MK5 Drag Anchor
Description
MK5 drag anchor is for larger mobile and permanent moorings, primarily because of its principal qualities. At the time it had the best per kilo performance, generating up to 50 times its own weight in holding capacity proved suitable for all soil conditions. It proved easy to handle, easy to install, easy to retrieve. Still today over 2,200 anchors of this type are in use and supplied new to newbuild semi-submersible rigs or permanent installations.
MK5 shark It demonstrates outstanding performance in challenging soil conditions like limestone, calcarenite, dense sands, and coral. This anchor shares the same inherent qualities as the Mk5 but features enhancements including a reinforced construction, shark teeth, sharp fluke edges, and tips.
Certificate available for ABS, BV, LRS, DNV, IRS, RINA, RS, CCS, KR, NK
Size Chart
Main Diagram

| Weight | A | B | C | D | E | F | G | H | I | J | K | L | φ |
| Kgs | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm |
| 300 | 1583 | 1703 | 1142 | 969 | 658 | 320 | 186 | 330 | 63 | 805 | 263 | 145 | 45 |
| 500 | 2044 | 2206 | 1652 | 1254 | 850 | 413 | 240 | 520 | 64 | 1043 | 342 | 188 | 50 |
| 750 | 226 | 2400 | 1794 | 1367 | 923 | 450 | 261 | 463 | 70 | 1133 | 372 | 204 | 60 |
| 1000 | 2580 | 2780 | 2085 | 1582 | 1074 | 522 | 303 | 537 | 104 | 1314 | 430 | 236 | 62 |
| 1500 | 2954 | 3184 | 2380 | 1812 | 1230 | 598 | 346 | 615 | 92 | 1505 | 493 | 271 | 68 |
| 3000 | 3721 | 4011 | 3008 | 2283 | 1550 | 750 | 435 | 775 | 150 | 1896 | 622 | 342 | 90 |
| 5000 | 4412 | 4756 | 3567 | 2707 | 1837 | 893 | 54 | 900 | 176 | 2248 | 738 | 406 | 110 |
| 8000 | 5148 | 5500 | 4244 | 3120 | 2385 | 1210 | 464 | 1424 | 165 | 2515 | 570 | 369 | 130 |
| 10000 | 6250 | 6140 | 4480 | 3410 | 2310 | 1070 | 650 | 975 | 220 | 2832 | 970 | 485 | 140 |
| 12000 | 5890 | 6295 | 4858 | 3565 | 2732 | 1325 | 531 | 1630 | 190 | 2875 | 653 | 425 | 150 |
| 15000 | 6364 | 6860 | 5145 | 3904 | 2650 | 1290 | 748 | 2650 | 258 | 3242 | 1064 | 585 | 170 |
| 18000 | 6754 | 7205 | 5561 | 4080 | 3127 | 1575 | 610 | 1865 | 220 | 3295 | 748 | 486 | 175 |
About
Description
MK5 drag anchor is for larger mobile and permanent moorings, primarily because of its principal qualities. At the time it had the best per kilo performance, generating up to 50 times its own weight in holding capacity proved suitable for all soil conditions. It proved easy to handle, easy to install, easy to retrieve. Still today over 2,200 anchors of this type are in use and supplied new to newbuild semi-submersible rigs or permanent installations.
MK5 shark It demonstrates outstanding performance in challenging soil conditions like limestone, calcarenite, dense sands, and coral. This anchor shares the same inherent qualities as the Mk5 but features enhancements including a reinforced construction, shark teeth, sharp fluke edges, and tips.
Certificate available for ABS, BV, LRS, DNV, IRS, RINA, RS, CCS, KR, NK
Size Chart
Main Diagram

| Weight | A | B | C | D | E | F | G | H | I | J | K | L | φ |
| Kgs | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm |
| 300 | 1583 | 1703 | 1142 | 969 | 658 | 320 | 186 | 330 | 63 | 805 | 263 | 145 | 45 |
| 500 | 2044 | 2206 | 1652 | 1254 | 850 | 413 | 240 | 520 | 64 | 1043 | 342 | 188 | 50 |
| 750 | 226 | 2400 | 1794 | 1367 | 923 | 450 | 261 | 463 | 70 | 1133 | 372 | 204 | 60 |
| 1000 | 2580 | 2780 | 2085 | 1582 | 1074 | 522 | 303 | 537 | 104 | 1314 | 430 | 236 | 62 |
| 1500 | 2954 | 3184 | 2380 | 1812 | 1230 | 598 | 346 | 615 | 92 | 1505 | 493 | 271 | 68 |
| 3000 | 3721 | 4011 | 3008 | 2283 | 1550 | 750 | 435 | 775 | 150 | 1896 | 622 | 342 | 90 |
| 5000 | 4412 | 4756 | 3567 | 2707 | 1837 | 893 | 54 | 900 | 176 | 2248 | 738 | 406 | 110 |
| 8000 | 5148 | 5500 | 4244 | 3120 | 2385 | 1210 | 464 | 1424 | 165 | 2515 | 570 | 369 | 130 |
| 10000 | 6250 | 6140 | 4480 | 3410 | 2310 | 1070 | 650 | 975 | 220 | 2832 | 970 | 485 | 140 |
| 12000 | 5890 | 6295 | 4858 | 3565 | 2732 | 1325 | 531 | 1630 | 190 | 2875 | 653 | 425 | 150 |
| 15000 | 6364 | 6860 | 5145 | 3904 | 2650 | 1290 | 748 | 2650 | 258 | 3242 | 1064 | 585 | 170 |
| 18000 | 6754 | 7205 | 5561 | 4080 | 3127 | 1575 | 610 | 1865 | 220 | 3295 | 748 | 486 | 175 |
Reviews
Muir windlasses offer the ultimate in anchoring performance, reliability and style.
- Rodney Jackman
Stainless Steel Fabrication Works
“John’s pursuit of perfection was clearly evident to me even in these early days”
- Paul Goss,
Our Muir capstans and windlasses have served us well over the years
“Our Muir capstans and windlasses have served us well over the years, and will continue to do so for a long time to come. Give me plenty of good chain and the right gear to handle it, every time” (in reference to a stormy night at sea)
- Jos Scholten
Which can all of a sudden be the last bit of hope of surviving
“The fact that Muir always keeps the focus on their main business, being anchor systems, gives me the confidence that my customers can rely on that ‘shiny thing on the foredeck’ which can all of a sudden be the last bit of hope of surviving”













