Gangway access systems

More than 1000 shore access systems for oil and gas terminals in 70 countries around the world. Since supplying the first gangway system in 1966, we have developed a large number of standard designs, which are flexible to be adapted according to specific customer requirements.

Basically there are three main designs:

 
  • Tower gangway type, with a telescopic gangway that moves vertically along the tower by means of a lifting platform. Thanks to its lifting platform, the tower gangway can cover all levels of the ship deck, from small barges to ultra-large crude carriers, in combination with ship movements resulting from tidal movements, loading and unloading, and wave movements
  • Column gangway typewith a telescopic gangway at a fixed height. The column type is suitable for reaching ship deck levels from well below to a maximum of approximately 18 meters above the jetty deck
  • Riding ladder can be used when the variation of ship deck levels is limited and sufficient space is available on the jetty deck

Due to their proven and robust design, all our access gangways have a long service life and low maintenance cost.

Access gangways are widely used in the oil industry. 

See also other products related to Jetties: quick release mooring hooks, marine loading arms, berthing aid systems.

Tower Gangway Type

The Access Tower has a telescopic gangway that moves vertically along the tower by means of a lifting platform. As a result, the gangway-tower can cover the deck levels of ships, from small barges to ultra-large crude carriers, in combination with ship movements (tides, loading/unloading, drifting, etc.). Each lift station can be accessed by access ladders and platforms mounted inside the tower structure.

Once the gangway has been positioned on the vessel deck and reaches its maximum up or down angle, the lifting platform will automatically move to the next level, without the presence of an operator. Prior to this movement, an alarm will alert all personnel to clear the gangway. Also the wave and rolling movements of the ship will be followed freely within its design range.

The gangway movements are driven by hydraulic cylinders, operated by a hydraulic control box mounted on the lifting platform. The movement of the lifting platform is driven by a lifting device (winch or hydraulic cylinder).

The Gangway Tower has many optional features such as crane, fire monitor, control cabin and cover for the protection of its users against, for example, extreme weather conditions. Other customer specific requirements can also be integrated into the design of the gangway tower.

Column Gangway Type

The column has a turntable at a fixed height that can be accessed by access ladders mounted next to the main structure. The telescopic gangway is mounted on the turntable and, after placement on the ship deck, will freely follow all movements within its design range without the need for an operator to be present. The column type is the most popular design for reaching ship deck levels from well below to a maximum of about 18 meters vertical reach.

The gangway movements are driven by hydraulic cylinders, operated by a hydraulic control box mounted on the control platform.

The column type can be optionally equipped with crane, lighting, alarms, fire monitoring and/or cabin. Other customer specific requirements can also be integrated into the design of the walkway column.

The major benefit of the Column design is that it has a small foundation plate, which requires very little space on the jetty deck.

Riding ladder

Riding ladder systems vary in design from manual to fully hydraulic or electric. Typically, the ladder system has a fixed length. The sway motion of the vessels is compensated by the riding motion.

In general, the riding ladder is more economical in design compared to tower and column designs with similar operating envelopes, but requires much more dock space.

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