Results in for Ultralite Tree Pro (Tree Protector) straps.

[GT]

Ok, did some testing last night. These are the 2" into 1" Tree Pro's which are a 4 foot length of 2" polyester webbing with an 8 foot 1" length attached. The idea is that the 2" will go around the tree with hammock suspension from the 1" strap.
These straps are very thin, thinner than a dime. I used the least amount of stitching and smallest polyester thread that I dare use in order to rate them at a 350lb safe working load.

So the breaking strength in my hydraulic test machine was highest at 1386 lbs. Lowest was 1362.
All three 1" straps broke at the point where they were stitched to the 2" webbing. None of the stitching failed.

A set of Ultralite Tree Pro's with Ultralite Quickdraws weighs in @ 282 Grams or 9.96 Ounces.
A set of straps only which total 12' long weighs in @ 208 Grams or about 7.34 Ounces.

ultp.JPG
Completed ULTP strap
tploop.JPG
3" Loop
ulset.JPG
Set of ULTP's
ulqd.JPG
UL Quickdraw
ulsetxqdsgm.JPG
Complete Suspension Set. GRAMS
ulsetwqdsoz.JPG
Complete Suspension Set. OUNCES

I will be testing the 4' double eye 2" wide and 1" wide tree strap today for weight and breaking strength and will post those as soon as I can. I am certain that the 2" will be rated @ 500lbs and the 1" around 350lbs. (1/3rd of breaking strength) What I don't know yet are the weights but I expect them to be around 2 or 3 ounces.

Gary
Readystrap

[GT]

BTW. This is a high quality, made in U.S.A. tight weave polyester webbing.

[GT]

1"wide x 4' long Ultralite double eye (double loop) strap with 3" loops. Breaking strength 1690lbs Weight 28.2 grams or 0.995 ounces. (less than 1 ounce) "Safe Working Load Rating" 350lbs

2" wide x 4' long Ultralite double eye (double loop) strap with 3" loops. Breaking strength 3046lbs Weight 57 grams or 2 ounces. "Safe Working Load Rating" 500lbs

I tried a few types of stitches but decided on the Bar Tack with [X] inside using two types of #T90 polyester thread, twisted and bonded on top, flat filtech on bottom. It not only held better than 3 bar tacks it also looks good. And because I am in the business of selling straps to the public they not only need to be strong but also good looking.

Heres the pics.

1" strap being pulled.
1TS.JPG

2" strap being pulled.
2TS.JPG

Stitch
BTX.JPG

1" wide in Grams
grams1.JPG

1" wide in Ounces
ounces1.JPG

2" wide in Grams
grams2.JPG

2" wide in Ounces
ounces2.JPG

[jesskai]

have you ever tried making your last stitch in a > shape away from the end of the 2in so you don't have a stress point across the 1in? by the sounds of it your break strength is far over what is needed but it would be interesting to see if it has any affect. in metal fab you would do it that way if you were welding a bead

[GT]

have you ever tried making your last stitch in a > shape away from the end of the 2in so you don't have a stress point across the 1in? by the sounds of it your break strength is far over what is needed but it would be interesting to see if it has any affect. in metal fab you would do it that way if you were welding a bead

Not sure what you mean, are you talking about something like this?
huh.bmp

Not sure if it would make a difference. Any good strap I ever tested broke out in front of the stitch, usually about an inch or two as long as the stitch is good. If there is any stress released in that area by using a different stitch it probably will be minimal and if anyone is taking a strap that breaks around 1500lbs and putting 1499lbs on it, well you know what most people would think about that, right?

[jesskai]

haha ya just my brain working over time. like that but with the v the other way so your not stressing it strait along the strap. i have not knowledge of straps only metal experience i was just curious if it made a diff on fabric. i guess if its breaking an inch or two form the stitch i will not make much difference i took it that it was breaking beside the stitching. like i said not really and issue cuz if you have broken your straps you probably tried to catch a car with your hammock or you really need to hit the gym.

thanks for enduring my minds wandering

[MDSH]

Your 2-to-1" design does not distribute weight across the whole width of the 2" part.

You'd need to pinch or fold the 2 down to 1.

[GT]

Your 2-to-1" design does not distribute weight across the whole width of the 2" part.

You'd need to pinch or fold the 2 down to 1.

It is folded down to 1" at the first bar tack. Besides, I think 1300lbs is good enough for hanging a hammock anyway.

[GT]

haha ya just my brain working over time. like that but with the v the other way so your not stressing it strait along the strap. i have not knowledge of straps only metal experience i was just curious if it made a diff on fabric. i guess if its breaking an inch or two form the stitch i will not make much difference i took it that it was breaking beside the stitching. like i said not really and issue cuz if you have broken your straps you probably tried to catch a car with your hammock or you really need to hit the gym.

thanks for enduring my minds wandering

Interesting thought. If a strap was breaking at the stitch that would be something to look at. To tell you the truth it doesnt take much to make a bite that will hold a hammock camper. You could literally go back and forth a bunch of times in a 2" long line and you will probably be good to go. But I worry about appearance as well as the strength.

[MDSH]

It is folded down to 1" at the first bar tack. Besides, I think 1300lbs is good enough for hanging a hammock anyway.

But that is not the goal with a 2" strap. The goal is to distribute the weight born by the tree.

1/2" folds at 45* do not accomplish that.

A 30* fold might.

Bar tacks in 1" straps running several inches into the 2" material do not contribute to anything but final weight.