Welcome to K. C. Weiss GmbH
Your certified manufacturer of plastic pipes, profiles and rods
K. C. Weiss GmbH is a third-generation family-run company based in the Tuttlingen district (Baden-Württemberg). For over 60 years, we have stood for quality and precision in plastics extrusion – for both small and large series production.
What sets us apart: reliability, technical expertise, and a solution-oriented approach. As a true Swabian inventive company, we work with our customers to develop tailor-made plastic solutions – even for complex requirements.
Our claim
Quality without compromise. That's why our production is certified according to DIN EN ISO 9001:2015 (PDF) – including our own toolmaking facility for customized product requirements.
As a medium-sized manufacturer, we develop and produce:
Our products are used in a wide variety of industries, including:
Automotive and supplier industry
Medical technology
Lighting industry
Display and exhibition construction
toy industry
Brush production
Use of only tested plastic granules with factory test certificate
Visual, dimensional and surface inspection of each batch
Efficient, certified processes from inquiry to delivery
Permanent process monitoring and documentation according to a detailed test plan
Material processing with modern granulate dryers, extruders and downstream machines
Tested quality – Made in Germany
We rely on seamless quality management and controlled manufacturing processes – from raw materials to the finished product.
Request a quote now
Are you looking for an experienced manufacturer of plastic profiles, plastic pipes, or round bars? Contact us – we will advise you personally and work with you to develop the optimal solution for your project.