Why a Rocna is best: key features
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)
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
Don't take their word for it, read this independent test report.
Guaranteed – unconditional guarantee your Rocna will be the best anchor you’ve ever used.
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
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 high tensile steel. A Rocna is rock solid with no moving parts, eliminating complex adjustment systems and potentially dangerous failure points. As with other fixed shank anchors if using a swivel anchor connector, make sure it is the doulbe swivel type to avoid shear stress on the swivel pin.
Durable A hot dip galvanized finish covers the entire surface of every Rocna with protective zinc, including the interior of the hollow rollbar
Sizing chart
To choose the correctly sized Rocna, match your vessel’s length with the most appropriate displacement range, also bearing in mind conditions of intended use (if in doubt, give preference to the larger anchor model).
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1 t = 1,000 kg | * Weights and areas may vary slightly For multi-hulls: use the chart as instructed, then select the model one size larger
Unlike other manufacturers, our sizing recommendations are intended to provide an anchor adequate for use in most all conditions.
Watch this video interview with Peter Smith, designer of the Rocna.
Finally, if you have read comments on some sailing forums or magazines, please take the time to read this response from Canada Metal (Pacific) Ltd who now own Rocna.