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The CAMC high-power 11.81L diesel engine adopts an inline six cylinder, four valve, and four stroke design, developed specifically for optimizing ship power systems. With advanced structural design, efficient performance, and reliable quality, it has become the preferred power solution for inland ships and offshore operation platforms. It has passed international maritime certification and has been exported in bulk to multiple countries and regions in Southeast Asia, the Middle East, South America, etc., demonstrating CAMC's technical strength and global market competitiveness in the field of ship power. The core structure of the diesel engine integrates a top mounted camshaft, an integral cylinder head, and a symmetrical gantry cylinder block. The layout of the rear gear chamber increases transmission efficiency by 15%; Innovative application of double-layer water jacket cooling technology, compared to traditional design, improves heat dissipation performance by 30%. Combined with deep skirt cavity structure and symmetrical cylinder block, it achieves uniform stress distribution and overall high strength, ensuring long-term stable operation. The piston system achieves precise balance between strength and thermal management requirements by optimizing the internal cooling oil circuit and applying high-temperature refractory materials; The top mounted camshaft design simplifies the transmission chain and can output a maximum power of 353kW at 1800r/min. At the same time, the fuel efficiency is increased by 12%, balancing strong power and economy. Relying on CAMC's comprehensive overseas after-sales service system, it provides multilingual technical support, on-site installation and commissioning, and global spare parts supply, providing efficient, reliable, and energy-saving ship power solutions for global ship users.
| Model | CM6D28C.353.20 | CM6D28C.350.20 |
| Type | Six-cylinder,in-line,water-cooled,In-cylinder direct injection | |
| Intake way | Turbocharging | |
| One of cylinders-Bore X Stroke (mm) | 6X128X153 | |
| Displacement (L) | 11.81 | |
| Compression ratio | 17±1 | |
| Rated power/speed (kw(Ps)/r/min) | 321/1800 | 318/1500 |
| One-hour power/speed (kw(Ps)/r/min) | 353/1800 | 350/1500 |
| Min specific fuel consumption (g/kw*h) | <190 | <198 |
| Oil fuel consumption ratio (%) | <0.1 | |
| engine oil capacity (L) | 37L | |
| The min steady operation speed (r/min) | 600 | 1500 |
| Crankshaft rotation direction (see from power output oriented) | Anticlockwise | |
| starting way | Electrical | |
| Net weight (kg) | 1265 | |
| Overall dimensions (length X width X height) (mm) | 1780X984X1388 | |
| Certificate | CCS,IMO | |
1. Advanced structure, efficient transmission: inline six cylinder, four valve, four stroke design, integrated top mounted camshaft, integral cylinder head and other core structures, rear gear chamber layout improves transmission efficiency by 15%, compact structure and stable performance, suitable for ship power system requirements.
2. Excellent heat dissipation and outstanding strength: Innovative double-layer water jacket cooling technology improves heat dissipation performance by 30% compared to traditional designs; Deep skirt cavity+symmetrical cylinder block design, achieving uniform stress distribution, high overall strength, suitable for long-term harsh operating conditions of ships.
3. Strong power, energy-saving and efficient: outputting a maximum power of 353kW at 1800r/min, the optimized design of the piston system balances strength and thermal management; Fuel efficiency increased by 12%, while ensuring strong power and significantly reducing ship operating costs.
4. Scene adaptation and after-sales improvement: specially developed for ship power systems, suitable for inland ships, offshore operation platforms and other scenarios; Through international maritime certification, bulk exports to multiple overseas regions, relying on improved overseas after-sales service, convenient and worry free operation and maintenance.
1. Director of Operations for an inland ship in Southeast Asia: “Our main business is inland ship transportation, and the CAMC high-power 11.81L diesel engine fully meets the power needs of ships. The inline six cylinder design has strong power, with sufficient 353kW power at 1800r/min. The layout of the rear gear chamber has efficient transmission, and the double-layer water jacket cooling technology has excellent heat dissipation, which can maintain stability even during long-term operation. The fuel efficiency has increased by 12%, significantly saving operating costs. The overhead camshaft design simplifies maintenance and has been mass-produced for use with our inland vessels. ”
2. Procurement Manager of a certain offshore operation platform in the Middle East: “Our offshore operation platform has extremely high requirements for the reliability and heat dissipation of the power system, and this 11.81L diesel engine performs outstandingly. The symmetrical gantry cylinder block has sufficient strength, and the deep skirt cavity structure ensures stable operation. The double-layer water jacket has excellent heat dissipation performance and is suitable for complex offshore working conditions. The maximum power of 353kW can meet the power requirements of the platform, with outstanding fuel economy. Coupled with comprehensive overseas technical support and spare parts supply, it has become the core power equipment of our operation platform with worry free operation and maintenance. ”
CAMC International is a reputable state-owned heavy equipment manufacturing and global trading enterprise with over 50 years of sophisticated production experience. Rooted in China’s heavy industry foundation, the company integrates independent R&D, intelligent manufacturing, batch production and global after-sales service, specializing in heavy-duty commercial vehicles, new energy engineering equipment, professional marine power systems and high-precision core engine parts. As a national key manufacturing base, CAMC stands out in the global market with its complete autonomous industrial chain and reliable product strength.
Possessing full-process independent manufacturing capability, CAMC is one of the few domestic enterprises that independently develops and produces all core components. From high-power diesel engines, transmissions and drive axles to integral chassis and cab assemblies, every core part is self-developed and self-manufactured. This integrated production mode ensures precise powertrain matching, stable overall vehicle performance, consistent quality control and flexible customized production, eliminating the instability of assembled products and forming unique core competitive advantages in global engineering and logistics equipment markets.
The company has built a comprehensive and diversified product ecosystem covering fuel power, clean energy and new energy sectors. Its product lineup includes high-end heavy-duty diesel tractors, 8×4/6×4 concrete mixer trucks, dump trucks and various engineering special vehicles, widely applied in long-haul logistics, bulk cargo transportation, urban construction and mine engineering. Equipped with the independently developed 11.81L large-displacement high-power diesel engine, the equipment delivers strong power, high efficiency and excellent durability for heavy-load working conditions. In addition, CAMC’s product portfolio extends to pure electric engineering vehicles, port new energy equipment, high-performance marine diesel engines and low-carbon methanol marine engines, fully meeting land transportation, engineering construction and marine shipping demands.
Adhering to the development concept of technological innovation and green low-carbon upgrading, CAMC continuously optimizes power efficiency, structural durability and intelligent control technology. All products are manufactured in strict accordance with international quality standards and support customized adaptation of multiple emission standards from Euro 2 to Euro 6, as well as targeted calibration for high-temperature, high-humidity, plateau and mining harsh environments. With strong market adaptability and compliance, the products can smoothly pass local certification, customs clearance and legal operation in various countries and regions worldwide.
With a global marketing and service network covering more than 60 countries and regions, CAMC has accumulated a solid overseas market reputation with high cost performance, low failure rate and long service life of its equipment. We provide global customers with factory direct supply, personalized equipment customization, professional technical training, 24-hour remote after-sales response and stable supply of original spare parts. Committed to delivering high-quality Chinese intelligent manufacturing solutions, CAMC always adheres to customer-oriented service philosophy and strives to create long-term stable cooperative value for global partners.
Q1: What are the core advantages of CAMC 11.81L large-displacement diesel engine?
The CAMC 11.81L high-power diesel engine is a heavy-duty large-displacement power unit independently developed for high-load and high-intensity working conditions. Adopting inline six-cylinder structure and professional turbocharging intercooling technology, it features large torque reserve, strong power burst and stable continuous output. Compared with small and medium-displacement engines, it delivers stronger load resistance, better climbing performance and higher operational stability. With mature industrial-grade calibration and integrated reinforced structure design, it has extremely low failure rate and excellent durability, fully meeting the long-term heavy-duty operation needs of commercial vehicles and engineering equipment.
Q2: What power and torque performance does this 11.81L engine achieve?
Benefiting from large 11.81L displacement and optimized air intake & fuel injection system, the engine realizes sufficient power reserve and efficient energy conversion. It maintains high torque output at low and medium speeds, with fast throttle response and no power attenuation under full-load state. The professionally matched turbocharging system significantly improves power efficiency, enabling outstanding performance in heavy-load starting, steep slope climbing and long-distance full-load cruising, perfectly adapting to various harsh high-power demand scenarios.
Q3: What application scenarios and equipment can this engine be adapted to?
This high-power 11.81L diesel engine has ultra-wide adaptability for commercial and engineering fields. It is perfectly matched with heavy-duty 6×4/8×4 tractor trucks, concrete mixer trucks, dump trucks and other engineering special vehicles, suitable for long-distance trunk logistics, bulk cargo transportation, urban engineering construction and mine heavy-load operation. Meanwhile, it can also be used as supporting power for marine auxiliary equipment and large industrial machinery, covering multiple heavy-duty power application scenarios.
Q4: How about the fuel economy of the 11.81L large-displacement engine?
Despite its large displacement and high power, the engine achieves excellent fuel-saving performance through optimized electronic control fuel injection and precise combustion matching technology. It effectively reduces invalid fuel consumption during variable-speed driving and heavy-load operation, realizing a perfect balance between strong power and low fuel consumption. Compared with other high-power engines of the same level, it has lower comprehensive fuel consumption, helping fleet and engineering users effectively reduce long-term operating costs.
Q5: Is the engine suitable for long-term continuous high-intensity operation?
Absolutely. The whole engine adopts heavy-duty reinforced crankshaft, thickened cylinder body and wear-resistant core accessories. Key components are upgraded and optimized for high-temperature, high-vibration and heavy-load harsh working conditions. It features strong structural rigidity, excellent anti-fatigue performance and stable continuous operation capability. It can support all-weather, high-frequency and long-cycle heavy-duty operation, with low daily failure rate and long service life, fully meeting high-intensity operation requirements of commercial fleets and engineering projects.
Q6: Can the engine adapt to different overseas market emission standards?
Yes. The CAMC 11.81L diesel engine supports full-range emission standard customization and adaptation, covering Euro 2 to Euro 6 mainstream standards. We can adjust the engine fuel injection system and post-treatment system according to local environmental protection policies and traffic regulations of different countries. All customized versions can pass local inspection and certification smoothly, ensuring legal road operation and market compliance in overseas regions.
Q7: What customization support can be provided for this engine?
We provide multi-dimensional personalized customization services for the 11.81L high-power diesel engine. Customers can adjust power horsepower, torque parameters, speed limit and fuel system configuration according to actual working conditions. It supports targeted calibration for plateau areas, high-temperature and humid regions, dusty mining areas and other special environments. It can be seamlessly matched with different vehicle chassis and engineering equipment without additional modification, realizing one-stop power matching solution.
Q8: What are the maintenance and after-sales advantages of the engine?
The 11.81L diesel engine adopts mature and reliable structural design with fewer vulnerable parts and a long maintenance cycle. Daily maintenance is simple and convenient, effectively reducing later maintenance time and cost. Relying on CAMC’s global after-sales service system, overseas users can enjoy standard international warranty for core components, long-term stable supply of original spare parts, 24-hour remote technical support and professional maintenance training, ensuring long-term stable operation of equipment.
