Description
Vulcan: An inheritance of genuine performance
The Vulcan capitalizes on finely tuned design elements from the Rocna pattern, infusing proven Rocna performance advantages for an extremely quick and reliable set across a range of seabeds combined with the expected Rocna holding power.
- NEW SOLUTIONS FOR OLD CHALLENGES: Breaking from the Rocna design, the Vulcan features a unique and patented shank and fluke geometry – including the innovative roll-palm™ (A) at the rear of the fluke – which self-rights the anchor on the seabed without the use of a roll-bar. This is assisted by the V-bulb™ (B) which extends fluke ballast downward to gain maximum leverage and efficiency. This development permits a larger fluke surface area than competing designs which rely on simple dead weight, while the concave fluke (C) is similar in design to the Rocna.
- FIT FOR ALL VESSELS – AND THEIR OPERATORS: No roll-bar and a carefully designed shank profile (D) ensures a snug fit on the bows of a widely expanded range of vessels. Platforms, bowsprits, prods, stays, and other protrusions are cleared with less inconvenience.
- SMOOTH BOW INTERACTION & COMPATIBILITY:The Vulcan’s shank shape (E) encourages self-launching and self-stowing upon retrieval on the majority of bow rollers, with a liquid smooth action, ensuring ease of use for all operators.
- STRENGTH FROM SOPHISTICATED DESIGN: Working with high tensile steel, the Vulcan shank (E) is further strengthened by our patented I+V profile™ design. This computer optimized I-beam geometry brings higher resistance to bending, and further improves setting performance as the lower V-edge cuts into the seabed. This helps the anchor penetrate more easily to a deep and secure burial
IN THE IMAGE OF THE GODS: Embodying the rugged strength and elegant designs of its namesake – the ancient god of fire and metal smithery – the Vulcan shares the heritage of the Rocna anchor and is born of innovation.
TANDEM ANCHORING ATTACHMENT POINT: For extreme adventurers to extend their horizons even further.
SOLID STEEL: One-piece design for crew safety, ease of use, and simplicity of maintenance.
FINISH OPTIONS: Hot-dip galvanized coating for economical durability, or mirror-polished stainless steel for ultimate aesthetics and extended service life.
Rocna Original/Vulcan Sizing
Vulcan Dimensions

Vulcan Dimensions
Vulcan Shank Hole Dimensions
PID | L, mm | W, mm | T, mm |
---|---|---|---|
VLC4GS, VLC4SS | 26.4 | 9.2 | 8.9 |
VLC6GS, VLC6SS | 30.3 | 10.6 | 10.2 |
VLC9GS, VLC9SS | 34.6 | 12.2 | 11.7 |
VLC12GS, VLC12SS | 38.1 | 13.4 | 12.9 |
VLC15GS, VLC15SS | 41.1 | 14.4 | 13.9 |
VLC20GS, VLC20SS | 45.2 | 15.8 | 15.3 |
VLC25GS, VLC25SS | 48.7 | 17 | 16.4 |
VLC33GS, VLC33SS | 53.4 | 18.8 | 18 |
VLC40GS, VLC40SS | 56.9 | 20 | 19.2 |
VLC55GS, VLC55SS | 63.3 | 22.2 | 21.4 |
