"> WinGD 5X62-B
OceanSphere
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WinGD

5X62-B

The WinGD 5X62‑B is a five‑cylinder, low‑speed two‑stroke main engine delivering up to 14 150 kW at ~99 rpm, featuring WiDE digital control and multi‑fuel capability (HFO/VLSFO/MDO and dual‑fuel LNG/methanol/ammonia variants).

WinGD 5X62-B
14150.0 kW
Power

Engine Specifications

5
Cylinders
620 mm
Bore
2658 mm
Stroke
14,150 kW
MCR Power
99.0 rpm
MCR RPM
2-stroke
Stroke Type
Family: WIN-GD X · Tier: IMO Tier II · Fuel: HFO, VLSFO, MDO

Inspector Detail

▸

Designation decoded

5X62-B – WinGD X-Serie, vollelektronischer 2-Takt-Kreuzkopfmotor ohne Nockenwelle. 'X62' = 620 mm Bohrung. '-B' = verbesserte Generation (optimierte Verbrennung, reduzierter SFOC, verbesserte Zylindergeometrie). 5 Zylinder. Bohrung 620 mm, Hub 2658 mm.

Background

The X62-B is the further developed version of the X62 with improved combustion efficiency. The B variant offers optimized piston/cylinder geometry, improved injection pattern and extended delta tuning options. Still UNIC-controlled with common rail injection. As a 5-cylinder configuration, the same torsional vibration considerations apply as for the X62. The B version can achieve lower SFOC values while simultaneously meeting stricter emission limits.

Calculated metrics

Stroke To Bore Ratio
4.29

Inspector checklist

Logbook reference values

Parameter Expected Deviation means
Raildruck (HFO/VLSFO) 800–1000 bar (lastabhängig) Deviation: pump/accumulator fault or injector leakage. More tightly tolerated in B version.
Auslassventil-Leckölmenge < Herstellergrenzwert (B-Version ggf. niedrigere Grenzwerte) Steigende Tendenz: Spindelverschleiß, Sitzring-Erosion.
Zylinderauslass-Temperatur (Spreizung) Max. ±12–15 °C vom Mittelwert Deviation: combustion uneven, check injector or exhaust valve.
Cylinder liner wear 0.02–0.08 mm/1000 Bh (B-Version tendenziell niedriger) Überhöht: CLO-Rate, Kolbenringe, Brennstoffqualität prüfen.
SFOC (spez. Kraftstoffverbrauch) Gemäß B-Testbed-Protokoll (typ. 2–4% besser als Basis-X62) Deterioration: injector degradation, turbocharger fouling or incorrect Delta Tuning setting.
Barred Speed Range Einhaltung Gemäß Torsionsschwingungsgutachten (5-Zyl.) Nichteinhaltung: Risiko von Kurbelwellen-/Kupplungsschäden.

Common Failure Modes

Injector wear (B-specific nozzles)
Symptoms: ['Erhöhter SFOC', 'Abgastemperatur-Asymmetrie', 'Smoke development at part load']
Causes: Kavitationsverschleiß an optimierten Düsenlöchern, Brennstoff-Kontamination, Überschrittenes Wartungsintervall
Preventive: B-spezifische Injektorüberholungsintervalle einhalten. Nur Original-WinGD-Ersatzteile für B-Düsen verwenden.
Auslassventil-Korrosion
Symptoms: ['Kompressionsverlust', 'Steigende Leckölmenge', 'Abgastemperatur-Anstieg']
Causes: Hot corrosion due to fuel contamination, Fehlerhafte Ventil-Rotation, Thermische Überlastung
Preventive: Regelmäßige Ventilinspektion. Rotocap-Funktion prüfen. Brennstoff-Behandlungsanlage in einwandfreiem Zustand halten.
UNIC-Kommunikationsstörung
Symptoms: ['Zylinderabschaltung', 'Leistungsreduktion', 'Alarms on bridge and in engine room']
Causes: Cable breakage due to vibration, Feuchtigkeitseintritt in Steckverbinder, Firmware-Inkompatibilität
Preventive: Check cabling and connectors at every major overhaul. Software updates according to WinGD Service Letters.
Torsionsschwingungsschäden (5-Zylinder)
Symptoms: ['Abnormale Vibrationen', 'Risse im Schwingungsdämpfer', 'Kupplungsverschleiß']
Causes: Verweilen im Barred Speed Range, Defekter Schwingungsdämpfer, Mangelhafte Überwachung
Preventive: Barred-Speed-Range-Durchfahrt zügig durchführen. Schwingungsdämpfer turnusmäßig prüfen.

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Related components

T u r b o c h a r g e r ( A B B / M H I ) , c h a r g e a i r c o o l e r , C o m m o n R a i l h i g h - p r e s s u r e p u m p s a n d a c c u m u l a t o r s , B - s p e c i f i c i n j e c t o r n o z z l e s , A l p h a L u b r i c a t o r , t o r s i o n a l v i b r a t i o n d a m p e r , h y d r a u l i c o i l s u p p l y ( e x h a u s t v a l v e s ) , U N I C F C M m o d u l e s , e x h a u s t a f t e r t r e a t m e n t ( S C R / E G R i f f i t t e d )

Classification & regulatory

IMO Tier II standard. Tier III in ECAs via iCER/SCR/Dual-Fuel. B version typically with improved EEDI/EEXI value. CII rating: document Delta Tuning and EPL. Torsional vibration report according to class requirements.

Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.

Other Cylinder Configurations 50

5X35
5 cyl · 4,450 kW
5X35-B
5 cyl · 4,700 kW
5X40
5 cyl · 5,600 kW
5X40-B
5 cyl · 5,900 kW
5X52
5 cyl · 9,400 kW
5X52-B
5 cyl · 9,950 kW
5X62
5 cyl · 13,400 kW
5X72
5 cyl · 18,300 kW
5X72-B
5 cyl · 19,350 kW
5X82
5 cyl · 24,250 kW
5X82-B
5 cyl · 25,600 kW
5X92
5 cyl · 31,950 kW
5X92-B
5 cyl · 33,700 kW
6X35
6 cyl · 5,340 kW
6X35-B
6 cyl · 5,640 kW
6X40
6 cyl · 6,720 kW
6X40-B
6 cyl · 7,080 kW
6X52
6 cyl · 11,280 kW
6X52-B
6 cyl · 11,940 kW
6X62
6 cyl · 16,080 kW
6X62-B
6 cyl · 16,980 kW
6X72
6 cyl · 21,960 kW
6X72-B
6 cyl · 23,220 kW
6X82
6 cyl · 32,280 kW
6X82-B
6 cyl · 30,720 kW
6X92
6 cyl · 38,340 kW
6X92-B
6 cyl · 40,440 kW
7X35
7 cyl · 6,230 kW
7X35-B
7 cyl · 6,580 kW
7X40
7 cyl · 7,840 kW
7X40-B
7 cyl · 8,260 kW
7X52
7 cyl · 13,160 kW
7X52-B
7 cyl · 13,930 kW
7X62
7 cyl · 18,760 kW
7X62-B
7 cyl · 19,810 kW
7X72
7 cyl · 25,620 kW
7X72-B
7 cyl · 27,090 kW
7X82
7 cyl · 33,950 kW
7X82-B
7 cyl · 35,840 kW
7X92
7 cyl · 44,730 kW
7X92-B
7 cyl · 47,180 kW
8X35
8 cyl · 7,120 kW
8X35-B
8 cyl · 7,520 kW
8X40
8 cyl · 8,960 kW
8X40-B
8 cyl · 9,440 kW
8X52
8 cyl · 15,040 kW
8X52-B
8 cyl · 15,920 kW
8X62
8 cyl · 21,440 kW
8X62-B
8 cyl · 22,640 kW
8X72
8 cyl · 29,280 kW

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
unified from engine model True

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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 #38724 · ✓ still in production

Wer liefert dieses Teil? 14 Betriebe im Verzeichnis · 13 aus Herstellerlisten

ウインターツールガスアンドディーゼルジャパン（株）
Japan
✓ autorisiert
CSSC Power (Group) Co., Ltd.
Shanghai, China
Alfa Marine Solutions
Poland
Allmind
Germany
CSSC Marine Service Co., Ltd. (CMS)
Shanghai, China
DCS POWER PTE. LTD.
Singapore, Singapore
DIESELMECH GROUP
Singapore, Singapore
EIKEN MARITIME AS
Stokke, Norway
GET STC
Greece
MTCS — Marine 2-Stroke Consultant & Service GmbH
Hamburg, Germany
Mitsui Engineering & Shipbuild
Japan
PROPULSION ANALYTICS
Greece
Weitere aus Hersteller- und Marktplatzverzeichnissen:
Mitsui E & S DU Co., Ltd. · JapanAlfa Marine Ltd. - We Support Your Fleet! · PolandCSSC Marine Service Co., Ltd. · ChinaDesin Marine & Industry Services Ltd. · ChinaEASYMAR LTD · TurkeyHD Hyundai Global Service Europe B.V. · NetherlandsHD Hyundai Marine Solution Singapore PTE LTD. · SingaporeHongkong HY-Shipping Marine Service Limited · ChinaPK OEM Parts B.V. · NetherlandsPioneer Ship Chandler · PakistanSEA Clean AS · NorwaySUPERMAR MARINE SERVICES CHINA LTD · China
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