one is not aware. I became the oilier when the old man ready to retire gave a signal for raise this lift and then he decided to re-adjust the choker and he cut off all his fingers. He then said "Oh shit Mark, grab my glove as it has my fingers in it and take me to the hospital. I watched Andrew closely when he is doing his lifts and I like the fact that he is never in a hurry when he is using his cranes and I know that is so important. Andrew uses good common sense and feels his way thru these lifts however, that being said some good info like your putting out sure can't hurt! Thanks for looking out!

[@deanmartin1071]

Andrew knows everything he works with can break. You will see there is no one else around. He works alone and doesnt buy things that have a one job function when something else he has on hand will probably work and if not no one gets hurt and he goes to plan B. He also has a hell of a lot of experience moving heavy things alone and just like all the rest of us who work alone and use tools daily including chain have a sense of what will work and what the consequences are if it doesnt.

[@ask4george1]

I have commented on Andrews videos, I admire his hard work ethics. I told him that he puts the lazy, I want everything for free generation to shame . I am a journeymen hvac tech. I learned at Local 467 in CA. Just like you, there is a reason why you have to know basics. It keeps us safe on the job site.

[@meadowviewlawncarellc8079]

Never would have thought that a strain could be put on a piece of rigging more so then the weight being lifted. Learned something new.

[@timberhitchllc]

AWESOME! AWESOME! AWESOME! Thanks for bringing this information to the forum! I liked the integration of Andrew's picks as real-world examples.

[@carlwilliams8354]

Took a basic rigging class years ago as part of a Mill maintenance department training and a master rigging later. You can’t just use a bigger sling and be good. You must estimate the weight and rig it right. On of the biggest mistakes I have seen is people rigging to threaded eye bolts and side loading them! Good job with the explanation. Most people don’t realize the the sling load can be greater than the weight!

[@jenniferwhitewolf3784]

Great info!!! All those tow guys with rotator crane trucks need to see this. I seen some of those tow guys rig up lifts with very high tension on straps, nearly horizontal sling angle with pull up in the center..😳.

[@45NUTS_PART_DEUX]

Thanks for going through all of this , sling angles , types of rigging ,and inspection and any information you could pass on .

[@johnz8210]

Great video. Thanks for taking the time to help people stay safe.

[@ryanburbridge]

Awesome job bud. It’s nice to see guys helping others out.

[@andyb9767]

I listened to all the video,it makes sense. I hope it helps people so no one on gets hurt. If you want everybody to go home at the end of the day and not get hurt,there's no shortcuts for safety.

[@ToTheTopCrane]

I hope it helps keep people safe too. The goal is everyone goes home safely. Many thanks for watching! 🙂

[@petergdk]

Interesting. Cool video, where i learned something new. He had a professional company set the original spancrete panels in his video "setting spancrete roof on shipping container building" where they actually lifting panels twice as wide as when andrew did it. They very much seem to exceed the angles you outline, especially in the chain they tie around the panels in each end. Their main sling wasn't at quite as acute an angle as the setup Andrew used, but i can where he got the inspiration. But i must admit, part of why i enjoy his videos is because he doesn't work safely or correctly. Enlarging a hole for the radio in his dashboard with a chainsaw (as a joke i'm sure). Making his excavator push his truck out of mud, by making the excavator drive forward into the back of the truck, jumping out of the excavator cab, and running to the truck while everything is moving to get it unstuck, and running back to the excavator. A couple of days before he shot the video you are referring to he actually tipped his other crane on it's side going up a hill with ice on the surface. Pushing 100 foot trees down with a small excavator right next to a house. He never once cleaned cleaned of rust or paint on surfaces before welding anything, not even structural pieces. His dog is 13 years old, and i'm pretty sure has a steady diet of pizza... He has a lot of mishaps, and some expensive ones too, but it doesn't seem to stress him out. It's of course unfortunate if he puts his friends lives in danger, but from what i gather, they all seem to have the same mentality. I have yet to see a video he has made, where he does anything "the right way" or safely, and from his comments you can tell that a lot of professionals can't stand him. I myself am an electrician, and certainly wouldn't do everything the way he does them, but i don't watch him as a "how to" channel. His way of doing thing reminds me of a younger and more carefree me, making nunchucks from an old chain and pieces of broom handle, using it to zipline along a rope, precariously tied from the top of a 60 foot tree to a rock on the ground. It's fun.

[@MrCinimod93]

hahah im a sparkey too love Andrews channel still gotta cringe every time i see the panel outside on the shipping container next to the lift lol

[@66GordonBombay]

This really helps take the info from the regulations books and learning aids so we can visualize it. I appreciate your knowledge and the time you take to share it with everyone. I’m looking forward to being a safe and qualified crane operator in the future. For now, it’s back to shining up my operator’s machine :)

[@MultiGeo1993]

im glad that you made this video. i have written andrew many time about how dangerous his lifting methods are but to no avail. hopefully he will take head to your advice. like your videos too.

[@mog5858]

great stuff not too dry even I could get what you're where saying. simple and what was needed to know nothing more looking forward to more info. keep up the good work.

[@ToTheTopCrane]

Thank you! I was hoping that it was simple enough for everyone to get something out of it. Many thanks for watching! 🙂

[@BlakeC94]

Thank you for this. Really fascinated with the analytics/logistics part of your line of work.

[@lewisrayner1579]

Good job. If you haven't already gone over them. I think the most important thing for starters in working around cranes is the proper use of hand signals and designating who is going to give them. I don't care if you are using radios. You and everyone working around cranes as well as other equipment need to know and understand the universal language of hand signals. When working around cranes, thumbs up does NOT mean good job. Waving your arm does not mean stop etc.

[@paintnamer6403]

Rope (steel cable) do not lay it in the mud or dirt but have a tarp to keep it clean as practical. Rusty rope looses capacity and if you see a certain number of broken strands per foot be very aware of the new reduced capacity, if it should even be used. Something learned from DEMAG. KInks are a big nope too.

[@altonwayne4711]

just want to say thank you for all these Videos sent to us I know it takes time and dedication on behalf of you, I also appreciate those calculations and formula done on Slings it is interested if we can get more problems were we have to use those formula to and work it out by our self. Again Thank you so much for this program.

[@lwilton]

Yep. Any time a rope isn't exactly vertical the tension in the rope MUST be more than the weight it is lifting. Angle Multiplier 0 1.00 10 1.02 20 1.07 30 1.16 40 1.30 50 1.56 60 2.00 70 2.92 80 5.76 89 57.30 For the example, 3/7 is 2.33, which is 64.6 degrees.

[@richardmcdaniel6262]

Great info, thanks for sharing. I had previously watched the video you referenced and was concerned for their safety.

[@abolfazlmehrshad4487]

Thank you 😊 it was the first time I heard tension might be higher than weight 😬 I like you ♥ from Iran

[@jdhinckley1954]

This is a great series. I appreciate your taking the time to share your knowledge with us.

[@bestshrooms3283]

I enjoy Andrews video's as well as your content. As a Rigger/ Ironworker, I can say absolutely he could learn from this. It is hard to convey this to someone who has it work and falsely believes it will always. A Crosby pocket manual is a great resource for anyone involved in overhead lifting.

[@MitzvosGolem1]

excellent. Andrew was off on angles true. Love his channel. IF angle is below 30° exponential increase can occur being 20× greater or greater than weight of what's being hoisted. Add in horizontal force to buckle the piece lifted and or sling slipping inward also.

[@Torsee]

Fascinating! Math it’s everywhere!

[@scania357]

Very interesting and informative, thank you for sharing your expert knowledge🇬🇧

[@vendetta1306]

Appreciate all the explanation my brother. Dad used to run picker, and I always found the math intriguing

[@ronbriggs6905]

Really good video. Very educational

[@MrDaniel3105]

Nice education thanks for the time and effort

[@barryhansen6854]

Jimmy you nailed it as far as I used to know when working, you keep it simple and anyone should pick it up.

[@ToTheTopCrane]

Thanks Barry! Hope you all are doing ok down that way. I've seen some of the fires in AU on the news. Prayers to everyone impacted. Many thanks for watching! 🙂

[@barryhansen6854]

@@ToTheTopCrane thank for that Jimmy the total hectares burnt is 9,000,000htr and there will be a hell of a lot more before it's done I hope they learn from this and other countries that have the same problem.

[@joshwelner1951]

@@barryhansen6854 shit Barry I thought you were getting Rain and far from the 🔥 hope the best for all down there/that way

[@lesterntomson4988]

@@barryhansen6854 Thank you Barry for all your efforts!! I found you tube around 20 months ago when I had some health issues that put me on the couch. I have observed what you have done for many people. You have inspired me too do similar things to help out these content creators and people they try to help!

[@barryhansen6854]

@@lesterntomson4988 Thank-you didn't know I was so noticed.

[@jerrykinnin7941]

I remember that a basket sling is terrible for load control. And picking below CG is not recommended. But that was a long time ago. I delivered a used sale 40ft container to a place. The old man had an old crane he picked it up with four different size straps connected to the box corners with clevis pins. They ran a hook thru all the eyes and hooked the crane hook to the chain. Nastiest pice of rigging I've ever seen. The 2 longest straps were only 30ft angle was around 30 degrees. For a 8000lb box. How did it not break. PRAYER.

[@psidvicious]

Good vid Jimmy! I remember learning about load vs sling angle really just by chance, while sitting around at lunch one day, and picking up a sling and reading the tag. It’s actually quite counter-intuitive to think that the load exerted on the sling can actually be more than the actual weight of the load but, math don’t lie. It’s probably the most overlooked rigging practice out there. So, good choice on your opening video of the rigging series. Looking forward to the next one. -Any plans on taking drawing classes? 😂 (just bustin balls) 🤜🤛

[@iainbrims3776]

Great video Jimmy, one difference over here in the UK is when a sling is used in the choke hitch it's SWL is reduced by 20% ie 80% lift capacity. I take it it's just different regulations in the USA.

[@darrikboyd5805]

Another great video. Love watching your channel, always learning something! i had an oiler ask me the other day about crane suspensions. When to lock them, raise and lower, etc. I know i was curious to know back when i was just starting out. Think you can do a video in the future explaining suspensions and these procedures? It would have helped me years ago, and i could have something simple to show these newer operators to help them out.

[@paulpresto7346]

good video-I will remember the angles when I see the crew fly material and such.

[@cassrailroad5358]

Very good video, learned something today, Thanks

[@ToTheTopCrane]

Thank you and many thanks for watching! 🙂

[@waltermattson5566]

This was a little scary to watch. I have broken some rules. I don’t think I want to lift very much stuff anymore. I will be waiting for part two. Thanks for doing this.

[@Vonheals]

One additional piece of info on the never exceed angles is for included and vertical you never want to go greater than that angle. But for horizontal you never want to go below that angle I believe?

[@oldschoolmoto]

very interesting thanks

[@Reynoldscraneservice]

Hey Jimmy, just found your channel. First I think this is great information that you’re putting out, and it’s always good to have conversations about proper rigging practices. However, I don’t agree with you on one thing you mentioned regarding D/d ratios. I feel like I understand D/d ratio pretty well but I’ve never seen the OSHA regulation stating that 8/1 is the absolute minimum. That basically states that you cannot in any situation basket a wire into the crane hook or into a shackle. Yes, you need a 25/1 ratio in a mech splice choker to get 100% capacity. But from what I understand you can also take that same choker in a 6/1 ratio and it still be good for 80% of its rated capacity. This is potentially useful if you have head room issues or maybe you’ve got a 20’ sling and you need a 10’ leg. Basket the wire but consider the D/d ratio when you’re figuring the capacity of the sling.

[@nothanks2683]

Did I just see a video of you helping Andrew with his roof? If so how cool of you!

[@-TigerNews]

We are studying for the crane test and struggling with the load chart portion. How do we solve these? I have sample questions…

[@sprout5199]

Great Video. I noticed a lot of issues on the way he did his rigging, not that I know anything about rigging except for your and Ron Pratt's videos. The only thing I have an issue with is calling out Andrew by name. Your intentions are Good but other people(AGENICIES) will see this and might come down hard on Andrew. I would have just said "on an another "KZbinr" video" and then emailed Andrew. Dan in Jupiter

[@ToTheTopCrane]

Thank you! I didn't really see an issue with using his name. The reason being...he has almost half a million subscribers and 132 million video views. If he is in the spotlight, it won't be from this video. Many thanks for watching! 🙂

[@sprout5199]

Hmm, I really didn't think of it that way, as I don't have a KZbin channel. When I watch a KZbin video, to me, its more of a one on one thing, vs, a million viewers watching, if you get what I am saying. Makes sense. One request if you haven't done it yet. Can you describe the parts of a crane? I.E. jib, wire, hook, etc. I know it seems trivial, but to those who have no clue, it would mean a lot . Dan in Jupiter

[@subramanianannadurai764]

Sir, why we need a derating of 15% or 20% the capacity of crawler cranes from corresponding safe working load as per load charts? shall we lift up to 100% as in the load chart?

[@rifling7917]

we were always taught that when lifting a 4 point pick from a rigid load you base the number of legs off of 2 because only 2 legs can possibly be carrying all of the weight while the other 2 balance it.we use that same formula but always use 2 legs

[@mode1charlie170]

Jesus thats 25 degree sling angle! With transport chain!! I haven't seen his video but this guy is an accident waiting to happen. He's lucky he didn't destroy the panel or even worse kill himself or somebody else. Thanks for video jimmy, neat formula for leg tension there

[@ToTheTopCrane]

It is a very dangerous sling angle and situation. But, in his defense, he didn't know any better. So, please don't bash him or think badly of him. He just sometimes jumps in with both feet. His drive and ability to just get things done is admirable. But, at times, dangerous. Many thanks for watching! 🙂

[@ryanburbridge]

Any link to this Andrew video?

[@ryanburbridge]

Oh wow... 2:20 in his video. Ignorance is bliss. Good thing for safety factors but that’s a hard way to learn. kzbin.info/www/bejne/r6TRnqmYn9Gfidk Posted wrong video.

[@ninataylor6180]

@@ryanburbridge kzbin.info/www/bejne/mKKmYWOufcmFnLc

[@pcb1962]

@@ryanburbridge Got me very worried about that chain now at kzbin.info/www/bejne/r6TRnqmYn9Gfidk

[@TheNickoneal70]

what’s the easiest way to find sling angle using sling length and pick point distance?

[@titidumitrelnovac3253]

Respected

[@pvrs87]

Not an operator so.. I see so many crane fail videos where the lift is done in-line with the long axis of the crane and off the rear. Does that position decrease your capacity? Would many of these fails be prevented by lifting from the side over the outriggers?

[@ToTheTopCrane]

Cranes actually have a higher capacity over the rear. So, if they are turned over, it is due to overloading the crane, ground conditions, mechanical failures or all of the above. Many thanks for watching! 🙂

[@pvrs87]

To The Top Crane thanks for putting interesting videos up

[@ToTheTopCrane]

Thanks for watching them!

[@marquette6944]

Thank you for your post I'm struggling to understand this

[@chefmatthammerschmidt8408]

Length can be less than or equal to twice the height. Example if you have a length of ten feet, then you must have a height of at lest 5 feet. In other words, the line being used needs to be less than double the height. Is that accurate, Jimmy?

[@hazee8089]

Please make video on Calculating values of : Lifting Gear , Equipment weight of Tools and Plants ? Load on each leg (in Ton) ? SWL of D-SHACKLE , Bow-shackle ?

[@ninataylor6180]

Ok just so we are all clear you are saying his leg angle was under 30 degrees? because i cant find that ive looked at his and jesse's videos. Lets say I missed it whats the next issue? the chain capacity/rating? the hook on the chain and/or the link the hook is hooked to? Just trying to figure it out because you directed the video to Andrew but didn't reference anything Andrew did or even time stamp where we could clearly see the under 30 degrees so we could understand better hence my questions. So if they are 10 ton chains and we have 3 ton per chain per leg? you didnt clarify what their rating is. any reply much appreciated.

[@ToTheTopCrane]

kzbin.info/www/bejne/r6TRnqmYn9Gfidk. Right around the 3 minute mark. Also, those are 3/8 grade 60 transport chains with a SWLL of 6400 lbs, and not approved for hoisting. I'm not giving Andrew a hard time with this video. I am merely passing along information, hoping he will watch it and know how to calculate this kind of stuff.

[@joshwelner1951]

Don't take this wrong I've never run a Crain But my common sense has always said dead bottom center of basket rig is a straight line pull so just double it up coming from a commercial fishermen I pick things up from the bottom of the ocean and they weight less in water true story

[@andrewlasure7828]

👍🏻

[@caatraa1709]

Just one thing to add. for the Never exceed numbers, the Included and vertical angle it's ABOVE 120/60. however for Horizontal it's never BELOW 30. A easy quick way to remember for included angle. at 45*'s it's 50%ish of the load on each leg. at 90* it's 75%ish of the load on each leg and at 120* it's 100% of the load on each leg. *=degree.

[@ToTheTopCrane]

That's a great way to remember it. Thanks for adding all of that and for watching! 🙂

[@snakerancher]

I know you didn't make the video to knock Andrew, you just want him to be safe. You explained everything great! Shouldn't the horizontal angle be no less than 30°? Or is that what you mean by Not to Exceed??

[@ToTheTopCrane]

I do indeed want him to be safe. Cranes are much different than other machines out there. I hope he takes some classes. The NE is listed as 30° for horizontal angle. But, it should indeed be interpreted as never less than. Thanks for pointing that out. Many thanks for watching! 🙂

[@davidrigoni8231]

Interesting day, started out by .getting unloaded by a RT Tadanos, RG100xl ? Then your informative video:-):-)

[@caatraa1709]

maybe something else you could cover is the dangers of running chain/wire/slings though your pick point without having it be terminated. where it could tip and run though. it happened to Andrew twice during his timelapse on the same pick. kzbin.info/www/bejne/r6TRnqmYn9Gfidk

[@jimharris4013]

It is not his sling angle. His boom was too short for the lift. If he had more length he could have used longer chokers.:-)

[@cindytepper8878]

The one that always makes me want to run away and hide is when somebody twists the chain to shorten it. Shallow angles are just as bad though, anything that drops the load is bad.

[@ToTheTopCrane]

I agree! Anything that drops the load or could potentially cause the load to drop is bad. Many thanks for watching! 🙂

[@MitzvosGolem1]

only for towing not hoisting chains..

[@cindytepper8878]

@@MitzvosGolem1 It still drastically reduces the chain's capacity

[@MitzvosGolem1]

@@cindytepper8878 true . in nyc no chains allowed on rigging crane picks.

[@cookieshousecannabisco6963]

came in thinking this was another annoying individual using andrew's name to get some views, left knowing some genuine knowledge I can use myself on the farm and a new subscription. ♥

[@keithlewis9106]

I worked a company that was a steel mill, building the furnace, the bridge crane was set and riggers was making a lift of a brake for the wrench, it slip off the first time, because they rigged the top tension bar, crane operator on lifted a couple feet , let it down, here the problem, they rigged the same way, as lifted the load when up and came off hitting the rigger in the back. I fault the crane operator, he should have stop the lift .

[@bobby901]

Literally payed 2k for a course that told me the same thing

[@johnsmithjr5498]

One thumbs down, Andrew?

[@seansysig]

While very informative & safety forward and possibly life saving information the delivery was incredibly mundane.

[@ToTheTopCrane]

I know. Classroom type stuff is not really my forte. Also, it's math. I find it hard to get overly excited about math. Many thanks for watching and for the constructive criticism. 🙂