8 Key Factors to Consider When Purchasing a Small Diesel Generator

1. Power Requirements: Accurate Load Calculation

When selecting a small diesel generator, the first step is to accurately calculate your power needs. Typically, small diesel generators range from 3-20 kW. You should:

- List all equipment requiring power supply

- Calculate total running power (kW)

- Pay special attention to motor-driven equipment, considering starting power (usually 2-3 times running power)

- Recommend reserving 20-30% power margin for contingencies

2. Fuel Type: Diesel Selection and Storage

Diesel generators use diesel fuel, requiring consideration of:

- Local diesel availability and price fluctuations

- Fuel storage safety requirements (recommend using dedicated fuel tanks)

- Relationship between fuel tank capacity and continuous operation time

- Potential need for anti-freeze diesel in extreme cold environments

3. Noise Control: Compliance with Regulations

Noise levels are critical considerations:

- Standard industrial generators: 75-85 dB

- Silent models can maintain 60-70 dB

- Residential areas require special attention to local noise regulations

- Models with soundproof enclosures significantly reduce noise

4. Size and Weight: Ease of Transportation/Installation

Select appropriate dimensions based on usage scenario:

- Portable models typically lighter (50-200 kg)

- Fixed installations require proper foundation support

- Wheel-equipped designs facilitate mobility

- Ensure adequate space for operation and maintenance

5. Reliability: Brand and Quality Assurance

Choosing reputable brands is essential:

- Established brands (e.g., Cummins, Perkins) offer better quality assurance

- Check product MTBF (Mean Time Between Failures)

- Core component quality (engine, control systems)

- Reference user reviews and industry reputation

6. Budget Planning: Smart Investment

Develop a reasonable procurement budget:

- Entry-level: ~15,000-45,000 RMB

- Mid-range: 45,000-120,000 RMB

- Industrial-grade: 120,000+ RMB

- Consider TCO (including fuel, maintenance, etc.)

7. Environmental Performance: Emission Standards

Modern diesel generators' environmental features:

- Compliant with China III/IV emission standards

- Some high-end models meet Euro V standards

- Models with DPF (Diesel Particulate Filter) recommended

- Special attention to compliance in environmentally sensitive areas

8. After-Sales Service: Long-Term Support

Comprehensive service ensures long-term operation:

- Confirm warranty period (minimum 2 years recommended)

- Check for authorized service centers locally

- Availability of spare parts

- Technical support response time

Purchasing Recommendations

Before final decision, we recommend:

1. Physical inspection of different brands/models

2. Professional consultation for load calculation

3. Comparing multiple suppliers' quotes and services

4. Considering potential future power demand growthF 

For detailed purchasing guidance, please contact our technical consultants for professional selection advice and power calculation services.