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Leading the way in sustainable two-stroke propulsion

MAN B&W two-stroke engines offer unrivaled fuel flexibility and thus future-proof propulsion. Our two-stroke engines are already now capable to operate on a broad variety of alternative fuels – from methanol, to methane and ammonia.

By placing your trust in a reliable partner, you can benefit from reliable and proven technology – today and in the future.

Let’s navigate the future of shipping together.

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More than
1700
dual-fuel engines on order or in service
more than
50
%
of kWh in the two-stroke order book are now for dual-fuel engines

High power combined with high efficiency:
Discover our portfolio of proven MAN B&W two-stroke engines

MAN B&W ME-C

Our ME-C engines with electronic controls serve up a host of advantages. You can look forward to superior performance parameters, compactness, fully integrated electronic control as well as the necessary fuel injection pressure and rate shaping at any load. Plus the ME-C engine can be retrofitted for alternative fuels such as methanol, LPG, LNG or ethane as well as ammonia from 2025.

  • Engine speed: rpm to 56 – 167
  • Output: 4,350 – 82,440 kW at L1
 

MAN B&W ME-GI

The ME-GI engine impresses with extremely low methane slip emissions and very high fuel efficiency. It is the most environmentally friendly LNG-fuelled engine on the market. By the optional use of fuel oil or LNG/bio-methane/SNG, it represents a highly efficient, flexible, propulsion-plant solution.

  • Engine speed: rpm to 56 – 167
  • Output: 4,350 – 82,440 kW at L1

 

Explore ME-GI

MAN B&W ME-GIE

The technology of the ME-GIE is based on our successful ME-GI engine. This engine can be operated with ethane as well as fuel oil – which makes it the standard choice for ethane carriers. This engine offers very competitive fuel oil and gas consumption, plus operational stability and efficiency due to the diesel principle.

  • Engine speed: 72 – 100 rpm
  • Output: 8,600 – 21,440 kW at L1

MAN B&W ME-LGIM

Our ME-LGIM is a dual-fuel engine characterized by its high efficiency and capability of operating on methanol. With a proven record of more than 600.000 operating hours on methanol alone, the engine concept is proven and provides a high degree of reliability. When fuelled by green methanol, our ME-LGIM engine can offer truly carbon-neutral propulsion, while reducing sulphur and particle matter emissions significantly at the same time.

  • Engine speed: 56 – 125 rpm
  • Output: 6,950 – 82,440 kW at L1
Explore ME-LGIM

MAN B&W ME-LGIP

Our ME-LGIP is the only two-stroke dual-fuel engine on the market which can be fuelled with LPG. The low operational costs as well as the simple retrofit solution are particularly convincing.

  • Engine speed: 72 –103 rpm
  • Output: 8,600 – 22,720 kW at L1
Explore ME-LGIP

Always an optimal choice

The MAN Energy Solutions two-stroke portfolio delivers the highest performance and efficiency across all engine types.

MAN B&W two-stroke engines from the 35 to 95 cm bore sizes have a total power range from 4,350 kW to 82,440 measured at L1. With a vast range of different fuel injection concepts from traditional fuel oils, to gaseous and liquid gasses, MAN ensures that you have your future fuel strategy covered.

All MAN B&W engines follow the same naming convention and seemingly random engine names actually carry a lot of useful information.

up to
82,4
MW/engine
Power output

Explore our interactive marine propulsion systems

Click here to access our Interactive Product Experience and see how MAN marine products enable a ship to operate on sea efficiently and reliably. Each of the products shown have their own key features displayed in 3D and explained. Explore our two-stroke main engine, GenSets, turbocharger, CP propeller and control system and our innovative digital offering “PrimeServ Assist”.
Go to interactive product experience

Worldwide service solutions

MAN PrimeServ, a global service partner for MAN Energy Solutions, ensures efficient and high-performance engines. With a proven track record, we offer excellence in service solutions, helping optimize existing assets and safeguarding your bottom line.
Go to MAN PrimeServ Marine

Dedicated to developing solutions

Are you are wondering what role our two-stroke technologies could play in your future? We are happy to answer your questions.

Talk to our experts

Useful tools

Make a choice

Two-stroke engine calculator for all ME and ME-B engines.

A two-stroke tool for supporting the negotiations between the yard, engine maker, and the customer.

Drawings of our two-stroke ME and ME-B engines and four-stroke GenSets provide guidance in the planning process.

Technical downloads

Access our complete engine portfolio – via PDF or app.

Read and download our Market Update Notes.

Our technical papers provide information on new engine developments and trends, service experience and maintenance, emission requirements, and much more.

Continue reading

  • MAN L27/38DF-M
    pdf, 386 KB
  • The Methanol-fuelled MAN B&W LGIM engine
    pdf, 9427 KB
  • MAN B&W ME-LGIM
    pdf, 404 KB
  • Economiser energy control for increased service steam production.
    pdf, 3390 KB
  • Power into the future B&W ME-LGIP:
    pdf, 1511 KB
  • Efficiency improvements Main engine auxiliary systems
    pdf, 4409 KB

Related products

Related news

Thursday, February 13, 2025

ME-GI Engine Orders Pick Up Momentum in LNG Carrier Segment

Dual-fuel engines bound for LNG newbuilds

South Korean shipyard, Hanwha Ocean Co. Ltd., has ordered 4 × MAN B&W 5G70ME-GI Mk10.5 engines in connection with the construction of 2 × 174,000 cbm. LNG carriers for an undisclosed shipowner. Hanwha Engine Co. Ltd. will build the engines in South Korea and the contract contains an option for two additional vessels. Each engine will come integrated with MAN Energy Solutions’ proprietary EGRBP (Exhaust Gas Recirculation ByPass) system.

Bjarne Foldager, Head of Two-Stroke Business, MAN Energy Solutions, said: “It’s very satisfying to see our ME-GI engine orders also pick up momentum within the important LNG carrier segment. The ME-GI’s mature technology delivers guaranteed, extremely low levels of methane slip that make it the most future-proof methane engine on the market.”   

Christian Ludwig – Head of Two-Stroke Sales and Promotion – MAN Energy Solutions, said: “To date, we have achieved a total of more than 890 ME-GI references, either on order or in service, with over 110 of those within the LNGC segment alone. The ME-GI engine has several favourable characteristics, including a best-in-class performance, the highest thermal efficiency for methane-fuelled two-stroke engines, as well as millions of reliable operating hours. The ME-GI – not being sensitive to fuel properties – is furthermore capable of operating on bio-methane and synthetic natural gas that render it net-zero, providing a viable decarbonisation pathway for shipowners.”

The ME-GI engine – an 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. These design merits have made the engine the standard propulsion system for the LNG-fuelled fleet.

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’s operational principles feature 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

  • PR New ME-GI orders
    PDF, 292 KB English

Images

  • 5g70me-c-10.5_side02
    JPG, 2506 KB English

Contact

Nils Søholt

Trade Press Marine

Group Communications & MarktingMAN Energy SolutionsTeglholmsgade 412450 Copenhagen SVDenmark

t +45 33 85 26 69

Available languages

Methane-fuelled MAN B&W ME-GI two-stroke engine

The MAN B&W ME-GI has been in service for more than a decade already, and with a continuous focus on optimizing the engine design, it remains a preferred choice across vessel segments and sizes. 

Watch the recording of our two-stroke MAN ExpertTalk where we take a closer look at the new 10.7 engine platform, the improved gas return system, and general engine availability.

Go to recording