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5L21/31DF

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​‌‌⁠‌‍‍‌​​​⁠‍‍‌‌
925 kWPower
5Cylinders
210 mmBore
310 mmStroke

Designed to minimize downtime and ensure reliable performance, the 5L21/31DF by MAN Energy Solutions is a robust engine that delivers exceptional power in various maritime applications. With a rated output of 1000 kW, this engine is built to meet the demanding requirements of modern shipping operations. Its durable construction and efficient design make it an ideal choice for vessels that require consistent and reliable power. The 5L21/31DF is engineered with advanced technology to optimize fuel consumption and reduce operational costs, ensuring that your vessel operates at peak efficiency. This engine’s performance is not only powerful but also dependable, making it a trusted solution for fleet operators who demand the highest standards of reliability and maintenance. Whether powering commercial ships or specialized marine vessels, the 5L21/31DF by MAN Energy Solutions stands out as a reliable and efficient choice, providing the power needed to keep your operations running smoothly.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Swept volume per cylinder10.74 L / 10.7 dm³
Compression ratio15.5:1
Maximum combustion pressure200 bar
Specific Fuel Oil Consumption (SFOC)183-192 g/kWh (genauere Werte: 183 g/kWh bei 85% Last, 180 g/kWh Part-Load optimiert, 189-192 g/kWh je nach Konfiguration)
Specific lubrication oil consumption<0.8 g/kWh
Power per cylinder220 kW
Stroke/Bore ratio1.48:1
Turbocharging systemMAN TCR constant pressure mit Jet Assist und Interkühlung
Power-to-weight ratio18.4-22.5 kg/kW
Emission complianceIMO Tier II + IMO Tier III (mit MAN SCR)
Power (kW)925
Speed (rpm)1000
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationL
📄
Download datasheet (PDF) (430 KB)
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