re-direct pulley.

[MattP]

can anyone tell me a good combo for a re-direct pulley and sling?
i want something light/small quick to setup.
thanks matt

 

[Tom Dunlap]

For a double rope redi this one from ISC is my favorite. You have to use the right biner to keep the two ropes from jumping the sheave and crossing.

 

[MattP]

tom this is in the rigging and roping section haha
im looking for a rigging ri-direct pulley and sling.
i have that isa one it works good. mat

 

[Fairfield]

Is this going to be temp or a permanent setup?

 

[Gord]

These pulleys are great, I use them for lots of things. I'm not sure what size of rope you need a redirect for though.

 

[fhfr436]

[ QUOTE ]
These pulleys are great, I use them for lots of things. I'm not sure what size of rope you need a redirect for though.

[/ QUOTE ]

Your link was generic, what was the name of the pulley?
http://www.rescuesystems.com/cart2/asp/product.asp?c=0&l=Pulleys

There's one called the rigging pulley, available either with bushing or sealed bearing.

 

[Gord]

I have a few of the smallest 1' ones, four of the 2" and one of the 3". The 2" are the ones I use the most.

 

[Rupe]

I have a couple of ISC 50Kn gold pulleys on loopie slings, very quick to set up.

 

[MattP]

yep the isa pulley on a loopie sling looks good,i m useing 16mm rigging rope,
matt

 

[MattP]

this is wot i ues now. ISC Cast Aluminium Block 16mm 150kN i have two of the but thay are very heavy i want a smaller one for a re-direct,, will the 50kn isc one be upto the job? matt

 

[treesandsurf]

If you are using a pulley as a redirect in your rigging system, what percentage of the total safe working limit should you be aiming for your system.

Typically I've been rigging with blocks that are at least 75% of the SWL of my main block (usually an ISC). Maybe that's overkill??

jp

 

[Rupe]

The size of the redirect pulley would depend on the angle of the rope going through it and of course the load weight. Generally though redirects are usually used to guide the branches away from the trunk and/or into a suitable landing area. By the time you get to the larger (heavier) wood there are no branches left to put a re direct on anyway.

I know this is being simplistic but its about right.

I've never had a problem with a 50kn ISC as a redirect for branch removal, but I would often place two blue ISC cast blocks in the top of the tree as main anchors, with one of them acting as a small redirect to keep to lowered sections away from the trunk.

This is a permanent set up though, generally I consider a redirect (as implied by this question) to be something that you carry with you and place/remove/replace etc frequently, in that instance the loopie combo works well.

Another thing that I just thought of is that a redirect that is intended purely to make your life more simple (and for the groundie) i.e. to make the rigging process more efficient, doesn't necessarily need to be that strong.

If the redirect is integral to the whole system working then use a larger block type.