The machine in this article is a stretch film vacuum packaging machine. It uses forming dies and an automated line. Film replaces pre-made bags. The machine heats the film, forms a bottom cavity, fills product, vacuum seals, cuts, and outputs.
Packaging method: film forming replaces pre-made bags
Film heating and forming
A forming die heats the stretch film until it can be shaped. The die then presses the film into a bottom film cavity. This replaces pre-made bags and allows package shape changes.
Full-seal vacuum packaging
Product goes into the formed cavity. The machine pulls vacuum and seals the pack. The seal runs around the whole pack. Tear notches can be made in arc, zigzag, or other shapes. This balances seal strength and easy opening.
Automatic operation: six steps
The panel stores parameters. One start button runs the line.
Bottom film stretching
Roll film is pulled to set tension for flat forming.
Die forming
Heated film is pressed by the die into a cavity that matches the product.
Product loading
A robot arm or an operator places product into the formed cavity. The line handles multiple sizes.
Vacuum sealing
The cavity is sealed, air is removed, and a heat seal closes the top. This limits oxidation.
Finished pack cutting
Individual packs are cut to set size. Edges are clean.
Conveyor output
Packs move to the next step or packaging line for continuous production.
Functions for different products
Quick die change
Different dies handle products from snack packs to whole meat boxes. This reduces idle time.
Perforating option
For hanging food such as sausage and cheese, a punch unit makes standard holes at the top for shelf display.
Parameter storage
The panel stores groups of settings such as vacuum level and cut size. Product changeover takes less time.
Results
Output: automatic running is 10 to 50 times faster than hand packing. One line can reach several thousand packs per day.
Labor: less manual work cuts labor cost by about 60%. It also lowers packing defects from manual handling.
Market fit: full-seal packaging extends food shelf life. Tear notches improve opening. This supports higher-end product positioning.
Future
More sensors and AI algorithms may be added for real-time quality monitoring and adaptive adjustment.
Hansheng Automation machines replacement and custom parts for this equipment, including forming dies, cutting blades, and wear parts, from customer drawings for one-off and small-batch orders.
