Central production kitchens — facilities that prepare food for distribution to multiple satellite locations — operate on an industrial scale that makes standard restaurant ventilation systems inadequate. A single central kitchen may produce 20,000-100,000 meals daily, with cooking emissions proportionally scaled. The air purification system must match this industrial throughput.
| Parameter | Specification |
|---|---|
| Model | Heavy-duty Series / Heavy-duty Series / SPL-120 (for water spray pre-treatment) |
| Airflow | 8,000-18,000 m³/h per module; multiple modules in parallel |
| Operation | 16-22 hours/day, 6-7 days/week |
| Maintenance | Auto-cleaning ESP essential; manual cleaning impractical at scale |
| HACCP Compliance | Automated wash cycle logging; temperature monitoring; maintenance scheduling |
| Redundancy | N+1 configuration standard; hot-swappable modules for continuous operation |
Application Scenarios
- Airline catering facility (Hong Kong): A flight kitchen producing 80,000 meals daily for multiple airlines operates 20 hours/day with complex multi-cuisine cooking. The facility uses 8 Heavy-duty Series modules in a centralized exhaust system with auto-cleaning. The critical requirement: zero tolerance for system downtime — a single missed meal service could ground flights. The N+1 configuration means any module can be taken offline for maintenance without affecting overall system performance.
- Cook-chill hospital production kitchen (UK): An NHS trust central production unit cooking 15,000 patient meals daily for 5 hospitals uses Heavy-duty Series modules with comprehensive HACCP documentation. Every auto-clean cycle is logged with timestamp, water temperature, detergent concentration, and duration. The logs are reviewed during annual environmental health inspections and form part of the trust’s food safety management system. The facility has received “excellent” ratings in 3 consecutive inspections.
- Meal kit production facility (USA): A meal kit company producing 200,000 meal kits weekly operates multiple production lines simultaneously — meat, seafood, vegetarian, and allergen-free zones, each with different cooking requirements. Heavy-duty Series modules with zone-isolated ductwork prevent cross-contamination between zones. The ESP system is integrated with the facility’s production scheduling system — modules automatically activate based on which production lines are operating.
- School meal central kitchen (Japan): A city’s central school meal kitchen producing 25,000 lunches daily for 50 schools uses Heavy-duty Series modules with strict operational requirements. Japanese school lunch standards (shokuiku) mandate specific nutritional and quality standards; the ESP system ensures that cooking emissions from one preparation line do not affect the quality of food on adjacent lines. The facility is a model for other Japanese cities implementing central kitchen programs.
