bow shackle pin colour

mrdsgs · Dec 22, 2007

novice question i know, but what is the significance of blue, yellow or gren pin colour on bow shackles. I naively thought it was linked to the diameter of the pin or breaking strain but i have blue pins in different sizes and strengths of shackle.

thanks in adance

mrdsgs

yella · Dec 22, 2007

colour coded pins are usually for when the equipment is used in an industrial capacity. they usually change the colour every few months so that they know the equipment is within its test date

ragerover · Dec 29, 2007

green pins are normally an alloy as used off shore etc

but the old adage allways rings true as with strops , chains and all lifting gear dont trust the colour check the swl hard stamped on it

swl = safe working load

or wll european spec = working load limit

Pikey · Dec 29, 2007

And don't forget that lifting slings, strops and Shackles which are stamped or marked with a SWL (not all off them are) havde a safety factor of approx 7:1 so a 1 ton strap has a breaking strain of about 7 tonnes.

This prevents the gear been used to the limits of it's real strength and reduces the likelyhood of it snapping after 6 or 7 uses.

Whereas towing straps aren't tested or marked. and should never be used for lifting. Right that's me H&S lecture for the day.

G-man · Dec 29, 2007

thats why i alway like to use lifting gear

CharlesY · Dec 29, 2007

redhand said:
And don't forget that lifting slings, strops and Shackles which are stamped or marked with a SWL (not all off them are) havde a safety factor of approx 7:1 so a 1 ton strap has a breaking strain of about 7 tonnes.

This prevents the gear been used to the limits of it's real strength and reduces the likelyhood of it snapping after 6 or 7 uses.

Whereas towing straps aren't tested or marked. and should never be used for lifting. Right that's me H&S lecture for the day.

And a very useful little lecture too.
Thanks.
CharlesY

mrdsgs · Dec 29, 2007

thanks one and all, i am now relieved and reassured that that stamped swl on the shackle is the issue, rather than pin colour

thanks

mike

bow shackle pin colour

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