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WEISS Kunststoffverarbeitung GmbH & Co. KG

Stand: 21-D9
Contract and contract manufacturing - Injection moulding
https://www.weiss-kunststoff.de

About us

Plastic at its best

“Plastic at its best”: According to this principle, Weiss is presenting its expertise as a manufacturer of sophisticated, customer-specific injection molded parts in the trade fair showcase at the KPA. The company, a specialist in plastic injection molding since 1966, develops and produces plastic components that are characterized by special requirements, for example in terms of dimensional accuracy, functionality and appearance.

Weiss covers the entire value chain: from intensive advice to customers during the product development process, through the development and construction of the injection molding tools and the actual injection molding, right through to complex assembly, labeling and in-line testing processes. Production takes place in Illertissen or in Györ/Hungary. Assembly devices developed in-house also solve very demanding tasks in handling and testing technology. The level of automation is adapted to the quantities to be produced, and state-of-the-art CAX tools, among other things for simulating the injection molding process, create an important prerequisite for the production of components in “Class A” quality.

Weiss is currently working on numerous new projects, using new technologies and opening up new customer groups in what is still the largest user sector, the automotive industry, but also, for example, in medical technology and intralogistics. A rapidly growing segment is electromobility, for which Weiss produces, among other things, sensor housings and plugs with integrated current-carrying contacts.

Another advantage from the customer's perspective when working with Weiss: Depending on the requirements profile and desired level of automation, the injection molded components are manufactured in the main plant in Illertissen or in the production facility in Györ, Hungary, which was founded in 2007. Both plants have been repeatedly expanded in recent years and kept up to date with the latest technology. In total, Weiss employs around 260 people. The machine park currently includes 93 injection molding machines with locking forces of up to 4,000 kN and for injection weights from 0.01 to 1,400 g.

Jürgen Weiß, managing partner: “From our point of view, the KPA offers a very good opportunity to present our very special know-how to the specialist audience. We look forward to the trade fair and discussions with experts and potential new customers.”

Products & services

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INTELLIGENT INJECTION MOULDING: TYRE PRESSURE SENSORS "FROM A SINGLE SOURCE"

Weiss produces sensor housings using the 2K process for a manufacturer of tire pressure monitoring systems. Stamped and bent parts are also integrated into the housing as transmitting antennas. They pass on the measurement data via radio. THE TASK The task was to design and manufacture a housing for the sensors housed in the tire. The specifications included a service life of five years and thus permanent protection of the sensitive measuring electronics, access to the pressure sensor and the integration of the antenna with which the measurement data is transmitted to the telematics unit. THE SOLUTION The production concept developed by Weiss begins not only with the plastic granules, but also with a delicate stamped and bent part. It serves as an antenna that sends the sensor signals to the telematics unit. It is automatically separated and placed by a robot in a 2K tool that is equipped with a turn-turn device. The 2K injection molding system first encapsulates the punched-bent part with a PBT, which the actual sensor housing is made of, and in the second process step with a soft TPE, which closes the assembly openings and forms a seal. After an automated in-line test, the housings are placed - again automatically - in the transport packaging. SPECIAL FEATURE Two automated in-line tests are part of the production process. One is to ensure that the hole that ensures air flow through the sensor is present and of sufficient size. The presence of the antenna in the sensor housing is also checked. The control concept is also unconventional: As a master, the robot determines the cycle of the injection molding machine, and the control allows both a start-up phase and continuous production in smaller quantities. The metal parts are then inserted into the tools by hand.