Prolyte Campus blog: Identification of lifting shackles

Yes – a bit more about these things. Real cash-cows for inspection companies if you want to buy their annual paperwork that is often confused with an inspection.

The issue:
All lifting components that can be affected in their safety as a result of use, abuse, wear and so forth shall be inspected at least once a year. Thus no sense in denying shackles shouldn’t be.

The reply:
Nowhere in EU-Directives, Act’s, Laws or Regulations is specifically stated that the annual inspection of shackles must be done by a government recognized inspection company or a Notified Body. Buy the right shackles and be less worried on the subsequent annual paperwork.

First thing is to make sure using shackles that are designed an manufactured for lifting purposes. Most nations require a minimum amount of identification on the shackle. The picture + table on the right compares the situation of the EU with that in the USA and Russia. The position of these markings is free.


A) Manufacturer name or name-code  

B) WLL = Working load limit – the rated safe working load for general us.

C) CE marking. Referring to a type IIA declaration by the

D) Diameter of the body or leg – in mm’s or inch.

E) Material alloy, in a number or code

Do you find all these mandatory ID’s then use them. An important thing that should be considered is that shackles are not the weakest parts in our systems, in most cases the wire ropes are.

The last one is an overall risk assessment: in the range of rigging accidents that have hit our industry in the last couple of decades, failure of a lifting shackle has never been the cause.

The verdict:
Inspect them yourself, as will be explained about in a next blog. Put the accredited (expensive) attention to where it is more (cost-) effective…


Post your questions at the Prolyte Forum

Our experiences with this new ProLyft system are really positive. Rigging and outlining line-array systems is now very fast and accurate. Furthermore, the installing teams we’re a pleasure to work with.

Arnold van Duijn Chief Operational Services, Concertgebouw Amsterdam