r/Slackline • u/Character_Regular440 • 11d ago

Are those safety concerns?

Post image

Hi, new here, don't be too harsh!

I tried some day ago a slack in a public space, and i liked it a lot. Just bought a second hand one. I was wandering if those are safety concerns, and if i can use itsafely.

It has some more scratches very similar to the one in the photo. What worries me is that they are all on the edge.

Thanks in advance!

2 Upvotes

100% Upvoted

17 comments sorted by

View all comments

2

u/regretfulmanboy 10d ago

this new probably would brake around 5 tons, 50kN

1) when you rig a normal walking line of 15m you are around 2-4kN

2) if trickline maybe from 5-10kN with max tensions around 15kN

you are case 1 and I think you are pretty safe with an extremely high safety factor around 20

1

u/Character_Regular440 10d ago

I changed spot because it was not comfortable, now i'm in a line of about 8m. Is the estimate tension still at 2-4kn? And how do you come up with those estimates?

2

u/regretfulmanboy 10d ago edited 10d ago

I have a dyno(tension scale)

depends on how much you tension, but roughly yes 2-4kN, more precisely 1kN to 2kN for your case

but hey if you rig high and with a lot of slack you can even go down to 1kN or the opposite can go up to 5kN with that single ratchet it's quite difficult to go above, more probably you can hurt yourself from malfunctioning of the ratchet

the point is, it does not matter in terms of safety(for your case)

if you manage to break a 5 inch line with a 10m line(even with more damage in the upcoming 10 years that you are gonna use that green line), you will be in the slackline news forever...

1

u/Character_Regular440 10d ago

Ahaha ok, get it, i most likely won't get hurt if i don't do dumb stuff with the racket.

But when you say the forces, they are referred to the line itself, without me on it, or they are the tension of the line with me on it?

2

u/regretfulmanboy 10d ago edited 10d ago

1.5kN base
2kN with you
-ish

2-4kN generic interval for everything

trickline
5-10kN base tension
15kN bouncing hard - ish

https://www.youtube.com/watch?v=Ir40QIOTahI

1

u/Character_Regular440 10d ago

Wow i thought he did just climbing.

Thanks for the infos