Baudouin 6M31G3D3/5 vs Weichai 6M31D640E310
Compare Baudouin 6M31G3D3/5 and Weichai 6M31D640E310 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 18.5 L and 18.5 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.
| Specification | Baudouin 6M31G3D3/5 | Weichai 6M31D640E310 |
|---|---|---|
| Standby electrical (50 Hz) | 580 kWe | 580 kWe |
| Prime electrical (50 Hz) | 520 kWe | 520 kWe |
| Standby electrical (60 Hz) | Not listed | Not listed |
| Prime electrical (60 Hz) | Not listed | Not listed |
| Other recorded mechanical power (duty unspecified) | 640 kW | Not listed |
| Displacement | 18.5 L | 18.5 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | China III | China National Stage III / Unregulated |
| Dry weight | Not listed | Not listed |
| Origin | China | China |
Compare matching ratings
Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.
An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.
Baudouin 6M31G3D3/5: Review the model record and available supporting documents
Weichai 6M31D640E310: Weichai 6M31 generator-drive engine model table · checked 2026-09-29. Weichai lists these 18.5 L inline-six engines at 1,500 rpm. The electrical figures are the manufacturer’s recommended generator outputs, not measured results for every assembled package. Confirm the alternator, operating duty and site conditions for your set. kVA is calculated from kWe at 0.8 power factor. The cited table does not provide 1,800 rpm / 60 Hz ratings for these exact models. A missing rating means unverified, not that a 60 Hz configuration is impossible.
Choosing between Baudouin 6M31G3D3/5 and Weichai 6M31D640E310
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.