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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Related content
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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
World’s Largest Car Carriers Ordered with MAN Energy Solutions Propulsion Package
Chinese yard, Guangzhou Shipbuilding International (GSI), has received an order for 4 × MAN B&W 8S60ME-GI engines in connection with the building of 4 × 10,800 CEU Pure Car and Truck Carriers (PCTCs) for South Korean shipping owner, HMM Co. Ltd.. CSIC Diesel Engine Co. Ltd (CSE) will build the Mk10.5 dual-fuel -GI (-Gas Injection) engines in China, which will feature Exhaust Gas Recirculation (EGR) emissions-reduction technology for Tier III NOx compliance.
Upon delivery, the PCTCs will go out on charter to Hyundai Glovis Co., Ltd., the logistics company headquartered in Seoul, South Korea and part of the Hyundai Kia Automotive Group.
MAN Energy Solutions will also provide the 3 × MAN 8L28/32DF (Dual-Fuel) GenSets aboard each vessel with CSSC Marine Power Zhenjian Ltd. (CMP) set to build these, also in China.
Bjarne Foldager – Country Manager, Denmark – MAN Energy Solutions, said: “We are delighted to secure this order, underscoring MAN Energy Solutions' ability to deliver comprehensive propulsion solutions for cutting-edge PCTC projects. This achievement sets the stage for establishing a market standard in next-generation PCTC vessels, integrating our trusted and proven engines. Winning contracts for both main and auxiliary engines aligns with our strategic goal of providing complete propulsion packages. Congratulations to HMM for their bold commitment to decarbonisation.”
Thomas S. Hansen – Head of Sales and Promotion – MAN Energy Solutions, said: “The car carrier market is currently thriving and demand for new tonnage is at an all-time high. Most of these newbuildings are with dual-fuel engines – on account of new emission regulations – with LNG leading the way as most popular alternative fuel. That said, our main engines here will also be delivered as both methanol- and ammonia-ready. Accordingly, the ME-GI engine remains the most prominent dual-fuel engine in the market with more than 700 orders. It is the world’s most efficient, methane-fuelled engine and has extremely low levels of methane slip, which make it the industry’s leading dual-fuel engine across vessel types such as container vessels, bulk carriers, tankers, as well as car carriers.”
The MAN B&W ME-GI engine
Documents
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PR HMM PCTCs_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