Lifting Shackle (D-Shackle) Load Calculation

Updated: May 25



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In this post, we are going to know about Lifting Shackle (D-Shackle) Load Calculation.


Lifting Shackle


Lifting shackles are connection links used to make a connection between the load lifting device (hoist hook/sling) & the load to be lifted.


Types of Lifting Shackle


There are two main shapes/styles of lifting shackle


1) "D" Shackle

2) Bow Shackle



How To Calculate Safe Work load Capacity of Shackle?


There are two methods to know about SWL of Shackle


1) It is written on it

2) By using formula


Formula = D2 x 8


Consider D= 7/8 (Size of D- shackle in inch)


Now, put this value in formula


= D2 x 8

= 7/8 x 7/8 x 8

= 6.125 T


I hope, you understand about Lifting Shackle (D-Shackle) Load Calculation.


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