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1. Top Seal
Top seal packaging seals a film directly onto the tray rim without vacuum or gas replacement. It is one of the most widely used tray sealing methods due to its simplicity and cost efficiency.
2. Modified Atmosphere Packaging (MAP)
Modified Atmosphere Packaging replaces the air inside the tray with a controlled gas mixture before sealing. This slows oxidation and bacterial growth, helping extend shelf life while preserving product quality.
3. Vacuum Skin Packaging (VSP)
Vacuum Skin Packaging draws a heated skin film tightly over the product and seals it to the tray under vacuum, eliminating air pockets and securing product position.
4. Unifresh® VSP
Unifresh® is Utien Pack’s proprietary VSP technology that supports controlled product protrusion while maintaining a secure seal. By tightly conforming the skin film to the product, Unifresh® enhances product visibility and presentation, making it ideal for premium food packaging applications.
Automatic Continuous Tray Sealer FSC-400
FSC-400
- The FSC-400 Continuous Tray Sealer Machine can meet the packaging needs of large-scale production. With a professionally designed tray feeding mechanism, it can run continuously, significantly enhancing packaging efficiency. Based on varying packaging requirements, multiple sets of mold is optional for different products. Utien offers comprehensive and specialized packaging solutions tailored to client specifications.
- Machine dimension(mm): 3410×1121×1857
- 10-12 times/min sealing speed
- Power(kW): 15
- 4 trays per cycle
- Transparent top film, pre-printed top film
- Automatic sealing and cutting (MAP / Skin Pack)
- Applied to trays of various shapes and sizes
Automatic Continuous Tray Sealer FSC-600
FSC-600
- The FSC-600 Automatic Continuous Tray Sealer is tailored for large production environments, capable of sealing 6 trays per cycle, significantly increasing productivity. It features an advanced tray feeding system for continuous operation, making it ideal for businesses with high-volume packaging demands.
- Machine dimension(mm): 4210×1172×1792
- 10-12 times/min sealing speed
- 6 trays per cycle
- Auto tray feeding mechanism
- Transparent top film, pre-printed top film
- Power(kW): 18
- Applied to trays of various shapes and sizes
Semi-Auto Tray Sealers | FG 040 Series
FG-040
- Our semi automatic tray sealers FG-040 are designed to pack and seal prefabricated trays and are the perfect solution for small and medium-sized batch, efficient and economical packaging. Also it’s an ideal entry-level devices for tray packaging. With MAP and VSP packaging option, this equipment is able to cover various top films onto trays of different materials.
- 2-3 times/min sealing speed.
- Attractive package with top VSP (UniFresh ®) technology.
- With top Busch vacuum, we can make residual oxygen lower than 1%.
- Applied to trays of various shapes and sizes.
- Anodized aluminum mold with drawer-type design.
- Small size and low power consumption.
Food Packaging
Tray sealing solutions are widely used for fresh food, processed food, and convenience products where producers manage multiple SKU's, frequent tray changes, or seasonal production demands.
Meat Packing
Tray sealers enable hygienic meat packaging with options for top seal, MAP, and vacuum skin packaging. This allows processors to control shelf life, maintain color stability, and deliver consistent retail presentation across multiple tray sizes.
Ready Meal Packing
For chilled and prepared meals, tray sealers support portion control, clean sealing, and compatibility with microwaveable and paperboard trays. This makes them ideal for convenience food producers balancing efficiency, shelf life, and sustainability.
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