1. Ventilated Container
Ventilated containers feature two rows of ventilation openings—upper and lower—on the side walls, utilizing natural convection for air circulation to prevent cargo from molding or spontaneous heating.
| Parameter | 20ft Ventilated (20VT) | 40ft Ventilated (40VT) |
| External Dimensions | 6,058 × 2,438 × 2,591 mm | 12,192 × 2,438 × 2,591 mm |
| Internal Dimensions | 5,898 × 2,330 × 2,391 mm | 12,032 × 2,330 × 2,391 mm |
| Volume | 32.8 CBM | 67.0 CBM |
| Max Payload | 28,200 kg | 28,800 kg |
| Ventilation Type | Natural convection (unpowered) | Natural convection |
| Ventilation Openings | 8–12 each, top and bottom | 12–16 each, top and bottom |
| Ventilation Area | ~400 cm² | ~600 cm² |
Suitable Cargo: Coffee beans, cocoa, onions, garlic, grains, tobacco, dried fruits, seeds.
Difference from Dry Van Containers: Theoretically, dry van containers can also carry organic cargo, but the lack of effective ventilation can easily lead to mold. Using a ventilated container significantly reduces the risk of cargo damage and is the preferred solution for organic cargo transport.
2. Bulk Container (Bulktainer)
Bulk containers are designed specifically for transporting bulk solid cargo, with loading hatches on the roof and discharge openings at the door end.
| Feature | Description |
| Top Opening | Square loading hatch (approx. 500 × 600 mm) for filling |
| Bottom / Door Opening | Discharge port or detachable door bars |
| Internal Liner | Optional plastic liner bag (suitable for food-grade bulk cargo) |
| Suitable Cargo | Grains, minerals, fertilizers, plastic granules |
Bulk Container vs. Dry Van for Bulk Cargo:
- Bulk Container: No packaging bags needed, direct filling, fast discharge
- Standard Dry Van: Requires bagging or large liner bags, low discharge efficiency
The market availability of bulk containers is limited; booking 1–2 weeks in advance is required.
Data Note: Ventilated container parameters are cited from ISO 668:2020 standards. Bulk container operations follow general industry practices. Data current as of July 2026.
Need container type recommendations for specialized cargo? Contact us for professional advice.
Container Consultation: info@zhbfwl.com
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