What Is Vacuum Packaging Machinery?
Vacuum packaging machinery is a device designed to remove air from airtight bags, typically made of plastic film, creating a vacuum. This process extends the shelf life of perishable goods by preventing oxidation and spoilage.
These machines come in tabletop and stationary models, catering to different space and budget requirements.
Applications of Vacuum Packaging Machinery
Used across the food industry, vacuum packaging machinery plays a crucial role in preserving food quality, enhancing storage efficiency, and maintaining hygiene. It’s employed by food factories, restaurants, and supermarkets to streamline food storage and improve operational hygiene.
Principle of Vacuum Packaging Machinery
Vacuum packaging machinery operates on the principle of removing air to prevent spoilage and microbial growth. Impulse sealing is often used to seal the packages thermally. There are two primary types of machines: nozzle and chamber, each supporting various packaging techniques including vacuum, degassing, and gas displacement packaging.
1. Nozzle Type
Uses a nozzle to suck the air out of the bag, ensuring tight contact between the bag and its contents.
2. Chamber Type
Places food-filled bags in a vacuum chamber to remove air from the entire container.
Types of Vacuum Packaging Machinery
These machines are categorized into commercial and household models, with commercial units offering broader capabilities, including liquid packaging and household units being more limited in scope and compatible bag types.
How to Choose Vacuum Packaging Machinery
Selection should be based on intended use, considering factors like space availability, the types of products to be packaged, and specific requirements such as liquid packaging capability or the need for compact equipment.