Packaging techniques and types
Packaging techniques overview
Here you will find a short overview of some explanations of the various packaging techniques. The later chapters in the catalogue are summarised according to these techniques, and are introduced at the beginning again with the short descriptions given below and with typical layouts, designs and photos to help you visualise them.
Within the chapter there are various alternatives to the machines or module components arranged according to packaging performance, or for larger systems according to the product run.
Vertical forming and filling systems
Vertical forming and filling systems can be assembled from a number of modules so that complete systems meet your requirements in terms of pouch shape and size and packaging speed. For all vertical packaging machines, the film is shaped to the pouch and welded. This is carried out immediately before the pouch is filled automatically with the product which has been measured out or weighed beforehand.
Horizontal packaging systems
Horizontal packaging systems work, in principle, in a similar manner to the vertical systems. The only difference is that after the pouch has been made directly from the film, or after a completed special pouch (e.g. with a screw stopped for liquids) has been produced by the machine, the subsequent filling and sealing of the pouch occurs horizontally instead of vertically.
Packaging the surface with cellophane is a very valuable form of film packaging. Here a transparent or printed film of an exact length is formed around a product, folded exactly and welded. The optional addition of a tear-open strip enables the user to open the packaging quickly and easily later on. The cellophane cover is suitable for all possible angular products which are relatively solid.
Shrink wrap packaging
Shrink wrap packaging is characterised by the fact that even irregular shapes, soft or large products can be packaged. The film is welded loosely around the product and then shrunk tightly around it using heat in a shrink tunnel. Another advantage is the ability to package differently-shaped products of similar sizes one after the other in alternation without having to adjust the machine to a certain product size.
Film banding functions almost identically to full film wrapping, but is used for the cheap transport of bundles/containers of products and leaves the sides of the packaging open. In this method, two often thick films are used – one is added from the top and the other is added from the bottom and they are welded. Some machines are also able to carry out full welding (all six sides completely closed) or to package long products such as bundles of shelves very effectively on all sides using heat adhesion of the film on the underside of the product.
In flow wrapping, welding is carried out at high speed. Transverse welding is carried out using a pendulum or turning knife, which moves at the same time as the continual flow of the product. Longitudinal welding is carried out with a continuously moving, heated wheel.
Our filling systems are used to fill liquids, powders or granules into cans, bottles or other fixed containers. From very simple, very cheap stand alone devices to complex systems with input, cleaning, filling, welding and if necessary further processing for example with a bulk packer, these systems are extraordinarily diverse in their range of options and alternatives.
Here you will find a short overview of some explanations of the various packaging techniques.
Tested and overhauled machines from the manufacturers SOLLAS, KALLFASS, BECK, MARDEN EDWARDS, SITMA, MEURER, PESTER and others can be found amongst our special offers.