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
across the globe
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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Related content
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MAN L21/31DF-M and MAN L27/38DF-M
Discover our methanol-fuelled small-bore engines: MAN L21/31DF-M and MAN L27/38DF-M.
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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
Methane-Fuelled ME-GI Engines Continue to Lead Way with Lowest Methane Slip and Highest Fuel Efficiency
New Times Shipbuilding Co. Ltd. of Jiangsu province, China has ordered 12 × 8G95ME-GI (-Gas Injection) Mk10.5 main engines in connection with the construction of 12 × 18,000 teu container vessels for Eastern Pacific Shipping (EPS), the Singapore-based shipping company.
Bjarne Foldager – Country Manager, Denmark – MAN Energy Solutions, said: “This new, sizable order reflects the great momentum the ME-GI engine has experienced during the building boom that the Very Large Container Vessel segment is currently experiencing. EPS is an old acquaintance of MAN Energy Solutions with whom we have built an excellent relationship over the years. This is just the latest in a series of mutual, recent ME-GI projects and we thank them for placing their trust in us again.”
Thomas S. Hansen – Head of Two-Stroke Sales and Promotion – MAN Energy Solutions, said: “The ME-GI’s mature technology brings a number of advantages to the table, not least its guaranteed, extremely low levels of methane slip that make it the most future-proof methane engine on the market. It also has the highest fuel efficiency in its class, which explains why the G95ME-GI Mk10.5 has been specified for more than 60 Very Large Container Vessel newbuilds in just the past two months. The ME-GI is furthermore capable of operating on bio-methane and synthetic natural gas that render it net-zero and provide a viable decarbonisation pathway for shipowners.”
The ME-GI engine – the industrial standard
MAN Energy Solutions successful ME-GI (-Gas Injection) engine has set a new industrial standard for two-stroke propulsion engines aboard – among others – RoRo vessels, PCTCs, container vessels, bulk carriers, tankers and LNG carriers. The ME-GI engine provides ship owners, charterers and operators with a peerless solution within environmentally friendly and high-efficiency, two-stroke technology but without the prominent methane-slip emissions that are characteristic of competing engines.
The Diesel principle not only provides the ME-GI engine with high operational stability and efficiency, but also ensures 100% reliable operation during load changes on gas with just normal additions of pilot-oil amounts. Furthermore, the ME-GI operational principles features a seamless change-over between gas and diesel operation. The ME-GI engine is the most environmentally-friendly technology available within the LNG-fuelled, two-stroke engine segment.
MAN Energy Solutions has also developed an ME-LGI (-Liquid Gas Injection) dual-fuel engine that expands the company’s dual-fuel portfolio, enabling the use of sustainable fuels such as green methanol.
Documents
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PR ME-GI Container momentum_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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- EN