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6LM46DF

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​⁠​​​‌‌‍‌‍‌‌‍‌​⁠
3,960 kWPower
6Cylinders
460 mmBore
610 mmStroke

The MaK 6LM46DF is a six‑cylinder, medium‑speed (≈600 rpm) dual‑fuel marine engine delivering up to 3 960 kW, capable of running on LNG or conventional HFO/Marine Diesel Oil with integrated condition monitoring.

Specifications

Technical data.reference — unverified

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Displacement per cylinder101.3 liters
Power per cylinder900 kW/cylinder at 500-514 rpm
Bmep21.3/20.7 bar
Fuel consumption (diesel mode)186 g/kWh
Fuel injection systemCommon-Rail-Ignition fuel oil system with cylinder selective gas injection
Turbocharged charge air cooledYes
Four-stroke non-reversibleYes
IMO complianceIMO Tier II in diesel mode; IMO III in gas mode
Methane slip (gas mode)Minimal (stated as feature; specific values not publicly disclosed)
Power (kW)3960
Speed (rpm)600
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationL
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