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WinGD
5X35DF
The WinGD 5X35DF is a medium-speed, 5‑cylinder, two‑stroke marine main engine delivering up to 4,200 kW at 167 rpm, featuring low‑pressure (~16 bar) dual‑fuel operation with lean‑burn Otto‑cycle gas mode and diesel micro‑pilot ignition.
4200.0 kW
Power
80,000 kg
Weight
Engine Specifications
5
Cylinders
350 mm
Bore
1550 mm
Stroke
4,200 kW
MCR Power
167.0 rpm
MCR RPM
20.0 bar
MEP
170.0 g/kWh
SFC
2-stroke
Stroke Type
Family: WIN-GD X-DF
· Tier: IMO Tier III (gas mode)
· Fuel: HFO, VLSFO, MDO, LNG
Other Cylinder Configurations 33
5X40DF
5 cyl
· 5,300 kW
5X52DF
5 cyl
· 9,400 kW
5X62DF
5 cyl
· 13,400 kW
5X72DF
5 cyl
· 18,300 kW
5X82-DF
5 cyl
· 23,050 kW
5X92DF
5 cyl
· 31,950 kW
6X35-DF
6 cyl
· 5,040 kW
6X40DF
6 cyl
· 6,360 kW
6X52DF
6 cyl
· 11,280 kW
6X62DF
6 cyl
· 16,080 kW
6X72DF
6 cyl
· 21,960 kW
6X82-DF
6 cyl
· 27,660 kW
6X92DF
6 cyl
· 38,340 kW
7X35-DF
7 cyl
· 5,880 kW
7X40DF
7 cyl
· 7,420 kW
7X52DF
7 cyl
· 13,160 kW
7X62DF
7 cyl
· 18,760 kW
7X72DF
7 cyl
· 25,620 kW
7X82DF
7 cyl
· 37,660 kW
7X92DF
7 cyl
· 44,730 kW
8X35-DF
8 cyl
· 6,720 kW
8X40DF
8 cyl
· 8,480 kW
8X52DF
8 cyl
· 15,040 kW
8X62DF
8 cyl
· 21,440 kW
8X72DF
8 cyl
· 29,280 kW
8X82-DF
8 cyl
· 36,880 kW
8X92DF
8 cyl
· 51,120 kW
9X40DF
9 cyl
· 9,540 kW
9X82-DF
9 cyl
· 41,490 kW
9X92DF
9 cyl
· 57,510 kW
10X92DF
10 cyl
· 63,900 kW
11X92DF
11 cyl
· 70,290 kW
12X92DF
12 cyl
· 76,680 kW
Components & Design
Alpha Lubricator Control
WIN-GD / Hans Jensen Lubricators
WIN-GD Pulse Lubrication System
Pulse lubrication for accurate CLO timing. Feed rate adjustable 0.5-1.0 g/kWh. Lower feed on gas mode.
Lead time: 6 wk
20.0 kg
Common Rail Unit (RT-flex / X-DF)
WIN-GD / Winterthur
WIN-GD Common Rail Unit
Rail pressure ~1000 bar (fuel), ~200 bar (servo oil). Monitor rail pressure stability.
Lead time: 16 wk
1800.0 kg
Crankcase Oil Mist Detector
GEA / Schaller Automation
GEA Westfalia OMD / Schaller VN215+
Same as diesel — SOLAS mandatory regardless of fuel. Test weekly.
Lead time: 2 wk
8.0 kg
Cylinder Liner
WIN-GD
WIN-GD X-DF Cylinder Liner
Gas ports machined into liner — inspect for erosion. Wear rate significantly lower in gas mode.
Lead time: 16 wk
3200.0 kg
Dual-Fuel System (Gas Mode)
WIN-GD
WIN-GD X-DF Gas Admission System
Gas admission at 10-16 bar via scavenge ports. Pre-chamber with diesel pilot. Monitor methane slip.
Lead time: 12 wk
350.0 kg
Engine Control Unit (ECU / ECS)
WIN-GD / ABB
WIN-GD WiDE Engine Control System
WiDE = Wartsila Intelligent Diesel Engine. Dual-redundant. iCER optimization requires latest firmware.
Lead time: 8 wk
50.0 kg
Exhaust Valve (& Valve Seat)
WIN-GD
WIN-GD Exhaust Valve (X-DF)
Gas mode extends valve life significantly (less hot corrosion). Overhaul at 16,000 hrs (gas-only: 24,000 hrs).
Lead time: 10 wk
300.0 kg
FGSS (Fuel Gas Supply System - LNG/Methanol)
TGE Marine / Wartsila Gas Solutions
FGSS LNG Supply Module (ME-GI type HP / X-DF type LP)
LP-FGSS for X-DF (6-16 bar). Mandatory gas detection in duct space. Emergency shutdown drill monthly.
Lead time: 26 wk
Fuel Valve (Injector)
WIN-GD
WIN-GD X-DF Fuel Valve (diesel + pilot)
Pilot injector critical for gas mode ignition. Inspect pilot nozzle at 4,000 hrs. Main valve at 8,000 hrs.
Lead time: 6 wk
75.0 kg
Governor (Electronic/Woodward)
Woodward
Woodward 723PLUS / WIN-GD Integrated Governor
Integrated with WiDE. Gas/diesel mode switching requires governor parameter set change.
Lead time: 4 wk
15.0 kg
Hydraulic Power Supply (HPS)
WIN-GD
WIN-GD Flex HPS (Common Rail Servo Oil)
Servo oil system at ~200 bar. Filter changes every 4,000 hrs. Use approved servo oil only.
Lead time: 14 wk
2500.0 kg
Piston Crown
WIN-GD
WIN-GD X-DF Piston Crown
Gas mode reduces thermal loading. Inspect at 16,000-24,000 hrs. Extended intervals possible in gas-only service.
Lead time: 14 wk
1700.0 kg
SCR (Selective Catalytic Reduction)
HUG Engineering / Yara Marine
WIN-GD SCR Reactor (for diesel mode Tier III)
Only needed for Tier III in diesel mode (gas mode is inherently Tier III). SCR bypass in gas mode.
Lead time: 20 wk
12000.0 kg
Scavenge Air Cooler
WIN-GD / Alfa Laval
WIN-GD SAC (Plate/Shell-and-tube)
Cleaner in gas mode — extended cleaning intervals. Monitor charge air temperature after cooler.
Lead time: 14 wk
5000.0 kg
Sensors & Transmitters
WIN-GD / Danfoss / ABB
WIN-GD Sensor Suite (pressure, temp, speed, knock)
Knock detection sensors critical for X-DF gas mode — prevents detonation. Calibrate every 4,000 hrs.
Lead time: 2 wk
2.0 kg
Turbocharger Unit (ABB/MHI/Napier)
ABB Turbocharging
ABB A265-L Turbocharger
Gas mode significantly reduces fouling. Extended TC overhaul interval to 16,000-24,000 hrs in gas mode.
Lead time: 16 wk
8500.0 kg
Technical Data
Bore
X35-B: 350 mm; X40-B: 400 mm
Stroke
X35-B: 1550 mm; X40-B: 1770 mm
Stroke/Bore Ratio
4.43 (both models)
Power Range
X35-B: 2,450–6,960 kW; X40-B: 3,250–9,080 kW
RPM Range
X35-B: 118–167 rpm; X40-B: 104–146 rpm
Mean Effective Pressure (MEP R1)
X35-B: nicht verifizierbar; X40-B: 21 bar
SFOC (Specific Fuel Oil Consumption)
X35-B: ~175.8 g/kWh; X40-B: ~176.8 g/kWh (Tier II, Vollast)
Fuel Type
Marine Diesel (HFO/MDO) - Single-Fuel; X40DF-Variante: LNG Dual-Fuel
Fuel Injection System
Electronically Controlled Common Rail mit Zeit-gesteuerte Einspritzung
Emissions Compliance
IMO Tier II/Tier III (SCR-Nachrüstung für Tier III)
Production Status
Legacy (Produktion beendet, technische Unterstützung aktiv)
unified from engine model
True
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Common failures & inspection points
Zylinderliner-Scuffing: Lokales Verschweißen und Verschleiß zwischen Kolbenring und Linerinnenfläche verursacht durch unzureichende Schmierung oder Ölfilm-Zusam
Visuelle Inspektion des Liners auf Kratzer, Mikroschweißungen und Verfärbungen; lokale Schliff-Rauheit prüfen; bei Bedarf Liner nachhonen oder austauschen
Kolbenkrone- und Ringrillen-Verschleiß: Oberflächentragen, Verschleiß und Risse in Kolbenkrone und Ringrillen erfordern Dickenmessungen
Dickenmessgerät (z.B. Fischer Dualscope MP0) verwenden; Vergleich mit Richtwerten aus OM; Kolbenkrone auf thermische Verfärbung, Risse und Ablagerungen prüfen
Brennstoffdruck-Anomalien und Rillenleckage: Zu hohes/zu niedriges Druck im Common-Rail-System und Brennstoff-Leckage aus Einspritzleitungen
Brennstoffdruck während Betrieb prüfen (Richtwert bei R1); Brennstoffrücklauf auf Undichtheiten kontrollieren; Inspektionsleitungen an Injektoren auf Lecks überwachen
Abgastemperatur-Unregelmäßigkeiten mit erhöhter Gaskonzentration in Kolbenunterseite: Asymmetrische oder unerwartete Abgastemperaturen stromabwärts einzelner Zy
Kontinuierliche Abgastemperatur-Überwachung pro Zylinder durchführen; bei Temp.-Unterschieden >30°C Zylinderkopf-Inspektionen einleiten; Gaskonzentration im Kolben prüfen
Servo-Ölsystem-Leckage und FLV/Brennstoffleitungs-Undichtheiten: Druckverlust im Servo-Hydrauliksystem und Brennstoffleck an Fuel Line Valves
Servo-Öldrück und -Durchfluss kontrollieren; alle Brennstoffleitungen und Ventilverbindungen visuell und unter Druck prüfen; Inspektionsgläser überwachen
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
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Equipment Model #38785
· ✓ still in production
Wer liefert dieses Teil? 15 Betriebe im Verzeichnis · 13 aus Herstellerlisten
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
PROPULSION ANALYTICS
Greece
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