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 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.
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.
Mooring shackles are manufactured with alloy steel by following ISO9001 Quality Control System. With our years know-how on forging, heat treatment and hot dip galvanized, it is ensured the mooring shackle avoid any Hydrogen Embrittle-ment and offer a longer fatigue life of safe performance compared to EN13889 requirement and safety.
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.
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.
A mooring ring is a forged or welded circular steel fitting mounted on docks, piers or decks to give mooring lines a secure, permanent anchor point. SMEOCEAN rings are drop-forged from Q345B alloy steel or 316L stainless, hot-dip galvanized ≥80 µm, rated 2–200 t, and certified to IACS / ABS / CCS / DNV. Magnetic-particle inspected and salt-spray tested, they deliver long-term, maintenance-free holding power for vessels, floating platforms and workboats.
Mooring plate is one critical component in the mooring system. We deliver robust and solid mooring plates which are designed to withstand the forces they are exposed to.
The HDG Rope K3 Thimble with Master Link is a heavy-duty, integrated connection assembly designed for fiber rope mooring systems. It combines a hot-dip galvanized (HDG) thimble with a permanently attached master link, providing a secure, ready-to-use connection point for aquaculture cages, mooring buoys, and marine rigging. The thimble features side ears that perfectly guide and cradle the fiber rope eye, preventing abrasion and deformation under high tension. The integrated master link eliminates the need for an additional shackle, simplifying installation and enhancing the safety of the entire mooring system.
| Product Information: | |
| Application: | Connect the end of the anchor chain to the anchor |
| Material: | Alloy Steel CM490/CM690 |
| Diameter: | 20.5MM to 142MM |
| Surface finishing: | Black Tar or Hot Dip Galvanized |
| Standard： | European Standard/USA ASTM 80 |
| Certificate: | LR, ABS, BV, DNV, CCS, KR, NK, RMRS,etc |
An end shackle (ES), also called an anchor shackle (AS), is used to connect the anchor chain to the anchor itself – it is the final link between the chain and the anchor.
The term "end shackle" describes its position (at the end of the chain), while "anchor shackle" describes its function (connecting to the anchor).
| Chain size | Size(mm) | Unit weight | ||||
| (mm) | D | L | W | d | P | (kg) |
| 20.5 | 29 | 94 | 49 | 64 | 37 | 3.3 |
| 24 | 34 | 110 | 57 | 74 | 43 | 5 |
| 26 | 36 | 120 | 63 | 81 | 46 | 6 |
| 28 | 39 | 129 | 68 | 87 | 50 | 8 |
| 30 | 42 | 138 | 72 | 93 | 54 | 9.5 |
| 32 | 45 | 147 | 76 | 99 | 58 | 12 |
| 34 | 48 | 156 | 81 | 105 | 61 | 14 |
| 36 | 50 | 166 | 87 | 112 | 65 | 17 |
| 38 | 53 | 175 | 92 | 118 | 69 | 20 |
| 40 | 56 | 184 | 96 | 124 | 72 | 23 |
| 42 | 59 | 193 | 100 | 130 | 76 | 26 |
| 44 | 62 | 202 | 105 | 136 | 79 | 29 |
| 46 | 64 | 212 | 111 | 143 | 83 | 33 |
| 48 | 67 | 221 | 116 | 149 | 86 | 37 |
| 50 | 70 | 230 | 120 | 155 | 90 | 41 |
| 52 | 73 | 239 | 124 | 161 | 93 | 45 |
| 54 | 76 | 248 | 129 | 167 | 97 | 50 |
| 56 | 78 | 258 | 135 | 174 | 101 | 54 |
| 58 | 81 | 267 | 140 | 180 | 104 | 65 |
| 60 | 84 | 276 | 144 | 186 | 108 | 70 |
| 62 | 87 | 285 | 148 | 192 | 112 | 76 |
| 64 | 90 | 294 | 153 | 198 | 115 | 82 |
| 66 | 92 | 304 | 159 | 205 | 119 | 94 |
| 68 | 95 | 313 | 164 | 211 | 122 | 101 |
| 70 | 98 | 322 | 168 | 217 | 126 | 108 |
| 76 | 106 | 350 | 183 | 236 | 137 | 141 |
| 81 | 113 | 373 | 195 | 251 | 146 | 171 |
| 87 | 122 | 400 | 208 | 270 | 157 | 218 |
| 90 | 126 | 414 | 216 | 279 | 162 | 243 |
| 95 | 133 | 437 | 228 | 295 | 171 | 290 |
| 100 | 140 | 460 | 240 | 310 | 180 | 335 |
| 111 | 155 | 511 | 267 | 344 | 199 | 445 |
| 122 | 171 | 560 | 292 | 378 | 220 | 550 |
| 127 | 178 | 584 | 304 | 394 | 229 | 600 |
| 132 | 185 | 607 | 316 | 409 | 238 | 675 |
| 137 | 192 | 630 | 328 | 425 | 247 | 750 |
| 142 | 199 | 653 | 340 | 440 | 256 | 900 |
1.Are end shackle and joining shackle the same thing?
No, they are not the same.
An end shackle (ES), also called an anchor shackle (AS), is used to connect the anchor chain to the anchor itself – it is the final link between the chain and the anchor.
The term "end shackle" describes its position (at the end of the chain), while "anchor shackle" describes its function (connecting to the anchor). Both names refer to the same component.
End shackles and joining shackles are not interchangeable. Always use the correct shackle type for each position in the anchor chain system.
2. What is the function of an end shackle and where is it installed?
An end shackle is used to connect the final link of the anchor chain to the anchor ring or crown. It serves as the critical connection between the vessel's anchor and the anchor chain.
It is installed at the very end of the anchor chain, just before the anchor. This is the shackle that takes the full load of the vessel when at anchor, making it one of the most heavily stressed components in the entire mooring system.
3. What are the size and weight differences?
An end shackle is larger and heavier than a joining shackle.
For the same chain diameter, an end shackle has a diameter of approximately 1.4d and is noticeably heavier than a joining shackle (which has a diameter of approximately 1.3d). For example, at 22mm chain size, an end shackle weighs about 3.9kg, while a joining shackle weighs about 2.6kg.
This extra size and weight are intentional – the end shackle must withstand the shock loads, abrasion, and constant stress of holding the vessel's anchor in position, often in harsh sea conditions.
4. How does an end shackle connect to the chain?
An end shackle typically connects directly to the anchor ring at one end and to a swivel or connecting component at the other end.
An end shackle provides a more direct connection to the anchor. In many configurations, a swivel is installed between the end shackle and the chain to prevent twisting.
5. Does an end shackle pass through the windlass gypsy wheel?
Generally no – and this is an important distinction.
Unlike a joining shackle, which must travel through the windlass during chain extension and retrieval, the end shackle is typically stopped at the chain stopper or hawse pipe when the anchor is fully housed.
This is why different shackle types exist – each is designed for its specific position and function in the anchor chain system.
