♦ The 20-50KW WEICHAI diesel generator set (including 30KW, 40KW) features an original WEICHAI engine with direct injection combustion technology, offering low fuel consumption and high torque reserve. This WEICHAI diesel generator is suitable for small factories, farms, and telecom base stations.
♦ The unit adopts a high-strength cast body and integrated vibration damping design. The generator is equipped with an all-copper brushless excitation alternator, providing stable voltage and low maintenance costs. A soundproof enclosure is optional for reduced operating noise.
♦ A digital control panel displays real-time voltage, frequency, oil pressure, and coolant temperature, with automatic shutdown for low oil pressure, overload, and high temperature. This diesel generator supports optional ATS automatic transfer switching for auto-start on power failure and auto-stop on power restoration.
Product Description | WEICHAI-Diesel Generator Technical Parameters | |||||||
| Genset Model | AT-16GFW | AT-20GFW | AT-25GFW | AT-30GFW | AT-40GFW | AT-50GFW | |
| Genset Power | KW(=0.8KVA) | 16 | 20 | 25 | 30 | 40 | 50 |
| KVA(=1.25KW) | 20 | 25 | 31.25 | 37.5 | 50 | 62.5 | |
| Voltage | Single-phase (V) | 110V(L+N) 120V(L+N) 127V(L+N) 220V (L+N) 220/110V (L+L+N) 240/120V (L+L+N) | |||||
| Three-phase (V) | 208/120V 220/127V 240/139V 380/220V 400/230V 415/240V 440/254V 460/266V 480/277V | ||||||
| Frequency and Speed | 50Hz/1500RPM 60HZ/1800RPM | ||||||
| Alternator Brand | Stamford / Leroy-Somer / Marathon / Mecc Alte / ENGGA / KOHLER / Siemens / ABB / AOTEMU | ||||||
| Controller Brand | Deep Sea- DSE / ComAp / DEIF / SmartGen / Mebay | ||||||
| Fuel consumption | 100% Load (L/h) | 3.14 | 3.92 | 4.90 | 5.88 | 7.84 | 9.80 |
| 75% Load (L/h) | 2.35 | 2.94 | 3.68 | 4.41 | 5.88 | 7.35 | |
| 50% Load (L/h) | 1.57 | 1.96 | 2.45 | 2.94 | 3.92 | 4.90 | |
| Fuel Tank Capacity (L) | 100 | 100 | 100 | 100 | 100 | 100 | |
| Open Type (L*W*H) |
Demension(mm) | 1700*800*1250 | 1700*800*1250 | 1800*800*1300 | 1800*800*1300 | 1850*800*1300 | 1850*800*1300 |
| Weight(KG) | 700 | 750 | 750 | 800 | 800 | 820 | |
| Silent Type (L*W*H) |
Demension(mm) | 2200*1000*1400 | 2200*1000*1400 | 2200*1000*1400 | 2200*1000*1400 | 2200*1000*1400 | 2200*1000*1400 |
| Weight(KG) | 1100 | 1150 | 1150 | 1200 | 1200 | 1220 | |
| Custom Made | Remote Operation | Mobile APP(4G+WIFI) / Computer Software / Mobile APP(4G+WIFI) + Computer Software | |||||
| Connector Plug | Basic: Circuit Breaker; Optional: ATS, CEE Plugs, Twist Plugs, Sockets, Cam Locks..... | ||||||
| Color | Customized according to RAL international color chart: such as RAL 1000, RAL 2000, RAL 3001RAL 5000...... | ||||||
| Fuel tank | Basic: 8-10 hours; Optional: 200L, 300L, 400L, 500L, 600L......1000L | ||||||
| Trailer | 2-wheels trailer, 4-wheels trailer, standard trailer(25 km/h), high-speed trailer(80 km/h), high-speed trailer(110 km/h)... | ||||||
| Material | Cast iron, stainless steel, galvanized... | ||||||
Versatile Power Solution with Full Power Range Coverage
This 20KW, 30KW, 40KW and 50KW WEICHAI diesel generator features the most complete power coverage in the industry, spanning a full power range from 18kW to 5000kW. As a high-reliability diesel generator, it fully meets all-scenario power demands ranging from household standby power to data center backup and mining area main power supply. Supported by strong technical strength of WEICHAI, this WEICHAI diesel generator provides scalable power selection for engineering procurement, facility management and power backup planning, adapting perfectly to diversified application environments and load requirements.
Ultra-long Overhaul Service Life with High Lifecycle Return
Adopting the premium 20M61 series high-speed engine, this robust WEICHAI diesel generator achieves an overhaul service life of up to 15 years. Under long-term heavy-duty operating conditions, this diesel generator delivers outstanding durability and stable performance, bringing high economic return throughout the whole lifecycle. With mature manufacturing technology and rigorous quality control of WEICHAI, the WEICHAI diesel generator effectively reduces overhaul frequency and later investment cost, becoming a cost-effective and long-lasting power solution for industrial and commercial long-term operation.
Excellent Transient Response with No Flameout Under Sudden Loading
This high-performance WEICHAI diesel generator boasts superior transient loading capability, maintaining stable operation without flameout during 0-100% sudden load changes. It fully meets G3 grade transient response standards for data centers, effectively protecting critical electrical loads from impact damage. Optimized fuel supply and intelligent speed regulation system endow this diesel generator with fast load following and strong anti-fluctuation ability. Relying on the excellent dynamic performance of WEICHAI engine, the WEICHAI diesel generator ensures safe, stable and uninterrupted power supply for data centers, key facilities and high-precision production equipment.
FAQ Section
1. Q: How do I distinguish between primary power and standby power? What are the differences between selecting a main power unit for residential use and one for primary use?
A: When purchasing, it is crucial to strictly distinguish between primary power and standby power. Standby power should never be used as primary power for extended periods, as this will severely shorten the unit's lifespan. Standby power is suitable for emergency scenarios where it is only activated during grid outages. For main power supply selection (for continuous operation of more than 8 hours per day), it is recommended to reserve an additional 15-20% margin on top of the primary power to ensure stable output under long-term high-load conditions.
2. Q: What are Weichai's latest breakthroughs in the field of large generator sets?
A: At the Middle East Power Exhibition in April 2025, Weichai launched the 20M61 diesel land-based generator set, with a power output of 5MW (5000kW), a 15-year overhaul life, and employing high-pressure common rail fuel injection technology and a high-pressure ratio, low-inertia turbocharging system. It can achieve 0-100% load without stalling and meets China's Stage III non-road emission standards and the US EPA2 emission standards.
3. Q: What are the product series of Weichai marine generator sets? What is the power range?
A: Weichai marine generator sets are divided into main generator sets (16-8730kW) and emergency generator sets (30-900kW) according to their application. Main generator sets include Yangchai series, Deutz series, Steyr series, Blue Engine series, Baudouin series, WHM160/170 series, and CW200/250 series, with gas generator sets optional.
4. Q: What are the technical advantages of the M-series large-bore engines?
A: The M-series (16M55, 20M55, etc.) adopts a vermicular graphite cast iron grid structure cylinder block and cylinder head, ensuring high reliability; a 2200bar high-pressure common rail fuel system, providing good atomization and low fuel consumption; a high-precision filter + centrifugal rotor oil filter, with a filter element replacement cycle of up to 500 hours; observation windows on both sides of the engine block for convenient maintenance.
5. Q: Who is responsible for the maintenance service of Weichai large-bore generators?
A: Weichai Power explicitly states that its M-series large-bore engines are directly maintained and serviced by the company, ensuring service quality and original parts authenticity.
