How Strong are Twisted Ratchet Straps?

25 avril 2021
5 837 503 Vues

I'm testing the myth that a twisted ratchet strap loses 50 percent of its load capacity by putting a twist in it. So I build a test rig to find out the truth. I test everything from 1 twist to 10 twists. I even test knots and water soaked straps. Exploding them produced some pretty shocking results!

  • That red vise at 3:00 is gorgeous! What is the make?

    Alex BensonAlex BensonIl y a 9 jours
    • Damn she that big🧐🤦🏾‍♂️

      unfiltered_ reactionunfiltered_ reactionIl y a 7 heures
    • Real men don't use the word gorgeous

      Mitchell WardMitchell WardIl y a 22 heures
    • How old is that machine on the right next to red vise?

      AtyrauskiAtyrauskiIl y a jour
    • @Trey Kernea Ha Ha

      Phil SartoriPhil SartoriIl y a 2 jours

      Bad WookieBad WookieIl y a 3 jours
  • "Don't do this at home" 😂😂😂 Sometimes that warning is totally unecessary, we don't all have massive, fully equipped workshops and trucks to take cover behind.

    James ButlerJames ButlerIl y a 5 minutes
  • All of these tests are completely invalid. You weakened the straps by not slapping them a couple times and saying “that ain’t goin anywhere.”

    Khristoffer SmithKhristoffer SmithIl y a heure
  • Really good test, showing us what "not to do" with straps. Nice.

    DudaszDudaszIl y a heure
  • I wish we had a table like that where I work.

    midi510midi510Il y a heure
  • Great test. Thank you for doing this!

    Donald ChapmanDonald ChapmanIl y a heure
  • Great information. Every flatbed trailer driver should watch this video along with DOT.

    Mark ManceMark ManceIl y a heure
  • 10 youve made rope

    therugergeneraltherugergeneralIl y a heure
  • Interesting that even with the knot the breaking strength was still over the official working load limit.. Not a good idea to knot them, but if it's the only strap you've got in an emergency it'll still handle the working load for at least a little while.

    No YbNo YbIl y a 2 heures
  • 1 twist good, 10 twists-not good

    Denver YoderDenver YoderIl y a 2 heures
  • Super test !

    Reactor MovieReactor MovieIl y a 2 heures
  • Great information! Thanks!

    Mark GetzMark GetzIl y a 2 heures
  • Simple physics calcs will tell you, until you change the mass on mass ratio by constricting the fibers that create the straps strength, nothing is going to change. In fact, combining fibers in certain scenarios would increase it's linear tinsel strength.

    Sven3xsSven3xsIl y a 2 heures
  • Knots and bends reduce strap and rope strength by 50% each additional knots by 25% Twists allow a little bit of stretch. An actual rule I learnt in trades school.👌

    Kyle ThompsonKyle ThompsonIl y a 2 heures
  • This was an awesome experiment- thanks a lot for sharing!! 🙏🏻

    Pernilla ArtisticPernilla ArtisticIl y a 2 heures
  • compromise is the word people seem to have forgotten. Even with a possible reduction in strength, it could still be an acceptable compromise of strength for the real world wear (to both strap and load) and noise. All the vibration isnt doing the strength of the strap any good either.

    Black70FastbackBlack70FastbackIl y a 3 heures
  • Well, guess ill have to correct my habit of twisting my knotted straps that were left in the rain last night.

    Black70FastbackBlack70FastbackIl y a 3 heures
  • sensible feedback

    merlin 13merlin 13Il y a 3 heures
  • Excellent video, thanks for going to all this trouble. Good to know that the product hits the design specs. But in today's world of engineered materials and software for design, it's about right. Companies today know what they are doing and their engineers hit the mark on specs. I would love to see this done in a real world scenario. Not to break the strap but to see what going over bumps does to the stress level. Maybe hook up that fancy scale meter thing and haul butt with a heavy load over bumpy roads. See what #s you get.

    Lucky 13 FarmsLucky 13 FarmsIl y a 3 heures
  • Well done! I have always put a twist in my straps to avoid the vibration caused by wind. Vibrations generate heat and wear in the no twist straps. I would like to see this same test done on used straps, some applied flat vs some applied with a twist.

    Leo McNallyLeo McNallyIl y a 3 heures
  • Why do they always break just outside the ratchet? You'd think this would be random, or even inside the ratchet as that is a different condition as the rest of the strap. Does make sense that the short section between the ratchet and the hook is doubled up to ensure it doesn't break there to cause the ratchet to become a projectile

    Ace DecadeAce DecadeIl y a 4 heures
  • The knot breaks so easily because you're not pulling on an even strap anymore, you're tearing the closes edge. With the twist you're pretty much still effectively straight on though, so they keep nearly all their strength.

    lolrofllolroflIl y a 5 heures
  • Thank you so much, i really have been missing Myth Busters. i commend you for being willing to put your meter at risk for science.

    Paul BarwickPaul BarwickIl y a 5 heures
  • Every man who is watching this is literally salivating at the his shop and all the cool tools. I'm now a subscriber, just to see what else is going on.

    M DaleyM DaleyIl y a 7 heures
  • Wet and twisted?

    Lee MungerLee MungerIl y a 7 heures
  • Cut straps?

    Lee MungerLee MungerIl y a 7 heures
  • You should have filleted the d-rings when you welded them

    MyLonewolf25MyLonewolf25Il y a 9 heures
  • I use to get straps from a friend who worked at American Airlines in Missouri maintenance center they change those straps ever so many months

    John AdamsJohn AdamsIl y a 10 heures
  • I got a tool I would like to send you.

    Domino DiamondDomino DiamondIl y a 10 heures
  • Shoulda just asked a trucker

    Kevin McNeillKevin McNeillIl y a 12 heures
  • It's like having an A10 gun right behind you

    NAVYCalvinNAVYCalvinIl y a 13 heures
  • That was a pretty cool test, I too have always put one twist in my straps for wind vibration reduction.

    JJIl y a 14 heures
  • No test for frozen straps, twisted or otherwise? And is there anybody with ideas as to why a majority of the straps failed at the same location?

    Gence NointeliGence NointeliIl y a 14 heures
  • don't you just hate it when you're carrying a load and you hit that bump and your load flies out and lands in front of you dang it lol thanks for uploading always was curious but not one of the haters but new subscribers

    Family AdventuresFamily AdventuresIl y a 14 heures
  • I drove flatbed OTR. I always put a twist in my straps. 1 on each side. Kept them quite, wouldn't vibrate, or destroy the load. My trailer had winches that would slide attached to the underside of the deck.

    ADK_702ADK_702Il y a 15 heures
  • Also proved that the straps are not rated for 10000lb break capacity. They did come close though 👍

    Andrew BurkinshawAndrew BurkinshawIl y a 17 heures
  • The heat in the knot under tension may have melted and weakened the fibers in the strap. Heat may be causing some of these strap failures.... just sayin'.....

    RBRBIl y a 17 heures
  • Why is the working load weight and the breaking weight different?!

  • I'm wondering if you took it to 3000kg multiple times if the twisted strap gets weaker. As it will put more wear on the strap.

    Nathan BertrandNathan BertrandIl y a 17 heures

    Fred BrilloFred BrilloIl y a 18 heures
  • Can you knot? I cannot.

    Innocent_BystanderInnocent_BystanderIl y a 18 heures
  • These are very good straps. The model appears to be from Harbor Freight. I have a bunch of them. Interestingly, they broke at right around their rated strength. I'll be making sure there are no knots. Thanks, this is a great video. 3 of them make for a good comealong alternative. Two to ratchet and one to hold. I moved hottubs with them. Safety advisory - these things are under 1600lb of tension as shown in the video. Keep your head away from the ends. I once had it slip and fly into my face. There was no injury, but I got lucky.

    Leonid KnyshovLeonid KnyshovIl y a 18 heures
  • Yeah, let's put the "Strap-on" and break something... 😜😎 K-9 0Ut...

    the.L.A -The Liberation Army-the.L.A -The Liberation Army-Il y a 18 heures
  • As a retired science teacher, I'd give you an A+++ for your experiment. One variable, all the rest controlled. You are a true scientist! I subscribed!

    nasa1954nasa1954Il y a 19 heures
  • You're not supposed to tighten the ratchets that much.

    Roy BattyRoy BattyIl y a 19 heures
  • Damn, This was a great video. THANKS!

    Darren TillmanDarren TillmanIl y a 19 heures
  • Are the wheels on your welding cart, road wheels from a tank?

    Jed-Henry WitkowskiJed-Henry WitkowskiIl y a 19 heures
  • My mechanical engineering classes have always shown me to trust the numbers. The only thing i would have done differently is multiple test per configuration but for the average DIYer this served the purpose. The fact that on all but the 'knot' test the strap broke at the ratchet but i'm sure the manufacture knew this and is comfortable with it. Also good to see that the stated strength was accurate. I was expecting it to be overstated but due to these being used on DOT loads the manufactures would not want a lawsuit. Very informative and interesting to watch.

    rog vanrog vanIl y a 20 heures
  • Not many people have common sense with these things though, a twist would reduce the effectiveness of a strap, but you don't need to worry too much if your loads are light, like putting a boxed tv in the back of your pickup. Even untwisted straps lose a lot of their load rating simply by using them in the first place. I worked in transport for a while and you just need to use common sense and get trained in load restraint if you need to. If a load weighs 2500kg, using 1 strap rated at 2500kg is not going to hold the load.

    thesteveusthesteveusIl y a 21 heure
  • One thing is missing from the test, the wind flap factor.

    ChillLetsPlaysChillLetsPlaysIl y a 22 heures
  • Did they come with a warranty since they never made 10K ?

    B AnnoB AnnoIl y a 22 heures
  • i think it would make it stronger deffo not weaker

    alexander cameronalexander cameronIl y a 22 heures
  • Must be Canadian straps

    Jonathan WardJonathan WardIl y a 22 heures
  • Shame! All the millions of boomera saying a twist is 50% less, stoopid boomers make too much noise. I've tied down tight loads with twists and the straps last forever.

    Mitchell WardMitchell WardIl y a 22 heures
  • What is the ballistic strength of that plate steel?

    Jed-Henry WitkowskiJed-Henry WitkowskiIl y a 23 heures
  • You should recreate this test driving 70mph down the road. I bet with wind vibration reduces the strength of the strap

    Christina SchaeferChristina SchaeferIl y a 23 heures
  • Thank You. Very practical and useful. Can we now do ratcheting chain tie-downs vs the arm-breaking types?

    Clessandra PippenschnottClessandra PippenschnottIl y a 23 heures
  • FireBall, Thanks for your demonstrations. The heat generated in the tight straps, reminds me of the time I was on a ship trying to dock at Adak, AK (we called it the “birthplace of the winds”). We had one tug pushing us and about 300 feet of hawser pulling us stretched between a bollard on the dock and a with the other end looped around a capstan on our ship. But it wasn’t enough - the wind was winning. The hawser was stretched so tight that it was completely out of the water and *steaming*. For fear of it breaking, the deck crew were hesitant to go near it, and the first mate, himself, had to come down and throw it off. In your tests, if you were to have raised the tension very slowly so that it had time to stay cool, would the breaking tension have been higher? To what extent was the temperature the cause of or the result of the breaking?

    John HerbsterJohn HerbsterIl y a jour
  • I don't know why this showed up in my recommended, but I'm glad I watched it. I had a co-worker who used to insist that having a twist in the ratchet straps greatly decreases its load capacity. I never felt like arguing with him even though the one year of engineering I took back in university was enough for me to question his wisdom. Unfortunately, that co-worker has since moved on to another job so I can't show him this unless I want to be really petty and share it on his Facebook.

    PhlebasPhlebasIl y a jour
  • Great test. (Nice toys, too.)

    fractodefractodeIl y a jour
  • How about an old sun beat strap

    27 Evan27 EvanIl y a jour
  • Have not seen the test. But i dont believe the strap will be more than 1 percent weaker. I will see.

    CAYMAN987CAYMAN987Il y a jour
  • Looks like the slot the strap feeds through compresses under the pressure which shears the strap

    superhawk138superhawk138Il y a jour
  • So um... does warranty cover this?

    Jc CohenJc CohenIl y a jour
  • Awesome video and it shows by the views. How about a long term test using the same rig showing what weather and sunlight does to the straps performance.

    Street Freaks Racing VideosStreet Freaks Racing VideosIl y a jour
  • Ah so that's how you get a knot out of a strap.

    David EplerDavid EplerIl y a jour
  • Now get 2 year old used straps and test them and see if their values remain the same

    GambiGambiIl y a jour
  • Call me crazy but, I was wondering if the ratchet part might fail.

    carpballetcarpballetIl y a jour
  • The reason twisting a strap causes it to not vibrate is because of the fact that the twist causes air to not just go across the strap, but to travel up and down it's length as well. Straps, like flags, will be subjected to a phenomenon called wake vortex shedding. As the air goes around the strap it creates a wake. As this wake passes it, it creates a vortex. These vortices alternate back and fourth due to pressure differences on the strap's sides, and thus impart an alternating pressure on the strap that causes it to vibrate at it's resonant frequency. Twisting it separates these overlapping vortices from each other and thus eliminates the flapping. These vortices are why flags flap, and why fish swim in the wake of stones in a river to conserve energy - they're surfing on these vortices to propel themselves against the current with minimal effort. You might also see smokestacks with twists on them - those do exactly the same thing as twisting the strap, and prevent the stacks from oscillating.

    Logan CarbinLogan CarbinIl y a jour
  • is it just me or did anyone else get serious naruto battle music vibes off that intro music

    Logan CarbinLogan CarbinIl y a jour
  • Wow what a great video! These keyboard wizards sitting and disliking have not spent a dime to test these straps but still run their mouth! Nice shop! I subscribed!

    KevinKevinIl y a jour
  • Do you have a reason why the straps always break at the ratchet?

    Vincent SantamariaVincent SantamariaIl y a jour
  • The thumbnail looked like how I tried to play halflife alyx

    bullfrogethbullfrogethIl y a jour
  • Interesring

    excelexcelIl y a jour
  • Can you soak one in liquid nitrogen and then tested

    Scott HamillScott HamillIl y a jour
  • I’ve never heard this myth. As an air assault load master, we never put twists in any of the tie downs. Having said that, some people use the twists to counteract the loud vibration noise caused by the wind at high speeds.

    ThesaurusThesaurusIl y a jour
  • Can you do one using the free rope from the Home Depot exits? Thanks, 🤘

    Just King AdrianJust King AdrianIl y a jour
  • Awesome post. Thank you.

    Scott PerkinsScott PerkinsIl y a jour
  • One twist is all I use in my 4in straps on my flatbed been doing in on high loads ever since I started trucking..those idiots leaving you comments saying it reduces strength have no clue what they're talking about and have never hauled shit. Putting one twist in the strap reduces vibration which means it won't loosen up 👍🏻

    trucker dude91trucker dude91Il y a jour
  • thanks for doing the research and dispalying the numbers the whole time, humans are terrible at remembering numbers

    PflasterstripsPflasterstripsIl y a jour
  • I bet if you had a way to induce the vibration that not twisting the strap causes you would see a reduction in strength over time.

    Daniel DunhamDaniel DunhamIl y a jour
  • I love your shop

    xccessxccessIl y a jour
  • I want 1 those cameras

    CentermassCentermassIl y a jour
  • Follow up test. Two new straps on the same load. Twist one, leave the other flat and take on a trip. Then load test them both, see what the vibration did to the strength of the strap over the course of time

    Jerry FickJerry FickIl y a jour
  • Who are the 2.3k idiots who did not like this video? You did a great job. Thank you very much. And I also put twist in my straps to avoid vibration.

    Richard LindenRichard LindenIl y a jour
  • Thank you for your time testing 😎

    Tim TTim TIl y a jour
  • Put the strap on and break something, that's what she said!

    Thomas CrumThomas CrumIl y a jour
  • Thanks for the video. After all the breaks occurring in almost the exact same spot. I wonder what the results would be if you move the ratchet and the meter to the opposite side. I wonder if they would continue to break on the racket side, indicating maybe a difference in the angle. Or if they would still break on the left side of the table indicating Maybe the Jack was slightly off-kilter. Any thoughts?

    Chris LaneChris LaneIl y a jour
  • Thank you. Water Knot not a good plan to shorten straps. This may have saved my life.

    James CrouchJames CrouchIl y a jour
  • Only use these kind of straps on the farm to hold things in place when moving. Learned right away they don't pull a lot of weight. lol. From amazon car hop trays.

    Classy Chassey Car Hop TraysClassy Chassey Car Hop TraysIl y a jour
  • I don't have an opinion either way but I noticed at your introduction you were talking about shock forces and than you tested constant forces. I'd like to see a similar test with something more instantaneous. Ramset maybe?

    Publius IIPublius IIIl y a jour
  • I would like to see you some straps in fuel, oils, and various chemicals and show the results.

    Tom EddyTom EddyIl y a jour
  • Well planned, prepared and executed series of experiments using professionally set up hardware. Impressive!

    Les VorosmarthyLes VorosmarthyIl y a jour
  • Nice testing. Useful info to know.

    SteamrickSteamrickIl y a jour
  • Should have done one twist with a wet strap.

    Tim From L.A.Tim From L.A.Il y a jour
  • Interesting to see old vs new strap performance and see how they degrade with time as an indicator for how frequently to replace them.

    stuartunstuartunIl y a jour
  • That’s was fantastic

    eyemall earseyemall earsIl y a jour
  • Super useful! Thanks!

    Craig BakerCraig BakerIl y a jour
  • I also do one twist but my straps always break haling engine blocks I leave with 8 straps and come back with shredded cheese

    overlordkyo funnymomentsoverlordkyo funnymomentsIl y a jour
    • Don't you put packing under the straps or use strap sleeves to protect your straps?

      sixfootbearsixfootbearIl y a jour
  • I feel like that is a flip and not a twist. Im curious to know if twisting from the end would yield a different result. Do you think running the strap through the ratchet in the opposite direction would affect the common fail point at the ratchet

    Charlie barkinCharlie barkinIl y a jour