Rockna anchor

Discussion in 'Announcements & FAQs' started by BillS, May 26, 2020.

  1. BillS

    BillS New Member

    May 2, 2020
    St. Petersburg, Fl.
    SeaRay 44 Sedan flybridge, 2006.
    Cummins 500 hp, diesels, QSC 8.3
    We have a 2006, 44 sedan fly bridge- I am debating exchanging my CQR to. Rockna anchor, has anyone done this and if so, what size? I am looking at the 55 lb. One.
  2. Third Edition

    Third Edition Active Member

    Apr 9, 2017
    NE Florida
    360 Sundancer 2002
    T-8.1L V-drives
    Rocna was a well respected anchor until it moved manufacturing to China and, reportedly because of a change in the metal used, the shanks started bending.

    There also seems to be an issue with Rocna, and its somewhat clone Manson Supreme, not resetting:

    I have had a 35# Manson Boss on the boat for 3 years. Sets well in the sand and the mud we have here. Have not had problems with it resetting. All chain rode. Fits on the stock bowroller just fine.
  3. juggernaut1

    juggernaut1 Active Member GOLD Sponsor

    Apr 19, 2015
    Perth, Western Australia
    2006 38 Sundancer
    8.1S / ZF 63V Drives
    I installed a Rocna after losing my Delta from a failed swivel a few years ago. No comparison. The Rocna sets first time every time and stays set with less scope, which is handy in crowded anchorages. I anchor in predominantly sand and sand/weed.

    It also fits perfectly in the anchor chute as it has the same/similar shank profile as the Delta. It also rights itself every time when it is pulled into the chute, which the Delta did not always do and had to be dropped again to rotate.

    I've teamed up the Rocna with a Mantus swivel and am very happy and pleased with both of these products.

    I also read the quality control issues, but have not experienced any issues yet, so I wonder if it was a bad batch.
    Last edited: May 26, 2020
    Third Edition likes this.
  4. mquiet

    mquiet Well-Known Member

    Aug 4, 2009
    North carolina
    1999 480 Sedan Bridge
    Caterpillar 3196
    I have Rockna and as stated, never an issue. It buries quickly and holds well. We spend quite a few nights on the hook and never an issue.
  5. my3sons

    my3sons Well-Known Member GOLD Sponsor

    Feb 24, 2009
    NY (Lake Erie)
    2004 400DB, Onan 9 kw Gen, Highfield RIB,
    Cummins 6CTA
    According to some members, the 25 kg (55 lb) fits well in the bow roller. Check out post # 1611 in the 420/44DB thread.
    I have the 33 kg and it’s a tight fit that required a little modifying but I love it. FWIW It always self rights, I do not use a swivel.
  6. Pura Vida dos

    Pura Vida dos New Member

    Oct 23, 2017
    Grand Haven MI / Punta Gorda FL
    2005 420 Sedan Bridge, Highfield 340 on Freedom Lift, Garmin 7612
    Cummins 480CE
    Ditto! on the Rocna, great anchor!
    55# is a perfect fit, I switched to the 73# also because I got a great deal. Also had to do a slight bit of grinding at Marks advice. Love it!
  7. craigswardmtb

    craigswardmtb Active Member

    Jul 2, 2013
    Mystic, CT
    2004 420 DB
    2005 360 Fiesta Vee
    Cummins 6CTA
    I just installed the 25kg Rocna last weekend. It fits my bow roller just barely as the topside of the shank does come into contact with the pulpit a tiny bit. But it is otherwise very secure and a snug fit. I use the larger Suncor swivel in the below link, which i also had the smaller one on my last boat.
    This anchor is night and day better than any Delta style anchor IMO. After dragging incidents, I started using Rocna in 2013 on my 360 and now on my 420 DB. We anchor overnight alot and i no longer worry. It sets and resets great. Now i have all chain so i sleep even sounder...
    Third Edition likes this.
  8. Jcclark85

    Jcclark85 New Member

    Dec 16, 2019
    2002 Sundancer 360
    8.1S Horizons

    What size Rocna did you use on your 360? I’m looking to upgrade my anchor on my 360. Did you have to make any mods? Thanks for the help
  9. BlueYonder

    BlueYonder Active Member

    Jan 12, 2015
    Chesapeake Bay
    QSC 8.3 600
  10. ManteoMike

    ManteoMike New Member

    Aug 7, 2018
    2005 390 Motor Yacht
    Cummins 480 CE
    We have the Rocna 25 kg (55 lb) on a 390 Motor Yacht. Works great, quickly and holds. Fits tightly into the bow roller but not quite perfectly as mentioned above. But it is secure and does not move.

    The test video cited above was done with a scope of 3.5 to 1 which may be why the fouled anchor would not reset. I use a scope of 7:1 for other than a lunch time stop.

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