In the world of shrink wrapping, there is a wide selection of machineries available in different speeds and sizes. Prices differ according to operation and features. Manual shrink wrapping systems are obviously cheaper than fully integrated shrink wrapping systems. The variety of the shrink wrapping machine becomes even more complex when it is incorporated with integrated tray erectors and loaders. Here are the major shrink wrap machine types:

 

Transit shrink wrap machine

Transit shrink wrapping machines are typically used for products arranged together in a cardboard tray such as jars and cans. In this case, the shrink wrap holds the products together. The simplest manual transit shrink wrap machine has two reels of film and a straight line sealing jaw. You simply push the product through the film, and then bring down the sealing jaw by hand to cut the film and seal the product. Heat is then applied with either a heat gun or a shrink tunnel, shrinking the polyethylene film around the product. There are also semi-automatic and fully automatic transit wrap machines.

L-seal shrink wrap machine

There are five types of the L-seal style wrapping machine: the chamber, manual L-seal, semi-automatic, fully automatic L-sealer, and the fully automatic side sealer.

The chamber is an all in one L-seal machine, where you can have the product pushed into the film, seal it, and then heat it, shrinking the film. When you remove the wrapped product, another can be loaded to the hood.

The manual L-seal provides greater versatility compared to the chamber type, but it can take up more space. You need to bring down the L bar manually with your hand. Then, while the next product is wrapped, the finished one is manually heated by a heat gun or transferred into the heat shrink tunnel.

With the semi-automatic machine, the sealing head comes down at the press of the button. Then, a conveyor moves the wrapped product automatically into the heat shrink tunnel.

With fully automatic L-sealer, a conveyor belt takes the products automatically from a production line. The blade and sealing unit work automatically as well. The wrapped products are also transferred automatically via a conveyor belt into the heat shrink tunnel.

The fully automatic side sealer has a cutting blade with a continuous motion, which forms the long side of the L-seal, and another blade forms the short side of the L. This enables long products to be wrapped without requiring a bigger machine.

 

Flow wrap machine

This type of shrink wrapping machine is often for high-speed applications, which can be up to 120 packs per minute. This machine is usually used to wrap leaflets and magazines.

 

Shrink tube, sleeve or label shrink wrap machine

Shrink tube, or the sleeving machine are usually for medium to high-speed use, and is typically used for packaging bottles. The film is dropped unto the bottle and then the product passes through the heat shrink tunnel. With this machine, you can use label sleeves.

 

Conclusion

Choosing the right machine for your packaging requires a good understanding of your production process. You should think about the purpose of the packaging, the speed of the production process, the range of sizes required for packaging, among other things. Whatever your wrapping needs are, there is always a shrink wrapping machine available to meet your application.