Marine Portable water-cooled generator

JLMECH：Your Trusted Marine Portable Water-Cooled Generator Manufacturer & Supplier

Wuhan Jlmech Co., Ltd. specializes in designing and manufacturing reliable Marine Portable water-cooled generator for industrial and commercial use. With 3 R&D centers, 26 global offices, and certifications like CE, ISO, and GB/T 2820-97, our generators combine cutting-edge technology with fuel efficiency and durability. As an OEM partner for brands like Cummins and Perkins, we deliver tailored power solutions backed by a 2-year warranty and 24/7 technical support.

Marine Portable Water-Cooled Generator Description

Marine Portable water-cooled generator is specially designed for marine environments, integrating efficient heat dissipation and portability, and are suitable for various ship types such as yachts, fishing vessels, and merchant ships.

I. Core Technologies and Design Features

1. Optimized Water-cooling System

Closed-loop water-cooling technology is adopted to achieve efficient heat dissipation through stainless steel water jackets (such as 316L stainless steel) and water/air heat exchangers, ensuring stable operation under long-term high loads. Some models use seawater cooling, directly utilizing seawater for heat dissipation to adapt to offshore environments.

2. Low Noise and Anti-vibration Design

Equipped with multi-layer soundproof cabins (GRP material + sound-absorbing materials) and dual shock absorption systems (internal soft supports + external semi-elastic brackets), the operating noise can be controlled below 56 decibels, minimizing vibration. For example, the Panda i-series has become one of the quietest marine generators on the market through the design of shock absorbers and soundproof cabins.

3. Compact Structure and Lightweight

Small in size and light in weight, it is suitable for installation in narrow spaces.

4. Corrosion Resistance and Durability

Components in contact with seawater are all made of 316L stainless steel or nano-level anti-corrosion coatings (salt spray test ≥ 1,000 hours) to resist corrosion in high-salt and high-humidity environments. Engine and generator components (such as Yanmar and Cummins) have undergone rigorous testing and still maintain reliability after running for more than 3,000 hours annually.

II. Performance and Functional Advantages

1. Efficient Output and Stability

It provides pure sine wave power, with voltage fluctuation controlled within ±1%, meeting the requirements of high-starting current equipment such as air conditioners and diving compressors. Some models support variable-speed operation, automatically adjusting the rotation speed according to the load, increasing fuel efficiency by more than 25%.

2. Multiple Protections and Intelligent Monitoring

It integrates protection functions such as overheating, overload, and low oil pressure, and is equipped with real-time monitoring devices such as temperature sensors and water leakage alarms. For example, Kangfu Technology's generators use multi-node de-excitation protection technology to ensure safe operation under complex working conditions.

III. Application Scenarios and Selection Recommendations

1. Typical Applications

Yachts and Leisure Vessels: Provide stable power for air conditioners, entertainment equipment, and kitchen appliances, balancing noise reduction and aesthetics.

Fishing Vessels and Merchant Ships: Meet the continuous power supply needs of refrigeration equipment, deck machinery, and communication navigation systems.

Emergency Backup: Comply with IMO standards, automatically start within 30 seconds after the main power fails, and supply power to life-saving equipment for at least 18 hours.

2. Key Selection Parameters

Power Matching: Calculate based on the total ship load. It is recommended that the load of a single generator does not exceed 80%, and the standby unit should cover the demand in case of the largest single-unit failure.

Fuel Type: Diesel generators (such as Cummins QSB7) have good fuel economy and are suitable for long-term operation; gasoline generators start quickly and are suitable for short-term high-load scenarios.

Certification Standards: Priority should be given to products with ship inspection certificates such as CCS and DNV to ensure compliance with international regulations.

IV. Maintenance and Usage Notes

1. Daily Maintenance

Cooling System: Regularly replace the coolant (recommended every 500 hours or half a year), and check whether the water jacket and heat exchanger are blocked or corroded.

Fuel and Lubrication: Use clean diesel, replace the engine oil and filter every 250 hours, and avoid impurities from affecting the engine life.

Electrical System: Check whether the cable connections are loose, test the insulation resistance (≥ 0.5MΩ), and ensure reliable grounding.

2. Fault Handling Key Points

Starting Failure: Check the battery voltage (≥ 12V), fuel supply, and starter motor connection.

Overheating Alarm: Clean the cooling grille and check the coolant level or water pump operation.

Voltage Fluctuation: Calibrate the AVR (Automatic Voltage Regulator) and check whether the load exceeds the rated power.

3. Long-term Storage

Empty the fuel and coolant, apply anti-rust oil to the metal parts, and start the generator once a quarter for 30 minutes to maintain performance.

Specifications

• Power Range: Spans from 3.5kW to 2200kW, adapting to diverse ship requirements:
• Small yachts: 3.5 –18kW
• Medium merchant ships: 50–500kW
• Large vessels: 2200kW high-voltage models
• Voltage Output: Supports multi-voltage configurations:
• Single-phase: 230V
• Three-phase: 400V/440V
• High-voltage customization: 6.6kV

Why Choose US?

1. OEM Expertise: 15+ years as a trusted supplier to global brands like Doosan and MTU.
2. Quality Assurance: Rigorous testing via automated lines and powder coating for corrosion resistance.
3. Global Support: 26 overseas offices in Africa and Southeast Asia ensure prompt service.
4. Cost Savings: Bulk-order discounts and a 2-year warranty on mechanical/electrical components.

Packaging and Delivery

All Marine Portable water-cooled generator are securely packed in weatherproof crates with anti-vibration padding. We offer flexible logistics solutions, including FOB or CIF terms, with on-time delivery guaranteed.

Company Profile

Wuhan Jlmech Co., Ltd. employs 126 technical experts across 11 Chinese branches and 3 R&D centers. Our facilities include advanced assembly workshops and automated testing lines, ensuring every generator meets global performance benchmarks.

Factory After-Sales Service

Enjoy a 2-year warranty, lifetime technical support, and access to genuine spare parts. Our team resolves issues within 48 hours, minimizing downtime.

Certification

Our products comply with CE, ISO8528, GB/T 2820-97, and ISO14001 standards, ensuring safety and environmental responsibility.

Exhibitions

We showcase our generator at industry expos like Canton Fair and POWER-GEN Asia, highlighting innovation and reliability.

FAQ

Q: Can I request a customized 220V diesel generator?
A: Yes! We tailor voltage, fuel efficiency, and noise levels to your project needs.​​​​​​​

Q: How do I maintain the generator?
A: Our team provides free maintenance guides and remote troubleshooting.

Q: Are spare parts available globally?
A: Yes. Our overseas warehouses stock parts for quick replacements.

Power Your Projects with Confidence

Whether you need backup power for a hospital or primary energy for mining operations, Wuhan Jlmech's Marine Portable water-cooled generator deliver unmatched reliability. Trust our expertise, global network, and commitment to quality. Contact us today at skala@whjlmech.com to discuss your requirements!