Are you ready to get the first vessel for heavy-duty services?
Vessel equipment and onboard settings are crucial to serve the purpose. The marine engine is the heart and soul of operations, providing powerful propulsion and meeting auxiliary energy supply needs. There are endless reasons newbie and adept vessel operators trust MAN ME-C engines for diverse powering needs in watercrafts. Currently, more than 12,000 two-stroke variants, in addition to numerous four-stroke models, are in full-time service globally. These account for more than 50% merchant fleets on oceanic voyages. The brand has set the benchmark as the leading provider of marine propulsion systems globally. From naval defense units to commercial cargo ships, MAN engines serve a wide range of applications across various power categories.
In this definitive guide, we discuss the nitty-gritty of choosing a MAN marine engine for your vessel – whether new or nearing the end of its service life.
Powerful MAN ME-C Engine Models for Heavy-Duty Vessels
The ME-C series comprises a lineup of two-stroke models, primarily used as main propulsion engines. However, a few four-stroke engines and generators integrate with the ME-C models to perform auxiliary onboard applications. Here is a quick synopsis of the two-stroke models, their configurations, and suitable vessel types:
ME-C Series – Two-Stroke Main Propulsion Engines
#1. Engine Model – S35ME-C
Cylinders: 5-8
Vessel Types: Handymax bulk carriers, feeder ships
Specifications
Bore (mm): 350
Stroke (mm): 1400
Power Output (kW/Cyl): 500-600
Speed Range (rpm): 142-167
#2. Engine Model – S40ME-C
Cylinders: 6-8
Vessel Types: Product tankers, small container ships
Specifications
Bore (mm): 400
Stroke (mm): 1,680
Power Output (kW/Cyl): 720-820
Speed Range (rpm): 114-146
#3. Engine Model – S50ME-C / C9.6
Cylinders: 6-8
Vessel Types: Medium-range tankers, Panamax bulkers
Specifications
Bore (mm): 500
Stroke (mm): 2,000
Power Output (kW/Cyl): 1,050-1,200
Speed Range (rpm): 90-127
#4. Engine Model – G60ME-C / C10.5
Cylinders: 6-9
Vessel Types: Post-Panamax container ships
Specifications
Bore (mm): 600
Stroke (mm): 2,580
Power Output (kW/Cyl): 1,650-1,850
Speed Range (rpm): 80-105
#5. Engine Model – S60ME-C / C9.5
Cylinders: 6-8
Vessel Types: Crude/product tankers
Specifications
Bore (mm): 600
Stroke (mm): 2,500
Power Output (kW/Cyl): 1,600-1,750
Speed Range (rpm): 78-100
#6. Engine Model – G70ME-C / C10.5
Cylinders: 6-9
Vessel Types: Large container ships
Specifications
Bore (mm): 700
Stroke (mm): 2,920
Power Output (kW/Cyl): 2,300-2,600
Speed Range (rpm): 74-92
#7. Engine Model – S70ME-C / C9.2
Cylinders: 6-8
Vessel Types: Large bulk carriers, VLCCs
Specifications
Bore (mm): 700
Stroke (mm): 2,800
Power Output (kW/Cyl): 2,400-2,750
Speed Range (rpm): 72-91
#8. Engine Model – S80ME-C / C9.2
Cylinders: 6-8
Vessel Types: Ultra large crude carriers (ULCCs)
Specifications
Bore (mm): 800
Stroke (mm): 3,200
Power Output (kW/Cyl): 3,000-3,300
Speed Range (rpm): 68-84
#9. Engine Model – S90ME-C / C9.2
Cylinders: 6-12
Vessel Types: VLCC/ULCV
Specifications
Bore (mm): 900
Stroke (mm): 3,200
Power Output (kW/Cyl): 3,700-4,200
Speed Range (rpm): 70-82
#10. Engine Model – G95ME-C / C10.5
Cylinders: 6-12
Vessel Types: Ultra large container ships (18,000+ TEU)
Specifications
Bore (mm): 950
Stroke (mm): 3,460
Power Output (kW/Cyl): 4,400-5,000
Speed Range (rpm): 68-78
Key Benefits – Why Vessel Owners Worldwide Trust MAN Marine Engines
Whether a mid-life upgrade or the futuristic powering solution for modern watercrafts, MAN engines are the prime consideration for the marine professionals. MAN ME-C engines are designed for use on bulk carriers, ultra-large ships, and other vessels requiring heavy-duty propulsion performance. While the two-stroke variants are primarily main propulsion engines, some colossal four-stroke modules from the brand serve auxiliary applications using ME-C engines.
1. Low Specific Fuel Oil Consumption (SFOC)
MAN’s ME-C engines are optimized for low fuel economy. The series nomenclature ‘E’ denotes electronically-controlled fuel injection. Moreover, variable exhaust valve timing regulated by the engine control system (ECS) allows the system to empty the soot, particulates, and fumes from the cylinders before the next cycle.
These integrated systems promote clean combustion, complete fuel burning, and minimal exhaust gases to produce maximum energy from each drop of fuel.
The SFOC values in modern MAN two-stroke engines are among the lowest in the industry. It significantly reduces operational costs, especially for long voyages.
2. Wide Power Range for All Vessel Types
MAN ME-C engines from S35ME-C to S90ME-C cover a power range of 500-5,000 kW/cyl. Whatever the vessel type or size, there is a powerhouse model for efficient propulsion operation. From medium-duty cargo vessels to ultra-large container ships and LNG carriers, MAN engines are designed to operate reliably without downtime issues.
The state-of-the-art design enables easy adaptation to various ship structures, including container vessels, bulk carriers, tankers, Ro-Ro vessels, and naval support craft.
3. Emission Compliance Standards
MAN ME-C engines comply with the strictest IMO Tier II and Tier III emission regulations as per the MARPOL Annex VI provisions. These engines have provisions for integration with SCR (Selective Catalytic Reduction) or EGR (Exhaust Gas Recirculation) systems to minimize NOx and other hazardous compounds. It ensures vessels are safe for travelling in ECAs (Emission Control Areas) and compliant with future regulations.
4. Robust Construction and Longevity
The two-stroke design and slow-speed operation (typically between 60 and 100 rpm) exert lower mechanical stress. It reduces the occurrence of overheating, vibration, and wear of the engine components. Reduced stress and damage allow the vessels to operate on longer service intervals, achieving an extended engine lifecycle.
The MAN engines feature advanced materials, including Ni-resist piston crowns and chrome-ceramic liners. These structures contribute to the durability and structural integrity of the vessel for years, allowing vessel operators to extend the overhaul life. Typically, these engines last 15–20 years with proper maintenance, often outlasting the vessel’s hull life cycle.
Alfa Marine Spare Parts further recommends using OEM MAN engine parts for replacing faulty and damaged items. Paying more for the genuine spare parts is an investment compared to compromising performance with poor aftermarket parts.
5. Ease of Maintenance and Global Support
MAN offers 24/7 global technical assistance and remote troubleshooting services via its PrimeServ network. The manufacturer also provides a detailed document containing information about the engine, compatible parts, and more. We have mentioned more details in the technical documents below.
Modular engine design enables easy component replacement for pistons, bearings, liners, valve units, and other components. There’s no need to go for a complete teardown when you can restore the like-new engine life at affordable prices.
The brand offers a wide selection of genuine replacement parts, primarily remanufactured from previously used and faulty components. ReMAN parts are low-cost replacement items with the exact product specifications and sizes.
6. Smart Digital Integrations
ME-C engines integrate with MAN CEON, a digital monitoring system. The combined mechanism depicts real-time engine analytics and predictive maintenance data, widening the scope for optimizing performance, efficiency, and overall equipment safety. Tracking real-time data is beneficial for:
- Identifying faulty operations quickly
- Check fuel, lubricant, and coolant levels in the storage tank
- Eliminate the risk of significant damage, downtime, and engine failure
- Schedule overhauls when required, and not based on operation hours
7. Support for Repowering and Retrofit Projects
Vessels operating on traditional MAN engines are easily upgradeable with ME-C engines through some basic modifications. Repowering your existing equipment with MAN ME-C engines offers several advantages:
- Digital integrations for enhanced equipment monitoring and data analysis
- Up to 15-20% savings on fuel costs with optimized injection delivery
- Comply with the strictest maritime laws and cruise the sensitive zones without issues
- Extended vessel and lifecycle
MAN retrofit kits seamlessly integrate into old vessels with minimal hull modification, reducing dock time and cost.
Technical Documentation Package for MAN ME-C Engines
All MAN ME-C engines comprise a package of technical documents. Here is a summary of these documents and their importance for every vessel operator/owner.
1. Project Guide (PG)
The project guide comprises technical data about the engine. These documents include critical information regarding mounting dimensions, foundation loads, basic performance data (power bands, SFOC ranges), fuel options, typical piping diagrams, exhaust/turbo arrangements, basic system requirements, and general installation notes.
2. Service Letters (SL)
MAN authorities regularly release OEM bulletins about diverse marine technical aspects. These letters contain valuable information for the fleet owners, marine engineers, and vessel operators. The content highlights the technical innovations and service experiences gathered during engine trials, equipment maintenance, overhaul sessions, and other related activities.
3. EIAPP Supplement (NOx Technical File)
All vessels require the Engine International Air Pollution Prevention (EIAPP) certificate from a competent authority to meet the maritime laws in their specific voyage routes. The EIAPP supplement or technical file is an all-inclusive document that comprises details of the NOx test results and the equipment configurations that comply with MARPOL Annex VI (Tier II/Tier III) for NOx. It also contains a list of mandatory settings and permissible adjustments impacting the various types of emissions in marine engines, turbochargers, and other devices.
How do the Technical Documents Help Vessel Owners
The vessel owner purchasing a MAN marine engine can procure the specific technical documents (primarily delivered as PDF files) from the manufacturer. These documents are available on request at the official MAN Energy Solutions portal. Alternatively, you may also visit the local OEM office to collect your copy and any restricted data (which may not be available online). The restricted data is provided upon sharing the engine mark and the serial number.
These technical documents are incredibly crucial for first-time MAN marine engine users. Get access to in-depth user instructions for safe and efficient operation. Files from the Project Guides, Service Manuals, and Engine Technical Files—contain accurate data on engine performance, maintenance procedures, and emission compliance. Following these resources can be beneficial in conducting DIY engine inspection, routine maintenance, and servicing. When the complete list of replacement parts is handy in a protected document, ship owners can refer to it when purchasing OEM MAN replacement parts.
