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WinGD

9W-X62

WinGD X-Series (620mm bore low-speed two-stroke dual-fuel) — Marinediesel, Bohrung 620 x Hub Standard: 2658 | Short-stroke S2.0: 2245 | Short-stroke S1.0: 2045 mm, 80-103 (Standard L/D 4.29) | 82-108 (S2.0 L/D 3.62) | 85-108 (S1.0 L/D 3.30) rpm, 5X62DF-2.1: 5,925-11,925 kW | 6X62DF-2.1: 7,110-14,310 kW | 8X62DF-2.1: 15,840-19,080 kW | 6X62DF-M-1.0: 7,950-23,200 kW | 6X62DF-S2.0: 6,675-14,770 kW | 6X62DF-S1.0: 6,925-16,880 kW. Brennstoff: Diesel/HFO (all variants) | LNG (DF standard) | Methanol (M-1.0 variant Q2 2024+) | Ammonia (A-1.0 variant Q3 2026 scheduled). Status: In Production (X62DF-2.1, X62DF-S2.0, X62DF-S1.0 active; X62DF-M-1.0 since 2024; X62DF-A-1.0 announced Q3/2026). Legacy: X62-B (replaced by X62-1.1/1.2). Verifiziert, Datenblatt verlinkt.

21780.0 kW
Power

Engine Specifications

9
Cylinders
620 mm
Bore
2658 mm
Stroke
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
power kw 21780
rpm 105
fuel type HFO/MDO
configuration L

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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 #122892 · ✓ still in production