Tuesday, February 3, 2026
Power & PropulsionFour-Stroke engineWärtsilä 31 Engine to Power Hartman Seatrade’s Latest Heavy-Lift Vessel

Wärtsilä 31 Engine to Power Hartman Seatrade’s Latest Heavy-Lift Vessel

Wärtsilä 31 Engine Delivers Low Emissions, Fuel Efficiency, and Operational Flexibility for Hartman Seatrade’s New Heavy-Lift Vessel.

Wärtsilä has been selected to supply the engine and propulsion systems for a new 3,800 DWT heavy-lift vessel being built for Netherlands-based operator Hartman Seatrade. The vessel will be constructed at Rock Shipbuilding, the operator’s newly established shipyard.

The vessel will be powered by the Wärtsilä 31 engine, renowned for its industry-leading fuel efficiency and low exhaust emissions. Its modular design reduces maintenance needs and costs while providing operational flexibility for both fast and slow steaming, ensuring optimal performance in all conditions.

“Our focus is on efficiency, reliability, and operational flexibility,” says Teele Hartman, Managing Director of Hartman Seatrade. “Wärtsilä engines have consistently performed well across our fleet. The Wärtsilä 31 offers the performance range we need for both slow and fast steaming, combined with low maintenance requirements. Based on our long-standing cooperation and operational experience, Wärtsilä was the obvious choice for this vessel.”

Wärtsilä will also supply the gearbox which will enable the vessel to operate in PTI (Power Take-In), PTO (Power Take-Off), and PTH (Power Take-Home) modes, thereby further improving fuel efficiency. The vessel’s Controllable Pitch Propeller will be controlled by Wärtsilä EcoControl and hydrodynamically optimised with Wärtsilä’s Opti Design solution. Operating the propeller at low speed when full thrust isn’t needed will also deliver additional fuel savings. The Wärtsilä equipment is scheduled for delivery in spring 2027.

“Ship owners today face pressure to balance costs, reliability and efficiency with sustainability targets, and while maintaining operational flexibility,” says Roger Holm, President of Wärtsilä Marine & Executive Vice President at Wärtsilä Corporation. “Efficient energy use and advanced equipment are key to meeting regulations while staying profitable. The Wärtsilä 31 engine, combined with complementary technologies, offers the most logical path forward for cargo operators.”

Wärtsilä has established a strong relationship with Hartman Seatrade over the years, having supplied equipment for several vessels in the company’s fleet.

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