Industrial Silent Diesel Generator Solutions
High-performance 400kW, 500kW, and 1000kW silent diesel generator sets designed for industrial applications requiring continuous operation with minimal noise disruption.
Key Features
- Heavy-duty steel canopy with high-density sound-absorbing materials for quiet operation
- Integrated bottom fuel tank with automatic start controller for instant power backup
- 8-hour continuous runtime at 75% load capacity
- Premium engine options: Doosan, Baudouin, WEICHAI, YUCHAI, SDEC, or YANGDONG
- Global warranty and comprehensive after-sales support
Our DP158LD model delivers reliable power for industrial and commercial applications with customizable power options to meet specific requirements.
Technical Specifications
Power Ratings
| General Information |
Prime Power |
Standby Power |
| Rated Power (kVA) |
500 |
550 |
| Power Rating (kW) |
400 |
440 |
| Frequency (Hz) |
50 |
| Engine Model |
DP158LD |
| Engine Speed (RPM) |
1500 |
| Phase |
3 |
| PF |
0.8 |
| Control System |
Digital |
| Rated Voltage (V) |
400/230 (According to customer requirements) |
| Fuel Tank Capacity Operating Time |
≥ 8h @ 75% load |
PRP (Prime Power): Available for unlimited annual hours in variable load applications according to GB/T2820-97 standards. Includes 10% overload capability for 1 hour within 12-hour operation.
ESP (Standby Power): Applicable for supplying emergency power during utility power interruptions. No overload, utility parallel, or negotiated outage operation capability available at this rating.
Dimensions and Weight
| Model |
BDO550 (Open Type) |
BDO550S (Silent Type) |
| Length (L) mm |
3600 |
4500 |
| Width (W) mm |
1500 |
1810 |
| Height (H) mm |
2460 |
2360 |
| Tank Capacity (L) |
920 |
920 |
Engine Specifications
| Specification |
Details |
| Engine Model & Manufacturer |
DP158LD (DOOSAN) |
| Engine Type |
Diesel, water cooled, Turbo charged & intercooled |
| Bore x Stroke |
128 × 142mm |
| Displacement |
14.6 liters |
| Cylinders and Arrangement |
Cast iron, 8 cylinder, Vee-Type |
| Battery Charging Alternator |
27.5V x 45A alternator |
| Starting Voltage |
24V |
| Fuel System |
Mechanical Injection Pump |
| Fuel Filter |
Full flow, cartridge type with water drain valve |
| Lube Oil Filter Type |
Full flow, cartridge type |
| Lube Oil Capacity |
Max. 22 liters, Min. 13 liters |
| Flywheel Dimensions |
Clutch No. 14 M |
| Dry Weight |
1155kg (engine only) |
| Dimension (LxWxH) |
1274 × 1138 × 1207 mm |
Alternator Specifications
| Specification |
Details |
| Alternator Brand |
BOBIG |
| Alternator Manufacturer |
FUJIAN BOBIG ELECTRIC MACHINERY CO.,LTD |
| Alternator Model |
BW-354D |
| Alternator Rated Power |
400kw/500kva |
| Rated Voltage (V) |
230v/400v |
| Rated Frequency |
50hz |
| Connecting Type |
3 Phase and 4 W |
| Number of Bearing |
1 |
| Protection Grade |
IP23 |
| Altitude |
≤1000m |
| Exciter Type |
Brushless, Self-exciting, AVR automatic voltage regulating, 100% Copper |
| Insulation Class |
H class |
| Telephone Influence Factor (TIF) |
≤50 |
| THF |
≤2% |
| Voltage Regulation, Steady State |
≤±1% |
| Transient State Voltage |
≤-15%～+20% |
Manufacturer Profile
Established in 2004, Fujian Bobig Electric Machinery Co., Ltd. specializes in technological research, production, and sales of electrical machinery. Operating from a 10,000 square meter facility with 160 employees including 20 technicians.
Product Range
Comprehensive product line including air-cooled gasoline generators, air-cooled diesel generators, air-cooled welding & generating sets, and water-cooled diesel generator sets. Known for reliable quality in small air-cooled brushless generators and welding sets.
Quality Commitment
Adhering to "Quality, Creation, Service and Development" principles with continuous technology updates and quality improvements. Advanced testing equipment includes CAD systems, automated assembly equipment, and digital testing systems. ISO9000 Quality System Certified.
International Trade Experience
The 139th Canton Fair April 2026
The 137th Canton Fair April 2025
After Sales Services
- Customized manufacturing solutions
- Comprehensive quality control
- International logistics management
- Documentation and certification support
- Trade support services
- After-sales technical assistance
- Customer training programs
- Market support initiatives
- Technical collaboration opportunities
Frequently Asked Questions
Are you a manufacturer or a trading company?
We are a professional manufacturer with our own factory located in Fujian, China. We welcome facility visits to observe our quality control processes firsthand.
What is the minimum order quantity (MOQ)?
Standard MOQ is 1 set. We offer flexible terms for volume orders and provide competitive pricing for larger projects.
What is the delivery time after order confirmation?
Production time varies by quantity and inventory status. Standard models typically require 20-30 days. We provide precise timelines upon order confirmation.
What payment terms do you offer?
We commonly accept T/T with 30% deposit and 70% balance before shipment. For established relationships, we can discuss alternative terms including L/C.
Do you perform factory inspection before shipment?
Yes, every unit undergoes thorough testing and inspection in our factory before shipment to ensure quality and performance standards.
