Common power supply 321KW Cummins high-efficiency power generation industrial diesel generator set

⚙️ I. Power Performance and Efficiency
Strong power and low fuel consumption

Adopting an inline 6-cylinder, four-stroke design with a displacement of 14L, a bore×stroke of 140×152mm (or 140×159mm), and a compression ratio of 14:1 (or 15:1), the maximum power is up to 321kW (standby power), and the usual power is 270-300kW.

Equipped with turbocharged intercooling technology (Turbo/Aftercooled) to enhance intake efficiency, fuel consumption rate as low as 201-206g/kW-h (full load condition), significantly better than similar products.

The electronic speed control system (EFC) ensures that the frequency fluctuation rate is ≤1.5% and the steady state frequency adjustment rate is ≤5%, adapting to the scenario of sudden load change.

Cold start and environmental adaptability

Supporting -15℃ cold start (with optional air intake electric preheating device), no power correction is needed when the altitude is ≤1000m; the power correction is only 4% for every 500m rise from 1000-3000m.

Suitable for 0# light diesel oil and CF grade engine oil (15W-40), working environment temperature ≤40℃, relative humidity ≤60%.

🛡️ II. Structure and Reliability
Durable design

Adopting forged steel crankshaft + wet cylinder liner, integrated design of cylinder block avoids oil and water leakage, the number of parts is 40% less than similar, and the failure rate is reduced.

Two cylinders, one cover + 4 valves per cylinder structure, enhance the efficiency of intake and exhaust, prolong the maintenance cycle.

Multi-protection system

The filtration system is equipped with dry air filter, rotary oil filter and anti-corrosion water filter to monitor the status in real time.

Lubrication system adopts variable flow oil pump to optimise oil pressure (35-50 PSI) and reduce power loss.

⚡ III. Power Output Characteristics
Stable power supply performance

Matching brushless self-excited generator (e.g. Stamford LSA47.2), AVR voltage regulation, steady state voltage adjustment rate ≤±1%, transient adjustment rate ≤-15%/+20%, waveform distortion ≤8%.

H-class insulation + IP22/23 protection, adapt to sand, dust, salt spray and other harsh environments, support 100% rated power instantaneous load input.

Intelligent control and expandability

Standard LCD Chinese liquid crystal controller, support for remote monitoring; optional ATS automatic switching cabinet, parallel system, to achieve multi-machine parallel connection or emergency power supply vehicle integration.

🌍 Fourth, application and environmental protection
Low noise and emission control

Open-frame noise ≤ 98dB (LP7m), quiet box type can be greatly reduced to less than 75dB.

Compliance with National III emission standards, optional exhaust gas purification project (such as oxidation catalyst method) to reduce particulate emissions.

Multi-scene Adaptation

Widely used in industrial and mining, hospitals, data centres, construction sites; supports a variety of installation forms such as fixed, mobile trailer, rainproof box.

🔧 V. Maintenance and Service
Low maintenance cost

Long maintenance cycle (grease replacement every 1000 hours), maintenance time saves 50% compared with similar.

National warranty 1 year or 1000 running hours, lifetime technical support.

📊 Key parameters overview
Parameter category Technical indicators
Engine model NTA855-G1B (inline 6-cylinder, four-stroke)
Displacement 14L
Rated speed 1500 rpm
Common power 250-300 kW
Standby power 275-321 kW
Fuel consumption rate 201-206 g/kW-h
Dimensions (L×W×H) 2950-3200×1000-1100×1700-2050 mm
Weight 2700-3100 kg
Protection class IP22/IP23 (generator)
💎 Summary
The NTA855-G1B is the preferred choice in the industrial power generation market due to its high reliability, low fuel consumption and flexible adaptability, especially suitable for long-term operation or harsh environments (e.g. plateau, high temperature). Its modular design and global service network (10,600+ certified outlets) further ensures lifecycle operational efficiency.