Hartman Seatrade has placed an order for the Hartman Class 500, a new heavy-lift cargo vessel that marks an important step in the company’s fleet development strategy. The vessel will be the first newbuilding constructed under Rock Shipbuilding, a recently established subsidiary.
The Hartman Class 500 is designed as a compact, multifunctional cargo vessel with strong heavy-lift capabilities. Building on experience gained with the vessel Deo Volente, the new design is intended primarily for the transportation of heavy project cargoes. Its configuration allows flexible deployment across a range of specialised markets, including wind energy, offshore construction, oil and gas, defence-related transport, and yacht shipping.
The vessel will be equipped with two cranes offering a combined lifting capacity of 500 tonnes. With a deadweight of approximately 4,600 tonnes and a maximum speed of 19.5 knots, the Hartman Class 500 represents a significant performance upgrade compared to the existing fleet. The design has been developed in cooperation with Groot Ship Design, with a focus on operational efficiency, versatility and practical applicability.
Efficient and low-emission design
Efficiency and sustainability are key elements of the Hartman Class 500 concept. Propulsion will be provided by a Wärtsilä 31 main engine, recognised for its high efficiency among four-stroke marine engines. In addition, the vessel will feature a substantial battery system, enabling emission-free operation at speeds of up to approximately 11 knots.
Port operations, including crane handling, can also be carried out fully emission-free through an extensive shore power connection, supporting reduced environmental impact during loading, unloading, and harbour stays.
Construction and delivery
Construction of the vessel is scheduled to commence later this year at a shipyard in Poland. Launch is planned for mid-2027, after which the vessel will be towed to the Netherlands for final outfitting. This final phase will be carried out in Harlingen in cooperation with various specialist suppliers.
The Hartman Class 500 is expected to enter service in the first quarter of 2028, further strengthening Hartman Seatrade’s position in the heavy-lift and project cargo market with a vessel designed for efficiency, flexibility, and future operational requirements.
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