(*) Classification Rules sizing

Rocna anchors from size 110 kg (243 lb) and above may be sized based on classification society Rules for Ships for SHHP anchors. Modern rules permit a mass 33% lighter than HHP types, or 50% lighter than “standard stockless” types. Anchor sizing is based on a vessel’s separately calculated Equipment Number (EN). For more information, please consult the Rocna Knowledge Base articles on our sizing recommendations and Classification and Certification.

  Equipment Number (EN) range (applies to Lloyd's, RINA)
  50-70 70-110 110-130 130-175 >175
ROCNA MODEL 110 150 200 275 Please enquire
Anchor weight 110 kg 150 kg 200 kg 275 kg
243 lb 331 lb 441 lb 601 lb
Fluke surface area 2300 cm2 4470 cm2 5560 cm2 6510 cm2