Alberta Land Rover Enthusiasts Club Forum

General => Technical Discussions => Topic started by: Johno753 on March 25, 2019, 08:53 PM

Title: Thinking of switching to synthetic winch line
Post by: Johno753 on March 25, 2019, 08:53 PM
Picked up a winch which should work with the bumper I have, but the steel line on it is knackered. So what's everyone using ?
Title: Re: Thinking of switching to synthetic winch line
Post by: Trevor on March 26, 2019, 10:56 AM
I just switched to synthetic on my Disco. Getting rid of the roller fairlead gains me about 1" of approach angle...and an inch is important don'tcha know!

Still running cable on the Camel. No plans to change that a it's still in good shape.
Title: Re: Thinking of switching to synthetic winch line
Post by: ugly_90 on March 26, 2019, 11:45 AM
Some winches might generate too much heat for a synthetic line? Which winch do you have?
Title: Re: Thinking of switching to synthetic winch line
Post by: pechanec on March 26, 2019, 12:52 PM
And steel still wins if you routinely abuse your winch line

Sent from my XP7700 using Tapatalk

Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on March 26, 2019, 01:03 PM
If you are planning on doing a lot of vehicle recovery winching, do it.  It is so much easier to deal with.  Get at least 3/8".  Have a good tree strap, a few shackles, an extension line and a snatch block or two.

The downsides are the cost and it needs to be replaced much more often and you need to clean it.

If you are using the winch for "work", which involves pulling things to you, steel is a lot better.  If it will just sit on the winch and only get used once in a blue moon, use steel.  The synthetic gets damage from sun and dirt.

(http://www.red90.ca/photos/albums/land-rover-trips/Mclean%20Creek/technical_winching.JPG)
Title: Re: Thinking of switching to synthetic winch line
Post by: Matt H on March 26, 2019, 09:22 PM
I like the synthetic rope for the following reasons.

You save a lot of weight on the front of your 4WD with a synthetic rope. That makes life easier on the steering and suspension components.
 
It also doesn't stretch and hold tension like wire rope so if it fails it won't cut you in half.

Synthetic rope is stronger than wire for a given size. Like wire it can fail & break but can be spliced easily without loss of strength or significant length.

Another plus is it is much nicer to handle. When the small wire rope strands break they make incredibly sharp slivers that can puncher straight though your gloves.

Doesn't rust like wire can. Wire rope needs maintenance as well to remain serviceable.

It won't kink or birds-nest like wire.

It floats!

I like wire rope because it's cheap and more resistant to sunlight, heat & abrasion......that's about it.

I'd go synthetic if you can spare the extra $$$. Especially since good quality rope has come down in price in recent years.

My 2c.
Title: Re: Thinking of switching to synthetic winch line
Post by: binch on March 26, 2019, 11:43 PM
For the safety alone I much prefer the synthetic rope.

But John and Matt covered all the big points.   

Trevor-bubba......he doesn't care as long as the trail tune are good (and LOUD) ;D
Title: Re: Thinking of switching to synthetic winch line
Post by: Trevor on March 27, 2019, 07:55 AM
Quote from: binch on March 26, 2019, 11:43 PM


Trevor-bubba......he doesn't care as long as the trail tune are good (and LOUD) ;D

True dat!
Title: Re: Thinking of switching to synthetic winch line
Post by: Johno753 on March 29, 2019, 08:43 PM
Ok looks like I should stick to a steel line for the amount of time I use it
Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on May 23, 2019, 08:48 PM
A few good take aways.

- Keep everyone well clear of the path of the rope all of the time.
- Make sure the rope is the weakest item in the chain.  The last thing you want is a flying hook or shackle due to a connection failure.
- Synthetic stretches just as much as steel, so it is still dangerous.  The much lower mass results in less energy to cause damage though.
- Steel rope is really easy to cut when it pulls over hard objects.  Don't assume it is a lot tougher for dragging things.  Use a chain (much stronger than the cable) if you need to lay onto parts of the vehicle.

Title: Re: Thinking of switching to synthetic winch line
Post by: binch on May 23, 2019, 09:51 PM
That...was a great video!   I didn't realize the synthetics carried as much energy.    I always thought they stretched but didn't recoil as much.   But the steel cable, and steel shackles...those are just plan leathal!!!!

Good find john ;)
Title: Re: Thinking of switching to synthetic winch line
Post by: Matt H on May 25, 2019, 09:32 AM
Did they have a Winch blanket on the synthetic line? I've had a synthetic line fail on me and it didn't whip anything like that. Don't get me wrong, I wouldn't have wanted to get hit with it but it didn't react like the one on the video either. 

Not sure what the point of passing cables through, beside and over the top the vehicle was as it relates to a regular recovery situation but it certainly highlights the massive forces involved and carnage should anything get in the way. Very interesting video.
Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on May 25, 2019, 09:38 AM
They wanted to show the damage when the hook hits the windshield and it was a way to force it that way. But the wire rope kept breaking as it rubbed on the vehicle despite having a sling that breaks at one tonne load at the hook end.

Earlier they showed that the winch blanket did nothing to stop the cable.  It might slow a hook though.

The breakage on the synthetic was a full load breakage on a new line so was a lot of load.
Title: Re: Thinking of switching to synthetic winch line
Post by: Matt H on May 25, 2019, 12:02 PM
Good point. Mine was a long way from being new when it failed so it would have taken less force I suppose.
Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on May 25, 2019, 12:47 PM
The rule of thumb I use is the line should have a new breaking strength at least twice the stall rating of the winch. All rigging and attachment points should have a breaking strength at least four times the winch stall.  The working load stamped on proper lifting rigging is one fifth of breaking.

This ensures that if anything fails it is the line. And, as long as you are careful to keep the line clean and inspected, it should not break as long as your do not run it across something under load.

It also means you should never run anything smaller than 3/8" line on a truck winch.
Title: Re: Thinking of switching to synthetic winch line
Post by: binch on May 25, 2019, 02:14 PM
question:  Is the stall rating the same as the winch capacity ie  My winch is an 8274-50 rated at 8000lbs.   Does that mean my stall rating is 8000lbs? ???
Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on May 25, 2019, 02:59 PM
Yes. That is the maximum line pull on the bottom layer of the drum.
Title: Re: Thinking of switching to synthetic winch line
Post by: binch on May 26, 2019, 05:29 PM
Thanks John!   good info that  ;)
Title: Re: Thinking of switching to synthetic winch line
Post by: Matt H on May 27, 2019, 10:38 AM
I'm guessing the stall rating on that dozer is a bit higher lol.
Title: Re: Thinking of switching to synthetic winch line
Post by: Red90 on May 27, 2019, 11:47 AM
155000 pounds