Need help with winching / snatch blocks..
- Thread starter Methead
- Start date
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snatch block needs to be sized properly for your winch cable.
By either double or tripling the line you "should" have enough power. And the added safety of weight distribution over the multiple lines.
3,000 lb winches are not designed to lift 3,000 lbs, just move it.
By either double or tripling the line you "should" have enough power. And the added safety of weight distribution over the multiple lines.
3,000 lb winches are not designed to lift 3,000 lbs, just move it.
Southeast Overland
Get lost! Go explore!
Are you pulling 7,000 lbs of weight, or will you have 7,000 lbs of resistance?
You can move 7,000 lbs on flat ground with very little power. Think about pushing a car on smooth pavement. Pulling up an incline increases the resistance.
A block positioned correctly will double the power of your winch.
To get max power out of a winch (i.e. 3,000 lbs out of a 3,000 lb winch) you need to be on the first wrap of winch line. The more wraps of winch line the less power you have.
You can move 7,000 lbs on flat ground with very little power. Think about pushing a car on smooth pavement. Pulling up an incline increases the resistance.
A block positioned correctly will double the power of your winch.
To get max power out of a winch (i.e. 3,000 lbs out of a 3,000 lb winch) you need to be on the first wrap of winch line. The more wraps of winch line the less power you have.
Southeast Overland
Get lost! Go explore!
Do you mean you'll have 7,000 lbs of resistance total? Just trying to make sure I'm hearing you correctly.
Wile E Coyote
Out in the streets, they call it murder!
Nope.
The above factor is meant as a general value to account for the increased load of mud and other obstacles while winching in offroad situations.
Your specific load will require significantly less power, as was already noted above.
I think the decimal place might be in the wrong place. For a rolling object on flat smooth hard ground, the force required to move an object is 10% of the weight of the object. As the rolling surface increases roughness, softness, or grade, the force increases to move the object. If you can move the object by pushing it alone, you're at the 10% . If you need a second person, figure 15%.
