why a Rocna is best: key features
Ultra-high holding power Testing demonstrates that a Rocna possesses stopping power vastly superior to equivalent weight plough or claw types in soft sand or mud, due to the large blade area coupled with the blade's concave shape, which offers the greatest resistance of any form
Instant setting A Rocna always attains the correct attitude for penetration, and with its combination of chisel tip, roll-bar, and skids, is rapidly buried on most seabeds – typically within one meter (three feet)
Large blade area and chisel blade tip On a boat weight matters, and in a Rocna anchor every gram of metal is put to use. A large concave surface blade area offers superior holding power, and the chisel-like blade tip easily penetrates weed, grass, and kelp
Roll-stable A Rocna is not susceptible to sudden "trip out". Owing to its optimized geometry, it remains embedded, and does not roll out on load-reversal or if dragged under extreme load (see photos on next page)
Ease of use A Rocna self-launches and locks home on most bow rollers. A tight curve radius between the shank and blade give a positive lock, preventing movement at sea. The slotted shackle attachment point allows single-shackle fixing, and special holes are positioned for a buoyed retrieval line and tandem anchor, if required
Roll-bar A Rocna’s roll-bar ensures that the anchor will turn itself to the correct attitude for setting, every time. The skid-rails then direct the blade into the seabed. This also eliminates the need for dedicated tip-weight (an inefficiency common in other designs)
Versatility There is a Rocna to suit your boat, whether she's a small runabout or a vessel displacing 50 tons. Larger sizes can be custom designed for your vessel (please enquire)
Appeal A Rocna has a distinctive and smart look that complements and enhances any craft
Rugged strength The heavy-duty construction of a Rocna is attained through clever design and the use of quenched and tempered 800 mPa high tensile steel steel. A Rocna is rock solid with no moving parts, eliminating complex adjustment systems and potentially dangerous failure points
Durable A hot dip galvanized finish covers the entire surface of every Rocna with protective zinc, including the interior of the hollow rollbar
To read more about how a Rocna works and what it has that the others don't, continue to the next page, which goes into more detail.
| Rocna Model | |||||||||||||
| 4 | 6 | 10 | 15 | 20 | 25 | 33 | 40 | 55 | 70 | 110 | |||
 |
4m |
(13')
|
≤ 2 t | ||||||||||
| 5m |
(16')
|
≤ 1 t | ≤ 5 t | ||||||||||
| 6m |
(20')
|
≤ ½ t | ≤ 4 t | ||||||||||
| 7m |
(23')
|
≤ 2 t | ≤ 7 t | ||||||||||
| 8m |
(26')
|
≤ 1 t | ≤ 6 t | ≤ 10 t | |||||||||
| 9m |
(30')
|
≤ 5 t | ≤ 9 t | ≤ 16 t | |||||||||
| 10m |
(33')
|
≤ 4 t | ≤ 8 t | ≤ 14 t | ≤ 25 t | ||||||||
| 11m |
(36')
|
≤ 3 t | ≤ 7 t | ≤ 12 t | ≤ 20 t | ≤ 30 t | |||||||
| 12m |
(39')
|
≤ 6 t | ≤ 10 t | ≤ 15 t | ≤ 25 t | ||||||||
| 14m |
(46')
|
≤ 7 t | ≤ 12 t | ≤ 20 t | ≤ 40 t | ||||||||
| 16m |
(52')
|
≤ 9 t | ≤ 15 t | ≤ 33 t | ≤ 60 t | ||||||||
| 18m |
(59')
|
≤ 12 t | ≤ 25 t | ≤ 50 t | ≤ 90 t | ||||||||
| 20m |
(66')
|
≤ 10 t | ≤ 18 t | ≤ 40 t | ≤ 80 t | ||||||||
| 22m |
(72')
|
≤ 12 t | ≤ 30 t | ≤ 70 t | ≤ 150 t | ||||||||
| 24m |
(79')
|
≤ 25 t | ≤ 60 t | ≤ 130 t | |||||||||
| 26m |
(85')
|
≤ 22 t | ≤ 50 t | ≤ 115 t | |||||||||
| 28m |
(92')
|
≤ 45 t | ≤ 100 t | ||||||||||
| 30m |
(98')
|
≤ 40 t | ≤ 90 t | ||||||||||
| 35m |
(115')
|
≤ 80 t | |||||||||||
| 40m |
(131')
|
≤ 70 t | |||||||||||
| 45m |
(148')
|
≤ 60 t | |||||||||||
| Anchor Weight | 4 kg | 6 kg | 10 kg | 15 kg | 20 kg | 25 kg | 33 kg | 40 kg | 55 kg | 70 kg | 110 kg | ||
| 9 lb | 13 lb | 22 lb | 33 lb | 44 lb | 55 lb | 73 lb | 88 lb | 121 lb | 154 lb | 243 lb | |||
Preise und technische Daten können jederzeit ohne Ankündigung geändert werden
Bei jeder Bestellung gelten folgende AGB's als akzeptiert: www.marine-moerth.com/AGB.htm
