Anchor chain swivel

A swivel piece designed to fit the anchor end link and prevent excessive twisting of the anchor chain. Chain swivel assemblies are common marine accessories used to connect the anchor chain with the anchor and to secure the chain at the anchor point.

Key functions

• Prevents excessive twisting of the anchor chain at the anchor end.
• Connects the anchor chain and the anchor, ensuring correct alignment and reliable operation of the anchoring system.

Application and selection guidance

• The swivel size should match the diameter of the anchor chain: e.g., a 16 mm anchor chain generally requires a 16 mm swivel; a 20.5 mm chain requires a 20.5 mm swivel.
• Choose the specification by considering chain diameter and length, vessel type and operating environment — in harsh sea conditions larger swivel sizes may be required to ensure stability and safety.
• Smaller vessels may use smaller swivels to optimize cost while maintaining safe operation.

Visuals and documentation on product page

• Photos of the swivel, dimensional diagram (PNG/SVG) and images of the assembled swivel set are provided on the product page.

Technical characteristics / specifications

• Product name: Swivel
• Function: Prevents chain twisting; connects anchor chain to anchor
• Size rule: Swivel specification determined by anchor chain diameter and length (examples: 16 mm chain → 16 mm swivel; 20.5 mm chain → 20.5 mm swivel)
• Application factors: chain diameter, chain length, vessel type, sea/environment conditions