|10-06-2019 09:01 AM|
Just received my 5,000lbs ring from Custom Splice.
It's TINY...so let's hope it works...finishing isn't great with some blemished.
Waiting on my larger one soon.
Let's hope the blemishes aren't there...
|10-06-2019 07:55 AM|
or at least that's my take on it
|10-05-2019 10:09 AM|
|10-05-2019 10:05 AM|
|10-04-2019 09:13 PM|
|rapier46||I have the ones from Red Winches and they work well.|
|10-04-2019 05:37 PM|
I think this thread hasn't addressed why these rings are being used in a 4X4 application.
Like the first applications of synthetic rope, they came into the market due to competition winch events, where weight is critical not because of concern about the weight of the vehicle, but because the navigator has to run/swim/climb to the winch point and then set it up recovery as quickly as possible. Wear, long term durability etc is of secondary importance.
Conventional snatch blocks are fiddly to set up when you're on the clock, slipping down a hill, wet and tired.
The US basically doesn't have these kind of events at all, so a little time or weight saved might be of little consequence, but they're fairly common in Europe, Asia, Australia and NZ.
Personally, I don't understand the point of competition winching at all, but I'm happy to take advantage of the parts that have filtered down to recreational users, where, for example, I can save weight on a light vehicle, carry more versatile equipment etc.
Personally I think these rings are a great idea compared to a conventional snatch block. Are they for everyone? No, of course not. That's true of every part in the marketplace.
|10-03-2019 12:41 PM|
Yes, the sailing ones are tested and have a safe working load 40-50% less than breaking strength. Working loads on these are higher than the soft shackles they are connected with.
Keep in mind that Dyneema winchline as well as other material lines are rated at average breaking strength. Strength of a soft shackle depends on the type of knot (button knot is strongest) and the bend radius of the eye. The soft shackle when tied properly is about 110% of theoretical break strength of the line. Any 20mm lead ring is going to be more than adequate for recovery operations.
|10-03-2019 12:12 PM|
|10-03-2019 11:04 AM|
had a lump of al rolling in my floor so i made one and took old winch rope and tied soft shackle for it.
my steel snatch block weights 11lbs with shackle.
this is 1lbs with rope shackle
|10-03-2019 10:07 AM|
Once the flange on a screw pin shackle bottoms out, it can't get a whole lot tighter. Nothing a screw driver in the hole or a crescent wrench can't fix.
Rigging up anything where the screw pin would back out is a rigging 101 fail.
Something that I've noticed on some of these ring snatch blocks, is that they are very small.
The reason normal snatch blocks are the size that they are is to keep the rope in the basket rating of a load chart. When the diameter gets below a certain point.......it's considered a choker, and the load rating gets cut way down...........like in half for a strap. Reason being, is that only the fibers on the outboard side are in tension, the inboard side (touching) are bunched up and not in tension they're just along for the ride.
Has there been any actual testing to failure with a load cell on these things? Not saying the rings themselves failing, but the loads the rope will fail at.
|10-02-2019 06:39 PM|
|10-02-2019 06:37 PM|
|10-02-2019 05:07 PM|
|10-02-2019 02:16 PM|
But if you had the pull going the wrong direction it could un-screw the shackle pin. That would suck. (other direction would make that pin really tight)
|10-02-2019 10:11 AM|
Typical price from most sail rigging supply shops is $40-60.
Also FWIW: Dyneema soft shackles premade for $20.
|10-02-2019 09:48 AM|
|Elwenil||So I am still money ahead with my $150 3/8" wire rope and $60 chinkanese snatch block.|
|10-02-2019 08:02 AM|
|10-02-2019 07:34 AM|
The package I have been putting together is 90 total which includes the aluminum ring, soft shackle, anti-flip block, a storage case, and shipping.
|10-02-2019 04:04 AM|
|Elwenil||Ok, next question, what is the cost and how does it compare to a normal snatch block?|
|10-01-2019 10:58 PM|
|rockyota83||pretty much what i figured|
|10-01-2019 09:34 PM|
|Provience||dope, thanks for clarifying a bunch of info|
|10-01-2019 09:27 PM|
Hi everyone, I finally got a bit of free time to pop in this thread. Frank let me know it was happening.
I started experimenting with this concept about 2 years ago now. As some have mentioned, this idea is not really 'new', as it has been fairly common in the marine sport sailing and arborist world with synthetic lines.
I'll hit a few high points from the thread....
-Heat. I've tried to warm them up doing full pulls with my 8274. It isn't a hot rod winch, but it has been a non-issue thus far. I'm not sure how many people are speed-winching with comp level winches while double lining for multiple pulls. For me, it has been a non issue. I haven't even been able to get any fiber bonding on the soft shackle after repeated use in the same spot.
-Cleanliness. As with any synthetic winch product, if it is clean it will last longer. How long a 'dirty' system will last is a very vague issue. I have abused synthetic line that is 8 years old that has never been washed which has gone all over the country in muddy and nasty environments.
-What turns. The RING rotates in the soft shackle under load. This isolates any wear to the soft shackle not the winch line. You can dunk the soft shackle in ring in water to remove most contaminates. The rotation of the ring will clean itself in a wiper fashion.
-Wear. I am still using the very first soft shackle I started testing with. I highly doubt people are going to use their own system in their entire life as much as I have farting around with this system, perhaps if you run a professional recovery service or teach classes. EVERYTHING wears, most standard snatch blocks use non-sealed and non-lubricated bushings for a comparison. If you run them in nasty environments they will also eventually wear. I decided to run the 'improved' soft shackle design with dual independent legs to more evenly distribute any wear over more bearing surface. It is also worth noting that UHMWPE makes an EXCELLENT low speed bearing surface. You also don't want to use a nylon wear sleeve. It can rotate under high loads which can cause damage to the line.
I noticed early on that having the ring flip out when used as a pulley was a real issue. With the vehicle assisting, or in most dynamic recoveries, the system will go slack and load itself back up. This can cause gravity or angle change to flip the ring over. It is worth noting that this is a captured system and the load will still be trapped. If the lines rub over each other you can have issues, but that will take a little time.
I designed a small block to help this issue. It also provides a few other benefits. It not only keeps the ring from flipping out, it also keeps the legs of the shackle in the proper position and also helps eliminate extra bearing loads when the shackle is connected to something smaller in diameter than the ring is wide. The smaller radius on the outside of the ring will create more wear. It is best to evenly distribute the load over the inner radius as much practical.
This is what my current package looks like. I believe I still offer the best overall package for a complete system. If you are interested please drop me a message.
|09-30-2019 09:07 PM|
|09-30-2019 04:16 PM|
|09-30-2019 02:09 PM|
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