Our Induction Sealing Machines

Induction sealing is a critical component in packaging tamper-resistant containers and bottled products to make sure that the interior is protected from contaminants and increases its shelf life. Induction sealing is mandated by the FDA on certain products to meet health and safety standards, and depending on the industry that your company is part of, your products may need induction sealing particularly if they are pharmaceutical. Other reasons you may need your products sealed inductively to prevent the product inside from being stolen, or to increase the duration of the container itself by using this strong but lightweight technique.

Some reasons why induction sealing machines may be a better option for you than conduction sealing machinesĀ is that they don’t require as long a time to start up. Additionally, they will not cost as much in power usage. They can also be used to seal glass container products if done correctly, and in some cases metal caps though caution are highly recommended to make sure the machine does not overheat these caps. The key to effective induction sealing is making sure that the bond between the induction head and the cap is properly fitted, and if needed you can have your machine designed for capless sealing.

The process of induction sealing involves a laminate sealant attached to an aluminum foil liner that is heated by the electromagnetic current coming from the induction machine’s coil and then bonds to the container. These sealants can either be a single layer or a multi-layer liner. The single layer liners usually only have a one paper-backed foil that is bonded to the container with a polymer that is permanently opened once the product is ready to be used. In a multi-layer liner, an extra pulp liner that is attached initially to the foil liner, but it is then detached from that liner and then absorbed into the cap so that the cap can maintain a form of container resealing.

Induction sealing is best recommended for plastic containers and caps that have been turned onto the container just the right amount. Depending on your container size and line speed, you may decide to use either a flat headed coil or a tunnel head. You will want to center your containers properly and make sure the distance is optimal between the head and the container cap or lip.

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