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Prosertek Prosertek
  • Home
  • Harbour equipment
    • Berthing Aid System
      • Download BAS brochure
      • Modules
        • Dockmoor-BM
        • Dockmoor-MS
        • Dockmoor-HDT
        • Dockmoor-ER
        • Dockmoor-FP
        • Dockmoor-LD
        • Dockmoor-RR
        • Dockmoor-Web
      • Success stories
    • Quick Release Hooks
      • Configuration
      • Auxiliar systems
        • Capstan
        • Automatic release
        • Load pin
      • Specifications
        • Material
        • Work loads
        • Paint
        • QRH Consumptions
      • References
    • Marine Gangways
      • Download gangways brochure
      • Types of gangways
      • Specifications
        • Regulation
        • Elements
        • Handling and control
        • Actuators and movements
        • Operative modes
      • References
    • Boarding Bridges
      • Download boarding bridges brochure
      • Regulations
    • Marine Cranes
      • Configuration
      • Specifications
        • Hydraulic group
        • Power and control
    • Marine Fenders
      • Types of fenders
        • SC Type
        • TCN Type
        • HZ Type
        • IV Type
        • V, VA, TTV & TTVA Types
        • C Type
        • FL, FLN & FLE Types
        • EC, ECN & ECR Types
        • Other types
      • Specifications
        • Regulation
        • Energy absorption
        • Components
        • Materials
      • References
    • Marine Bollards
      • Download bollards brochure
      • Types of bollards
        • TEE-P Bollard
        • HORN-P Bollard
        • STRAIGHT-P Bollard
        • HAMMER-P Bollard
        • DOUBLE-P Bollard
        • INCLINED-P Bollard
      • Specifications
        • Materials
        • Paint
      • References
  • Services
    • Engineering
    • Technical assistance service
    • Bollard tests
    • Underwater maintenance
    • Portable Pilot Unit
  • Downloads
  • About us
    • Management System
    • Milestones
    • Facilities
    • Gallery
  • Blog
  • Contact
  • Technical Assistance

Elements

Prosertek / Harbour equipment / Marine Gangways / Specifications / Elements
foundation-150x150

Foundations:

Gangways, generally, are placed over a foundation of concrete, where anchor bolts are embedded. A typical configuration has two plates joined with the anchor bolts. One plate, the lower one, is embedded in the concrete and the other, the upper one, is in the upper limit of the foundation, just below the gangway flange.

Access ladder

  • For accessing from the jetty to the fixed platform located on the column, it has hot dip galvanized steps grid. It will be attached to docking by anchor bolts.
ladder-prosertek
Platform and slewing platform

The rotation mechanism of the gangway is formed by a shaft on which is located the slewing platform that gives access to the telescopic ladder.

  • Slewing shaft
    • It relies on a roller bearing and on an axial ball bearing that absorb both axial loads and radial compression. These bearings are housed in a bed endured by the column cantilever.
    • The slewing shaft is guided on a two halves bronze spherical sliding bearing joined to the column.
    • The lower support of the lifting cylinder of the telescopic ladder is located on the slewing shaft.
  • The slewing platform is made one piece with the slewing shaft by bolting it to the same.
    • The slewing cylinder is placed below the platform. Its crankpin is bolted to the turn platform.
    • The telescopic ladder is fixed to the platform. Its front part has the point of union of the luffing ladder.
Telescopic ladder
  • Comprises in two aluminum lattice structures, one external fixed to the slewing platform and one internal sliding on the fixed.
  • The mobile ladder moves guided by teflon wheels. The folding mechanism is located underneath the mobile section that enables the inner segment to slide over the outer scale
  • The fixed scale is attached at one end to the slewing platform and on its underside engages the pin of the lifting cylinder.
  • Both the steps of the outer scale as those of the inside section are self-ajustable, that are always horizontal, regardless of the lifting angle of the telescopic ladder.

 

Bulwark

  • The bulwark ladder is coupled at the end of the telescopic ladder.
  • It’s an aluminum tubular structure, with a tripod form that incorporates an access ladder that can be with fixed  steps or rotary steps with a 180 degree turn.
  • It relies on the deck of the ship over the plastic wheels that can rotate 360 degrees on their vertical axis or counterbalanced so that the bulwark always stays vertical.
  • In the case of rotatory stairs, it incorporates a hydraulic mechanism allowing it to rotate up to 180 degrees.
  • An option exists with 2 points for support. It includes a closed circuit of 2 cylinders to ensure the verticality and stiffness and specific adaptations to each one.
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HARBOUR EQUIPMENT

  • BAS: berthing aid system
  • Quick Release Hooks
  • Marine Fenders
  • Marine Gangways
  • Boarding Bridges
  • Marine Bollards
  • Marine Cranes

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