Double‑Side UV‑C + Ozone Combination Sterilizer for 3D Food Packages

Double‑Side UV‑C + Ozone Combination Sterilizer for 3D Food Packages

Composition of Production Line
Heavy‑duty stainless steel frame with dual‑layer conveyors:
Adjustable infeed table → electrostatic pre‑cleaner → upper UV‑C lamp array + lower UV‑C lamp array (simultaneous top & bottom irradiation) → optional ozone injection zone (185nm lamps) → ozone catalytic decomposition unit → ionizing air knife → outfeed belt. Full safety interlocks and emergency pull‑cords, CE + UL compliant.

Product Description
This double‑side UV‑C + ozone combination sterilizer is the ultimate solution for surface disinfection of three‑dimensional food packaging such as trays, bowls, cups, clamshells, and pouches – both inside and outside. By placing UV‑C lamps above and below the conveyor, transparent or open packages receive simultaneous irradiation on all exposed surfaces. The optional 185nm lamps generate trace ozone (0–5 ppm), which penetrates microscopic shadows, crevices, and folds for unmatched microbial kill. Typical log reduction: >5 log for bacterial spores, >4 log for yeasts and molds. Ideal for high‑risk foods (raw poultry, seafood, ready‑to‑eat salads) and complex package geometries.

Technical Parameters
 
Parameter
Value / Range
Upper UV‑C lamps
4 – 12 pcs, 80W each, 254nm
Lower UV‑C lamps
4 – 12 pcs, 80W each, 254nm
Optional ozone lamps
2 – 6 pcs, 185nm (independently controlled)
Ozone concentration
0 – 5 ppm (adjustable, with real‑time sensor)
Effective belt width
400 / 600 / 900 / 1,200 mm (customizable)
Conveyor speed
0 – 18 m/min (inverter controlled)
Max product height
10 – 250 mm (tool‑less or motorized adjustment)
UV dose per side
30 – 250 mJ/cm² (PLC setpoint)
Total power
1.5 – 7 kW
Power supply
400V / 480V, 50/60Hz, 3P+N+E
Control
12" HMI with recipe management (up to 50 recipes)
Data recording
USB port, Ethernet for MES/SCADA integration
Safety
Door interlock + optional light curtain
Housing
SUS316L (acid‑resistant, food grade)
Application
Double‑side sterilization of transparent and semi‑transparent trays (meat, seafood, fruit)
Disinfection of clamshell containers for berries, cherry tomatoes, and salads
Internal & external surface treatment of vacuum pouches (raw meat, cheese)
Sterilization of reusable food containers (e.g., bento boxes) in central kitchens
Pet food flexible pouches
Customization
Fully customizable including: independent power control for upper/lower lamp banks, motorized conveyor height adjustment (for varying product thickness), ozone generator on/off with concentration alarm, belt type (Teflon mesh, chain drive, or roller), automatic flipping station for non‑transparent rigid packages, high‑pressure ionizing blower for dust removal, and multi‑language HMI (English, Spanish, Japanese, etc.). Customized UV dose recipes for different packaging materials can be pre‑programmed.

Feature
True double‑side irradiation – independent reflectors ensure uniform dose on top and bottom
Ozone assisted sterilization – reaches shadows and folds that UV light cannot directly hit
Catalytic ozone decomposition – outlet ozone <0.05 ppm, safe for operators
Safety interlock – any door opens → lamps & ozone instantly shut down with alarm
Lamp life management – cumulative timer, advance replacement reminder (30 days)
Energy saving – power reduces to 30% when no product detected
Easy cleaning – removable conveyor belt, splash‑proof lamp housings
Data integrity – optional FDA 21 CFR Part 11 compliant logging
Support and Services
Global authorized service centers (12 locations in North America, Europe, SE Asia)
Free remote initial setup (engineer online guidance)
3‑year warranty on core components (PLC, HMI, transformers)
Preventive maintenance package – biannual on‑site calibration, lamp replacement scheduling, ozone sensor verification
Emergency spare parts shipped within 24 hours
Packing and Shipping
Steel frame fixed inside industrial moisture‑proof foil + multi‑layer plywood case (heat treatment certificate provided)
Includes: full set of drawings, certificate of conformity, test report, CE/NRTL certificates
Shipping: 40ft HC container (2‑3 units) or knocked‑down for 20ft container
On‑site assembly and commissioning available (optional fee)
FAQ
Q1: Does ozone affect the taste of fatty foods like cheese or meat?
A1: Low‑level ozone (≤0.5 ppm) for short exposure does not cause off‑taste. For high‑fat products, we recommend turning off the ozone function and using only UV‑C. Our unit allows independent ozone on/off.
Q2: How do you prevent food debris from contaminating the lower lamps?
A2: Lower lamps are protected by a sloped quartz glass shield with compressed air purge. Daily end‑of‑shift wiping is sufficient. For wet/sticky products, a self‑cleaning belt brush can be customized.
Q3: Can this machine handle aluminum trays?
A3: Aluminum is non‑transparent. UV‑C only sterilizes the exposed top surface. For full inner surface disinfection, we recommend using the ozone function alone (gas penetrates inside) or a combination with a spray system. Please contact our engineering team for a feasibility test.
Q4: What is the minimum product height that can be processed?
A4: As low as 5mm (e.g., shallow trays). The conveyor belt gap can be adjusted down to zero. Standard range is 10–250mm; we can extend to 350mm upon customization.
Q5: Do you provide validation services for regulatory compliance?
A5: Yes, we partner with accredited labs to perform microbial challenge tests (e.g., Bacillus stearothermophilus). An English/Chinese validation report can be issued as part of a customization package.

 
All three models emphasize customizable design – from lamp count, belt width, control features to ozone options. For a detailed quotation or engineering drawing, please provide your packaging type, line speed, and target log reduction.