Chat & Social > The Bar - General Chat
Shackle ratings - part 2
Jimbo:
The gremlin just munched me thread, right in front of my very eyes !, never fear - this hopefully, will be a 'copy & paste' of what was in it.
Did another recovery today - had to extract my mate, his Navara (on road tyres) and 16' Ifor car trailer from his waterlogged field - and whilst we were hooking up the Yellowstraps (pukka bits of gear I must say), it dawned on me that my shackles might not be up to the job.
The shackles are stamped "WLL 3/4" - does that mean 3/4 tonne, or am I being dim
If they are 3/4 tonne rated, is that enough - or do I need meatier ones ?
Jim
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Jim
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Tyke
Joined: 29 Nov 2005
Location: Skelmanthorpe, West Yorkshire, 53:35:29N 1:38:55W
Member # 3014
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Posted: Wed Jan 18, 2006 4:57 pm Post subject:
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Theoretical design capacity is normaly 5 times the Working Load Limit (WLL) for quality lifting shackles.
Your 3/4's would therefore be limited to 3.75Tonne but I still wouldn't like to trust them at that.
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Jake
Joined: 19 Jul 2004
Location: Berkshire, Datchet
Member # 1104
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Posted: Wed Jan 18, 2006 4:59 pm Post subject:
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I've got some 4 1/2tonne rated shackles.
So buy the above post, that means they are rated to 23 3/4 tonne?
Is that right?
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Jake Lloyd
'Challenger' 1996 Land Rover Discovery 2.5 Tdi Es
colintandy:
:(scared): now thats scary cos the yellow strap is probably rated at somethink like 55 tonne and the shackle you attached to vehicle has a 3.5 rate add a few more tonnage on the vehicle thats being recoverd and some when :(scared): the shakkle breaks its like a flying bullet that will come through the rear window and front window and if you lucky it might stop when it hits a tree :(scared): i would suggest using a 5tonne rated shackle and higher ,normally when recovering a truck from the mud.ect you can quite easily be pulling a 10 tonne load depending on the severity of the ground and angle because of the resistance that gets in front of the wheels ect..
Jimbo:
I guessed the shackles would be a bit on the weak side :oops:
There's a Lifting-hire shop near here, they advertise/sell/hire cherry pickers and general site equipment - assuming that they sell shackles, is there any difference in a shackle sold for lifting, as opposed to towing ?
Jim
thumbs:
they will be rated differently for lifting rather than towing, same shackle but will be lower rating for lifting, straps are done like this aswell, then it depends on if you double them up etc, bit complicated how it all works, should say on shackle what it will take.
shackles are normoally painted different colours for what they are rated at, the hire shop should be able to help you no probs.
made me think though, i bet mine are under rated for what i do with them.
clips:
Another way for heavy work is to make a bridle and split the load between the shackles
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