Introduction
Discover the 500KW Yuchai Diesel Generator, a reliable and efficient power solution engineered for industrial and commercial applications. The YC6TD780-D31 series combines advanced technology with robust construction to deliver consistent performance, fuel efficiency, and environmental compliance. Whether you need standby power or a primary energy source, this generator is built to meet your demands with durability and precision.
Product Description
The YC6TD780-D31 series from Yuchai is designed for superior performance and longevity. Its high-strength alloy cast iron body and forged steel crankshaft enhance fatigue resistance and durability, while the one-cylinder-one-head structure simplifies maintenance. Featuring advanced turbocharged intercooler technology and an electronic control unit (ECU) with a high-pressure common rail system, this generator ensures optimal combustion, high power density, and low emissions. Available in a sleek blue/black finish, it’s as stylish as it is functional.
This generator is compact, lightweight, and powerful, making it an ideal choice for space-constrained installations. With a rigorous development process—including 20,000 hours of endurance testing—this unit guarantees reliability under the toughest conditions.
Features and Benefits
- Turbocharged Intercooler with Four-Valve Design: Ensures ample air intake and efficient combustion, reducing fuel consumption and operational costs.
- Electronic ECU Fuel System: Delivers precise fuel injection for smooth operation, excellent transient response, and strong load capacity.
- High Power Density: Provides maximum power in a compact, lightweight design, saving space and simplifying installation.
- Superior Cold Start Performance: Equipped with a dual-speed starter and electronic fuel injection for rapid, reliable starts in cold environments.
- High Parts Commonality: Standardized components and a one-cylinder-one-head design lower maintenance costs and downtime.
- Dual Energy Start Support: Offers flexible starting options for enhanced reliability.
- Emission Compliance: Meets China National III and European S3A standards, ensuring eco-friendly operation.
Control panel
Technical Specifications
| Specification |
Value |
| Standby Power |
500 KW |
| Prime Power |
450 KW |
| Dimensions |
3500 × 1100 × 1900 mm |
| Weight |
3500 kg |
| Speed |
1500 r/min |
| Fuel Consumption |
195 g/kW.h |
| Frequency |
50 Hz |
| Voltage |
400V / 230V |
| Engine Model |
YC6TD780-D31 |
| Engine Power |
520 KW (Prime), 572 KW (Max) |
| Cylinders |
6, Inline |
| Displacement |
19.6 L |
| Bore × Stroke |
152 × 180 mm |
| Compression Ratio |
14.0:1 |
| Oil Capacity |
55 L |
| Cooling System |
Closed water cooling |
| Starting Method |
DC24V electric start |
| Fuel System |
Electronic ECU / High-pressure common rail |
| Intake System |
Turbocharged, water-to-air intercooler |
Alternator Specifications
- Brand: Stamford
- Model: S5L1D-E4 / S5L1S-E4 / HCI544E
- Capacity: 610 KVA
- Insulation Class: H
- Protection Grade: IP23
- Power Factor: COSΦ = 0.8 (lagging)
Compliance and Certifications
The 500KW Yuchai Diesel Generator adheres to rigorous industry standards:
- ISO8528-2005 and GB/T2820-2009 for reciprocating internal combustion engine-driven AC generating sets.
- ISO9001 quality management system certification.
- Meets China National III and European S3A emission standards.
- Certified for noise, vibration, and exhaust compliance (Grade A).
- Complies with military (GJB 5785-2006), communication (YD/T 502-2007), and industry (JB/T 10303-2001) standards.
Warranty and Support
Yuchai offers a 1-year or 1000 running hours quality guarantee, covering the entire generator set—including the engine, alternator, and control system. With over 3000 service stations and 5000 parts sales outlets across the country, Yuchai ensures fast, dependable support and easy access to spare parts.
Environmental Requirements
For optimal performance, operate the generator under these conditions:
- Altitude: ≤1000m
- Fuel Standard: 0# light diesel
- Atmospheric Pressure: ≥89.9 kPa
- Oil Standard: CF grade / 15W-40
- Intake Temperature: ≤40℃
- Water Quality pH: 6.5–8
- Relative Humidity: ≤60%
- Surface Mold Grade: ≤GB/T2423.16/2 level
- Earthquake Resistance: Horizontal acceleration 0.2g, vertical 0.1g
Standard Configuration
The generator includes:
- Engine: YC6TD780-D31 diesel engine, diesel filter, air filter, oil filter, charger, starter motor.
- Alternator: Stamford generator, air switch.
- Control System: LCD digital display controller, electronic governor.
- Other Parts: Water tank radiator, steel base, vibration damping pad.
- Accessories: Muffler, battery, battery cable, engine oil, shockproof pad.
Contact Us
📧 Email: [ gmail@xn-gen.com]
📞 Phone: [+86 15216161715]
🌐 Website: [xn-gen.com]
Ready to power your operations with the 500KW Yuchai Diesel Generator? Contact us today to learn more about how this reliable industrial generator can meet your needs or to place your order. Choose your preferred color—blue or red—and experience the Yuchai difference!
Generator Maintenance and Servicing
At XN-GEN, we offer long-term maintenance agreements to provide professional, high-quality, and hassle-free service for our customers. Our maintenance services ensure the optimal performance and longevity of your generator set. Below is a general guideline for maintenance procedures (please note that specific actions may vary based on the model and operational status of each generator set).
Routine Maintenance
Regular inspections and upkeep are crucial to ensuring the reliability of your generator. The following checks should be performed regularly:
- Inspect all rotating components and tighten any loose bolts.
- Check the oil level in the crankcase and add oil if necessary.
- Monitor fuel levels in the tank.
- Inspect the coolant level in the radiator.
- Examine fuel and water pipelines for any leaks or loose connections.
- Ensure the intake and exhaust systems, along with cylinder gaskets, are properly sealed.
- Clean any oil stains or dust accumulation on the generator to maintain a tidy machine room.
Maintenance Plan for Standby Generators
(Recommended for backup generators used in residential communities, commercial buildings, hospitals, government facilities, tourist attractions, factories, and other locations where power outages are rare.)
Professional Maintenance (Every Six Months or Annually)
In addition to routine maintenance, a comprehensive service should be performed every six months or once a year:
- Conduct a thorough inspection of the fuel, electrical, cooling, and lubrication systems to ensure proper functionality.
- Perform a no-load test run for 5-10 minutes to lubricate the system. Assess the generator's performance using auditory, visual, and olfactory checks.
- Replace consumable filters, including air, diesel, oil, water, and fuel-water separators.
- Drain and replace coolant, ensuring proper radiator function.
- Check and replenish the battery electrolyte or distilled water as needed.
- After completing the maintenance, conduct a final inspection and clean the generator set.
- Perform another 5-10 minute no-load test, record performance parameters, and provide optimization recommendations before customer acceptance.
Maintenance Plan for Continuous Operation Generators
(Recommended for generators in construction sites, frequently power-outage-prone factories, areas with insufficient transformer capacity, project testing sites, or locations without access to the main grid.)
Level 1 Maintenance (Every 50-80 Hours)
This includes all routine maintenance tasks plus:
- Clean the air filter and replace it if necessary.
- Replace the diesel filter, air filter, and water filter.
- Inspect the tension of the drive belt and adjust if needed.
- Lubricate all grease fittings and moving components.
- Replace coolant to maintain effective cooling performance.
Level 2 Maintenance (Every 250-300 Hours)
Includes Level 1 maintenance tasks, with additional checks:
- Clean and inspect pistons, piston pins, cylinder liners, piston rings, and connecting rod bearings for wear.
- Examine the main bearing for any signs of looseness or abnormal wear.
- Remove scale and sediment from the cooling system to ensure proper heat dissipation.
- Clear carbon deposits from the combustion chamber and intake/exhaust passages.
- Inspect and adjust valve clearances, valve seats, push rods, and rocker arms.
- Clean turbocharger rotors and check bearings and impellers for wear, replacing if necessary.
- Tighten or replace any loosened or damaged bolts in the generator-diesel engine coupling.
Level 3 Maintenance (Every 500-1000 Hours)
Includes Level 1 and Level 2 maintenance tasks, along with additional services:
- Check and adjust the fuel injection timing.
- Clean the fuel tank to remove contaminants.
- Clean the oil sump to prevent sludge buildup.
- Inspect and test the fuel injectors for optimal atomization.
By following this structured maintenance plan, generator owners can ensure consistent performance, increased lifespan, and reduced risk of unexpected failures. Our expert team at XN-GEN is dedicated to delivering superior service to keep your power supply reliable at all times.
For more information or to schedule maintenance, contact us today!
1. Are you a factory or a trading company?
We are a factory specializing in the production of various types of generator sets. Our manufacturing facility ensures high-quality production and strict quality control.
2. What are your main markets?
Our products are widely exported to South America, the Middle East, Southeast Asia, and Africa, catering to diverse power needs across different industries.
3. How do you ensure product quality?
We implement strict quality control measures at every stage of production. Before delivery, all generator sets undergo load testing inside a shipping container to ensure optimal performance and reliability.
4. What is your warranty policy?
Our products come with an industry-standard warranty of one year or 1,000 operating hours (whichever comes first). We also provide technical support and spare parts services.
5. Can we customize the generator with our logo or design?
Yes! We offer custom branding for authorized logos and designs, allowing you to personalize the generator’s appearance according to your business needs.
6. What is your delivery time?
Our standard production and delivery time is within 15 working days, depending on order quantity and customization requirements.
7. How can I become your distributor?
We welcome partnerships with companies that have strong marketing resources and after-sales service capabilities. If you meet these criteria and are interested in collaborating, feel free to contact us for further discussions.
8. Do you provide after-sales support?
Yes! We offer technical assistance, spare parts supply, and remote troubleshooting to ensure seamless operation of our generator sets.
9: What is the payment terms you can accept?
- A: T/T, 30% deposit, 70% will be paid before delivery;
- or T/, 30% deposit, 70% L/C at sight;
- or 100% L/C at sight;
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