Reliable and efficient four-stroke small-bore engines
Regulatory and fuel-related uncertainty can make it difficult to plan investments in propulsion and GenSets. With our small-bore engines, you are prepared for whatever lies ahead.
MAN Energy Solutions has built its position as the leading designer and developer of small-bore engines for the world’s merchant marine fleet on the basis of high reliability and efficiency.
Thanks to the low maintenance requirements, our engines provides extended lifetime, and additionally offer long time between overhauls (TBO). When needed, our service experts are there for you – every day and everywhere around the world.
MAN small-bore engine portfolio for the world’s merchant fleet
Key benefits
Full range of MAN four-stroke small-bore engines
Explore the capabilities and range of our engines.
GenSets and Diesel-electric propulsion
MAN L28/32DF GenSet
Based on the ultra-reliable and robust MAN 28/32H, the dual-fuel version is available as newbuild or retrofit and adds the ability to run on methane, with its economic and environmental advantages. High efficiency in gas and diesel mode makes it a perfect GenSet as part of a complete power package with four-stroke or two-stroke propulsion engines. Easy operation, easy maintenance and proven reliability also make it a trusted propulsion engine with long times between overhauls and low life cycle costs.
- 720 – 750 rpm
- 1,050 – 1,890 kW
- 1,000 – 1,800 kWe
MAN L23/30H Mk3 GenSet
By applying innovative technology to classic design principles, the MAN L23/30H Mk3 is engineered to meet the power needs of most commercial ship types. Straight forward integration requirements make it a perfect choice for low-cost installation, while well-known maintenance procedures and common spare parts reduce operating costs. The new model raises power output per cylinder by 15-20% and reduces fuel oil consumption.
- 720 – 900 rpm
- 500 – 1,800 kW
- 475 – 1,710 kWe
MAN L23/30DF GenSet
The MAN L23/30DF dual-fuel GenSet lets you select the most economic fuel for the operating condition. The cost optimized fuel injection system is designed for high reliability and cost-efficiency. It uses the main injection valve to inject pilot oil. This way, separate injectors, piping and pumps for main oil and pilot oil or a common rail system are not needed, saving on installation costs and maintenance. The monocoque design also eases the installation of the engine series and reduces weight.
- 720 – 900 rpm
- 625 – 1,320 kW
- 590 – 1,255 kWe
This methanol-fuelled engine is a compact and reliable power source designed to run on methanol, heavy fuel oil (HFO), and most bio-fuel oils. When powered by green methanol, it is carbon neutral. The new engine type maintains the reliability and low consumption of the proven MAN 21/31, ensuring security of power supply on large vessels and handling load steps with confidence.
- 900 – 1,000 rpm
- 1,000 – 1,980 kW
- 950 – 1,880 kWe
Propulsion engines
The robust and reliable MAN L27/38 delivers good performance over the entire load range with quick acceleration and immediate load response. Its proven reliability ensures long time between overhauls (TBO) and no unscheduled maintenance or repair work.
This engine is available as methanol-ready version.
- 750 – 900 rpm
- 2,100 – 3,690 kW
MAN L21/31 propulsion
The MAN L21/31 engine combines intelligent use of fuel in marine applications with flexible propulsion systems. It is the ideal power source, for example, for small to medium-sized tankers, cargo ships and ferries.
The proven engine is characterized by its reliability and low consumption.
This engine is available as methanol-ready version.
- 1,000 rpm
- 1,290 – 1,935 kW
Plan your vessel with confidence
Get in touch with our four-stroke small-bore experts for in-depth advice on all your propulsion and GenSet questions. Start your change process now and reach out to us today.
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MAN L21/31DF-M
The MAN L21/31DF-M methanol GenSet is the first small-bore dual-fuel methanol GenSet in our portfolio.
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Methanol GenSet
Engineers in Denmark are making shipboard power low-emission with the developing of a four-stroke methanol engine.
Related news
MAN Energy Solutions Signs MoU with Eastern Pacific Shipping on Ammonia Training Development
MAN Energy Solutions has signed a Memorandum of Understanding (MoU) with Eastern Pacific Shipping (EPS) at Posidonia 2024 International Shipping Exhibition in Piraeus, Greece, on the development of crew training for the handling of ammonia as fuel on vessels.
Signed between Cyril Ducau, Chief Executive Officer for EPS and Bjarne Foldager, Country Manager, Denmark for MAN Energy Solutions, the MoU will enable EPS to be trained alongside MAN Energy Solutions’ engineers on the safe handling of ammonia for its dual-fuel engines, and to develop training material to strengthen capability building on the transportation of alternative fuels like ammonia over time. Both signatories are committed to further this process working alongside classification-society and regulators.
Ducau said: “This MoU not only underscores the significance of our partnership with MAN Energy Solutions as we pioneer the industry’s green transformation, it also complements our recent commitment to collaborate with stakeholders like the Maritime and Port Authority of Singapore, to create the right environment for the safe transportation of alternative fuels like ammonia. It will enable us to address challenges more holistically to develop tailored training that will enhance crew safety and strengthen environmental aspects as we decarbonise the global shipping industry safely.”
MAN Energy Solutions’ relationship with EPS goes back decades. Currently, EPS is working diligently with MAN Energy Solutions to enable the delivery of MAN B&W dual-fuel ammonia engines for a number of Very Large Ammonia Carriers and Newcastlemax bulkers. More recently, MAN Energy Solutions presented EPS with a plaque commemorating its one-thousandth dual-fuel engine order being received for one of EPS’ vessels.
Foldager said: “At MAN Energy Solutions, we have always been impressed by EPS’ seafaring personnel who have proven themselves eminently capable of adapting to change and tackling all manners of technical challenges. This ‘can do’ spirit and commitment to excellence will come to serve them well when handling an alternative fuel like ammonia and the unique challenges it presents. The training that EPS personnel will receive will cover a range of innovations and safety measures that we have incorporated into our ammonia engine design to ensure safe and reliable operation at sea. I can think of no better launch partner with whom we could have worked.”
About Eastern Pacific Shipping
With a history spanning 60 years, Eastern Pacific Shipping Pte. Ltd. (‘EPS’) is a leading shipping company that is committed to the green and technology-driven growth of the industry. Headquartered in Singapore for the past 30 years, EPS is driven by its mission to be the safe and efficient transportation provider of choice to the shipping industry. Empowering that mission is a 6,000 strong and growing workforce across sea and shore. They oversee a versatile fleet of over 270 vessels and 28 million deadweight-tonnes across four core segments of containership, dry bulk, gas and tanker vessels. EPS’ shore team is fully integrated with in-house commercial, finance, innovation, IT, legal, manning, operations, and technical departments.
Pictured at the MoU signing (front, left to right) Cyril Ducau, Chief Executive Officer, EPS and Bjarne Foldager, Country Manager, Denmark, MAN Energy Solutions
Documents
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PR Ammonia EPS MoU_EN
Contact
Nils Søholt
Trade Press Marine
Group Communications & MarktingMAN Energy SolutionsTeglholmsgade 412450 Copenhagen SVDenmark
nils.soeholt@man-es.com t +45 33 85 26 69Available languages
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