Heavy-Duty 720kW Power – Engineered for Large-Scale Industrial Operations

When your industrial operations can't afford a moment of downtime, you need a generator that delivers uncompromising power and unwavering reliability. The EMEAN EM-W990 provides a solid 720kW (900kVA) of prime power, backed by an 820kW WEICHAI 12M26D902E200 turbocharged and aftercooled diesel engine. Whether you're powering a manufacturing plant, a data center, a hospital, or a large commercial facility, this is the industrial size generators solution that keeps your critical systems running when you need them most.

The EM-W990 is more than just another industrial size generators unit—it is a purpose-built power system engineered to withstand the demands of heavy industrial environments. With a standby rating of 792kW (990kVA), this industrial size generators solution provides ample headroom for starting heavy equipment with high inrush currents and handling sudden load surges. The generator operates at 1500 RPM (50Hz) with a fuel consumption of just 202.59 L/h, making it a cost-effective choice for extended backup power.

Powered by WEICHAI – The 31.8L V12 Powerhouse

At the heart of this industrial size generators solution lies the WEICHAI 12M26D902E200, a 12-cylinder, 31.8-liter V-type turbocharged and aftercooled diesel engine. With a bore and stroke of 150×150 mm and a compression ratio of 15.7:1, this massive-displacement V12 platform delivers exceptional torque and thermal efficiency for the most demanding industrial applications.

The engine draws 4,497 kg/h of air at rated conditions and 4,786 kg/h at standby, ensuring complete combustion and reduced emissions. The intercooling system efficiently reduces intake air temperatures, enabling higher power output, cleaner combustion, and more stable operation even under heavy load. At rated conditions, the intercooler reduces intake air temperature to just 52.2°C.

What truly sets this engine apart is its substantial oil capacity of 78L (low) to 109L (high) with an oil consumption ratio of just 0.3% of fuel consumption, designed for extended service intervals that minimize downtime. The engine maintains oil pressure between 400–600 kPa at rated speed, with low-pressure protection at 200 kPa (alarm) and 160 kPa (shutdown) to safeguard the engine from damage.

Built to Start When You Need It Most

An industrial size generators solution is only as good as its ability to start when you need it most. The 12M26D902E200 starts reliably down to 0°C without auxiliary starting devices, and with a preheater, it operates confidently down to -10°C. This cold-start capability makes the EM-W990 a practical choice for installations across North America and Europe, where winter storms can knock out the power grid for days.

The 24V starting circuit is engineered with robust components: a 10kW starter motor and 55A battery charging alternator provide ample starting power that you can count on every time. The starting circuit features a maximum resistance of just 8 mΩ and uses 90 mm² wiring, ensuring reliable current delivery to the starter even in the coldest conditions.

Engineered for Quiet, Efficient Operation

The EM-W990 features a soundproof canopy lined with sound-reducing foam, making it an industrial size generators solution that respects both industrial and urban environments. The industrial silencer and modular ventilation design further reduce noise levels, while all-metal canopy parts are powder-coated for durability and corrosion resistance.

The engine's thermal management is equally impressive. The closed-loop water cooling system is rated for operation up to 50°C ambient temperature, with a thermostat that begins opening at 77°C and reaches full opening at 87°C. The system holds 83L of coolant—ensuring stable operating temperatures even during extended run times. At rated conditions, total heat dissipation reaches 1,931.6 kJ/s, with the cooling system removing 269.2 kJ/s of heat while the exhaust carries away 570.1 kJ/s.

Complete Generator Set Features

The EM-W990 generator set is built around the WEICHAI engine and features a VG-404D brushless alternator with Class H insulation and IP23 protection. The alternator is available from leading brands including Stamford, Leroy-Somer, or Marathon, giving businesses flexibility in their specification. The digital control panel (Smartgen or Deep Sea) includes auto-protection features such as overcurrent shutdown and low oil pressure alarm.

Key features of the complete generator set include:

Base frame fuel tank with customizable capacity for 8–10 hours of continuous runtime

Digital control panel with automatic protection and monitoring

Soundproof canopy lined with sound-reducing foam for quiet operation

MCCB air circuit breaker for overcurrent shutdown protection

Industrial silencer for silent-type generator sets

5mm thickened bent chassis with double-layer anti-corrosion painting

Forklift hooks and crane holes for easy installation and relocation

External emergency stop button for safety compliance

Steel chassis with anti-vibration pads to minimize transmitted vibration

Lockable doors on front and back for easy maintenance access

Glass panel window for visual inspection of the control panel

Optional ATS (Automatic Transfer Switch) for seamless power transition

Optional remote control, jacket heater, and oil heater for enhanced functionality