How It Works: The Packaging Process
The operation of a vertical form-fill-seal (VFFS) candy packaging machine is a continuous, streamlined process:
-
Film Feeding: A roll of packaging material (such as cellophane, polypropylene, or metallized film) is mounted and fed through the machine's forming section.
-
Tube Formation: The film is drawn downward over a specially shaped "forming tube," which molds the flat sheet into a cylindrical shape around the product.
-
Vertical Sealing: The longitudinal edge of the film is heat-sealed to create a continuous, upright tube.
-
Product Loading: Candies are fed into the top of the forming tube via a volumetric cup filler, weigher, or auger system, descending into the film tube.
-
Cross Sealing & Cutting: As the product reaches the desired position, two horizontal sealing jaws close simultaneously. They perform a dual function: they seal the top of the finished package and the bottom of the next package, while also cutting to separate the two. This creates airtight, pillow-style pouches.
Key Components and Features
-
Form-Fill-Seal System: The heart of the machine, ensuring a seamless transition from film to finished pack.
-
Programmable Logic Controller (PLC): Allows for easy operation, parameter setting (like seal time/temperature), and quick changeovers for different candy sizes and shapes.
-
Precision Feeders: Ensure accurate and consistent product counts or weights into each package.
-
Print Registration Systems (Optional): Using photoelectric sensors, these align pre-printed film designs perfectly for a professional look.
-
Gas Flushing System (Optional): For sensitive candies, this system can inject nitrogen or other inert gases into the package before sealing to extend shelf life and prevent crushing.
Advantages of Vertical Packaging Machines
-
High Speed & Efficiency: Capable of producing hundreds of packs per minute, significantly outperforming manual packaging.
-
Space-Saving Design: Its vertical footprint is compact, ideal for factories with limited floor space.
-
Material Efficiency: Minimizes film waste compared to some pre-made pouch systems.
-
Versatility: Easily adaptable to various candy types, sizes, and packaging materials.
-
Hygiene & Consistency: Fully automated process reduces human contact, ensuring sanitary conditions and uniform, professional-quality seals for every single piece.
Applications in the Candy Industry
These machines are incredibly versatile and are used to package:
-
Individual Wrapping: Hard candies, caramels, chocolates, toffees.
-
Small Pouches: Gummy bears, jelly beans, licorice, candy-coated chocolates.
-
Functional Packaging: Breath mints, lozenges, and medicinal candies.
