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HiMSEN
8LH35/40-GS-60Hz
The HiMSEN 8LH35/40-GS-60Hz is an 8‑cylinder medium‑speed auxiliary engine coupled to a generator set, delivering up to 3 876 kW (4 845 kVA) at 60 Hz with dual‑fuel capability (diesel/HFO and LNG).
4080.0 kW
Power
Engine Specifications
8
Cylinders
350 mm
Bore
400 mm
Stroke
4-stroke
Stroke Type
Components & Design
Component data being added…
Technical Data
Bore/Stroke (mm)
350/400
Power per Cylinder @ 720 rpm
480 kW
Mean Effective Pressure @ 720 rpm
23.1 bar
Mean Effective Pressure @ 750 rpm
22.2 bar
Max. Cylinder Pressure
190 bar
Compression Ratio (H35DF)
12.5:1
Specific Fuel Oil Consumption (H35DF diesel mode @ 100% MCR)
185.0 g/kWh
Dry Weight (6H35DF example)
34.7 tons
Turbocharger Scavenge Pressure
3.8 bar
Displacement Range
231–770 liters
power kw
4080
rpm
900
fuel type
HFO/MDO
configuration
L
genset kw
3876
genset kva
4845
frequency hz
60
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Common failures & inspection points
Excessive valve clearance causes high-temperature erosion at valve seats, particularly exhaust valves; requires periodic adjustment per maintenance schedule
Fuel injector nozzle carbon deposits accumulation when operating on high-sulfur fuels; requires periodic cleaning and proper lubricating oil selection per MARPO
Cylinder liner scuffing due to oil film breakdown between piston rings and liner wall; inspection via scavenge ports and scrape-down oil analysis required
Crankshaft bearing wear accumulation during service intervals >16,000 hours (marine auxiliary); requires crankshaft deflection measurement and bearing clearance
Cylinder cover gasket leakage and gas sealing failures; proper bolt torque maintenance and periodic gasket replacement required per overhaul procedures
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #124741
· ✓ still in production