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+49 8053 2029-0Our ULTRA Classic Swivel for secure anchor-to-chain connection and controlled articulation
The ULTRA Classic Swivel is designed to connect the anchor and chain without the need for an additional shackle. It is specified for use with Side Pocket and stockless anchor types and supports controlled movement during retrieval to help the anchor correct its position. Manufactured from solid stainless steel and finished by hand, it combines defined articulation with a compact, marine-ready design.
Key performance features
- Designed to connect Side Pocket / stockless anchors.
- Helps correct the anchor’s position during recovery.
- Breaking strength is specified as higher than the chain it is connected to.
- Spherical joint allows movement in all directions.
- 360° rotation with up to 30° tilt (as specified).
- Made from 316Ti solid stainless steel, machined from a single piece (not cast).
- 5-year warranty.
Design and construction
The ULTRA Classic Swivel is manufactured in Turkey as a one-piece, machined component to deliver strength and predictable movement at the connection point. Hexagonal pin heads and a set screw provide the required security, and the breaking strength is marked on the rear of each swivel body.
Construction details
- Material: 316Ti solid stainless steel, hand polished.
- Manufacturing method: machined from a single piece (not cast).
- Movement: spherical joint design for 360° rotation and up to 30° tilt.
- Security concept: hexagonal pin heads and set screw; no additional safety straps or locking pins required (as specified).
- Identification: breaking strength marked on the back of the swivel.
Selecting the right ULTRA Classic Swivel model
| Type | Chain Diameter (*) | Approx. overall length | Chain Side Dimensions | Anchor Side Dimensions | Breaking Load | Maximum Anchor Weight | |||
|---|---|---|---|---|---|---|---|---|---|
| (mm) | (inch) | A (mm) | b–c–d–e–f (mm) | B–C–D–E–F (mm) | (kN) | (lbf) | (kg) | (lbs) | |
| UCS 6-14 | 6 | 1/4" | 107 | 25×7,6×7×9×11 | 35×16×11×13×31 | 38,4 | 8640 | 14 | 31 |
| UCS 8-24 | 6–8 | 1/4"–5/16" | 129 | 30×9,4×9×11×14,5 | 40×19×13×16×36,5 | 56,7 | 12740 | 24 | 53 |
| UCS 10-40 | 8–10 | 5/16"–3/8" | 147 | 35×11,6×11×13×17 | 45×21×14,5×18×40 | 90,7 | 20400 | 40 | 88 |
| UCS 13-85 | 10–12–13 | 3/8"–1/2" | 185 | 45×15,2×14,5×16,5×23 | 55×26×18×23×51,5 | 160,9 | 36200 | 85 | 187 |
| UCS 16-160 | 12–13–14–16 | 1/2"–5/8" | 217 | 53×18,2×18×20×27 | 65×31×22×27×59 | 236,5 | 53200 | 160 | 352 |
| UCS 20-300 | 16–18–20 | 5/8"–3/4" | 269 | 65×23×22×26×34 | 85×40×26×32×72 | 321,5 | 72300 | 300 | 660 |
| UCS 26-570 | 20–23–26 | 3/4"–1" | 316 | 85×30×26×33×43 | 110×52×32×40×77 | 474,8 | 106700 | 570 | 1256 |
| UCS 32-1000 | 26–30–32 | 1"–1 1/4" | 407 | 110×38×32×43×55 | 140×66×40×52×99 | ~726 | ~163047 | 1000 | 2200 |
| Type | Chain Diameter (*) | Approx. overall length | Chain Side Dimensions | |
|---|---|---|---|---|
| (mm) | (inch) | A (mm) | b–c–d–e–f (mm) | |
| UCS 6-14 | 6 | 1/4" | 107 | 25×7,6×7×9×11 |
| UCS 8-24 | 6–8 | 1/4"–5/16" | 129 | 30×9,4×9×11×14,5 |
| UCS 10-40 | 8–10 | 5/16"–3/8" | 147 | 35×11,6×11×13×17 |
| UCS 13-85 | 10–12–13 | 3/8"–1/2" | 185 | 45×15,2×14,5×16,5×23 |
| UCS 16-160 | 12–13–14–16 | 1/2"–5/8" | 217 | 53×18,2×18×20×27 |
| UCS 20-300 | 16–18–20 | 5/8"–3/4" | 269 | 65×23×22×26×34 |
| UCS 26-570 | 20–23–26 | 3/4"–1" | 316 | 85×30×26×33×43 |
| UCS 32-1000 | 26–30–32 | 1"–1 1/4" | 407 | 110×38×32×43×55 |
| Type | Anchor Side Dimensions | Breaking Load | Maximum Anchor Weight | ||
|---|---|---|---|---|---|
| B–C–D–E–F (mm) | (kN) | (lbf) | (kg) | (lbs) | |
| UCS 6-14 | 35×16×11×13×31 | 38,4 | 8640 | 14 | 31 |
| UCS 8-24 | 40×19×13×16×36,5 | 56,7 | 12740 | 24 | 53 |
| UCS 10-40 | 45×21×14,5×18×40 | 90,7 | 20400 | 40 | 88 |
| UCS 13-85 | 55×26×18×23×51,5 | 160,9 | 36200 | 85 | 187 |
| UCS 16-160 | 65×31×22×27×59 | 236,5 | 53200 | 160 | 352 |
| UCS 20-300 | 85×40×26×32×72 | 321,5 | 72300 | 300 | 660 |
| UCS 26-570 | 110×52×32×40×77 | 474,8 | 106700 | 570 | 1256 |
| UCS 32-1000 | 140×66×40×52×99 | ~726 | ~163047 | 1000 | 2200 |
Notes
- UCS selection should be based on the “Max. Anchor Weight”. If it’s not enough, a bigger UCS must be selected.
- One size bigger UCS can also be used with the same chain (e.g. Grade 70 / G7).
- Since the swivel wears out, the warranty period is limited to 5 years. Perform visual wear checks at least once a year.
- Tested by RINA (except UCS 32-1000). Safe Working Load = 0,5 × Breaking Load.
- (*): Diameters are for the standard and one size smaller chains that can normally be connected. For even smaller chains: attach a larger end link, or order a modified swivel (e.g. UCS 20/12-300).
Downloads
FAQs
What is the purpose of the ULTRA Classic Swivel?
The ULTRA Classic Swivel is designed to create a secure connection between the anchor and chain while allowing controlled articulation during deployment and retrieval. By enabling rotational movement, it can help improve anchor alignment and support smoother recovery operations.
Which anchor types are compatible with the ULTRA Classic Swivel?
The ULTRA Classic Swivel is designed for use with Side Pocket Anchors and stockless anchor types. Correct compatibility between the anchor, swivel, and chain is important to ensure reliable operation and proper load transfer throughout the anchoring system.
Why is articulation important in an anchor swivel?
Articulation allows the swivel to accommodate changing angles between the anchor and chain during operation. This flexibility can help reduce mechanical stress, improve anchor positioning during retrieval, and support smoother movement throughout the anchoring process.
What are the benefits of a one-piece machined swivel compared to a cast swivel?
A one-piece machined swivel is manufactured from solid material rather than being cast. This approach can provide greater material consistency, precise dimensional control, and high mechanical strength, making it suitable for demanding marine applications.
Why is swivel breaking strength important?
The swivel should be capable of handling the loads generated within the anchoring system without becoming the weakest component in the assembly. A swivel with a breaking strength that exceeds the connected chain helps maintain system integrity and supports safe operation under load.
What are the advantages of 316Ti stainless steel for marine swivels?
316Ti stainless steel combines excellent corrosion resistance with high mechanical strength, making it well suited for long-term use in marine environments. The titanium-stabilised alloy also offers enhanced durability in applications exposed to seawater and varying operating conditions.
How does the ULTRA Classic Swivel help during anchor recovery?
The spherical joint design allows controlled rotation and movement as the anchor approaches the bow. This can help the anchor align more naturally with the retrieval system, improving seating behaviour and reducing the likelihood of awkward positioning during recovery.
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