WinGD
X52DF
WinGD X52 / X52DF two-stroke marine diesel/dual-fuel — Marinediesel, Bohrung 520 x Hub 2315 (standard X52/X52DF), 2045 (X52-S2.0 / X52DF-S2.0) mm, 79-105 rpm (standard), 85-120 rpm (S2.0 variants), 80-120 rpm (X52-S2.0) rpm, 5100-14480 kW (5-8 cyl, 79-105 rpm for 2315mm stroke); 4425-12000 kW (X52DF-S2.0, 5-8 cyl, 85-120 rpm); 4550-15280 kW (X52-S2.0, 5-8 cyl, 80-120 rpm). Brennstoff: Diesel/HFO (X52), LNG/Gas (X52DF), Ammonia/Diesel (X52DF-A), Methanol capable (future variants). Status: In production (X52DF-A, X52DF-S2.0, X52-S2.0); Legacy X52DF-1.x removed from portfolio 2024. Verifiziert, Datenblatt verlinkt.
Per Hersteller-Datenblatt
Capacity
LNG/HFO/MDO/MGO
Medium
Engine Specifications
520 mm
Bore
2-stroke
Stroke Type
🔧 Komponenten & Aufbau 16
Turbocharger Unit (ABB/MHI/Napier)
ABB Turbocharging
ABB A265-L Turbocharger
common failures:
['Turbine blade erosion (less on gas mode)', 'Bearing failure', 'Compressor surge at low-load gas mode', 'Nozzle ring thermal fatigue']
source family:
X-DF
💡 Gas mode significantly reduces fouling. Extended TC overhaul interval to 16,000-24,000 hrs in gas mode.
Lead time: 16 Wo.
Common Rail Unit (RT-flex / X-DF)
WIN-GD / Winterthur
WIN-GD Common Rail Unit
common failures:
['Fuel rail pressure fluctuation', 'Injection control valve (ICV) stiction', 'High-pressure accumulator fatigue', 'Rail pipe joint leakage']
source family:
X-DF
💡 Rail pressure ~1000 bar (fuel), ~200 bar (servo oil). Monitor rail pressure stability.
Lead time: 16 Wo.
Dual-Fuel System (Gas Mode)
WIN-GD
WIN-GD X-DF Gas Admission System
common failures:
['Gas admission valve (GAV) seal leakage', 'Prechamber fouling', 'Gas/diesel mode changeover failure', 'Methane slip at low load']
source family:
X-DF
💡 Gas admission at 10-16 bar via scavenge ports. Pre-chamber with diesel pilot. Monitor methane slip.
Lead time: 12 Wo.
Engine Control Unit (ECU / ECS)
WIN-GD / ABB
WIN-GD WiDE Engine Control System
common failures:
['Redundancy switchover failure', 'CAN bus communication loss', 'Cylinder-individual timing deviation', 'Software version mismatch across units']
source family:
X-DF
💡 WiDE = Wartsila Intelligent Diesel Engine. Dual-redundant. iCER optimization requires latest firmware.
Lead time: 8 Wo.
Fuel Valve (Injector)
WIN-GD
WIN-GD X-DF Fuel Valve (diesel + pilot)
common failures:
['Pilot nozzle clogging (gas mode soot)', 'Main nozzle erosion (diesel mode)', 'Needle valve seat wear', 'Fuel leak at high-pressure connection']
source family:
X-DF
💡 Pilot injector critical for gas mode ignition. Inspect pilot nozzle at 4,000 hrs. Main valve at 8,000 hrs.
Lead time: 6 Wo.
Exhaust Valve (& Valve Seat)
WIN-GD
WIN-GD Exhaust Valve (X-DF)
common failures:
['Hot corrosion on diesel mode (vanadium attack)', 'Valve rotation failure (Rotocap)', 'Stem guide wear', 'Seat insert loosening']
source family:
X-DF
💡 Gas mode extends valve life significantly (less hot corrosion). Overhaul at 16,000 hrs (gas-only: 24,000 hrs).
Lead time: 10 Wo.
Cylinder Liner
WIN-GD
WIN-GD X-DF Cylinder Liner
common failures:
['Liner wear (reduced in gas mode)', 'Gas port erosion (dual-fuel specific)', 'Cold corrosion at low load diesel mode', 'Scuffing from CLO under-dosage']
source family:
X-DF
💡 Gas ports machined into liner — inspect for erosion. Wear rate significantly lower in gas mode.
Lead time: 16 Wo.
FGSS (Fuel Gas Supply System - LNG/Methanol)
TGE Marine / Wartsila Gas Solutions
FGSS LNG Supply Module (ME-GI type HP / X-DF type LP)
common failures:
['BOG compressor trip', 'Gas valve train leakage', 'Double-wall pipe integrity alarm', 'Master gas valve (MGV) failure to close', 'Inert gas system malfunction']
source family:
X-DF
💡 LP-FGSS for X-DF (6-16 bar). Mandatory gas detection in duct space. Emergency shutdown drill monthly.
Lead time: 26 Wo.
Piston Crown
WIN-GD
WIN-GD X-DF Piston Crown
common failures:
['Crown thermal fatigue (less on gas mode)', 'Cooling bore blockage', 'Crown edge erosion']
source family:
X-DF
💡 Gas mode reduces thermal loading. Inspect at 16,000-24,000 hrs. Extended intervals possible in gas-only service.
Lead time: 14 Wo.
Hydraulic Power Supply (HPS)
WIN-GD
WIN-GD Flex HPS (Common Rail Servo Oil)
common failures:
['Servo oil pump wear', 'Accumulator precharge loss', 'Servo oil contamination', 'Rail pressure instability']
source family:
X-DF
💡 Servo oil system at ~200 bar. Filter changes every 4,000 hrs. Use approved servo oil only.
Lead time: 14 Wo.
Alpha Lubricator Control
WIN-GD / Hans Jensen Lubricators
WIN-GD Pulse Lubrication System
common failures:
['Lubricator quill blockage', 'Timing valve failure', 'Feed rate sensor drift', 'CLO supply pump failure']
source family:
X-DF
💡 Pulse lubrication for accurate CLO timing. Feed rate adjustable 0.5-1.0 g/kWh. Lower feed on gas mode.
Lead time: 6 Wo.
Scavenge Air Cooler
WIN-GD / Alfa Laval
WIN-GD SAC (Plate/Shell-and-tube)
common failures:
['Air side fouling', 'Water side corrosion', 'Condensate drain choke', 'Tube leakage']
source family:
X-DF
💡 Cleaner in gas mode — extended cleaning intervals. Monitor charge air temperature after cooler.
Lead time: 14 Wo.
Governor (Electronic/Woodward)
Woodward
Woodward 723PLUS / WIN-GD Integrated Governor
common failures:
['Speed oscillation during mode changeover', 'Actuator hunting', 'Load sharing instability (dual-fuel transient)']
source family:
X-DF
💡 Integrated with WiDE. Gas/diesel mode switching requires governor parameter set change.
Lead time: 4 Wo.
Crankcase Oil Mist Detector
GEA / Schaller Automation
GEA Westfalia OMD / Schaller VN215+
common failures:
['Sensor window fouling', 'Sample extraction fan failure', 'False alarm from crankcase ventilation change in gas mode']
source family:
X-DF
💡 Same as diesel — SOLAS mandatory regardless of fuel. Test weekly.
Lead time: 2 Wo.
SCR (Selective Catalytic Reduction)
HUG Engineering / Yara Marine
WIN-GD SCR Reactor (for diesel mode Tier III)
common failures:
['Catalyst deactivation from sulfur poisoning (HFO)', 'Urea crystallization in piping', 'Reactor thermal shock', 'Ammonia slip']
source family:
X-DF
💡 Only needed for Tier III in diesel mode (gas mode is inherently Tier III). SCR bypass in gas mode.
Lead time: 20 Wo.
Sensors & Transmitters
WIN-GD / Danfoss / ABB
WIN-GD Sensor Suite (pressure, temp, speed, knock)
common failures:
['Knock sensor calibration drift (critical for gas mode)', 'Exhaust gas temp sensor failure', 'Scavenge pressure transmitter error', 'Speed pickup contamination']
source family:
X-DF
💡 Knock detection sensors critical for X-DF gas mode — prevents detonation. Calibrate every 4,000 hrs.
Lead time: 2 Wo.
📊 Technische Daten
Stroke/Bore Ratio
4.45 (2315mm stroke), 3.93 (2045mm stroke)
Mean Effective Pressure (MEP)
21 bar (X52), 17.3 bar (X52DF)
BSFC X52 (g/kWh)
169.8 g/kWh at MCR 105 rpm (Tier II/III), 170.8 g/kWh low-load tuning
BSFC X52-S2.0 (g/kWh)
154.2-164.8 g/kWh diesel mode, up to 5 g/kWh reduction vs standard
BSFC X52DF-S2.0 (g/kWh)
140.1 g/kWh gas mode + 1.5 pilot, 181.4 g/kWh diesel mode
BSGC X52DF-A-1.0 (g/kWh)
371.5 g/kWh gas mode ammonia, 170.8 g/kWh diesel mode
Power per cylinder
1810 kW/cyl @ 105 rpm (X52), 1490 kW/cyl @ 105 rpm (X52DF), 1500 kW/cyl @ 120 rpm (X52DF-S2.0), 1910 kW/cyl @ 120 rpm (X52-S2.0)
Emissions Compliance
IMO Tier II/III (SCR), iSCR integrated option available
Gas system type (DF)
Low-pressure gas injection with hydraulic pilot fuel injection
bore mm v
520
stroke mm v
2315 (standard X52/X52DF), 2045 (X52-S2.0 / X52DF-S2.0)
rpm v
79-105 rpm (standard), 85-120 rpm (S2.0 variants), 80-120 rpm (X52-S2.0)
fuel v
Diesel/HFO (X52), LNG/Gas (X52DF), Ammonia/Diesel (X52DF-A), Methanol capable (future variants)
status v
In production (X52DF-A, X52DF-S2.0, X52-S2.0); Legacy X52DF-1.x removed from portfolio 2024
datasheet url
https://wingd.com/media/3v3dzg0h/x52_20260402_1533.pdf
⚠️ Typische Ausfälle
- ● _hinweis
- ● items
🔍 Service & Wartung
Follow WinGD X-DF gas system PMS including leak tests, valve function tests and safety shutdown checks. Combustion components inspected condition-based.
🛒 Bezugsquellen & Ersatzteile
Direkte Links zu Hersteller, Datenblatt, Ersatzteil-Portal und Händler — damit du als Inspektor Teile sofort findest.
🔒 Premium-Funktion freischalten📦 Verschleißteile
Spare parts data being added…
Critical stock: gas admission valves, pilot injectors, seals, piston rings, exhaust valves and control modules.
Equipment-Model #36759
· ✓ still in production