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Old 12-24-2013, 10:25 PM   #1
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Snatch block

So I picked up a warn snatch block( excited) only to see it was only rated for 10k. Will it be ok or will it turn into a 10lb projectile if I use it with my winch?

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Old 12-24-2013, 10:55 PM   #2
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A couple factors to consider. If you are using a synthetic line, probably not much chance of a recoil if the block fails. Also consider the direction of the pull. If you are pulling at an angle, then stay out of the bite if the block fails. It is always a good idea to say out of the bite regardless.

If you are using a steel cable, a line damper would be a good idea. I made one out of a piece of carpet that doubled as a ground mat for working on the Jeep. 10k lbs sound sufficient for a single line pull. And I would think Warn probably uses a safe working load rating that provides a cushion.

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Old 12-24-2013, 11:09 PM   #3
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Is it meant for atvs?
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Old 12-24-2013, 11:30 PM   #4
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[QUOTE="99er;6970697"]A couple factors to consider. If you are using a synthetic line, probably not much chance of a recoil if the block fails. Also consider the direction of the pull. If you are pulling at an angle, then stay out of the bite if the block fails. It is always a good idea to say out of the bite regardless. If you are using a steel cable, a line damper would be a good idea. I made one out of a piece of carpet that doubled as a ground mat for working on the Jeep. 10k lbs sound sufficient for a single line pull. And I would think Warn probably uses a safe working load rating that provides a cushion.[/QUOT

So as in a single line, are we talking a line off the winch through the block back to the jeep or to a stationary object?
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Old 12-24-2013, 11:56 PM   #5
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A couple factors to consider. If you are using a synthetic line, probably not much chance of a recoil if the block fails. Also consider the direction of the pull. If you are pulling at an angle, then stay out of the bite if the block fails. It is always a good idea to say out of the bite regardless. If you are using a steel cable, a line damper would be a good idea. I made one out of a piece of carpet that doubled as a ground mat for working on the Jeep. 10k lbs sound sufficient for a single line pull. And I would think Warn probably uses a safe working load rating that provides a cushion.

I have steel cable. And are we talking about "Single line" as in a line from the winch through the block then back to the jeep or to a stationary object???
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Old 12-25-2013, 12:23 AM   #6
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How strong is your winch? Your snatch block should be rated at least 2.5 times that amount. I'm pretty sure mine is rated for 25,000lbs. Assuming that you have a 8,000-10,000lb winch and you insist on using this 10,000 lb snatch block, never run the line back to the Jeep. It should only be used to redirect the line to another anchor point.

Frankly, you should not include this snatch block in your recovery bag where it could be misused by anyone. Call me cautious, but winching and rigging is serious business. Do not rely on line dampeners to protect you and others around you from willfully inadequate gear.
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Old 12-25-2013, 12:31 AM   #7
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How strong is your winch? Your snatch block should be rated at least 2.5 times that amount. I'm pretty sure mine is rated for 25,000lbs. Assuming that you have a 9000lb winch and you insist on using this 10,000 lb snatch block, never run the line back to the Jeep. It should only be used to redirect the line to another anchor point. Frankly, you should not include this snatch block in your recovery bag where it could be misused by anyone. Call me cautious, but winching and rigging is serious business. Do not rely on line dampeners to protect you from willfully inadequate gear.

Ok, thats the response I was looking for. I have a Warn8000lb. Like i said i got it not realizing it was only a 10k block. It will be only used as a redirection point if a cant return it
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Old 12-25-2013, 12:34 AM   #8
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A single line pull is just one line to a stationary object. Using a block and coming back to the rig is a double line pull. If you are pulling up to a block, a double line pull puts twice the load on the block. Think vectors. If the rig needs 5000 lbs to get unstuck, on a double pull, each line has a 5000 lb strain. Thus, the block has to take 10,000 lbs load.

A 90 degree pull puts 1.41 (square root of 2) times the load on the block. As the angle of the pull decreases and becomes closer to a straight pull, the load on the block decreases.
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Old 12-25-2013, 12:42 AM   #9
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Ok. Is it worth keeping or should i send it back and replace it for a 16k??
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Old 12-25-2013, 12:48 AM   #10
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Send it back and get one with a higher rating. While the math is very good to know and understand, why concern yourself with it out in the field? We have a tendency to want to over build our Jeeps. Recovery gear should be no different. At best, your winch can pull 8,000lbs. Plan around that.
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Old 12-25-2013, 12:59 AM   #11
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Yep, get a bigger block. I have a 10 ton snatch block to use for a 12k lb winch with 17k lb rated synthetic line. No way to actually know how much load is being used out on the trail.
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Old 12-25-2013, 01:07 AM   #12
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Ok thanx guys.
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Old 12-25-2013, 01:22 AM   #13
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Actually I think I will keep it and just get what i need
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Old 12-25-2013, 02:43 AM   #14
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Misunderstood the title.
When I read the title of this thread (snatch block), I thought y'all were talking about a "chastity belt".
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Old 12-25-2013, 02:50 AM   #15
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Misunderstood the title. When I read the title of this thread (snatch block), I thought y'all were talking about a "chastity belt".

Lol
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Old 12-25-2013, 02:19 PM   #16
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A couple factors to consider. If you are using a synthetic line, probably not much chance of a recoil if the block fails.
That is a fairly inaccurate misconception. Synthetic line does recoil when it fails under load. The higher the load, the higher the recoil.

If you dig around on YouTube, there are many videos from rigging companies with test beds that show how line recoils when it breaks under load. They are pretty enlightening.

The big factor is the mass of the recoiling object. Synthetic line has far less weight so the potential for damage is a lot lower than it is for the same size steel line when both are traveling at the same speed.
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Old 12-28-2013, 05:22 PM   #17
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So my dad picked me up a block from TSC it has 3 weight ratings on it. Lowest is 10k. I have a 9k winch. So with this I can only run a single line redirection pull? Not back to jeep?
Along with that if I was to use it to pull a ranger out would it be safe to run to jeep?
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Old 01-01-2014, 01:43 PM   #18
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So my dad picked me up a block from TSC it has 3 weight ratings on it. Lowest is 10k. I have a 9k winch. So with this I can only run a single line redirection pull? Not back to jeep?
Along with that if I was to use it to pull a ranger out would it be safe to run to jeep?
To err on the side of caution, I will say you are correct. To run the line back to your Jeep, your snatch block should be rated at 18,000lbs minimum.

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