Production technologies

Overall responsibility requires teamwork

High quality plastic in functional forms requires competence and quality. Autotest has the know-how to manufacture precision fit, superior plastic products using different techniques. We develop innovative solutions in close cooperation with our customers and suppliers.

  • We are, in close cooperation with our development partners, an established systems and parts supplier. We are your partner for challenging interior and exterior parts and assemblies.
  • Project management, Manufacturing, Painting, Quality, and Logistics are our core competencies.

Products using PUR – Polyurethane (Duroplastic)

PUR-Foam molding

Using a mixing head polyol and isocyanate are mixed and injected directly into a mold, where the material slowly hardens. This method is mainly suitable for small volume series, since it can be implemented in a relatively short time frame and with low tooling costs.

PUR-HS-RIM / HS-RRIM

(high speed polyurethane reaction injection molding reinforced with fiber)

Using a mixing head polyol and isocyanate are mixed. In the polyol an additional 17% of ground glass or Tremin is mixed. From the mixing head, the mixed material is injected at high pressure into a mold. This results in crash safe and flexible parts for exterior use for mainly small and medium volume series within the automotive industry. It is important that, in spite of high elasticity, the dimensional stability is maintained. With this method we are able to manufacture bumpers, side skirts and spoilers for a high quality paint finish.
Five presses between 100 and 600 tons in the Lana and Eisenach facilities.

PUR-LFI

(long fiber injection)

Using a mixing head polyol and isocyanate are mixed. Glass fi laments are cut (about ½ inch (12 mm) long) directly at the mixing head and the blended material is then injected from the mixing head into a mold.
The additional use of natural fi ber and glass fiber mats allows for large lightweight parts with extremely high stability to be produced. The results are stable and weight optimized parts for door panels, instrument panels, and center consoles for premium vehicles.
Four presses between 180 and 250 tons in the Eisenach facility.

PUR-CSM/NFPU

(composite spray)

The same procedure as LFI, with the possibility to exclude glass filaments.
This process allows alternative reinforcing materials such as natural fiber mats from flax, sisal or hemp to be used. The material is sprayed onto the mat and penetrates it, thereby ensuring stability.
Two presses, 250 and 350 tons in the Eisenach facility.

PUR-GMPU/SRIM

(structural reaction injection molding)

The same procedure as CSM with the difference that the material is not sprayed but rather injected into a closed mold.
An additional glass mat is inserted into the mold.
One press, 100 tons in the Eisenach facility.

Products using various thermoplastics

Injection molding

One of the most common processing methods for plastics is the injection molding process.
The plastic is processed in the machine in the form of granules and brought to the proper processing composition and temperature. The plastic is injected into the mould under high pressure, filling the negative image of the part.
A specially designed cooling system solidifies the plastic during the process. When opening the mold, the product is ejected or removed by a handling robot.
15 presses between 60 and 1500 tons in the Fortezza and Eisenach facilities.

2 components injection molding

Two different thermoplastics are (simultaneously or staggered) injected into a mold.
Two presses, 450 and 600 tons in the Fortezza facility.

Painting

Two painting lines from Eisenmann, with the latest equipment technology.