Thermoforming, how does it work?

Thermoformage plastique - process industriel
Thermoformage plastique - process industriel

One of the most virtuous processes

Thermoforming is a plastic processing technique which is considered one of the most environmentally friendly : it generates less waste and loss of material than other processing techniques. Plastic waste can be recycled and reused, contributing to sustainability and reducing the carbon footprint. It is therefore an efficient, economical and versatile manufacturing process, offering many advantages over other plastic processing techniques. Its adaptability, speed of production and reduced environmental impact make it an attractive solution for many industrial applications.

The stages of thermoforming

1. Raw materials

PETIT is able to transform a large number of plastic materials such as PP, APET, PVC, PS as well as their derivatives (expanded, complexed).

2. Preheating

Consists of passing the film over heated rollers to prepare the material and allow higher temperatures to be reached.

3. Heating

Each material is heated via radiants to different temperatures depending on its physicochemical properties.

4. Forming

Forming is the step where the part takes shape. Depending on its geometry (height, development, etc.), a piston may be necessary for the correct forming of the parts.

5. Cutting

Once the parts are formed, they are cut individually and the excess material is eliminated. These surpluses are collected: they are then recovered by specialists in the plastic recycling sectors.

6. Automatic stacking

The trays are stacked and come out of the stacker to be packaged.

7. Packaging

The parts produced are placed in food grade plastic bags, and placed inside the boxes then installed on a film-covered pallet.

Schéma du thermoformage plastique