The Water-cool 351CC Engine from fourobot combines progressed fluid cooling innovation with demonstrated strength. Our SSL-351-W demonstrate highlights a dual-cylinder setup conveying 25HP at 7500rpm, able of supporting UAVs up to 112kg most extreme takeoff weight. This motor keeps up ideal working temperatures through a precision-engineered water circulation framework, guaranteeing warm solidness amid amplified high-load operations. With 10 a long time of fabricating ability, CE and ISO certifications, and a competitive weight of fair 20.15kg, you get enterprise-grade unwavering quality supported by comprehensive quality assurance.

Temperature administration makes or breaks motor execution. Conventional air-cooled frameworks battle when you thrust them difficult or work in hot situations. Our water cooling arrangement changes that completely.
You get steady barrel divider temperatures. This implies way better fuel combustion and reliable control conveyance. No more warm blur amid basic operations.
The fluid circulation coat diminishes warm stretch by 25% compared to air-cooled options. Your motor runs cooler, endures longer, and keeps up top productivity hour after hour.
Noise diminishment comes standard. The water coat acts as a characteristic sound separators, making this motor perfect for noise-sensitive situations. Think private zones, nature saves, or exactness agrarian operations.
Here's what the Water-cool 351CC Engine brings to your application:
| Configuration | Parameters |
|---|---|
| Cooling Mode | Water Cooling |
| Cylinder | 2 |
| Performance | 25HP / 7500rpm |
| Idle Speed | 2000 rpm/minute |
| Max UAV Takeoff Weight | 112kg |
| Propeller Specifications | 32×16, 34×14 |
| Spark Plug Model | BM6A |
| Diameter × Stroke | 66mm × 54mm |
| Compression Ratio | 10.5:1 |
| Lubrication Ratio | 30:1 |
| Maximum Fuel Consumption | 10L/h |
| Main Engine Weight | 20.15kg |
| Exhaust Weight | 140g |
| Ignitor Weight | 190g |
| Ignition Voltage | 6V-14.4V |
| Dimensions (L×W×H) | 370×360×300mm (±10mm) |
Agricultural Apparatus: Water system pumps and utility vehicles advantage from supported torque conveyance. When you're pumping water in 40°C warm for 8-hour extends, discuss cooling essentially can't keep up. The fluid cooling framework anticipates cylinder seizure and keeps up reliable stream rates.
UAV Operations: Supporting rambles up to 112kg requires dependable control at changing heights. The Water-cool 351CC Engine's warm administration framework guarantees steady execution whether you're studying farmland or conducting mechanical inspections.
Portable Control Era: Require calm, tried and true power in private zones? The coordinates sound hosing from the water coat makes this motor culminate for reinforcement generators and versatile control stations.
Outdoor Hardware: From garden care to ranger service apparatus, applications requiring amplified runtime beneath stack depend on the predominant warm dismissal capabilities this cooling framework provides.
Certified Quality Measures: Your gear meets worldwide necessities with CE, ISO, TAF, and TELEC compliance. Get to worldwide markets without certification headaches.

Proven Fabricating Legacy: 10 a long time of generation encounter implies you get steady, develop forms. No exploratory plans or untested configurations.
Inventory Prepared: We keep up 100 units in stock. Little orders transport inside 20 days. Your venture timeline remains on track.
Responsive Communication: Questions replied inside 5×12 hours. When you require specialized back, you get it fast.
Flexible Shipping: Select discuss, ocean, or arrive transportation based on your direness and budget. We adjust to your coordinations requirements.
Customization Accessible: ODM and OEM administrations let you tailor usefulness to particular territorial prerequisites or interesting application demands.

After-Sales Security: 1-year guarantee sponsored by worldwide nearby operator back. Benefit when and where you require it.
The dual-cylinder setup gives smooth control conveyance over the RPM extend. You get usable torque from 2000rpm sit out of gear up to 7500rpm crest power.
Lightweight development at 20.15kg implies simpler establishment and superior power-to-weight proportions. Your machines remain agile without relinquishing durability.
The 10.5:1 compression proportion optimizes fuel effectiveness whereas keeping up unwavering quality. Cutting edge ethanol-compatible powers work fine with legitimate maintenance.
A 30:1 grease proportion streamlines pre-mix methods. Less mystery, more consistency in your upkeep routine.
Simple structure means straightforward servicing. You don't need specialized tools or extensive training.
The water cooling system requires basic coolant checks and periodic flushing. Use ethylene glycol-based OAT coolant to prevent scale buildup in micro-channels.
Regular spark plug inspection ensures optimal ignition. The BM6A specification is widely available globally.
With proper care, you'll exceed 3,000 operational hours before major overhauls. That's real-world durability you can count on.

Q: How does this compare to a 400cc air-cooled engine?
A: Despite smaller displacement, our product delivers higher sustained power density. Lower thermal fatigue extends service intervals and reduces total cost of ownership.
Q: What coolant should I use?
A: We recommend ethylene glycol-based OAT (Organic Additive Technology) coolant. This prevents cavitation and scale buildup in the cooling channels, ensuring long-term reliability.
Q: Why might engine temperature fluctuate?
A: Temperature swings usually indicate thermostat scaling or air pockets in the cooling circuit. Vacuum-fill replacement during scheduled maintenance eliminates these issues.
Q: Is ethanol fuel compatible?
A: Most configurations feature hardened valve seats for E15 compatibility. Check your specific unit's fuel mapping configuration to confirm.
Q: What's the expected service life?
A: Under standard maintenance schedules, you'll see 3,000+ operational hours before requiring top-end overhauls. Many users exceed this with proper care.
Q: Can I customize this engine for specific applications?
A: Absolutely. Our ODM/OEM services support function customization based on your country's regulations and unique operational requirements.
Q: What makes water cooling superior for my application?
A: If you operate in hot climates, run extended duty cycles, or need consistent power output, the liquid cooling system prevents heat fade and thermal degradation that compromise air-cooled alternatives.
We focus on excellence in every interaction. Our culture emphasizes customer focus, quality delivery, and continuous improvement.
Transparency guides our operations. You get honest communication, realistic timelines, and products that match specifications.
Our team pursues ongoing learning and skills development. This commitment ensures you benefit from the latest manufacturing techniques and quality control methods.
Performance-based excellence drives innovation. We don't rest on past success—we constantly refine processes to serve you better.
Ready to use the Water-cool 351CC Engine to experience the reliability of professional-grade liquid cooling? Contact our team at sales@fourobot.com.
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