Jichai JC30D1 vs VMAN D30B2
The Jichai JC30D1 and VMAN D30B2 are both diesel generator engines in a similar power class. Both are rated at roughly 1,075 kVA. Displacement is 30.5 L versus 29.235 L. The table below compares their full specifications side by side.
| Specification | Jichai JC30D1 | VMAN D30B2 |
|---|---|---|
| Headline rating | 1,063 kVA | 1,086 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 850 kWe | — |
| Standby (60 Hz) | — | 869 kWe |
| Prime (60 Hz) | — | 792 kWe |
| Displacement | 30.5 L | 29.235 L |
| Configuration | V12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China III (GB20891) | Unregulated |
| Dry weight | 12000 kg | — |
| Origin | China | China |
Choosing between Jichai JC30D1 and VMAN D30B2
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. The VMAN D30B2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.