Porta Wrap and rope question

[Groundman One]

Howdy,

I have a medium Porta-Wrap calling for a 9/16 max rope. My present 9/16 rope is fried and I'm going to buy a new one, but I would prefer a 5/8 just for the sake of a little extra strength, which sometimes it seems like we need.

The question: Will the 1/10 difference in size really make a difference with the smooth functioning of the Porta-Wrap, or is it more a question of balancing WLLs between the rope and the Wrap in order to avoid possible problems?

 

[woodchuck357]

Larger rope needs to run around larger drum

more because of the bend radius than anything to do with working load rating match-up. Just me, but I try to use much larger bend radii than manufacturers recommend.

 

[Groundman One]

Thanks for that.

My climber is passing by Vermeer this morning, I hope, and he'll grab me a new 5/8 rope. I think I'll get a new, and larger, Porta-Wrap as well. The stainless steel model looks nice.

The medium P-W serves us well, but every once in a while it seems we're pushing it a bit too far. In this case maybe bigger is better.

 

[imagineero]

5/8 will be fine. The bigger porta wrap will run a little smoother, but you'd be fine with the medium also.

 

[Groundman One]

5/8 will be fine. The bigger porta wrap will run a little smoother, but you'd be fine with the medium also.

Thanks.

Ended up getting the 9/16 rope. My climber phoned me from Vermeer and said the 5/8 was huge and the 9/16 looked perfect for our needs. I'm still thinking of getting the larger stainless steel Porta-Wrap. Maybe next week.

The old rope, it has seen a lot(!) of use (with a few old helmets I cleaned. It was tool cleaning day.):

View attachment 306095

The new rope. What a sweet setup! :

View attachment 306096