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WinGD

X62DF

Name: WinGD X62DF
Brand: WinGD

The WinGD X62DF is a high‑power, low‑speed 2‑stroke marine main engine capable of running on LNG and conventional oil fuels with variable compression ratio technology.

Per Hersteller-Datenblatt

Capacity

LNG/HFO/MDO/MGO

Medium

Engine Specifications

620 mm

Bore

2-stroke

Stroke Type

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

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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.

Service & Maintenance

Gas admission and safety systems require scheduled leak and function tests. Monitor methane slip-related combustion condition and cylinder lubrication settings.

Suppliers & Spare Parts

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Replacement Parts

Keep gas admission valves, pilot injectors, sealing kits, piston ring packs, exhaust valve units and electronic control spares.

Manuals

Equipment Model #36760 · ✓ still in production