Our reliable liquid fuel (HFO) machines – for cleaner power
MAN Energy Solutions has a long tradition of excellence in combustion engines – and produces the most efficient, advanced models on the market today.
Our successful diesel engines have been in use in power plants around the globe dating back to 1904. Known for their fuel flexibility and high efficiency, our latest models are ideal for base- and peak-load power generation. They are also very agile – offering fast start capabilities as well as high partial-load efficiency and low-load operation capabilities. MAN Energy Solutions also designs liquid fuel engines with two-stage turbocharging to boost fuel efficiency even further and avoid derating at high temperatures and altitudes.
Our liquid fuel engines are also very versatile: They run on crude oil, heavy fuels and distillate diesel oils, but also a range of renewable fuels – including vegetable oils, animal fats and biofuels. While our engines meet all emissions requirements alone or with additional technologies, we also offer exhaust gas after-treatment technologies to make them even cleaner and greener.
Up to 21,600 kWm
This liquid fuel engine is cost-effective, efficient and a strong performer. It’s also easy to upgrade to dual fuel or gas capability if needed. Also available with two-stage turbocharging.
Engine Speed: 500/514 rpm
Frequency: 50/60 Hz
Up to 21600 kWm
Up to 4,230 kWm
Designed for stationary power plants, this reliable and robust engine can operate on a variety of liquid fuels while complying with all emission limits – with the potential for further exhaust gas treatment.
Engine Speed: 750/720 rpm
Frequency: 50/60 Hz
Up to 4,230 kWm
Up to 2,970 kWm
This turbocharged, four-stroke diesel engine is known around the world for its reliability and durability.
Engine Speed: 750/720 rpm
Frequency: 50/60 Hz
Up to 2,970 kWm
Up to 1,980 kWm
The turbocharged MAN 21/31S four-stroke engine is easy to install, extremely reliable and produces low emissions.
Engine Speed: 1,000/900 rpm
Frequency: 50/60 Hz
Up to 1,980 kWm
Dual fuel engines: Deliver high performance, efficiency and versatility
Making the most of all fuel sources
MAN Energy Solutions designs dual fuel engines to achieve the same high performance and efficiency – whichever fuel may be available.
The main advantage of dual fuel technology is fuel flexibility. This makes it possible to take advantage of the low cost and superior environmental benefits offered by gas. If the supply of gas fuel is interrupted, the engine can continue operating using liquid fuel. In addition to natural gas, our dual fuel engines can also run on liquid biofuel or distillates like marine diesel oil (MDO), marine gas oil (MGO), crude oil and heavy fuel oil (HFO). Dual fuel engines from MAN Energy Solutions are known for their reliability, efficiency, performance and the ability to switch between fuel sources. And if you already have one of our liquid fuel engines, it’s easy to upgrade to dual fuel capability to meet changing needs.
Up to 20,700 kWm
This dual fuel engine converts diesel or natural gas efficiently, and can switch from one fuel to another without any fluctuations in speed or output. It’s also possible to easily upgrade our MAN 51/60 engine to dual fuel capability if necessary. Also available with two-stage turbocharging.
Engine Speed: 500/514 rpm
Frequency: 50/60 Hz
Up to 20,700 kWm
Up to 1,800 kWm
Based on the MAN 28/32H workhorse, the MAN 28/32S DF can switch effortlessly from diesel fuel to gas and vice versa.
Engine Speed: 720/750 rpm
Frequency: 60/50 Hz
Up to 1,800 kWm
Up to 1,200 kWm
The 23/30S DF is designed after the proven classic 23/30H genset. Impressively powerful and completely reliable, it is cost-effective and also available as a retrofit option.
Engine Speed: 720/750/900 rpm
Frequency: 60/50/60 Hz
Up to 1,200 kWm
Reliable and future-proof power combined with versatility
The MAN 51/60 and 51/60TS engines are designed to deliver exceptional performance and reliability for stationary power generation. They are optimized for high ambient temperatures and altitude, making them ideal for a wide range of applications. Additionally, the engines are capable of running on MDO, MGO, HFO and various biofuels, providing high versatility in fuel choice and making them future proof. Both series offer excellent fuel efficiency, ensuring cost effective operation. The engines can be easily converted to dual-fuel (DF) and gas operation, offering high flexibility. While they meet all emissions requirements alone or with additional technologies, exhaust gas after treatment technologies are also offered to make them even cleaner. Designed for extended maintenance intervals, they reduce downtime and operating costs.
The MAN 51/60 series consists of L type engines with 6 and 9 cylinders and V type engines with 12 and 18 cylinders.
| 6L | 9L | 12V | 18V | |
| Frequency [Hz] | 50/ 60 | 50/ 60 | 50/ 60 | 50/ 60 |
| Speed [rpm] | 500/ 514 | 500/ 514 | 500/ 514 | 500/ 514 |
| Output [kWm] | 6,300 | 9,450 | 12,600 | 18,900 |
The MAN 51/60TS series consists of 18 cylinder V type engines and is available in three different output options. All versions are two stage turbocharged.
| 18V | 18V | 18V | |
| Frequency [Hz] | 50/ 60 | 50/ 60 | 50/ 60 |
| Speed [rpm] | 500/ 514 | 500/ 514 | 500/ 514 |
| Output [kWm] | 18.900 | 19.800 | 21.600 |
Insensitive to ambient conditions with high performance
The MAN 51/60DF engines are designed for high reliability and exceptional performance in stationary power generation. They are optimized for high ambient temperatures and altitude making them ideal for a wide range of applications. These versatile engines support different fuel variants, allowing flexible operation according to specific needs. If one of the liquid fuel engines has already been purchased, it’s easy to upgrade them to dual fuel capability to meet changing needs. They offer the ability to start and stop in gas mode, increasing operating efficiency. Available in high efficiency and high power versions, the MAN 51/60DF engines ensure optimum performance in a wide range of applications. The engines are designed to be clean and their flexibility is further demonstrated by their full stand-by capability in both gas and liquid fuel operation.
The MAN 51/60DF series consists of L type engines with 6 cylinders and V type engines with 12 and 18 cylinders. They are available in high power (HP) and high efficiency (HE) versions.
| 6L | 6L | 12V | 12V | 18V | 18V | |
| Operation Mode | HE | HP | HE | HP | HE | HP |
| Frequency [Hz] | 50/ 60 | 50/ 60 | 50/ 60 | 50/ 60 | 50/ 60 | 50/ 60 |
| Speed [rpm] | 500/ 514 | 500/ 514 | 500/ 514 | 500/ 514 | 500/ 514 | 500/ 514 |
| Output [kWm] | 6.300 | 6.900 | 12.600 | 13.800 | 18.900 | 20.700 |
High efficiency and power density for every purpose
The MAN gas engines are designed to provide fast and reliable power. They set new standards in stationary power generation with their high overall efficiency in combined heat and power (CHP) mode as well as single cycle operation. The engines have a high electrical efficiency, ensuring maximum energy output and cost effectiveness. Of course they are compatible with a wide range of fuel types, including natural gas, synthetic natural gas and biogas. They are also future-proof, with the ability to blend up to 25% hydrogen with e- or natural gas, supporting the transition to cleaner energy sources.
The MAN 35/44G series includes 20 cylinder V type engines, perfect for CHP applications.
| 20V | |
| Frequency [Hz] | 50/60 |
| Speed [rpm] | 750/ 720 |
| Output [kWm] | 10.600/10.200 |
The MAN 35/44GTS series consists of 2 V type engines with 12 and 18 cylinders, perfect for CHP applications. It is also two stage turbocharged.
| 12V | 20V | |
| Frequency [Hz] | 50/ 60 | 50/ 60 |
| Speed [rpm] | 750/ 720 | 750/ 720 |
| Output [kWm] | 7.680/7.368 | 12.800/12.280 |
The MAN 51/60G series consists of 18 cylinder V type engines and includes a high power (HP) and high efficiency (HE) version.
| 18V | 18V | |
| Operation Mode | HE | HP |
| Frequency [Hz] | 50/ 60 | 50/ 60 |
| Speed [rpm] | 500/ 514 | 500/ 514 |
| Output [kWm] | 18.900 | 20.700 |
The MAN 51/60GTS series includes 18 cylinder V type engines and includes a high power (HP) and high efficiency (HE) version. It is also two stage turbocharged.
| 18V | 18V | |
| Operation Mode | HE | HP |
| Frequency [Hz] | 50/ 60 | 50/ 60 |
| Speed [rpm] | 500/ 514 | 500/ 514 |
| Output [kWm] | 18.900 | 20.700 |
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