Vuyk Engineering was selected by Jumbo Maritime for the design of its new L-Class heavy lift vessels, ships intended for transport operations and offshore lifting of special cargoes.
The units will be built by Dajin Heavy Industry and will form part of a new generation of versatile vessels for energy, infrastructure, and heavy lift projects. The first vessel is scheduled for delivery in the third quarter of 2028.
Offshore heavy lift vessels
The new L-Class vessels will be designed to transport a wide range of heavy cargo, including wind turbine components, industrial modules, and carousels used in offshore projects.
The design integrates a large cargo hold, an extensive deck for project cargo, and two high-capacity Huisman cranes. This configuration will allow for transport and lifting operations to be executed from a single platform, reducing the need for additional resources during maneuvers.
Each vessel will be equipped with two 1,200-tonne cranes, allowing for a combined lifting capacity of up to 2,400 tonnes per unit.
Vuyk collaborated with the Jumbo team
Vuyk Engineering worked alongside Jumbo Maritime’s internal design team to define the main dimensions, performance characteristics, and operational configuration of the new vessels.
The project placed special emphasis on optimizing service speed and fuel efficiency, two critical aspects for long-range operations and heavy lift projects with high logistical demands.
Floris Toetenel, Director of Vuyk Engineering, highlighted that the collaboration focused on defining a new series of vessels capable of transporting and handling offshore heavy lift cargo through the efficient use of their own cranes.
Efficient design and methanol-ready
Jumbo Maritime reported that the L-Class vessels will be 25,000 DWT and will be prepared to operate on methanol, a feature aligned with modern maritime transport requirements for a lower environmental footprint.
The units will also comply with DNV classification standards and navigation requirements associated with cleaner energy solutions. Their design will include high deck strength, a large open surface area, a deep hold, substantial cargo capacity, and advanced lifting performance.
These features respond to the growing demand for vessels capable of combining greater cargo capacity with more demanding lifting operations.
Integration into the JSI Alliance fleet
The new L-Class vessels will be integrated into the JSI Alliance fleet, a commercial alliance established by Jumbo and SAL in 2021, and expanded in 2024 with the addition of SAL Intermarine.
This alliance operates a combined fleet of more than 80 vessels serving global project cargo, energy, industrial, and infrastructure markets.
With the new L-Class, Jumbo Maritime aims to strengthen its capacity in sectors such as offshore wind, oil and gas, mining, and other specialized maritime projects requiring heavy transport and integrated lifting.
First vessel to arrive in 2028
The first vessel will be delivered in the third quarter of 2028, while the second is scheduled for 2029. Construction at Dajin Heavy Industry marks a new stage of industrial collaboration between the shipyard and Jumbo Maritime.
The L-Class design reinforces Vuyk Engineering’s track record in heavy lift transport vessels, combining sailing performance, energy efficiency, and cargo handling capability.
With this new series, Jumbo Maritime will expand its fleet with vessels designed to handle larger cargoes, more complex offshore projects, and operations requiring logistical flexibility from a single maritime platform.
Source and photo: https://www.vuykrotterdam.com/
