Marine-grade Kenter Shackle supplier presents the buyer's guide

Kenter Shackle is a removable shackle designed for attaching anchor chains, widely used in ships, offshore platforms and harbor projects. Its core features include:

• Quick connection: no welding required, fixed by bolts or pins for easy maintenance and replacement.

• High tensile strength: Breaking load (BLL) up to 1,000 tons or more, suitable for large ship anchor chain.

  

Common types

• Standard type The material is alloy steel, hot dip galvanized surface, salt spray corrosion resistant.

• Offshore vessels, harbor equipment

• Deep-sea reinforced type Made of anchor chain kenter joining shackle 316L, resistant to high pressure and low temperature, breaking load increased by 30%.

• Ocean-going cargo ships, oil rigs

• Explosion-proof ATEX certified to avoid sparks, suitable for flammable gas environments.

• LNG carriers, chemical plant terminals

Selection Guide: 5 Key Parameters

1. Material and surface treatment

Alloy steel: economic choice, suitable for regular marine environment (operating temperature -20℃~120℃).

Stainless steel 316L: chlorine ion corrosion resistant, suitable for deep sea or high salinity areas 7.

Surface treatment: hot dip galvanized (average zinc layer ≥85μm) or epoxy coated for longer service life.

2. Load capacity

Working Load (WLL): need to be ≥1/5 of the nominal strength of the anchor chain, e.g. 30mm anchor chain should be selected with WLL ≥150 tons of unloading buckles.

Safety factor: usually 4:1, 6:15 is recommended for high risk scenarios.

3. Certification standards

International certification: CE (EN 13889), ABS (American Bureau of Shipping), DNV (Det Norske Veritas).

Special environmental approvals: ATEX (explosion-proof), ISO 17796 (low temperature resistance).

4. Size and Compatibility

Anchor chain diameter matching: the inner diameter of the anchor shackle should be 10%-15% larger than the diameter of the anchor chain (e.g. 30mm anchor chain is suitable for 34-35mm shackle).

Bolt type: Prefer self-locking nut design to prevent loosening caused by vibration at sea.

FAQ

Q: Can Kenter Shackles be reused after disassembly?

A: Yes, but only if the bolts and surfaces show no deformation or corrosion. Regular inspection is mandatory.

Q: What is the price range for marine-grade Kenter Shackles?

A: Standard alloy steel models cost 200–500, while stainless steel versions range from 800–2,000.