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MAN Energy Solutions
6S46ME-C9.6
A 6‑cylinder, low‑speed two‑stroke marine diesel engine delivering up to 18 600 kW at 129 rpm, notable for its hydraulic power‑supply valve train and advanced electronic control (ELFI/ELVA).
18600.0 kW
Power
Engine Specifications
6
Cylinders
460 mm
Bore
1932 mm
Stroke
18,600 kW
MCR Power
129.0 rpm
MCR RPM
2-stroke
Stroke Type
Family: MAN Energy Solutions ME/ME-C
· Tier: Tier III
· Fuel: HFO, VLSFO, MDO
Inspector Detail
▸
Designation decoded
6 = Zylinderzahl, S = Super Long Stroke, 46 = Bohrung 460 mm, ME-C = MAN Electronically controlled Mark C, 9.6 = Mark 9.6 Steuerungsgeneration.
Background
Die 6S46ME-C mit 460mm Bohrung und 1932mm Hub (S/B=4.2) ist eine Nischen-Plattform. 6 Zylinder fuer Handysize-Bulker und Multi-Purpose-Carrier.
Calculated metrics
Stroke To Bore Ratio
4.2
Inspector checklist
Kraftstoffsystem
- Kraftstoffpumpen: Plunger, Duesen
- Cat-Fines: <15 ppm
- VLSFO
Laufzeug und Tribologie
- Laufbuchsen 460mm: Wear, BN
- Kreuzkopf: S/B=4.2, LI-Aufnahme
- Stopfbuchse: Drainage
ME-Steuerung
- HPS 300 bar
- FIVA Mark 9.6
- CCU
Turbolader
- Lagerspiel, Reinigung
- Spuelluftdruck
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur | 320-420 Grad C | >25 Grad C Spread |
| Spuelluftdruck | 1.5-3.0 bar | TC |
| Zylindeloelverbrauch | 0.7-1.2 g/kWh | BN |
| OMD | <2.5% LEL | Stopfbuchse |
Common Failure Modes
Cat-Fine-Schaeden
Symptoms: Wear
Causes: Separator
Preventive: <15 ppm.
Cold Corrosion
Symptoms: Wear
Causes: BN
Preventive: BN anpassen.
Expert tips
- 💡 S46 ist weniger verbreitet — Ersatzteil-Lieferzeiten koennen laenger sein als bei Standard-Groessen.
- 💡 6 Zylinder bei 460mm: Guter Massenausgleich, wenig Vibration.
Related components
Turbolader
Spuelluftkuehler
Separatoren
Alpha Lubricator (6)
HPS
Classification & regulatory
IMO Tier II. ECA: VLSFO/Scrubber.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Other Cylinder Configurations 50
5G40ME-C9.6
5 cyl
· 8,550 kW
5G45ME-C9.6
5 cyl
· 11,250 kW
5G50ME-C9.6
5 cyl
· 15,500 kW
5G60ME-C9.6
5 cyl
· 24,500 kW
5G65ME-C9.6
5 cyl
· 29,350 kW
5G70ME-C9.6
5 cyl
· 34,350 kW
5G80ME-C9.6
5 cyl
· 44,500 kW
5G90ME-C9.6
5 cyl
· 56,000 kW
5G95ME-C9.6
5 cyl
· 63,500 kW
5S40ME-C9.6
5 cyl
· 7,850 kW
5S46ME-C9.6
5 cyl
· 15,500 kW
5S50ME-C9.6
5 cyl
· 18,650 kW
5S60ME-C9.6
5 cyl
· 28,250 kW
5S65ME-C9.6
5 cyl
· 35,000 kW
5S70ME-C9.6
5 cyl
· 40,400 kW
5S80ME-C9.6
5 cyl
· 51,000 kW
5S90ME-C9.6
5 cyl
· 64,350 kW
5S95ME-C9.6
5 cyl
· 71,000 kW
6G40ME-C9.6
6 cyl
· 10,260 kW
6G45ME-C9.6
6 cyl
· 13,500 kW
6G50ME-C9.6
6 cyl
· 18,600 kW
6G60ME-C9.6
6 cyl
· 29,400 kW
6G65ME-C9.6
6 cyl
· 35,220 kW
6G70ME-C9.5
6 cyl
· 20,520 kW
6G70ME-C9.6
6 cyl
· 41,220 kW
6G80ME-C9.6
6 cyl
· 53,400 kW
6G90ME-C9.6
6 cyl
· 67,200 kW
6G95ME-C9.6
6 cyl
· 76,200 kW
6S40ME-C9.6
6 cyl
· 9,420 kW
6S50ME-C8.5
6 cyl
· 10,680 kW
6S50ME-C9.6
6 cyl
· 22,380 kW
6S60ME-C9.6
6 cyl
· 33,900 kW
6S65ME-C9.6
6 cyl
· 42,000 kW
6S70ME-C8.5
6 cyl
· 18,660 kW
6S70ME-C9.6
6 cyl
· 48,480 kW
6S80ME-C9.5
6 cyl
· 24,000 kW
6S80ME-C9.6
6 cyl
· 61,200 kW
6S90ME-C9.6
6 cyl
· 77,220 kW
6S95ME-C9.6
6 cyl
· 85,200 kW
7G40ME-C9.6
7 cyl
· 11,970 kW
7G45ME-C9.6
7 cyl
· 15,750 kW
7G50ME-C9.6
7 cyl
· 21,700 kW
7G60ME-C9.6
7 cyl
· 34,300 kW
7G65ME-C9.6
7 cyl
· 41,090 kW
7G70ME-C9.6
7 cyl
· 48,090 kW
7G80ME-C9.5
7 cyl
· 34,930 kW
7G80ME-C9.6
7 cyl
· 62,300 kW
7G90ME-C9.6
7 cyl
· 78,400 kW
7G95ME-C9.5
7 cyl
· 46,550 kW
7G95ME-C9.6
7 cyl
· 88,900 kW
Components & Design
Alpha Lubricator Control
MAN Energy Solutions
MAN Alpha Lubricator Mk III
Feed rate 0.6-1.2 g/kWh depending on fuel sulfur. Monitor via Alpha ACC (Adaptive Cylinder lubrication Control).
Lead time: 6 wk
25.0 kg
Crankcase Oil Mist Detector
Schaller Automation
Schaller Visatron VN215+ OMD
SOLAS mandatory. Test weekly. Clean sensor optics every 4,000 hrs. Replace reference cell every 2 years.
Lead time: 2 wk
8.0 kg
Crosshead Bearing
MAN Energy Solutions
MAN Crosshead Bearing (thin-shell, white metal)
Inspect at 16,000 hrs. Check bearing clearance. Monitor via bearing temperature and oil analysis.
Lead time: 12 wk
380.0 kg
Cylinder Liner
MAN Energy Solutions
MAN ME-C Cylinder Liner (bore-cooled)
Wear monitoring via calibration. Max wear 0.8% of bore. Replace typically at 32,000-60,000 hrs.
Lead time: 16 wk
3500.0 kg
Engine Control Unit (ECU / ECS)
MAN Energy Solutions
MAN ECS (Engine Control System)
Dual-redundant ECU. Software updates via MAN PrimeServ. Keep backup CCU on board.
Lead time: 8 wk
45.0 kg
Exhaust Valve (& Valve Seat)
MAN Energy Solutions
MAN Exhaust Valve (Nimonic/Stellite)
Overhaul at 8,000-12,000 hrs. Stellite-faced seat. Grinding/lapping at overhaul. Check spindle guide clearance.
Lead time: 8 wk
320.0 kg
FIVA Valve (ME-type)
MAN Energy Solutions
MAN FIVA Valve (ME-C)
FIVA = Fuel Injection Valve Actuator. Overhaul at 8,000 hrs. Critical for timing accuracy.
Lead time: 8 wk
35.0 kg
Fuel Booster Module (ME-type)
MAN Energy Solutions
MAN Fuel Booster Module
Overhaul at 16,000 hrs. Pressure test fuel pipes. Check plunger wear with micrometer.
Lead time: 12 wk
450.0 kg
Fuel Valve (Injector)
MAN Energy Solutions
MAN ME-C Fuel Valve Assembly
Overhaul every 4,000-8,000 hrs. Pressure test after overhaul. Nozzle replacement at 8,000 hrs.
Lead time: 4 wk
85.0 kg
Governor (Electronic/Woodward)
Woodward
Woodward 723PLUS Digital Governor
Electronic governor integrated with ECS on ME engines. Firmware updates via Woodward service.
Lead time: 4 wk
15.0 kg
Hydraulic Cylinder Unit (HCU)
MAN Energy Solutions
MAN HCU (ME-C type, per cylinder)
One HCU per cylinder. FIVA valve overhaul at 8,000 hrs. Booster overhaul at 16,000 hrs.
Lead time: 12 wk
1200.0 kg
Hydraulic Power Supply (HPS)
MAN Energy Solutions
MAN HPS Unit (ME-C)
Servo oil SAE 30 / System oil. Filter change every 4000 hrs. Monitor servo oil pressure.
Lead time: 16 wk
2800.0 kg
Main Bearings
MAN Energy Solutions
MAN Main Bearing Shells (white metal/tri-metal)
Inspect at 16,000 hrs. Jack up crankshaft for clearance measurement. Replace at signs of overlay fatigue.
Lead time: 8 wk
250.0 kg
PMI (Pressure Measurement Indicator)
MAN Energy Solutions
MAN PMI Sensor System
Online cylinder pressure monitoring. Calibrate sensors annually. Essential for combustion optimization.
Lead time: 4 wk
5.0 kg
Piston Crown
MAN Energy Solutions
MAN ME-C Piston Crown (bore-cooled Cr-Mo steel)
Inspect at 16,000 hrs. Pull piston at 16,000-24,000 hrs. Check cooling bores with borescope.
Lead time: 16 wk
1800.0 kg
Piston Ring Pack
MAN Energy Solutions
MAN Piston Ring Set (CPR / AL rings)
CPR (Controlled Pressure Relief) top ring. Replace at 8,000-16,000 hrs depending on wear.
Lead time: 4 wk
60.0 kg
Scavenge Air Cooler
MAN Energy Solutions
MAN Scavenge Air Cooler (plate-type)
Clean air side every 4,000-8,000 hrs (chemical/HP water). Monitor pressure drop and charge air temp.
Lead time: 16 wk
5500.0 kg
Turbocharger Unit (ABB/MHI/Napier)
ABB Turbocharging
ABB A175-L Turbocharger
Overhaul at 12,000-16,000 hrs. Water washing every 24-100 hrs depending on load.
Lead time: 12 wk
4500.0 kg
Technical Data
unified from engine model
True
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Maritime Network →Manuals
-
operating
MAN B&W ME/ME-C/ME-B Engine Operation (OM-ME-C)
-
maintenance
MAN B&W ME/ME-C Maintenance Manual (MM-ME-C)
-
spare_parts
MAN B&W ME/ME-C Illustrated Parts Catalogue (IPC-ME-C)
-
service_letter
SL-ME Service Letters Collection (SL-ME)
- technical_data
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Equipment Model #38463
· ✓ still in production