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Library› Engine Room› Main Engines (4-Stroke)› Main Engine 4-Stroke› HiMSEN 7L H25/33P
HiMSEN

7L H25/33P

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

Technical data from manufacturer or class sources · not yet verified by a person
3,360 kWPower
7Cylinders
250 mmBore
330 mmStroke
900 rpmMCR RPM

The HiMSEN 7L H25/33P is a medium‑speed, four‑stroke marine diesel engine delivering up to ~2 MW (≈2 700 kW max) with a compact 7‑cylinder layout, designed for flexible fuel use (MDO/MGO) and IMO Tier II compliance.

Specifications

Technical data.reference — unverified

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Swept volume per cylinder16.2 dm³
Compression ratio17:1
Max combustion pressure200 bar
SFOC (100% MCR)181.0 g/kWh (diesel operation)
Oil consumption0.6 g/kWh
6H25/33 dry weight20.2 metric tons
7H25/33 dry weight22.5 metric tons
8H25/33 dry weight24.1 metric tons
6H25/33M rated output1,440-1,596 kW (depending on RPM)
7H25/33M rated output1,680-1,995 kW (depending on RPM)
8H25/33M rated output2,320 kW at 900 RPM
9H25/33M rated output2,565 kW at 900/1000 RPM; 2,700 kW max
Mean piston speed range7.9-11.0 m/s
Mean effective pressure22.2-27.2 bar (varies by configuration)
Emissions complianceIMO Tier II, Tier III (with SCR - Selective Catalytic Reduction)
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