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WinGD

5X52DF

Name: WinGD 5X52DF
Brand: WinGD

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.

9400.0 kW

Power

Engine Specifications

Cylinders

520 mm

Bore

2315 mm

Stroke

9,400 kW

MCR Power

118.0 rpm

MCR RPM

2-stroke

Stroke Type

Family: WIN-GD X-DF · Tier: IMO Tier III (gas mode) · Fuel: HFO, VLSFO, MDO, LNG

Other Cylinder Configurations 33

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

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

unified from engine model True

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Common failures & inspection points

Gas Admission Valve (GAV) stroke sensor unreliability at sea causing unplanned diesel mode shutdown

Visual inspection of GAV sensor wiring, sensor response test at dock and sea trial, check sensor connector corrosion

wingd.com/media/3jannogh/service-ex...

Fuel gas supply pressure fluctuations under heavy sea conditions from ship-side LNG system causing engine speed oscillations

Pressure relief valve setting verification, fuel supply isolation valve function check, regulator response test under load variation

wingd.com/media/3jannogh/service-ex...

Scavenge air cooler type changes and turbocharger allocation revisions across X-engine platform requiring careful commissioning verification

Cross-check installed turbocharger serial number against commissioning document, scavenge cooler type plate vs contract specifications

wingd.com/media/osjcjdoc/mim_wingd_...

Oil starvation risk on turbocharger bearing during engine startup and low-pressure transients common in all two-stroke diesels

Check lube oil supply pressure before start, inspect turbo bearing condition at overhaul, verify pre-lubrication startup sequence in manual

www.machinery lubrication.com/Read/...

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #38788 · ✓ still in production