Cargo particulars and task
A customer approached us to arrange delivery of 4 × 350 m³ tanks and 3 × 250 m³ tanks from Estonia to Bergen and Kristiansund in Norway. Each tank had a diameter of approximately 4.8–5.2 m
Solution
Given the dimensions and quantity, sea transport was the only practical option.
As a rule, oversized cargo to Norway should be transported by sea whenever possible. Norwegian authorities rarely permit road transport for units of this size across the country.
Seven tanks covered approximately 700 m² of deck space. This normally justifies a full cargo vessel charter.
However, we secured a small twin-deck liner vessel willing to combine our cargo with other shipments. This solution reduced overall transport costs.
Challenges
One of the main challenges was the absence of dedicated lashing points on the tanks.
It is important to note that a lifting point is not automatically a lashing point. Load directions and forces differ. A point suitable for lifting may fail under lashing tension
What was done
First, we increased friction between the cargo and deck using wooden dunnage and rubber mats.
Second, we used reinforced lifting points for tie-down lashing. These areas had structural support and were additionally stabilised with cradles.
We also obtained manufacturer’s approval to use bolting holes at the base of the tanks. We supplied 22 mm pin shackles that matched the hole diameter.
This allowed us to apply chain lashings at lower angles, effectively securing the cargo against lateral forces.
Result
The selected solution allowed safe securing. Thanks for plenty of lashing materials available on board we got it easy, just arranging specific shackles and dunnage. Bon voyage to Norway!
If you are dealing with similar cargo, feel free to get in touch.
