Stein RC-3100 Pre-tension pulley

T

treeajnin

https://www.treestuff.com/store/catalog.asp?category_id=282&item=1634#detail

Does anyone here still use this today? what have those experienced in this pulley found to be the most practical applications for it where you really felt it was worth asking the groundy to run to the truck for it?

Im very interested in purchasing it thats why I ask.ButI hear mixed reviews from the guys at work about it being overkill and/or rarely necessary. Being a newer climber I thought id ask you all.


how has this performed for those of you using it to pre-tension trees you've just tip tied off another adjacent tree..maybe one thats leaning and you want to stand it up into the tree your rigging off of. just like a GRCS. whats too big to lift? Having only used a GRCS for this type of stuff ive been spoiled with super lifting power and dont know the limits of 3:1 system like this.
 
I own one and if I had the chance to be on the ground more often it would definitely get more use.
I find it useful for pre-tensioning loads and ginning moderate sized limbs and trees. You'll be surprised at the pulling advantage gained by just adding this pulley into the system.
If you need to do any substantial lifting, nothing is going to replace the grcs. But for the price and weight difference this pulley has its advantages.
I've also used it as a redirect when skidding logs. With the pulley exposed it's very quick putting rope on and taking it off the pulley.
 
And what would happen if you were lifting a large branch and the hinge broke early so now you've loaded the pulley. How much could it handle I wonder if that stem that attaches to the prusik could break off ?
 
I've never used true blue but I'm sure tenex or any other tech cord would work just fine as a prussic.
Personally I would lean more to using a low stretch stable braid for most of the rigging applications you would want to be using this pulley for. Using true blue I'd imagine you would be working a lot harder pre-tensioning trying to pull the stretch out of the rope.
I'm not too sure about the breaking strength of prussic bar, but every piece of equipment has it's limits. According to the manual the pulley has a working load limit of 150kg or about 330lbs, so as long as you're working within the WLL of the pulley you shouldn't have a problem.
 
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According to the manual the pulley has a working load limit of 150kg or about 330lbs, so as long as you're working within the WLL of the pulley you shouldn't have a problem.

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The 150kg rating is the max recommended force you can apply when pulling down, and not a reference to the force output, from memory.

Treeajnin, you should check out fiddle blocks and other tree-pulling systems too. Might be more what you're looking for. Good luck.
 
well since the pulley isnt too pricey by any means I still want to buy it. but I still am interested in when you all think its worth setting up.

something about pre-tensioning is exciting during the job haha.

anyone got videos in action?
 
also what about using this with a portawrap? i dont see why it wouldnt work but is it as easy as it looks with the RC-1000 or 2000?
 
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... I still am interested in when you all think its worth setting up...

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The RC-3100 works great for pre-tensioning the lowering line. Simple and easy to set up and use. It is a nice tool to have.

Since it is not designed for continuous slack removal like a GRCS or Hobbs, it would make more sense to use a tool specifically designed for such, if that is what you need.

David
 
how would you use it to pre-tension a lowering line with the omni block ?

i want to buy one of these as well but it would be nice to get two uses out of it.
 
I have owned it for a year or so, but only used it a few times. Mainly due to being in the tree.
The main use is pre-tensioning, for that it works great. I actually was surprised how much power 3:1 has. I'm sure it could be used in a ton of ways. Could you use it as a pull line I wonder?
 
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also what about using this with a portawrap? i dont see why it wouldnt work but is it as easy as it looks with the RC-1000 or 2000?

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I've used with a large Porty for many years. Works Great.
Thanks Reg.
 
P.S.

Do you know how to 'sweat' a rope in to tension it?

This helps in a variety of situations where you don't need to set up a 3:1 for pretensioning, not lifting.
 
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P.S.

Do you know how to 'sweat' a rope in to tension it?

This helps in a variety of situations where you don't need to set up a 3:1 for pretensioning, not lifting.

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nope not sure what your talking about but i am interested in finding out ;)
 
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