New | M 25 E Marine Generator Set

Designed for a high power output, the M 25 E is not only the right choice for customers seeking power density and increased load response capabilities, but also for those who choose to lower operational fuel costs utilizing selected load profiles in combination with the most efficient engine speed.

Generator Set Specifications
Minimum Rating2016 kWe (2625 kVA)
Maximum Rating3024 kWe (3938 kVA)
Emissions/Fuel StrategyIMO II
Engine Specifications
Configuration6,8,9 Cylinder
Bore10 in
Stroke15.75 in
Swept Volume1244.88 in³
Generator Set Dimensions
Weight43.0 - 56.0 t (94798 - 123459 lbs)
Length7717 - 8713 mm (303.8 - 343.0 in)
Width2357 mm (92.8 in)
Height3866 - 4066 mm (152.2 - 160.1 in)

This Mak Design Principles Is Most Clearly Reflected In The Reduction Of The Number Of Components. About 40 % Of Parts Have Been Dispended. It Has Resulted In A Market Gain In Operational And A Reduction Of Operating Costs.

The Complete Diesel Generator Set Is Notable For Its Ease Of Installation, Reliable Operation, Ease Of Maintenance And Provides Good Component Accessibility.

In Addition To Many Outstanding Technical Features, The Long-Stroke M 25 E Engine Is Also Easy To Install And Provides Good Maintenance Access To All Components.

The Supply Of Complete Propulsion Systems Is A Market Requirement Which Is Becoming Increasingly Important.

System responsibility and supply from a single source, accurately matched interfaces and coordinated delivery data control

Standard Equipment

Air Inlet System
  • Air intake silencer / filter
Control System
  • Load sharing unit (for multiple engine plant only)
  • Modular Alarm Control and Protection System (MACS)
  • Speed governor
Cooling System
  • Electric cooling water preheater
  • HT cooling water pump (engine driven)
  • 2-stage charge air cooler
Exhaust System
  • Exhaust gas expansion joint
  • Exhaust gas insulated manifolds
  • Turbocharger at counter-flywheel end
Fuel System
  • Fuel circulating pump (attached / for MDO/MGO only)
  • Fuel indicator filter
  • Fuel pressure valve (fitted / for MDO/MGO only)
  • Control push buttons and lamps
  • Local control panel
  • Pressure and temperature indicator
Lube System
  • Lube oil cooler (separate)
  • Lube oil pump (engine driven)
  • Lube oil self-cleaning filter
  • Oil sump in base frame
  • Pre-lubricating oil pump (electric driven / fitted on base frame)
  • Pressure regulating valve
Mounting System
  • Flexible pipe connections
  • High flexible coupling
  • Resilient mounting
Starting System
  • Electrical barring device
  • Starting air valve
  • Engine, flexible coupling and generator mounted on a common base frame
  • Flywheel cover
  • Lifting device (rental)
  • Torsional Vibration Calculation (TVC)

Optional Equipment

Air Inlet System
  • Air inlet shut-off valve
  • Air intake transition piece
  • Expansion joint
  • Silencer / filter
Control System
  • Air injection control (for better load acceptance)
  • Electronic speed governor
  • Engine alarm system
  • Remote indicators (start air pressure, engine speed, etc.)
  • Starter for electric driven pumps
  • 24 DC UPS
Cooling System
  • CW piping for generator cooling on base frame
  • CW piping for lubricating oil cooler on base frame
  • FW/SW plate cooler
  • HT cooling water pump (electric driven)
  • HT temperature control valve fitted on base frame
  • LT cooling water pump (electric driven)
  • Sea water cooling pump (electric driven)
  • Temperature control valve
Exhaust System
  • Silencer (with spark arrester)
Fuel System
  • Fuel oil cooler
  • HFO final preheater
  • HFO pressure regulating valve
  • HFO self-cleaning automatic filter
  • HFO supply and booster pumps (electric driven)
  • HFO treatment and supply modules
  • HFO viscosity control device
  • Mixing tank
Lube System
  • Lube oil centrifuge
  • Lube oil pump (electric driven)
  • Lube oil treatment and combined modules
  • Temperature control valve
  • Temperature control valve fitted on base frame
Mounting System
  • Double resilient mounting (engine and base frame)
Starting System
  • Starting air compressor
  • Starting air receiver
  • Engine PTO coupling
  • Generator customer supply
  • Part Load Optimization Kit for constant speed engine (SFOC improvement, smoke reduction)
  • Part Load Optimization Kit for variable speed engine (massive SFOC improvement,...)
  • PRO shaft on counter-flywheel side



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