As a reliable partner for high-quality silicone components, Frey & Winkler offers customized solutions that meet your specific requirements. With our extensive expertise in silicone injection moulding and many years of experience, we support you from the first idea all the way to series production.
Our focus is on producing innovative, precise and functional silicone parts that enhance your product quality and give you a competitive advantage.
Liquid silicone (Liquid Silicone Rubber, LSR) is a high-performance, thermally crosslinking elastomer that combines flexibility, resistance and biocompatibility. Holding up to extreme temperatures from –50 °C to +250 °C and high chemical resistance, LSR is the perfect choice for demanding applications in medical technology and eyewear. These outstanding properties make it an indispensable material for your innovative products.
The silicone injection moulding process is an advanced technology for manufacturing silicone components that combines maximum precision, flexibility and efficiency. Especially in the field of liquid silicone rubber (LSR), this process enables the series production of complex, delicate and functionally integrated parts also in high quantities.
In contrast to classic thermoplastic injection moulding, LSR injection moulding is based on a two-component process. The two components – base polymer (part A) and catalyst (part B) – are combined in precisely metered mixing ratios to achieve the desired crosslinking and material properties. An optional third dosing stream for colour pigments enables the production of coloured parts directly in the injection moulding process.
Frey & Winkler is your partner for manufacturing silicone components to the highest quality standards. Our state-of-the-art injection moulding machines with clamping forces up to 150 t enable the production of precision parts used, among other things, in medical technology and eyewear. Using micro injection moulding and 2K technology (multi-component injection moulding), we produce functionally integrated components that significantly improve your product quality and functionality.
Examples of Applications:
The colour design of silicone components allows them not only to meet technical requirements, but also to set aesthetic accents. By mixing colour pigments directly into the injection moulding process, precise and reproducible colouring is achieved, exactly matched to your requirements. Various methods are used for colouring, depending on the need.
The colour components are incorporated into one of the two silicone components before mixing to ensure an even colour blend. Alternatively, an additional colour-pigment stream is integrated directly into the mixing process to control colour intensity precisely. Colour pigments can be added in proportions from 0.3 % up to 4 % to achieve the desired product properties.
Micro injection moulding enables the manufacture of small, precise silicone components that play a major role, particularly in medical technology and microelectronics. Thanks to insert moulding, inserts such as metal contacts can be integrated directly into the silicone injection moulding process, minimising assembly times.
Frey & Winkler ensures that every step of the manufacturing process meets the highest quality standards. We work in accordance with DIN ISO 13485 and DIN ISO 9001. All production steps – from material selection to final inspection – are fully documented and monitored. For medical applications, manufacturing is carried out under cleanroom conditions in accordance with ISO 14644-1 Class 8.
Our quality assurance measures include:
Our engineers support you throughout the entire development process, from the initial design all the way to series production. Our in-house toolmaking allows us to respond flexibly to your requirements and make rapid adjustments. We offer a full-service approach that ranges from CAD-assisted component optimisation to prototype production and final assembly.
Frey & Winkler is constantly seeking innovative technologies to meet our customers’ challenges. We continuously develop new products and technologies that meet the latest requirements in specialised applications. Our customers benefit from many years of experience and our focus on technical creativity, which has significantly shaped the market for over 30 years.
Frey & Winkler focuses on two key application areas: medical technology and components for the eyewear industry. In medical technology, we offer solutions for precise seals, catheter components and medical devices that meet the highest requirements for biocompatibility, sterility and functionality. Our expertise and manufacturing competence ensure that we are valued as a reliable partner in this highly regulated sector.
Originating from the eyewear industry, we develop customer specific components such as nose pads, temple tips and bridge supports that are functional, comfortable and stylish at the same time. Our products are renowned for their precision and quality, and contribute to the durability and user-friendliness of spectacles.
Frey & Winkler not only offers precise and flexible manufacturing technologies, but also a partnership-based collaboration founded on trust and innovation. We are your reliable partner for high-quality, functional and aesthetic silicone components.
Contact us – together we will find the ideal solution for your requirements.
