The national standard for prepared foods (pre-cooked dishes), implemented in December 2025, introduces quantifiable testing requirements for packaging seal integrity — the leakage rate for vacuum packaging must be below 0.5%. This imposes significantly higher standards on equipment maintenance and servicing.
## Maintenance Upgrades Under the New Standard
### Seal Integrity Testing
The traditional "squeeze method" (manually pressing the package to check for air leaks) no longer meets the requirements of the new national standard. Starting in 2026, facilities must be equipped with vacuum decay testers to perform regular inspections of packaging seal integrity.
### Key Component Maintenance Cycles
**Vacuum Pump** (Core Component):
- Pump oil replacement: every 500 operating hours (brand-specific oil recommended)
- Oil mist filter replacement: every 1,000 hours
- Exhaust valve plate inspection: every 2,000 hours
**Sealing System**:
- Seal bar replacement: every 3 months (wear degrades seal quality)
- PTFE (Teflon) tape replacement: every 1-3 months, depending on usage frequency
- Pressure cylinder seal ring inspection: annually
## Shunxiang Central Kitchen Vacuum Packaging Machine Maintenance Plans
Shunxiang Central Kitchen offers **full-machine extended warranty services** and **scheduled inspection programs**:
1. **Basic Plan**: Quarterly inspection + fault response (¥3,000/year)
2. **Standard Plan**: Monthly inspection + consumable parts replacement (¥6,000/year)
3. **Premium Plan**: On-site maintenance + full coverage (¥12,000/year)
> Packaging Equipment Hotline: 185-2101-3919
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