Contact us!

Personal contact is important to us. If you have any questions or suggestions, or if you would like further information, please don't hesitate to contact us. We look forward to hearing from you!

Söhner Kunststofftechnik GmbH, Industriestrasse 29, 74193 Schwaigern, Germany

T +49 7138 812-200
F +49 7138 812-520
E info(at)

Or just use our contact form:

To the contact form





SÖHNER Kunststofftechnik relies on thermoforming and twin wall panel processing.

Thermoforming, also known as hot forming or vacuum deep drawing, is an economical and effective technology for forming thermoplastics. It delivers high-quality results and offers an almost unlimited range of application possibilities. According to the material type and thickness, three forming methods can be differentiated: single-sheet thermoforming, twin-sheet thermoforming and film processing.

  • High economic efficiency, even in case of small and medium-sized series
  • Affordable tools
  • Use of multilayer materials (ABS/TPU, etc.)

    Single-sheet thermoforming

    In the single-sheet process, a sheet of plastic is first heated on both sides and pre-stretched under a flow of compressed air. Then the mold moves into position and the desired shape is created from the heated sheet by a vacuum. By cooling the mold and using a fan, the hot parts are cooled and released from the mold by inflowing air.

    Possible areas of application:

    • Workpiece carriers and containers
    • Inserts
    • Interlayers
    • Lightweight molds

    Twin-sheet thermoforming

    Unlike the single-sheet process, two plastic sheets are heated, shaped and molded in a single process in the twin-sheet method. The sandwich-like structure that is created is much more rigid even though the same materials are used.

    Possible areas of application:

    • MegaPack large load carriers: pallets, lids and twin-sheet sleeve
    • Workpiece carriers and containers
    • Interlayers
    • Load units
    • Technical molds

    Film processing

    When processing films, thermoplastic films with a thickness of 0.3 - 2.5 mm are drawn into an automated molding machine, heated and shaped on a mold using a vacuum and compressed air. The material hardens into its permanent shape as it is then cooled. The shaped parts are punched out and then stack.

    Possible areas of application:

    • Blister packaging
    • Workpiece carrier
    • Inserts
    • Other packaging


    The machines that we use in post-processing are the state of the art. On modern 5-axis and/or 6-axis milling centers, deep-drawn parts up to a maximum size of 2000 x 3000 x 1000 mm are post-processed rationally and precisely. For monitoring and quality assurance, we also have our own 5-axis measuring centers.

    Twin wall panel processing

    Twin wall panels and lightweight panels (trilaminate) made of polypropylene combine the positive features of plastic with the lightness of structured core panels. They are characterized by a high loadability, a low specific weight and easy processability.

    Cutting and punching:
    Modern bridge and roller type punch presses allow the creation of precise custom and individual parts of twin wall panels. For more complex contours or the quick creation of prototypes, we also use a CAD-controlled cutting plotter.

    Bending, edging and embossing:
    To lend packaging its proper shape, produce additional stability or seal exposed edges, we can trim and bend twin wall panels up to 10 mm thick at any angle.

    Individual packaging elements are joined by means of thermal welding such as hot element welding, hot-air welding or ultrasonic welding.

    To protect sensitive, painted or coated components, twin wall panels can be laminated with fleece. For this purpose, we use non-woven fabric made of 100% polypropylene.

    Twin wall panels have a smooth surface and can thus be printed without a problem using screen or flexographic printing.

    The application of labels is also possible.

    You would like to get to know our technologies and range of services in regard to the manufacturing and processing of thermoplastics more closely? Contact us. We are happy to answer your questions.