M 25 E

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M 25 E
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M 25 E

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Overview

The new M 25 E has been designed to completely meet the ultimate customer requirements, providing the lowest cost of operation while maintaining the highest uptime in the industry. Since one engine standard typically does not fit all applications, different M 25 E configurations will be available to support various application-specific requirements. Based on the proven M 25 C, all versions have been extensively optimized for best fuel consumption and load acceptance, leading reliability and durability, and efficient Selective Catalytic Reduction (SCR) operation. The service and maintenance-friendly design, remote condition monitoring and diagnostic capabilities, as well as our unmatched global product support, respond to the industry's desire to lower operational costs and down times beyond today's standards.

Features At A Glance

Emissions

For IMO III emissions the MaK M 25 E is delivered with a Scheme A factory certified SCR solution and a factory EIAPP certificate, simplifying installation and commissiong work significantly. Caterpillar's SCR technology minimizes total cost of ownership by cutting the diesel and urea expenses by offering the lowest total fluid consumption at optimized engine and SCR life time.

Performance

5% more power, Leading load response

Fuel Efficiency

A typical offshore supply vessel operator can save up to $ 250,000 per year in fuel cost.The part load efficiency of one M 25 E can save up to 40 tons of fuel per year in a variable speed application (average 60% load). Low load variable speed capability can save 50– 60 tons per year versus constant speed applications (average 20–25% load).

Safety

Unmatched reliability based on the proven MaK M 25 C so you always get home safely, even in the worst conditions.

Higher Uptime equals More Revenue

Extended times between overhauls to reduce lay-days for maintenance.

Unique Solutions

Combined with propellers designed and optimized for vessels' normal cruise speed, the part load optimized M 25 E is developed for vessels where maximum engine power or propeller thrust is only required for a fraction of the operation time. Operational cost benefits are achieved by operating propellers and engines at best points of efficiency.

Onsite Product Support and Online Monitoring

The new Monitoring Alarm and Control System (MACS) from Caterpillar provides additional functionality regarding engine control, diagnostics, and remote monitoring, including the option to extend the features to engine related systems like SCR's (Selective Catalytic Reduction) where customers have elected to reduce NOx related taxes or harbor fees.

Full Specifications Standard Equipment Optional Equipment

Product Specifications for M 25 E

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US
Metric

Power Rating

Power Range

2100-3150 kW 2100-3150 kW

Engine Specifications

Speed Range	720-750 rpm 720-750 rpm
Emissions	IMO II / IMO III with SCR IMO II / IMO III with SCR
Aspiration	Turbocharged Turbocharged
Bore	10 in 255 mm
Stroke	15.78 in 400 mm
Rotation from Flywheel End	Counterclockwise/Clockwise Counterclockwise/Clockwise
Configuration	Inline 6,8,9 Cylinder Inline 6,8,9 Cylinder
Swept Volume	1244.89 in³ 20.4 l/cyl

Dimensions & Weights

Minimum Dry Weight	46738 lb 21.2 ton (US)
Minimum Length	190.6 in 4840 mm
Maximum Length	241.3 in 6130 mm
Minimum Height	133.3 in 3386 mm
Maximum Height	152 in 3861 mm
Minimum Width	81.9 in 2080 mm
Maximum Width	87.8 in 2230 mm

M 25 E 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)

Serial link interface (MODbus / canbus)

Speed governor

Cooling System

Electrical 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 flywheel end

Fuel System

Fuel circulating pump (attached / MGO/MDO only)

Fuel indicator filter

Fuel pressure valve (attached / MGO/MDO only)

Instrumentation

Local control panel

Pressure and temperature indicator

Lube System

Dry sump

Lube oil plate cooler (separate)

Lube oil pump (engine driven)

Lube oil self-cleaning filter

Pressure regulating valve

Mounting System

High flexible coupling

Rigid mounting

Starting System

Electrical barring device

Starting air valve

General

Lifting device (rental)

Torsional Vibration Calculation (TVC)

M 25 E 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 control system

Remote indicators (start air pressure, engine speed, etc.)

Starter for electric driven pumps

24 DC UPS

Cooling System

FW/SW plate cooler

HT cooling water pump (electric driven)

LT cooling water pump (electric driven)

Sea water cooling pump (electric driven)

Steam / thermal oil cooling water preheater

Temperature control valve

Exhaust System

Silencer (with or without spark arrester)

Turbocharger at counter-flywheel side

Fuel System

Fuel oil cooler

HFO final preheater

HFO pressure regulating valve

HFO self-cleaning automatic filter

HFO supply and booster pumps (electrical driven)

HFO treatment and supply modules

HFO viscosity control device

Mixing tank

Lube System

Lube oil centrifuge

Lube oil pump (electrical driven)

Lube oil treatment and combined modules

Pre-lubricating oil pump (electrical driven)

Temperature control valve

Wet sump with dip stick

Mounting System

Flexible pipe connections

Resilient mounting

Starting System

Starting air compressor

Starting air receiver

General

Cat Propulsion Systems

Engine PTO coupling

Part load optimzation kit for constant speed engine (SFOC improvement, smoke reduction,...)

Part load optimization kit for variable speed engine (massive SFOC improvement,...)

PTO alternator

PTO shaft on counter-flywheel side

Reduction gear

Reduction gear PTO coupling

See how M 25 E compares against frequently compared products.

US
Metric

Marine Power Systems M 25 E

Power Range: 2100-3150 kW; 2100-3150 kW
Speed Range: 720-750 rpm; 720-750 rpm
Emissions: IMO II / IMO III with SCR; IMO II / IMO III with SCR

Selected Model

Marine Power Systems M 20 C

Power Range: 1020-1800 kW; 1020-1800 kW
Speed Range: 900-1000 rpm; 900-1000 rpm
Emissions: IMO II / IMO III with SCR; IMO II / IMO III with SCR

Model Details

Marine Power Systems M 25 C

Power Range: 1740-3000 kW; 1740-3000 kW
Speed Range: 720-750 rpm; 720-750 rpm
Emissions: IMO II; IMO II

Model Details

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M 25 E

Overview

Features At A Glance

Product Specifications for M 25 E

Power Rating

Engine Specifications

Dimensions & Weights

M 25 E Standard Equipment

Air Inlet System

Control System

Cooling System

Exhaust System

Fuel System

Instrumentation

Lube System

Mounting System

Starting System

General

M 25 E Optional Equipment

Air Inlet System

Control System

Cooling System

Exhaust System

Fuel System

Lube System

Mounting System

Starting System

General

See how M 25 E compares against frequently compared products.

Tools And Expert Help At Every Turn

Payment Calculator

Current Offers

Rental Options

Used Options

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