Page 48 - Wire Rope News & Sling Technology - April 2019
P. 48

         continued from previous page
         nam (1,110,000 NT, up 48%). To the
         right are charts on estimated steel
         import market share in recent months
         and on finished steel imports from off-
         shore by country.
           Reprinted  from the  American  Iron  and
         Steel Institute,

         Lifting is Plain Sailing with
         Reid Gantry Crane
           Newport Uskmouth Sailing Club
         (NUSC), located at the mouth of the
         River Usk in South Wales, is using a
         3,000kg capacity Tall Porta-Gantry
         crane system from Reid Lifting to lift
         boats and other items during repair
         and maintenance work.
           The crane, which has a 6m-long
         beam  and  is  fitted  with  a  Yale  360
         chain block for lifting and lowering
         loads, is principally used to lift vessels
         where work is required to the hull and
         / or keel. The system, fitted with a rope
         control system for lateral movement
         across the length of the beam, is also
         being used for yacht engine replace-
         ments as well as assembling and dis-
         assembling  masts.  Rigging  methods
         vary but NUSC commonly uses strops,
         enabling it to allow for offsets in cen-
         ter of gravity, commonplace in the ma-
         rine sector.
           Previously,  the  sailing  club  had to   Charts courtesy of AISI. For more news about steel and its applications, go to their website at
         pay for rental of a crane on a number
         of occasions throughout the year. The   NUSC,  said:  “The  gantry  will  be  most   have  previously  put  off  because  of  the
         investment in  the Tall Porta-Gantry,   cost effective for individuals who can   costs  involved.  I  anticipate  that  the
         therefore, will pay for itself, said Luke   pay a fee to the club rather than hire   crane will be used on a monthly basis.”
         Rossiter,  design  engineer  at Reid.   a crane for one-off jobs. The club can   The gantry crane boasts several ma-
         Further,  it has  given  the  sailing  club   recoup  the  investment,  albeit  over  a   rine upgrades, including stainless steel
         a lot more flexibility as it is no longer   few years. Its lightness and maneuver-  fasteners,  castor  brackets,  bearings,
         restricted by cost and availability of a   ability are also advantageous features.   and epoxy  plates. Rossiter explained
         crane company.                     Boat owners will be more encouraged to   that the plates prevent galvanic corro-
           Anthony Sperduti, commodore at   tackle maintenance projects they would   sion between dissimilar metals, in this
                                                                               case, the aluminium and the stainless
                                                                               steel. Isolating nylon  pads and wash-
                                                                               ers have also been used throughout the
                                                                               system, again, to prevent dissimilar
                                                                               metals from reacting with one another.
                                                                                 Rossiter  added: “The gantry can
                                                                               be setup safely with  just  four  people.
                                                                               However, as it has a marine upgrade, it
                                                                               can be left assembled in the yard with-
                                                                               out concern of it rusting or corroding.
                                                                               Height adjustment is also very easy
                                                                               and can be achieved with just two peo-
                                                                               ple using the ratchet system on each A-
                                                                               frame as a mechanical aid.”
                                                                                 NUSC also purchased wind-up jack-
                                                                               legs to accommodate the gravel-based
                                                                               ground  conditions  at the  riverside  fa-
                                                                               cility. Using four separate spirit levels
                                                                               on each leg, the gantry can be utilized
                             The 3,000kg capacity Tall Porta-Gantry crane system has a 6m-  even on uneven surfaces. The legs also
                             long beam and is fitted with a Yale 360 chain block. The gantry   provide an  additional height  of  lift  of
                             crane boasts several marine upgrades.
                                                                               300mm  and  allow  for  fine  height  ad-
         48     Wire Rope News & Sling Technology   April 2019
   43   44   45   46   47   48   49   50   51   52   53