Can seaming process - reliable and efficient
Seaming refers to the process of curling and interlocking the edges of metal sheets. This precise mechanical process is essential in filling and sealing technology, ensuring that the lid or bottom of a can is firmly attached to the can body.
At the core of a can seamer is the seaming unit, which primarily consists of a round pressure plate, several chuck rollers, and seaming rolls.
Once the lid is positioned on the can, the can is lifted into the seaming head, where a pressure plate holds it in place as a counterforce to the lid. The can itself remains stationary throughout the entire process. Instead of rotating the can, a system of multiple chuck rollers and seaming rolls rotates around it. These tools work in pairs:
- The chuck rollers bend the edge of the lid around the can's flange.
- The seaming rolls then apply high pressure to interlock the folds tightly.
This multi-step process results in a strong and secure double seam, creating an airtight and liquid-tight seal that protects the product from external influences.
Optional Features for AMTEC Can Seamer
Our fully automatic can seamer can be equipped with additional modules to meet specific requirements.
One particularly beneficial feature is the vacuum function for canning. This technology allows the air to be removed from the can before seaming, with the option of replacing it with a protective gas mixture. This is especially useful for sensitive food products, as oxygen can accelerate oxidation and spoilage. By vacuum-sealing, product shelf life is extended, taste is preserved, and overall quality is maintained.
Applications of Can Seamers
Can seamers find applications in numerous industries. They are especially prevalent in the food and beverage industry, where they are used to seal cans of beverages like beer, soft drinks, and energy drinks, as well as food cans containing soups, vegetables, fish, and meat.
Moreover, these machines find application in the chemical sector for sealing aerosol spray containers, including paint cans. The cosmetics industry also takes advantage of this technology, employing seaming machines to tightly seal aerosol items like hairsprays post-filling.