What You Should Know about the Workings of a Can Seamer so You can Make the Best Choice

What You Should Know about the Workings of a Can Seamer so You can Make the Best Choice

Can seamers are now an established part of the food and beverage production process, and many companies have already been utilising their benefits for years. With a proper can seaming machine, you can have a faster and more efficient production process, and you can be sure that your products will be correctly sealed and will be free from leaks and contamination as well. But there are different kinds of can seaming machines and the can seamer works in a particular way, so if you are trying to decide what kind of can seaming machine to select for your business, it pays to know how the machine actually works. This way, you can make a more informed decision and a better investment in the end. Here, then, is what you should know about the workings of a can seamer so you can make the best choice.

The basics of how it works

A can seaming machine typically performs the process of double seaming, which produces the most reliable and tight seams for tins and ensures that you can avoid leaks and tampering. The machine’s double seaming process works like this: the machine will attach the lid or end of the tin to the body using three phases: the first through compression, the second through the first roller operation, and the third through the 2nd roller operation. Of course, prior to the seaming process, you need to fill your containers with your product first, as confirmed by renowned can seaming machine suppliers and producers like Pneumatic Scale Angelus.


  1. The compression stage

The compression stage or phase will provide the necessary force to hold the body of the can against the chuck or seamer head, which grips the lid and ensures that it is in the proper place for the attachment of the body later on. The turntable then pushes the body of the can upwards to the chuck or seamer head. If your seaming machine has a vacuum feature, the oxygen in the tin will be vacuumed or removed first before the process of seaming begins. Once the lid is placed on the top of the tin’s body, the process is initiated, and this locks the lid onto the flanges of the tin’s body so it forms a hook. This interlocking procedure is done with the use of two roller operations.

  1. The first operation

The first operation is critical because the hook, which has resulted from the interlocking procedure, will have an impact on the final integrity of the double seam. With the process, the first roller of the machine will push the lid’s flange, causing it to turn around the body of the tin’s flange. The flange of the can will then follow whilst the roller moves towards the seamer head or chuck. With this, the flange of the lid is then interlocked with the body of the tin’s flange, but the seam is still loose at this point.

  1. The second operation

The second operation starts once the second roller is used, and it irons out and flattens the loose seam from the first operation. With this, you can have a seal that is leak-proof due to the lid’s compression and the interlocked flanges of the tin’s body and the lid. The machine will then squeeze the sealing compound to the open areas or spaces that are left on the double seam, and this completes the hermetic sealing of the tin.


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