"> MAN Energy Solutions 6L32/40-GS-50Hz
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MAN Energy Solutions

6L32/40-GS-50Hz

The MAN 6L32/40‑GS‑50Hz is a medium‑speed (720/750 rpm) six‑cylinder, four‑stroke diesel engine coupled to a 2 565 kW generator set, delivering 3 206 kVA at 50 Hz for shipboard auxiliary power.

MAN Energy Solutions 6L32/40-GS-50Hz
2700.0 kW
Power

Engine Specifications

6
Cylinders
320 mm
Bore
400 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

Cylinder displacement 32 L/cylinder
Power per cylinder 500 kW/cyl
Mean Effective Pressure (MEP) 25.9 bar (720 rpm) / 24.9 bar (750 rpm)
Mean piston speed 9.6 m/s (720 rpm)
Specific fuel oil consumption (100% MCR) 186 g/kWh
Specific fuel oil consumption (85% load) 183 g/kWh
Lube oil consumption 0.5 g/kWh
Dry mass (6L32/40) 38 tonnes
Dry mass (8L32/40) 47 tonnes
Dry mass (12V32/40) 61 tonnes
Dry mass (18V32/40) 85 tonnes
Compression ratio 4.5
Turbocharging Two-stage intercooling with advanced turbocharger
Scavenge system Two-stage charge air cooler (HT and LT circuits)
Engine type Four-stroke turbocharged Diesel, non-reversible (propulsion models)
power kw 2700
rpm 750
fuel type HFO/MDO
configuration L
genset kw 2565
genset kva 3206
frequency hz 50

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Common failures & inspection points

Cylinder liner wear - formation of wear ridge at top of liner, potential piston ring breakage during overhaul if ridge not removed

Measure liner bore diameter at top, middle, and bottom; remove wear ridges before new ring installation

Piston ring sticking from combustion residue and oil deposit accumulation

Monitor blow-by, perform visual inspection during overhaul, check ring groove deposits

Scavenge air cooler fouling (air-side and water-side) leading to increased air pressure drop and higher scavenge air temperature

Monitor pressure drop across cooler, measure temperature difference between inlet and outlet cooling water, visually inspect cooler fins

Scavenge space fire risk from soot, coke, and unburned fuel accumulation at slow steaming operation

Frequent scavenge space inspection during low-load operation, drain cooler water frequently, check flap valve movement

Turbocharger bearing lubrication failure and piston ring seal degradation in turbo compressor (high-speed rotation relative to main engine)

Monitor turbo discharge temperature, check compressor inlet air filter condition, inspect bearing play

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

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Equipment Model #124504 · ✓ still in production