"> MAN Energy Solutions 12V32/44CR-GS-50Hz
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MAN Energy Solutions

12V32/44CR-GS-50Hz

The MAN 12V32/44CR-GS-50Hz is a V‑12, medium‑speed diesel engine coupled to an integrated generator set delivering up to 5 472 kW (6 840 kVA) at 50 Hz for shipboard auxiliary power.

MAN Energy Solutions 12V32/44CR-GS-50Hz
5760.0 kW
Power

Engine Specifications

12
Cylinders
320 mm
Bore
440 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

Bohrung x Hub 320 mm x 440 mm
Hubraum pro Zylinder 35,4 dm³
Leistung pro Zylinder (MCR, 750 rpm) 600 kW (L-Reihe), 560 kW (V-Reihe)
MEP (Mean Effective Pressure) 27,1 bar (Durchschnitt); L-Reihe: 29,4-29,9 bar
Mittlere Kolbengeschwindigkeit 11 m/s
Spezifischer Treibstoffverbrauch (SFOC) @ 85% MCR 172 g/kWh (L-Serie); 171 g/kWh (V-Serie)
Gewicht 6L32/44CR 39,5 Tonnen
Gewicht 10L32/44CR 58,0 Tonnen
Gewicht 12V32/44CR 70 Tonnen
Gewicht 20V32/44CR 104 Tonnen
Common Rail Druck 1600 bar
Emissionsstandards IMO Tier II (Serie); IMO Tier III mit SCR
Zylinderabstand (Twin Engine) 2500 mm (L32/44); 4000 mm (V32/44)
power kw 5760
rpm 750
fuel type HFO/MDO
configuration V
genset kw 5472
genset kva 6840
frequency hz 50

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Common failures & inspection points

Turbocharger fouling from soot deposits: fouling and blockage from carbon deposits is the main cause of turbocharger surging. Contaminat

Regular cleaning (every 200-250 operating hours): water wash (routine), dry cleaning (stubborn deposits), chemical cleaning (overhaul with OEM-approved agents)

Cylinder head cover oil leaks: gasket wear (approx. 70% of all failures) due to embrittlement after approx. 5 years of operation. Also misalignment of cover (3 m

Visual inspection for oil stains around cylinder head; check for correct assembly and gasket aging; check oil level (overfill increases pressure)

Fuel injection system common rail: injectors can exhibit wear, coking and O-ring failure under high pressure load (1600 bar). Single solenoid ve

Inspectors should check for fuel leaks around injection lines; periodic injector testing and pressure testing recommended; overhaul per operating instructions

Connecting rod bearing wear and scuffing: insufficient lubrication under high pressure can lead to adhesive wear and microscopic welding. Excessive

Visual inspection for scratches, discoloration, embrittlement at accessible bearing points; oil pressure monitoring; inspections per service intervals

Cylinder liner and piston wear: wear is normally operational; critical are cold corrosion (when operating temperature not sufficiently reached) and the

Periodic cylinder cavitation testing; inspections during cooler operating phases; thermal monitoring of exhaust gas temperatures

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #124530 · ✓ still in production