SC25G690D2 Shangchai Diesel Engine | 500kW Standby Power V12 EngineSpecs & Price

1. Core Technical Specifications

• Cylinder Configuration: 12 cylinders, V-type arrangement

• Bore x Stroke: 135mm x 150mm

• Total Displacement: 25.8L

• Compression Ratio: 16.5:1

• Rated Speed: 1500 rpm

• Standby Power: 505 kW

• Engine Net Weight: 2000 kg

2. Intake, Exhaust & Fuel System

• Aspiration: Exhaust gas turbocharged, air-to-water intercooled

• Fuel Injection: Direct injection

• Fuel Type: Domestic 0# light diesel oil

• Fuel Consumption Rate: Approx. 202 - 210 g/kW·h

• Governor Type: High-precision electronic governor

• Exhaust Smoke Opacity: ≤ 2

• Max Exhaust Gas Temperature: 650℃

• Max Allowable Back Pressure: 6 KPa

• Air Consumption: 33.1 m³/min

3. Lubrication & Cooling System

• Cooling System: Closed-loop water cooling

• Total Coolant Capacity: 151 L

• Recommended Oil Grade: WD/40 or API-CD grade and above

• Total Oil Capacity: 65 L

• Oil Consumption Rate: ≤ 0.4 g/kW·h

4. Starting & Electrical System

• Starting Method: 24V DC electric start

5. Key Product Advantages

• Upgraded Platform & Superior Performance: Evolved from the market-proven 12V135 platform, it inherits Shangchai’s legendary durability while delivering a significant boost in power density and fuel economy.

• Efficient Combustion & Eco-Friendly: Advanced exhaust turbocharging and air-to-water intercooling ensure optimal air intake and complete combustion, effectively reducing fuel consumption and exhaust smoke opacity.

• Electronic Control & Rapid Response: Equipped with a high-precision electronic governor, the engine ensures minimal voltage and frequency fluctuations during sudden load additions or drops, guaranteeing superior power supply quality.

• Compact Structure & Easy Maintenance: The V12 configuration offers a high power-to-weight ratio in a compact footprint. Optimized piping layout makes daily maintenance and component replacement highly convenient.

• Versatility & Wide Application: Whether serving as emergency standby power or continuous prime power, the SC25G690D2 is exceptionally capable, making it the golden standard power choice for 500kW-class diesel generator sets.