50Hz Soundproof 20kW 25kVA Diesel Generator With Durable Weichai Engine
50Hz Soundproof 20kW 25kVA Diesel Generator With Durable Weichai Engine
The 50Hz Soundproof 20kW 25kVA Diesel Generator With Weichai Engine is designed to deliver reliable, quiet, and fuel-efficient power for both residential and commercial applications.
Powered by a durable Weichai 4-cylinder diesel engine, this generator provides 18kW (23kVA) prime power and 20kW (25kVA) standby power, ensuring consistent performance even in demanding environments.
With its compact soundproof design, efficient fuel system, and smart control panel, this Weichai-powered generator offers an ideal solution for backup or continuous operation where noise reduction and reliability are essential.
Key Features
- Low Noise Operation – The heavy-duty soundproof canopy keeps noise levels as low as 70dBA @ 7m, making it perfect for homes, offices, and small businesses.
- Smart Control System – Equipped with Deepsea DSE6120 controller featuring AMF (Automatic Mains Failure) and full protection for oil pressure, overload, and temperature.
- Durable Construction – Powder-coated steel canopy with stainless-steel hardware ensures long-lasting corrosion resistance for outdoor use.
- Long Runtime – Integrated base fuel tank provides 8 hours of continuous operation, with an easy-access drain system for maintenance.
- Alternator Options – Available with Stamford, Leroy Somer, Mecc Alte, or Hosem alternators to meet various customer preferences.
- Easy Installation & Maintenance – Wide-access canopy doors and organized internal wiring simplify routine servicing.
Specification of 50Hz Soundproof 20kW 25kVA Weichai Diesel Generator Set
| Generator Set Specification | ||
| Model | A-W25S | |
| Max. Power | kVA | 25 |
| kW | 20 | |
| Rate Power | kVA | 23 |
| kW | 18.4 | |
| Frequency | Hz | 50 |
| Rate Voltage | V | 400/230 |
| Rate Current | A | 33.2 |
| Fuel Tank Capacity | L | 8-hour fuel tank |
| Dimension For Open-type Genset | mm | 1650 X 700 X 1250 |
| Weight For Open-type Genset | kg | 625 |
| Dimension For Soundproof Genset | mm | 2000 X 900 X 1250 |
| Weight For Soundproof Generator | kg | 880 |
| Noise Level for Soundproof Generator at 7M | dBA | 70 |
| Battery | 45AH maintenance-free battery | |
| Engine Specification | ||
| Engine Manufacturer | Weichai Engine Co., Ltd. | |
| Engine Brand | Weichai | |
| Engine Model | WP2.3D25E200 | |
| No. of Cylinder | 4 Cylinders in Line | |
| Aspiration | Naturally aspirated | |
| Governor | Electric | |
| Engine Max. Output Power | kW | 25 |
| Displacement | L | 2.3 |
| Compression Ratio | 17.5:1 | |
| Starting Voltage | V | 12 |
| Bore | mm | 89 |
| Stroke | mm | 92 |
| Lubrication Oil Capacity | L | 8 |
| Intake Air Flow | M3/Min | N.A. |
| Fuel Consumption at 100% Load | L/H | N.A |
| Alternator Specification | ||
| Alternator Manufacturer | Fuzhou Hosem Power Co., Ltd. | |
| Alternator Model | ASF 184E | |
| Alternator Brand | Hosem | |
| Rate Output | kVA | 22 |
| Frequency | Hz | 50Hz |
| Altitude | M | ≤1000 |
| Insulation | Class H | |
| Phase | 3 Phase | |
| Working Temperature without power decrease | ≤40℃ | |
| Working Altitude without power decrease | ≤1000m | |
| Automatic Voltage Regulation | SX460 | |
| Protection Grade | IP23 | |
| Alternator for optional | Leroy Somer, Marathon, Mecc Alte and Hosem Brushless alternator for optional | |
| Control Panel Specification | ||
| Controller Brand | Deepsea | |
| Controller Model | DSE6120 | |
| Breaker Brand | Delixi | |
| Breaker Capacity (A) | 63 | |
| Battery Charger | Smartgen Model BAC06A | |
| Emergency Stop Button | Supply | |
| Automatic Mains Fail (AMF) | Supply | |
| Fuel Level | Supply | |
| Automatic Transfer Switch | ATS as optional part | |
| The control panel supply the full protection with alarm and shutdown of the diesel generator include Start-up fault (generator set shutdown), High coolant temperature (alarm and generator set shutdown), Low oil pressure (alarm and generator set shutdown), Low fuel level (alarm), Low cooling fluid level alarm (as optional), Overload (alarm and generator set shutdown), Battery voltage high (alarm). | ||
| Optional controller: Each model of Deepsea, Smartgen, ComAp brand controller. | ||
Applications
The 20kW 25kVA Weichai Diesel Generator is ideal for:
- Residential Backup Power – Stable, quiet operation for homes, villas, and small communities.
- Commercial Buildings – Reliable standby power for offices, schools, restaurants, and retail stores.
- Construction Sites – Compact and mobile energy source for light construction projects.
- Healthcare & IT Facilities – Ensures uninterrupted operation for medical equipment, data systems, and telecom networks.
- Agricultural & Rural Use – Efficient power supply for farms, irrigation systems, and off-grid locations.
Why Choose Hosem Power?
- 100% factory-built and fully load-tested to guarantee long-term reliability.
- Compact, easy-to-use design for quick installation and low maintenance.
- Global after-sales support and readily available spare parts.
- Customizable options for canopy color, control configuration, voltage, and frequency.
- Backed by ISO9001, CE, and ISO14001 certifications for global compliance and quality assurance.
FAQ – 20kW 25kVA Weichai Diesel Generator
Q1: Can you provide OEM or customized service?
A1: Yes. Hosem Power offers OEM & customization services including logo printing, canopy color, control panel configuration, and alternator options based on customer requirements.
Q2: What is the production or manufacturing date for the generators?
A2: All generators are newly manufactured upon order. The production date is clearly marked on the generator nameplate and within the product manual.
Q3: What is your warranty policy?
A3: We provide a one-year 1,000 working hours warranty. During the warranty period, if any quality issues occur, we supply replacement spare parts free of charge, and Hosem Power covers the courier cost for urgent parts shipment.
Q4: What are your payment terms?
A4: Typically 30% deposit by T/T before production and 70% balance before shipment. L/C at sight is also acceptable for large orders.
Q5: How long is the delivery time?
A5: Normally 30 days, depending on order quantity and customization requirements.
Q6: What generator types are available from Hosem Power?
A6: We supply open-type, soundproof, waterproof, and trailer-mounted diesel generators for various applications.
Contact Hosem Power
Looking for a quiet, efficient, and dependable power solution for your home or business?
The 50Hz Soundproof 20kW 25kVA Diesel Generator With Weichai Engine offers cost-effective energy, low noise, and proven Weichai reliability — your perfect choice for backup or continuous power.
Discover more Weichai-powered generators at Hosem Power Official Website
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.


