"> WinGD 5X62DF-M2
OceanSphere
Engines
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WinGD

5X62DF-M2

The WinGD 5X62DF-M2 is a five‑cylinder inline two‑stroke main engine that runs on methanol or marine gas oil (dual‑fuel) and delivers up to roughly 12 MW with Tier III emissions compliance in gas mode.

WinGD 5X62DF-M2
12000.0 kW
Power

Engine Specifications

5
Cylinders
620 mm
Bore
2658 mm
Stroke

Components & Design

Component data being added…

Technical Data

Bore diameter 620 mm (verified: WinGD official specs)
Max power per cylinder (S2.0 @108 rpm) 2,110 kW/cyl (WinGD X62DF-S2.0 product page)
Max power per cylinder (2.1 @103 rpm) ~2,385 kW/cyl (derived from 8-cyl config 19,080 kW)
SFOC diesel mode (with VCR option) 165.8-167.8 g/kWh (WinGD X62DF-2.1 page)
Fuel consumption reduction (diesel VCR) up to 5% (WinGD X62DF-2.1 specs)
Fuel consumption reduction (gas mode) up to 3% energy (iCER technology)
Methane slip reduction up to 50% (iCER technology)
Emissions standard IMO Tier III without SCR in gas mode (X62DF-2.1)
Stroke/Bore ratio (standard) L/D = 4.29
Injection system Common-rail + Intelligent Control by Exhaust Recycling (iCER)
Compression ratio (with VCR option) Dynamically variable per fuel type and load
configuration inline
rpm 95
fuel type Methanol/MGO (dual-fuel)
technology X-DF-M Methanol Dual-Fuel
displacement l per cyl 802.5

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Common failures & inspection points

Fuel valve carbon deposits / fuel system blockages in low-load multi-fuel operation

Inspect fuel valve nozzle spray pattern during top-overhaul; monitor differential pressure across fuel filter; verify fuel heating system temperature compliance

Piston crown thermal cracking and top-land spalling under extreme load or fuel quality variations

Measure piston crown surface condition using borescope; check for micro-cracks in top land; examine combustion bowl geometry; compare cylinder-to-cylinder pressure readings

Cylinder liner scuffing/scoring in dust-contaminated conditions or with inadequate air filtration

Perform liner diameter measurement service at each overhaul; document wear rate trending; inspect piston rings for abnormal wear patterns; check air inlet filter condition

Turbocharger surge and cavitation erosion in unsteady loading (e.g., dynamic positioning vessels)

Monitor turbocharger bearing temperatures during mode transitions (gas-to-diesel); inspect turbocharger for cavitation pitting on impeller; verify surge line compliance in operational envelope

Fuel gas supply system pressure regulation instability (iGPR unit hysteresis) under rapid load changes

Perform fuel gas system pressure step-response test during commissioning; verify regulator response time <500ms per specification; conduct annual gas line tightness test with ultrasonic detection

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #67426 · ✓ still in production