Stud link anchor chains are a type of heavy-duty chain commonly used for anchoring and mooring vessels. They have a central stud in each link that helps to prevent kinking, deformation, and fouling. These chains are known for their strength and are often preferred for large vessels and applications where significant loads are involved.
Fishing chains have three specifications: short link chian, middle link chain and long link chain. Different types of fishing chains have different features.
Studless Fishing Anchor Chain are 62.5% load verified at break, very durable and able to withstand extreme and harsh weather use, it is also corrosion-resistant, ideal for use in saltwater environments. There are Short Link, Mid Link and Long Link to choose from.
Stud link anchor chains are a type of heavy-duty chain commonly used for anchoring and mooring vessels. They have a central stud in each link that helps to prevent kinking, deformation, and fouling. These chains are known for their strength and are often preferred for large vessels and applications where significant loads are involved.
The Stingray Anchor is a high-efficiency drag embedment anchor designed for aquaculture and marine mooring. With holding power exceeding 40 times its own weight, it significantly outperforms conventional anchors of similar size.
The Sand Anchor has is a conventional anchor with solid construction to withstand high load.It has high holding power and weight ratio and very suitable for seabed of sand and mix Soil.
Mooring connection plates are manufactured using alloy grade material and followed by full heat treatment process.The durability ensures that the plates can withstand exposure to saltwater, reducing maintenance needs and extending the lifespan of the aquaculture setup.
Rope K3 Thimble is used for aquaculture mooring, where the surface needs to be heat-treated to protect wire, fibre or synthetic ropes.
The 12.5mm Stud Link Anchor Chain is a heavy-duty marine chain primarily used in ship anchoring and mooring systems. Standard length (short link): typically supplied in 27.5-meter (15 fathom) lengths, connectable using Kenter shackles.
AM3 is a designation for a grade of stud-link anchor chain, specifically referring to a high-strength steel chain used for ship anchoring and mooring. These chains are designed for durability and reliability in demanding marine applications, often used on large vessels or in harsh environmental conditions.
Stud link anchor chain AM2 is a specific type of anchor chain widely used in marine applications. It's characterized by having a stud (a crossbar or bar) within each link, adding strength and preventing kinking or twisting. AM2 is a designation within the marine industry for a specific grade of this chain, indicating its strength and material properties.
Anchor Chain for marine farm mooring system, with diameter 16mm to 50mm, most used in European fish farming industry.
| Product Information: | |
| Application: | Fishing Grounds, Fixed Net Cages, Fishing |
| Material: | High Quality Alloy steel, CM490/ CM690 |
| Specification: | 20.5MM to 58MM |
| Surface: | Self-color, Polishing, Blackened, Painted, Plastic Coating, Hot-dip Galvanized, Electro-galvanized etc. |
| Certification: | LR, ABS, DNV, BV, CCS, KR, RMRS, NK etc. |
Fishing chains are corrosion-resistant chain systems designed specifically for aquaculture, fishing operations, and marine engineering. They are used to fix fishing nets, anchor aquaculture cages, connect fishing equipment, and bear loads in seawater and freshwater high-humidity environments. They must have three core properties: resistance to salt spray corrosion, high breaking load, and wear resistance.
Fishing chains have three specifications: short link chian, middle link chain and long link chain. Different types of fishing chains have different features.
Short link fishing chain has a good yield performance that can meet a variety of applications. The short link chains are the heaviest among the fishing chain series. Its chain diameters range from 7mm, 10mm, 13mm, 16mm, 19mm to 20mm.
The strength of mid link chain is the same as short link chain, but due to its smaller number of links per meter, the wear of inner link is less. The mid link chains is lighter than short link chains and also cheaper. Mid link fishing chain diameter ranges from 10mm, 13mm, 14mm, 16mm, 19mm, 22mm to 26mm.
Long link chains are much lighter than short link and mid link chains. The rotation space of its inner links is larger and convenient for the installation of accessories. Long link chain diameter ranges from 7mm, 9mm, 11mm, 13mm, 16mm, 19mm, 22mm to 28mm.
| Nominal specification, breaking load, tension load and unit weight Unit KN | |||||
| Nominal | AM2 | AM3 | Stud link chain weight | ||
| Dia/mm | MBL | PL | MBL | PL | （kg/m) |
| 20.5 | 244 | 175 | 349 | 244 | 9.2 |
| 22 | 280 | 200 | 401 | 280 | 10.6 |
| 24 | 332 | 237 | 476 | 332 | 12.61 |
| 26 | 389 | 278 | 556 | 389 | 14.8 |
| 28 | 449 | 321 | 642 | 449 | 17.17 |
| 30 | 514 | 368 | 735 | 514 | 19.71 |
| 32 | 583 | 417 | 833 | 583 | 22.43 |
| 34 | 655 | 468 | 937 | 655 | 25.32 |
| 36 | 732 | 523 | 1050 | 732 | 28.38 |
| 38 | 812 | 581 | 1160 | 812 | 31.62 |
| 40 | 895 | 640 | 1280 | 895 | 35.04 |
| 42 | 981 | 703 | 1400 | 981 | 38.63 |
| 44 | 1080 | 769 | 1540 | 1080 | 42.4 |
| 46 | 1170 | 837 | 1680 | 1170 | 46.34 |
| 48 | 1270 | 908 | 1810 | 1270 | 50.46 |
| 50 | 1370 | 981 | 1960 | 1370 | 54.75 |
1. Stud link or studless fish chain – which to choose for aquaculture mooring?
For fish farm mooring systems, stud link fish chain is stronger, less prone to tangling, and recommended for deep-sea aquaculture (water depth over 50 meters) and strong current areas. Salmon farms in Norway and Chile commonly use 26-36mm stud link anchor chain for their aquaculture mooring.
Studless fishing chain is lighter and cheaper, suitable for shallow water fish farming (depth under 30 meters) or calm conditions.
Unsure about your aquaculture mooring setup? Tell us your water depth and sea conditions – we will recommend the right fish chain for your farm.
2. What anchor for deep-sea aquaculture cages?
Deep-sea fish farming cages use high-holding-power drag embedment anchors, not concrete sinkers which lack holding power at depth. We recommend three types for aquaculture mooring: Stingray Anchor (holding power over 40 times its own weight), Drag Anchor (for sand and mud bottoms), and Sand Plough Anchor (plough-shaped, sets quickly).
We also offer matching fish chain and anchor packages for complete aquaculture mooring systems. See our anchor pages for details.
3. Short link, mid link, or long link fishing chain – what's the difference?
Short link fishing chain is the heaviest with the highest strength, best for deep-sea mooring and heavy aquaculture loads. Mid link aquaculture chain is moderate in weight and cost, ideal for general fish farm mooring. Long link fishing chain is the lightest with more rotation space, suitable for accessory connections and flexible joints in aquaculture systems.
Rule of thumb: Deep water and heavy loads – choose short link fish chain. Shallow water – choose mid link aquaculture chain. Accessories – choose long link fishing chain.
4. How to maintain aquaculture fishing chains?
Rinse your fishing chain with fresh water after each use. Inspect regularly for deformation, cracks, and wear – replace when fish chain diameter wear exceeds 8-10%. Apply anti-rust grease or marine lubricant, especially on pin joints and contact surfaces. Keep maintenance logs with inspection dates and replacement records for your aquaculture mooring system.
5. Why do Norwegian fish farms need certified anchor chains?
Three reasons for choosing certified fish chain.
First, insurance requirement – insurers require valid product certificates for aquaculture mooring components.
Second, fish escape prevention – Norwegian regulations require certified mooring to ensure fish farm pen integrity.
Third, compliance – fish farms need site and installation certificates; some financing agreements also require certified aquaculture mooring documentation.
Bottom line: The cost of certified fishing chain is far less than a single fish escape incident.
