technora slings

[jarnii]

just made a load of technora slings for work and need to find out some information on them ie mbs, sfw, and just general info so when the boys get isssued them they will all have the right information of the capabilities of their new sling, i have just looked on the net and cant find them and have looked on samsons website and cant find it.

 

if anyone knows where i can get info from id greatly appreciate it.

 

many thanks:thumbup1:

[bob]

what are technora slings

are they rope or tape and presumably made by sampson

pic please

[jarnii]

its prettty much tenex bob, its yellow in the uk but here its made of dyneema and blue in colour on the out side only.made up some whoopie slings for the boys and need to get their sheets to em so they can start using them and the boss wont let me give them the slings till i have all the paper work.

 

more boring net time i think

[bob]

its prettty much tenex bob, its yellow in the uk but here its made of dyneema and blue in colour on the out side only.made up some whoopie slings for the boys and need to get their sheets to em so they can start using them and the boss wont let me give them the slings till i have all the paper work.

 

more boring net time i think

 

is it made by sampson

where did you buy it

or just use tennex info

is it not amsteel

[educated arborist]

hi, don't mean to piss on ur bonfire but dyneema is probably not the best material to use for a whoopie sling, its melting point is very, very low & unless you’re planning on using them as mini whoopie slings for weights of 250kg max! this is not due to the mbs of the material but due to its melting point. When snatching both the sling/split tail that attaches your snatch pulley and the sling/split-tail/lanyard that attaches your capstan can, momentarily, get quiiiiiite warm, in testing we have managed to glaze split-tails attaching both the capstan & the snatch pulley; both of which have melting points far, far, faaaaar higher than dyneema. So Be warned!! That said 12mm dynaline or similar has a MBS of 9200kg and 16mm has an MBS of 14900kg safety factors to establish a SWL depend on its intended use & configuration.

Edited October 13, 2009 by Steve Bullman

[jarnii]

hi mike cheers fior your reply,

 

i appreciate your findings in research but it is not some thing i am to worried about. we have put a sheath on the slings due to the construction of the actual sling and the pulley is spliced in too to eliminate the karabiner element of rigging. i would how ever be very interested in seeing the results of your research if it would be ok to see what we can do to improve our systems and see what you have reccomended for replacement. it is also worth bearing in mind that for the company im working with we do lots of removals without rigging and if we do it is natural crotch rigging and very infrequently we will use pulleys and lowering devices. this is mainly due to the size of sites we work on and the size of the trees we work in.

 

i appreciate your help in this but we will not be changing the slings unless some evidence comes to light that means we are seriously miss led about what we are doing.

 

many thanks

[educated arborist]

scratch all that........... technora isn't made from dyneema anyway i should have read the post a bit better, if it is indeed technora then you have nothing 2 worry about mate. what diamiter have you used? post it up and i'll let u know the SWL

[scotspine1]

I run advanced rigging & climbnig technique courses which are 2 days in duration, this course covers the use of dynaline in arboricultural situations

 

can you outline what other uses there are for Dynaline in arb other than winch cable?

 

thanks

 

TC

[educated arborist]

.....

Edited October 13, 2009 by Steve Bullman
please see forum guidelines

[Rupe]

Your teaching advanced climbing!! Ha ha ha! Does it include throwline?? My guys are still crying with laughter from watchign you trying to get up a Poplar tree!!