D Type Joining Shackles (Lugged)
The D type joining shackle, also called an anchor shackle, connects lengths of stud link anchor chain. It is forged from alloy steel in grades U1, U2 and U3 and sizes D12 to D70, made to ISO 1704-2007, IACS W18 and W22 and API…
What This Product Is For
The D type joining shackle, also called an anchor shackle, connects lengths of stud link anchor chain. It is forged from alloy steel in grades U1, U2 and U3 and sizes D12 to D70, made to ISO 1704-2007, IACS W18 and W22 and API 2F, and approved by eleven international classification societies.
Key Benefits
- Sizes D12 to D70 in grades U1, U2 and U3 cover the full anchor chain range
- Approved by eleven classification societies, so the joint passes survey with the chain
- Made to ISO 1704-2007, IACS W18 and W22 and API 2F
- Three surface treatments for immersed or deck-stored chain
Problems It Solves
- Chain joints without classification approval failing survey
- Shackle grade not matching the grade of chain it joins
- Chain shots supplied in lengths that do not match the vessel's locker
Application Scenarios
- Joining shots of stud link anchor chain
- Anchor chain assembly on newbuild vessels
- Chain replacement and repair in service
- Mooring chain terminations
Who It Is For
- Shipyards making up anchor chain runs
- Vessel operators replacing chain shots at survey
- Offshore mooring contractors
Technical Features
- Grades U1, U2 and U3
- Size range D12 to D70
- Standards ISO 1704-2007, IACS W18 and W22, API 2F
- Material alloy steel, precision forged and heat treated
- Surface treatment natural colour, black painted or galvanized
Specification Table
Values below are taken from our own product data. Where a figure is not published for this item, we confirm it against your order rather than estimating it.
| Grade | U1,U2,U3 2 |
|---|---|
| Size | D12-70 3 |
Customization Options
- Grade U1, U2 or U3 to match the chain
- Size from D12 to D70
- Chain shot length 25m, 27.5m or as requested, with OEM and ODM supply
Quality Control
- Forging and heat treatment controlled through production
- IACS certificate available from ABS, DNV, BV, LR and others
- Certification to ISO 9001, BV, CCS, DNV, GL, KR, LR, NK, RINA and RMRS
Photographs Of This Product
How It Compares With The Alternatives
Compared with Kenter shackle
The kenter shackle is a two-half connecting link that closes with a taper pin, the lugged D type joining shackle uses a lugged body for the same joining duty
Compared with D type end anchor shackle
The joining shackle connects two chain lengths, the end shackle terminates the chain at the swivel
How To Use And Maintain It
- Match the shackle grade to the chain grade, U2 or U3 for anchor chain
- Specify the classification certificate required before production
- Confirm chain shot length so joints fall where the locker allows
- Inspect the joint fittings whenever the chain is ranged
What We Need From You To Quote
- Size or diameter, and the grade if it is specified
- Quantity and packing format
- Surface finish for the environment it works in
- Classification society, if a certificate is required
- Destination port for freight
D Type Joining Shackles (Lugged) FAQ
Which grades and sizes do you supply?
Grades U1, U2 and U3 in sizes D12 to D70.
Which standards does it meet?
ISO 1704-2007, IACS W18 and W22 and API 2F.
Which certificates are available?
ISO 9001, ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA and RMRS, with approval by eleven international classification societies.
What chain length is supplied per shot?
25m or 27.5m, or as per your request.
What surface treatments are offered?
Natural colour, black painted or galvanized.
Do you offer OEM or ODM supply?
Yes, OEM and ODM supply is available.
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