How Strong are Twisted Ratchet Straps?

25 apr 2021
5 490 547 visualizzazioni

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 Benson5 giorni fa
    • @Fireball Tool can you ship to canada?

    • @Coach Wilson Husky is making a reputation for themselves . i have some of their tools and bags

      Earls PearlEarls Pearl19 ore fa
    • @Tony Pie how loud they are in a temper tantrum ?

      Earls PearlEarls Pearl19 ore fa
    • Just wanted to add this method of mine to this pinned comment; Just use the tail end of the strap and tie it around the tensioned straps to help prevent them from vibrating in the wind. That is if you have enough length left after fastening down your loads. I might even make a video for everyone to see how I do it.

      The Hungry SlugThe Hungry SlugGiorno fa

      Cheki HillCheki HillGiorno fa
  • great stuff, obviously. but... i wonder how much variability there is in a given bunch of straps? just for the fun of it, it would be interesting to repeat one or two of the tests, say zero and a couple of twists and maybe the wet strap, 3 times. i think it’s (slightly) better methodology.

    tom kleintom klein11 minuti fa
  • In my wildest stretches of imagination in the early nineties when the "world wide web" was in its infancy, I never envisioned a video of a guy testing burst strength on ratchet straps. Fireball, you are amazing! Thanks for this entertaining AND instructive video. Nothing like the scientific approach to silence those who criticize or doubt without the data. Gotta love the Internets!

    DPB1947DPB194721 minuto fa
  • lovely jubbly

    Gaius teslaGaius tesla42 minuti fa
  • The results of no twist, one, four, ten and wet strap are pure example of measurement error. Your measurement equipment probably have no less than 2% measurement error. Compare results. Except 10 twists all of those measurements are into +- 2% error

    Kli-Kli Sailing vesselKli-Kli Sailing vessel42 minuti fa
  • ITworlds armchair commandos made a challenge and you accepted and proved in an epic way.

    sevensixtwo natosevensixtwo natoOra fa

    rmdvidrmdvidOra fa
  • Awesome video, Thank you for spending all that time and money to research and share these results.

    charles savoreecharles savoreeOra fa
  • How the hell does this video have over 4 million views?

    BadBilly ProductionsBadBilly ProductionsOra fa
  • Why you destroy the table soldering that piece of sh**t ?? That hurts me

    Juan Manuel Rodriguez AguadoJuan Manuel Rodriguez AguadoOra fa
  • Step #1- F around Step #2- Find out Step #3- Document it!

    Duffey WolvinDuffey WolvinOra fa
  • You should put a little cut through the edge of a strap and see what happens. If anyone wonders why straps hum and why twisting them reduces the hum, look up Karman Vortex Streets on Wikipedia.

    anonymic79anonymic79Ora fa
  • they were probably all within tolerance for the straps rating. with the one exception being the knotted strap

    Richard ERichard EOra fa
  • I used to get crap from a few friends when I strapped my kayak to the top of my van. I would put a couple twists in it to stop the vibrations. My know it all friends said my straps would break. I think they were overestimating the stresses a streamlined kayak was putting on the straps.

    Karls JuniorKarls JuniorOra fa
  • now do it again with new straps to verify it.

    K BK BOra fa
  • Small companies investing time and money in Research and development is cool, sharing what you learn with the industry and public is even cooler. (When the information gives you no major competitive advantage)

    sydney odensydney oden2 ore fa
  • Great experiment! But this test is only useful for "static loads", I would like to know how much each different sample stretched, because it looks like the more twists in the strap the less it stretched. Obviously the more the strap can stretch, the more "tough" the strap will be and more resistant to instantaneous loads, for example hitting a pothole or sudden stop would cause a large instantaneous load on the strap and a more stretchy strap would be able to "dampen" the impact, therefore making it effectively "stronger".

    Matthew HartsuchMatthew Hartsuch2 ore fa
  • "I will make it legal."

    Man, being an Atléti fan is hard.Man, being an Atléti fan is hard.2 ore fa
  • So based on the break points, which where the base and the knot there is obviously a lot stretch capacity in the cord, but the point where the stretch terminates the belt breaks.

    sydney odensydney oden2 ore fa
  • In my opinion being in a semi truck for my entire life you twist the strap to stop the vibrating and sound

    Zach NideverZach Nidever2 ore fa
  • Getting slapped in the face by a snapping ratchet strap sounds fun though.

    V1K175U RØDR1V1K175U RØDR12 ore fa
  • Interesting video, next you could try to repair and reuse those straps to see how well they hold up. Option's I can think of: 1. just re-use the longer end. cut off the tear and reconnect the hook and ratchet. 2. some sort of super strength glue 3. knot the ends together 🤣 4. sew the ends together with some good overlap. Not sure if there are special stitch patterns that would help. 5. melt the ends together? 6. weave the ends together. This one might be a huge pain / impossible. I know for sail-plane flying you can re-weave the ends of the winch rope if not using steel cables. However that is for much lower loads and they tend to slip apart when wet. 7. combine methods? melt and sew? glue and sew? I expect they will all fail much sooner than the new straps but it might be interesting how much worse they perform.

    UmmonTheLightUmmonTheLight2 ore fa
  • Pretty much as I’d expect the results to be. I always put a twist in to stop the vibration, never use knotted or damaged straps.

    Baz SmithBaz Smith3 ore fa
  • I would _never_ use such toys I only use thick rope the _Aussie Truckers Knot_ never fails

    Aloysius FlarteyAloysius Flartey3 ore fa
  • Very good! As a flatbed driver for many years, starting in '83, I was instructed by my first employer to put 1 twist on the strap to limit vibration (singing) which would cut into soft loads. If the load is tarped, there is no reason for the twist. The DOT will make you change a strap that has a knot in it.

    David LangDavid Lang3 ore fa
  • You should test one sling after 6 months of sun exposure... the strap should lost 50 % of resistance.

    Nicolas GageyNicolas Gagey3 ore fa
  • Coming from a flatbed truck driver, the main reason we twist straps is because when they vibrate, the vibration will loosen the strap. This makes driver have to continue to tighten strap every time they stop. Also, nice to know twist don’t weaken strap. Never tie a knot. Crazybird out

    Chad BlalockChad Blalock3 ore fa
  • Learning all my dads tow cables are fucked from the knots slightly concerns me now

    Davon MiltonDavon Milton3 ore fa
  • As best I can remember The Ashley Book of Knots (ABOK) states that, yes, an overhand knot in rope reduces strength by about 50%. And, it shows diagrams for testing this. Other knots, such as figure eight knots, are less detrimental.

    TesserIdTesserId4 ore fa
  • How about a painted flex seal strap is it any strong or is it even possible

    Anas salehAnas saleh4 ore fa
  • Quite pleased after cleanup

    ray nicholsray nichols4 ore fa
  • Always give it a twist, don’t listen to the fake experts on social media, they know nothing !

    David PlenderleithDavid Plenderleith5 ore fa
  • You need to test what happens if your strap is in two pieces and you connect them with the knot. I have seen those so many times..

    Eetu KaakinenEetu Kaakinen5 ore fa
  • Back to the original video to check who's a wannabee expert x-)

    DaniDani6 ore fa
  • I've always been under the assumption it weakens the strap faster than proper use ?

    Kelly ShortKelly Short6 ore fa
  • Ayy lmao

    B N GB N G6 ore fa
  • What people have to be concerned about is these are new straps, now a used strap isn't going to be as strong . You used it to pull a car out of a ditch, you had it on the trailer for 5 year's moved 4 cars 2500 bf of lumber its gotten really dirty and exposed to all 4 seasons for 5 years, how strong is your strap still? I might use 2 in place of what one new one could do. Or just replace them often they are cheap enough. Cant be too safe.

    bobbgbobbg6 ore fa
  • What? People in the comment section of the interwebs are talking out of their asses again? I cannot believe it.

  • When people tried to say it was worse to have a twist... SLAPPED BY COMMON LOGIC ONCE AGAIN.

    G48DownXG48DownX7 ore fa
  • That's a lot of damage......

    Luc ScholtenLuc Scholten8 ore fa
  • I can't understand why so many basement commandos would think it makes them weak. Have they never seen a semi truck with straps or one without the twist? The DOT wouldn't allow it if there was a problem and trust me DOT has a lot to say about securing loads and wiping butts. I guess it is possible the commandos are using their strap on a different type of load

    Jeff WomackJeff Womack10 ore fa
  • You said wet shirt no break, you should have said piss shirt bend bars. Hahaha

    Rock WashburnRock Washburn11 ore fa
  • If this person had ever talked to someone about the original reason for a twist, it might have had some different conclusions. I have fifty years experience, mostly on flatbeds. When I started we used steel cable for tie downs. Straps came out in the early 70s. They eventually found that straps that were not touching parts of the load would vibrate and wear against parts of the of the load. This would significantly weaken the strap. By adding one twist it would stop the vibration and wear of the strap.

    michael Langmichael Lang11 ore fa
  • Nice custom rig man! Good job! Very interesting.

    Joshua WoodJoshua Wood11 ore fa
  • Very cool video. Thank you!

    Matthew HendersonMatthew Henderson11 ore fa
  • I'd be interested in how the twist will affect repeated use. Maybe bring it up to 3,500 kg like 15-30 times on each test type, then try the same test as this video?

    AethentheboredAethenthebored12 ore fa
  • Those particular straps only rated to 5k

    Dean WrightDean Wright12 ore fa
  • As a truck driver I've always put 1 twist somewhere on the strap that isn't rubbing against whatever is being strapped down. Not because of the noise, but because the constant flapping and vibration can cause the straps to slide and become loose. A simple twist prevents it

    420Hazard420Hazard12 ore fa
  • Hauling oilfield equipment you learn fast , a ratchet strap not twisted can cut itself off in very short order , and no strap has a lot less strength than a twisted strap. True story.

    darryl bdarryl b12 ore fa
  • I wasn’t sure about the twists but knew it would be significantly less strong with a knot!

    Mike LundriganMike Lundrigan13 ore fa
  • great video thanks

    sergio Benitezsergio Benitez13 ore fa
  • Why don’t you do a video to see if it’s possible to remove a knot that’s been tied and tightened. I bet lot of people would like to see that

    K2C !K2C !13 ore fa
  • Knot made it like tearing a telephone book. 1 strand/page at a time.

    Zachary ScottZachary Scott13 ore fa
  • Excellent video. Man you answered a lot of myths. And now I know what to watch out for when im towing something thanks

    Thomas ShirleyThomas Shirley13 ore fa
  • Good call on testing and teaching us what knot to do.

    EGO maniacEGO maniac13 ore fa
  • Enjoyed. Useful info about the exact type of straps that I use. Thanks!

    IronSeaBee LostIronSeaBee Lost13 ore fa
  • twist keeps it from vibrating n wind

    Dirty DiegoDirty Diego13 ore fa
  • Would like to see this done using a flatbed strap winch instead of the ratchet Ratchet seems like the weak point..

    choda42choda4213 ore fa
  • This info is gonna come in handy next time I need to drive my Mother-in-Law home.

    Roy HarrellRoy Harrell13 ore fa
  • Anyone that has worked in long hauling knows that a twist or two doesn't come even close to diminishing the load capacity, but does wonders for reducing the vibrations and abrasion damage. Anyone that has done any climbing or arborist work knows that you NEVER knot a webbing unless it's a very particular knot with webbing designed for it. Hopefully seeing some numbers on a load cell will convince all the haters.

    killer guppykiller guppy14 ore fa
  • Wow. Can't believe you didn't want to use a hand pump. Lol

    Terrence RuegerTerrence Rueger14 ore fa
  • Thank you very much. I am retired now, but when we were working we used the same straps to hold steel down on a large trailer. I never put a twist into them but my son would , as you, put in a single twist. Either way, we never had a problem. I know.

    R HauserR Hauser14 ore fa
  • Look at the bright side. You managed to get the impossible knot out!

    Anti AngelofmusicAnti Angelofmusic15 ore fa
  • Thank you for this video!

    Triperipe RangerTriperipe Ranger15 ore fa
  • I subscribed because of this video. Please do more strength test/myth busting videos they are informative and entertaining!

    Andy McCorrieAndy McCorrie15 ore fa
  • What about a strap that is full of knots all over ?

    BloodThirsty StalinBloodThirsty Stalin15 ore fa
  • A little bit of project farm right here!

    Nanase ZaptNanase Zapt15 ore fa
  • Great video

    jeremy lancasterjeremy lancaster15 ore fa
  • Totally bad ass video! Thanks

    Larry WLarry W15 ore fa
  • Cool 😎

    Shadec1Shadec115 ore fa
  • Not legal

    swag lordswag lord15 ore fa
  • Try reusing the same strap just to see if it'll snap at the same lbs

    ChrisDel157 _ChrisDel157 _16 ore fa
  • Dogma is a Disease

    El Tigre De TejasEl Tigre De Tejas16 ore fa
  • It would have been better to have several ratchet straps per twist condition.

    Yevgeniy GorbachevYevgeniy Gorbachev16 ore fa
  • Myth bustedddddd

    Dimas Haryo PrajokoDimas Haryo Prajoko16 ore fa
  • Just - placing my bet on what's going to happen before I get too far into the video: I'd assume a single twist or two (like to reduce vibration) would be fine. But! I would also imagine that it's important that the twist is only in the free space where the strap isn't pressed against a corner of an object, if the strap is folded over itself instead of having the full two inch width where it bends and puts pressure against an object, then that might create weak points. Edit after watching: Wow, those are some neat results! I wish you'd show having a twist right over where the load presses on the strap still just so I could have seen what that would do - since that'd be like someone not straightening out a strap when they throw it over something. I've seen that done before and worried about it. I also wonder at what pressure that "stress/heat" starts to occur at. In the 1-twist one where you show the stress running along the strap @7:34 , if that occurs before the 3000kg mark, it might mean the strap will still wear faster, and may fail after several uses, where as the no-twist strap didn't get those stress marks running along it (it seemed).

    nighthawk475nighthawk47516 ore fa
  • Thanks. I use these regularly. Useful test and interesting results. I agree one twist a good idea to stop the oscillating, now I know it's not derating the equipment

    35 South Kiwi35 South Kiwi16 ore fa
  • Very cool!

    NinjaLifestyleNinjaLifestyle17 ore fa
  • Company I use to drive for required one twist, they said it added 5-10 percent more strength.

    John FJohn F17 ore fa
  • you didn't find the sweet spot where it has both the maximum twists and load capacity.

    syed khaja ahmedsyed khaja ahmed17 ore fa
  • 4:37 sounds like an E

    AnthonyAnthony17 ore fa
  • My job has never been this fun :-(

    Hugh SmithHugh Smith17 ore fa
  • Do a chain and binder

    Justin ValenciaJustin Valencia17 ore fa
  • Thank you for some great testing. Can I get a key to shop...

    R SmailR Smail17 ore fa
  • great video!!!

    Hector RodriguezHector Rodriguez18 ore fa
  • Fuck, and I use 4 on my 3000lb race car, so I'm good 👍

    Frank ChapaFrank Chapa18 ore fa
  • The one with no twist, 1 twist, and 4 twists could have easily been strength variation from manufacturing. It would be a good idea to test several straps at each level and then take the average.

    SqltySqlty18 ore fa
  • As a student of physical engineering as soon as I read those comments I could smell the bullshit.

    Victini MVictini M19 ore fa
  • Very interesting, thanks.

    gus gusgus gus19 ore fa
  • It is stronger if it is over 75 degrees

    the devil's beast 49the devil's beast 4919 ore fa
  • English trucker (who will now add 1 twist) just subbed for the no bullshit testing 👍

    Peter HerringtonPeter Herrington19 ore fa
  • Myth Busted.

    ThreeIdiotsInaVanThreeIdiotsInaVan19 ore fa
  • Thanks for this 👍

    Kristoffer JensenKristoffer Jensen19 ore fa
  • What about a twist at contact point. Seems like the failure point is where ever the strap can't uniformly stretch

    keith wolzenkeith wolzen20 ore fa
  • Brilliant video actually make. The Australian police apparently fine commercial vehicles $50 per twist in their straps as they seem to believe the 50% myth.

    Toby, Fire and SteelToby, Fire and Steel20 ore fa
  • I'm curious to see what the strap looks like when testing nylon straps instead of those polypropylene straps

    SartekSartek20 ore fa
  • I've never needed those ratchet straps. I just use duct tape.

    Nomlas SalmonNomlas Salmon20 ore fa
  • 1 twist per side would reduce harmonic wear and not significantly reduce the strength.

    challenger-rtachallenger-rta21 ora fa
  • Should’ve done a wet one twist to see how well better of the two compared!

  • To all the people who bitched about the twisted strap, STFU.

    Tommy SuanTommy Suan21 ora fa