Dependable 16kW Power for Homes, Farms, and Small Business Backup

When utility power fails, you need a generator you can trust to keep your operations running. The EMEAN EM-W22 delivers a solid 16kW (20kVA) of prime power with a robust 27kW WEICHAI WP2.3D30E201 diesel engine at its core. Whether you are looking for emergency backup for your home, a reliable power source for your farm, or standby protection for a small retail shop, this 220 generators solution is built to perform when it matters most.

The EM-W22 is more than just another entry in the 220 generators market—it is a thoughtfully engineered power system that combines proven diesel technology with modern control features. With a standby rating of 17.6kW (22kVA), this unit provides ample headroom for starting motors and handling temporary load surges. The generator operates at 1800 RPM (60Hz) with a fuel consumption of just 4.4 L/h at full load, making it one of the more fuel-efficient options in its class.

Engineered for Real-World Conditions

The WEICHAI WP2.3D30E201 is a 4-cylinder, 2.3-liter naturally aspirated diesel engine with an L-type cylinder arrangement and a compression ratio of 17.5:1. This engine architecture is known for its mechanical simplicity and proven reliability—fewer complex systems mean fewer potential failure points. The closed-loop forced water cooling system maintains optimal operating temperatures even under continuous load, with coolant flow of 3.9 m³/h at rated conditions and carefully managed heat dissipation.

What sets this 220 generators unit apart is its attention to thermal management. The engine’s heat balance data shows that at rated working conditions, the cooling system effectively removes 20.0 kJ/s of heat, while the exhaust carries away 22.3 kJ/s. This efficient thermal design ensures the engine maintains stable operating temperatures even during extended run times, contributing directly to long-term reliability.

Built to Start When You Need It Most

Cold weather starting is a common concern for diesel generator owners in northern climates. The WP2.3D30E201 is rated for cold starts down to 5°C without auxiliary starting devices, and with a preheater, it starts reliably down to -15°C. This capability makes the EM-W22 a practical choice for installations across North America and Europe, where winter temperatures can pose significant challenges for diesel equipment.

The engine’s electrical system features a 12V negative-ground configuration with a 3kW starter motor and a 35A battery charging alternator. The starting circuit is designed with a maximum resistance of just 4 mΩ and uses 50 mm² wiring, ensuring ample current delivery to the starter even in cold conditions.

Technical Highlights from the Engine Datasheet

The WP2.3D30E201 engine offers several standout specifications that directly benefit end users:

Mean effective pressure: 0.95 MPa, indicating strong torque characteristics and efficient power delivery

Mean piston speed: 4.6 m/s, a conservative figure that promotes long engine life by reducing wear on cylinder walls and piston rings

Oil capacity: 5.3L (low) to 8L (high) with an oil consumption ratio of just 0.4% of fuel consumption—meaning less frequent top-ups and lower operating costs

Oil pressure range: 200–500 kPa at rated speed, with a low-pressure alarm at 80 kPa to protect the engine from damage

Maximum exhaust back pressure: 8 kPa, allowing for flexible exhaust routing without compromising performance

Maximum exhaust temperature: 650°C, indicating robust thermal design

These engineering choices reflect a design philosophy that prioritizes reliability and longevity—making this a 220 generators choice for users who value predictable performance and straightforward maintenance.

Complete Generator Set Features

The EM-W22 generator set is built around the WEICHAI engine and features a brushless alternator with Class H insulation and an automatic voltage regulator (AVR). The alternator is available from leading brands including Stamford, Leroy-Somer, or Marathon, giving customers flexibility in their specification. The IP23 protection rating ensures the alternator is protected against solid objects and dripping water, suitable for most indoor and protected outdoor installations.

Key features of the complete generator set include:

Base frame fuel tank supporting 8–10 hours of continuous runtime

Digital control panel (Smartgen or Deep Sea) with auto-protection features including overcurrent shutdown and low oil pressure alarm

Soundproof canopy lined with sound-reducing foam for quieter operation

5mm thickened bent chassis with double-layer anti-corrosion painting for extended service life

Forklift pockets and crane lifting holes for easy installation and relocation

External emergency stop button for safety compliance

Steel chassis with anti-vibration pads to minimize transmitted vibration