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Thread: Dyneema trailer winch line?

  1. #1
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    Default Dyneema trailer winch line?

    What does the group think about Dyneema / spectra / etc line for a trailer winch line?

    I need to replace the strap on the trailer winch. Sounds simple, but the drum is 3" wide and the only 3" strap I can find online is only 20' long for a boat 26'. Winding 2" wide strap on a 3" drum caused the uneven wear and ugly bunching that killed the old one. I have some 3/16" aircraft cable but that stuff gets ugly kinks and burrs that slash your fingers after being wound on a small drum a couple times. What do you think about some kind of 1/4" space-age line?

    Suggestions?
    Thanks,
    Ken

  2. #2
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    Default Re: Dyneema trailer winch line?

    Can you not sew two lengths together? Plenty of overlap and hand stitch the edges, the ends, and zigzag across ways.
    I gave up on line as it was nearly impossible to get it to lay on without crossing and burying.
    It really is quite difficult to build an ugly wooden boat.

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  3. #3
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    Default Re: Dyneema trailer winch line?

    Quote Originally Posted by Peerie Maa View Post
    Can you not sew two lengths together? Plenty of overlap and hand stitch the edges, the ends, and zigzag across ways.
    I gave up on line as it was nearly impossible to get it to lay on without crossing and burying.
    What I found is $72 for 20', I would hope not to buy another 20' to get 8'

    Ken

  4. #4
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    Default Re: Dyneema trailer winch line?

    I'm stuck on 20' being too little. At any rate, dyneema is not necessary. Retired halyard line works fine, but it will bury and jam if not wound with good tension.
    -Dave

  5. #5
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    Default Re: Dyneema trailer winch line?

    I used 1/4" Dynema on the winch for my 28', 2700 lb Shearwater yawl. the trailer had no rollers for the flat bottomed hull. The Dynema worked fine. Advantage is the small dia will all spool up on the core of the winch, keeping crank effort low.

  6. #6
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    Default Re: Dyneema trailer winch line?

    The off-road folks have been using dyneema on their winches for a (relatively) long time.

    https://www.fourwheeler.com/how-to/t...rong-and-safe/
    Steve

    If you would have a good boat, be a good guy when you build her - honest, careful, patient, strong.
    H.A. Calahan

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  8. #8
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    Default Re: Dyneema trailer winch line?

    I would put Dyneema ahead of steel wire.
    Webbing ahead of dynemma.

    Prolly Dyneema ahead of badly fitting webbing.
    It's all fun and games until Darth Vader comes.

  9. #9
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    Default Re: Dyneema trailer winch line?

    If you already have the webbing just make a 1" spacer on one side of your spool.

  10. #10
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    Default Re: Dyneema trailer winch line?

    The sailing charter fleet in The Netherlands uses dyneema more and more instead of steel cable. The steel cable causes a lot of wear and tear on the steel drums. Frank
    wwwķarandsail.nl

  11. #11
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    Default Re: Dyneema trailer winch line?

    Thanks for the link, I ordered this stuff, I will have some experience with it before 8/3, hope it works :-)


    Ken

  12. #12
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    Default Re: Dyneema trailer winch line?

    ^ Lookit that!

    Remove the anchor, seagull or mermaid from the packaging and the price miraculously drops!

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  13. #13
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    Default Re: Dyneema trailer winch line?

    Quote Originally Posted by kbowen View Post
    What I found is $72 for 20', I would hope not to buy another 20' to get 8'

    Ken
    Go to a car breakers yard and pick up a couple of seat belts. That is what I have on my winch.
    It really is quite difficult to build an ugly wooden boat.

    The power of the web: Anyone can post anything on the web
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  14. #14
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    Default

    Quote Originally Posted by kbowen View Post
    What does the group think about Dyneema / spectra / etc line for a trailer winch line?

    I need to replace the strap on the trailer winch. Sounds simple, but the drum is 3" wide and the only 3" strap I can find online is only 20' long for a boat 26'. Winding 2" wide strap on a 3" drum caused the uneven wear and ugly bunching that killed the old one. I have some 3/16" aircraft cable but that stuff gets ugly kinks and burrs that slash your fingers after being wound on a small drum a couple times. What do you think about some kind of 1/4" space-age line?

    Suggestions?
    Thanks,
    Ken

    Quote Originally Posted by kbowen View Post
    What does the group think about Dyneema / spectra / etc line for a trailer winch line?

    I need to replace the strap on the trailer winch. Sounds simple, but the drum is 3" wide and the only 3" strap I can find online is only 20' long for a boat 26'. Winding 2" wide strap on a 3" drum caused the uneven wear and ugly bunching that killed the old one. I have some 3/16" aircraft cable but that stuff gets ugly kinks and burrs that slash your fingers after being wound on a small drum a couple times. What do you think about some kind of 1/4" space-age line?

    Suggestions?
    Thanks,
    Ken

    Here you go. 3-inch winch webbing. SWL 5,400 pounds. Webbing breaking strength is 20,000 pounds. Assembly breaking strength is 16,200 pounds.

    50 feet will with a flat hook will run you about $20. Throw a chain extension on that for $10 more.

    https://www.uscargocontrol.com/shop/...dth_facet=3%22

    I suspect any decent truck supply house that caters to commercial truckers can do you as well.

    More here (made in USA): https://www.myteeproducts.com/genera...l?sln_size=336

    And here: https://www.cargoequipmentcorp.com/f...t_width=3-Inch

    Even Grainger: https://www.grainger.com/category/ma...&filters=attrs

    3-inch polyester (way less stretch) $93 for 300 feet: https://www.shipperssupplies.com/3-y...webbing-18,000

    3-in x 30 foot tow strap: https://www.shipperssupplies.com/3-x...0-cordura-eyes

    Web Breaking Strength — 49,000 lb
    Vertical Working Load Limit — 8,600 lb
    Choker Working Load Limit — 6,500 lb
    Basket Working Load Limit — 17,300 lb


    More...

    https://www.etrailer.com/s.aspx?qry=...tw-3_Inch_Wide

    https://usaratchet.com

    These guys will make you a strap up,to 300 feet long.

    https://customtiedowns.com/tie-downs...-winch-straps/








    Breaking strength, pounds.




    https://www.uscargocontrol.com/shop/...dth_facet=3%22
    You would not enjoy Nietzsche, sir. He is fundamentally unsound. — P.G. Wodehouse (Carry On, Jeeves)

  15. #15
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    Default

    Quote Originally Posted by FF View Post
    The sailing charter fleet in The Netherlands uses dyneema more and more instead of steel cable. The steel cable causes a lot of wear and tear on the steel drums. Frank
    wwwķarandsail.nl

    The big sell for Dyneema/Spectra/other exotica is the lack of stretch. Unlike nylon or wire, when the stuff fails, nobody get injured of killed. That's why tugs are using it for tow hawsers these days.
    You would not enjoy Nietzsche, sir. He is fundamentally unsound. — P.G. Wodehouse (Carry On, Jeeves)

  16. #16
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    Default Re: Dyneema trailer winch line?

    Started with steel wire. Got nasty kinks.
    Changed to webbing. That degraded quickly from sunlight, and broke. Took heavier webbing, and that overfilled the winch drum and made winching tough. Degraded anyway.
    Then put on Dyneema, and no trouble since. C.

  17. #17
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    Default Re: Dyneema trailer winch line?

    Just as a related tip to the subject matter: You can throw a blanket or some towels over a winch cable that is suspect and if it breaks, the snap back will be dissipated.

    Sorry for the drift. Carry on.

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  18. #18
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    Default Re: Dyneema trailer winch line?

    I spliced up some Dyneema (Amsteel) for my buddy on his electric dinghy davits and it works great. Just do a brummel splice so the bury can't ever come out.
    Retired. I do what I want, when I want.

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