Offshore Products

DNV Mechanically Assembled Chain Slings

DNV Type Approval TAS00002DV

The working load limit of DNV 2.7-1 compliant chain slings that are used with DNV 2.7-1 containers are adjusted using the enhancement factors detailed below to give the maximum gross weight of the container to be lifted.

William Hackett are the first to be approved by DNV for the design and supply of DNV Grade 8 mechanically assembled chain slings into the harsh offshore environment worldwide. DNV Grade 8 mechanically assembled chain slings can be supplied against bespoke designs from stock in the UK in both 2 leg and 4 leg configurations in sizes 13mm - 20mm up to a container mass gross weight of 25 tonnes. DNV Grade 8 mechanically assembled chain slings are:

Mechanically Assembled Chain Slings Working Load Limits (WLL)

Description Angle Maximum WLL
t
Enhancement
Factor
Container MGW
kg
13mm x 2 leg Set (2 x 2 leg) 30° 13.76 1.586 8,700
13mm x 2 leg Set (2 x 2 leg) 45° 11.26 1.732 6,500
16mm x 2 leg Set (2 x 2 leg) 30° 20.78 1.230 16,900
16mm x 2 leg Set (2 x 2 leg) 45° 16.95 1.413 12,000
20mm x 2 leg Set (2 x 2 leg) 30° 27.59 1.104 25,000
20mm x 2 leg Set (2 x 2 leg) 45° 25.45 1.114 22,600
         
13mm x 4 leg 30° 13.76 1.586 8,700
13mm x 4 leg 45° 11.26 1.732 6,500
16mm x 4 leg 30° 20.78 1.230 16,900
16mm x 4 leg 45° 16.95 1.413 12,000
20mm x 4 leg 30° 27.59 1.104 25,000
20mm x 4 leg 45° 25.45 1.114 22,600
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