Views: 0 Author: Site Editor Publish Time: 2025-12-19 Origin: Site
For mainstream commercial vessels including 20-36m fishing boats and 1,000-2,500 ton cargo ships, power system selection has long been a critical pain point for shipowners. An underpowered engine leads to insufficient propulsion, delaying fishing operations or cargo transportation schedules and directly impacting profitability; an oversized engine, on the other hand, causes excessive fuel consumption, increases daily operating costs, and creates unnecessary waste of resources. To address this core dilemma, Hebei Custom Vehicle( https://www.customsvehicle.com/) offers the Yuchai YC6K series marine diesel engines, which achieve seamless integration with different vessel types through a scientific "model-scenario-parameter" matching system, delivering reliable, efficient, and cost-effective power solutions for shipowners worldwide.
Based on in-depth analysis of over 1,000 shipowner cases and extensive operational data accumulation, Hebei Custom Vehicle has refined a YC6K series model-vessel matching system that precisely caters to the unique requirements of 20-36m fishing vessels and 1,000-2,500 ton cargo ships. This system eliminates the guesswork in power selection by aligning engine performance with vessel size, load capacity, and operational objectives.
Vessel Type | Recommended Model | Rated Power/Speed | Core Adaptation Advantages |
20-25m small fishing vessels (main/auxiliary engine) | 266kW@1500rpm | 1. Speed perfectly matched to long-duration cruising, reducing fuel consumption by 8% compared to similar-power competitors; 2. Freshwater forced circulation cooling system resists salt spray corrosion, enabling stable operation in offshore environments without overheating; 3. Dual-purpose design supports use as 180-300kW generator set auxiliary engine, lowering equipment procurement costs. | |
28-32m medium fishing vessels | 309kW@1500rpm | 1. 12.155L large displacement (bore 129mm + stroke 155mm) delivers strong torque, ensuring no power attenuation during full-load trawling; 2. Maintains stable speed above 12 knots, with cross-compatibility for 1,000-2,000 ton cargo ships, adapting to mixed operational needs. | |
32-36m large fishing vessels / 2,500-ton cargo ships | YC6K600L-C20 (high-speed craft engine) | 441kW@2100rpm | 1. High-power output tailored for short-distance efficient transportation, boosting speed to 18 knots (20% higher than industry averages); 2. Seamlessly compatible with marine generator sets, meeting high electricity demands for refrigeration, processing, and living on large vessels. |
Marine engines face diverse and harsh operating conditions—high salt spray, extreme temperatures, and heavy-load impacts—varying significantly across sea areas. Hebei Custom Vehicle goes beyond standard product parameters to provide targeted technical modifications for the YC6K series, ensuring adaptability to local environments.
In the South China Sea, where high salt spray causes severe corrosion, YC6K365L-C20 and YC6K420L-C20 models are fitted with ceramic anti-corrosion cylinder coatings, combined with alloy cast iron bodies (as specified in basic parameter sheets), enabling 5,000 hours of continuous operation without rust or performance degradation. For the East China Sea’s low-temperature anchorages, the YC6K600L-C20’s cooling system is optimized to enhance cold-start capability, achieving reliable ignition within 10 seconds at -5℃. For Southeast Asia’s heavy-load routes with frequent load changes, the YC6K420L-C20 receives an upgraded integral crankshaft (marked in technical specifications), increasing impact resistance by 30% to handle the stresses of full-load navigation.
The YC6K series stands out in the marine engine market due to its comprehensive performance advantages, rooted in advanced engineering and rigorous testing. All models adopt a high-pressure common-rail fuel injection system, which improves combustion efficiency, reduces fuel consumption, and lowers exhaust emissions to meet international marine environmental standards. The reinforced engine block and precision-machined components enhance structural stability, enabling long-term operation under high load without failure.
Notably, the series excels in fuel economy—a key concern for shipowners. Through optimized combustion chamber design and intelligent electronic control, the YC6K models achieve 5-10% lower fuel consumption than comparable engines in the same power class. Additionally, the engines feature a modular design, simplifying maintenance and reducing downtime, as spare parts are readily available and replacement processes are streamlined. This combination of power, efficiency, and durability ensures long-term operational value for shipowners.
The effectiveness of the YC6K series’ precision matching solution is validated by real-world applications. A 28m fishing vessel operating out of Surabaya, Indonesia, previously relied on a 290kW engine from another brand, facing persistent challenges: during full-load trawling, its speed barely reached 8 knots, prolonging fishing voyages, and fuel costs exceeded $4,800 per 7-day trip—significantly eroding profits.
After consulting with Hebei Custom Vehicle, the shipowner opted for the YC6K420L-C20 model, customized with a salt spray-resistant cooling system to suit Southeast Asia’s marine environment. The results were transformative: the vessel’s stable speed increased to 10 knots, shortening operation time and improving catch efficiency, while fuel costs dropped to 1,200. The additional investment in the YC6K engine was fully recovered within just 3 months, and the engine has maintained consistent performance with minimal maintenance requirements over 12 months of operation.
