Help indentifying this rope and usage for it.

dsptech

dsptech

Branched out member
Location
North East
I picked a 360' hank of 1/2" rope on CL hoping it was Amsteel or Tennex but I can't figure out what it is.
I know its a 12 strand rope and each strand is a bundle fine fiber and is wrapped around some strands of what appears to be some type of monofilament.
Guy said it came off a huge roll 1/2 the size of truck.
It doesn't float and does not feel like polyester or nylon to me.
Very stiff and does not have any strech to it.
The only use I can think of using as is a bull or hoist rope.









 
If I hold a flame to the rope it will melt back and start to catch on fire after a few seconds.
In the hand the rope feels like a dry hemp or fiber rope.
There are no color tracers.
It is a hollow core rope.
Each of the twelve strands has an outer core of very fine threads and the inner core has stiff and thicker translucent strands.
In the 3rd and 6th pic the skinny strand sticking out is the inner core.
 
monkeylove said:
If you can't tell what it is than it should only be used for tag lines and such. With 360ft you have plenty there to cut 20ft off and send it to TreeStuff to break test. At least you will have a general break strength before you go rigging with it.
Click to expand...
Real good advice right there. Hell, send em a few pieces. See what happens.
 
It may nor be a common practice for treestuff, but I suspect with as many people there that splice and handle rope, someone could probably identify it while it is in for the break test.
 
I agree send it to Tree Stuff I would bet it is not as strong as it may appear. I have some inexpensive rope that is hollow braid and it breaks at 850lbs. Looking at it you wouldn't think so. So I use it for a tag line.
 
I think I may have figured it out.
I'm almost positive this is original Amsteel 870, not Amsteel Blue 872.
The 870 version was made with Dyneema and Innegra Fibers unlike amsteel blue which is pure Dyneema.
Its not as strong as blue with a abs of 27000 abs.
 
I came to this conclusion by spending a 1 1/2 days obsessively reading about every 12 strand hollow braid rope I could find.
I looked at ropes from marine, utility, industrial, from all different industries.
Only Samson's Amsteel 870 has a inner core of fibers that are wrapped in Dyneema per strand.
This rope came off a massive spool but is super clean so it wasn't used in marine.
It had to be used as a hoisting line from some municipality or large outfit briefly.

I'd be happy to send them over a piece but I don't know anybody at Treestuff.
I'm just starting out in this line of work but I have ordered a few things from them already. :D
Who should I contact?
I feel a bit awkward to ask a busy company to check my used rope for nobody me.
 
Maybe these pics will help a bit more.
Those stiff fibers on the right were at the center of each of the 12 rope strands.

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dsptech said:
I came to this conclusion by spending a 1 1/2 days obsessively reading about every 12 strand hollow braid rope I could find.
I looked at ropes from marine, utility, industrial, from all different industries.
Only Samson's Amsteel 870 has a inner core of fibers that are wrapped in Dyneema per strand.
This rope came off a massive spool but is super clean so it wasn't used in marine.
It had to be used as a hoisting line from some municipality or large outfit briefly.

I'd be happy to send them over a piece but I don't know anybody at Treestuff.
I'm just starting out in this line of work but I have ordered a few things from them already. :D
Who should I contact?
I feel a bit awkward to ask a busy company to check my used rope for nobody me.
Click to expand...


They offer break test as a service. http://www.treestuff.com/store/catalog.asp?category_id=298&item=3660#detail
 
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