6EL44
The Hanshin 6EL44 is a medium‑speed, six‑cylinder 2‑stroke diesel main engine delivering about 5,220 kW at 500 rpm, noted for its compact size and relatively high rpm among 2‑stroke designs.
Engine Specifications
Inspector Detail
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Designation decoded
6 for 6 cylinders, EL for the Hanshin EL series, 44 for 440 mm bore. Specs: stroke 660 mm. S/B 1.5.
Background
The 6EL44, with a 440 mm bore and 660 mm stroke, exceeds the typical EL size and approaches the power class of small MAN/WinGD engines. These larger EL models are used on medium-sized merchant ships and larger coastal freighters.
Calculated metrics
Inspector checklist
- Cylinder liner: 440 mm × 6, 660 mm stroke, S/B 1.5
- Piston rings: Hanshin configuration
- Crosshead bearing: significant forces at 440 mm bore
- Camshaft: 6-cyl
- Fuel pumps × 6: larger plungers than standard EL
- Valve clearance
- Injection nozzles × 6
- Fuel: HFO likely — separator plant and treatment
- Fuel filtration
- Stuffing box × 6: drainage
- Exhaust valve × 6
- Turbocharger: 1× — no redundancy
- Scavenge air cooler
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Exhaust gas temperature after cylinder | 335-415 °C at 85% MCR | Spread >15 °C |
| Scavenge Air Pressure | 1.5-2.5 bar abs at MCR | Turbocharger |
| Engine speed | 150-260 rpm | Load/governor |
Common Failure Modes
Expert tips
- 💡 6EL44: HFO operation is likely at 440 mm bore — a full fuel treatment plant (separator, heater, filter) is required
- 💡 Hanshin above 400 mm: a niche product — consider alternative engine choices (MAN S35, WinGD X35) for newbuilds
Related components
Classification & regulatory
IMO Tier II. MARPOL Annex VI.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Other Cylinder Configurations 28
Components & Design
Component data being added…
Technical Data
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