Manufacturer of plastic tubes, profiles and rods by extrusion since 1961
K.+C. Weiss GmbH
Wehingen (Baden-Württemberg)New on Amplifa
About K.+C. Weiss
K.+C. Weiss GmbH is a family-run business in its third generation, headquartered in Wehingen in the district of Tuttlingen, Baden-Württemberg. Since 1961 the company has been producing plastic semi-finished products by extrusion: plastic tubes and hollow rods, packaging tubes, plastic profiles and multi-channel tubes as well as plastic rods and round bars – in small and large series. Materials processed include engineering thermoplastics such as rigid PVC, polystyrene, PETG, polycarbonate and cellulose acetate butyrate, as well as resource-conserving alternatives such as chemically recycled PET, rigid PVC with recycled content and biopolymer-based plastic. On request, material properties can be modified, for example for food contact compliance, UV resistance, increased impact strength or antistatic/conductive requirements. Production includes in-house toolmaking, granulate drying, extrusion on modern systems and printing/marking, also PPWR-compliant. Products are used, among others, in the automotive and supply industry, medical technology, the lighting industry, display and trade fair construction, the toy, brush, packaging and electronics industries as well as dental.
- Site
- Wehingen
- Processes
- Plastic extrusion (tubes, profiles, rods, small and large series), Manufacture of plastic tubes and hollow rods, Manufacture of plastic packaging tubes, Manufacture of plastic profiles and multi-channel tubes, Manufacture of plastic rods / round bars, In-house toolmaking for individual product requirements, Printing/marking of plastic products (also PPWR-compliant), Functional material modifications (impact strength, UV resistance, food contact compliance).
- Materials
- Rigid PVC (polyvinyl chloride, rigid), Polystyrene (PS), PETG (polyethylene terephthalate glycol), Polycarbonate (PC), Cellulose acetate butyrate (CAB), Chemically recycled PET, Rigid PVC based on raw material with 35% recycled content, Biopolymer-based plastic (approx. 75% share of renewable raw materials)
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1961
- Industries
- Automotive and supply industry, Medical technology, Lighting industry, Display and trade fair construction, Toy industry, Brush manufacturing
- 01
Consulting/project development
- 02
Toolmaking
- 03
Granulate drying
- 04
Extrusion
- 05
Downstream equipment
- 06
Printing/marking
- 07
Quality inspection
- 08
Delivery
Materials & Processes
Rigid PVC
Hard, chemical-resistant plastic, self-extinguishing, dimensionally stable up to approx. +60 °C.
Polystyrene
Also available in impact-resistant grade, easy to bond and paint, dimensionally stable up to approx. +50 °C.
PETG
Highly transparent, chemical-resistant plastic, gamma-sterilizable – ideal for medical and packaging applications.
Polycarbonate
Very impact-resistant and transparent, dimensionally stable up to approx. +115 °C, available with UV protection.
Cellulose acetate butyrate
High surface gloss, good scratch resistance and excellent optical properties.
Chemically recycled PET
Resource-conserving alternative made from chemical recycling.
Rigid PVC with 35% recycled content
Rigid PVC based on a raw material with 35% recycled content.
Biopolymer-based plastic
Biopolymer-based plastic with approx. 75% share of renewable raw materials.
Plastic extrusion
Core process for tubes, profiles and rods in small and large series.
Material modification
Targeted adjustment of impact strength, UV resistance, food contact compliance or antistatic/conductive properties.
Coloring according to RAL/color sample
Natural colors, transparent or colored according to RAL or color sample.
Locations
Wehingen
DEHeadquarters: development, production, QA, administration
- Lot size
- Small series to large series
- Materials
- Rigid PVC, PS, PETG, PC, CAB, rPET, biopolymer
- Extruders
- Granulate dryers
- Downstream equipment (extrusion)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic extrusion (tubes, profiles, rods, small and large series)Plastics | – | – | – | Small series – Large series | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB), Chemically recycled PET, Rigid PVC with 35% recycled content, Biopolymer-based plastic |
| Manufacture of plastic tubes and hollow rodsPlastics | – | – | – | – | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB) |
| Manufacture of plastic packaging tubesPlastics | – | – | – | – | Rigid PVC, PETG, Polystyrene (PS) |
| Manufacture of plastic profiles and multi-channel tubesPlastics | – | – | – | – | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB) |
| Manufacture of plastic rods / round barsPlastics | – | – | – | – | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB) |
| In-house toolmaking for individual product requirementsEngineering | – | – | – | – | – |
| Printing/marking of plastic products (also PPWR-compliant)Surface | – | – | – | – | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB) |
| Functional material modifications (impact strength, UV resistance, food contact compliance).Plastics | – | – | – | – | Rigid PVC, Polystyrene (PS), PETG, Polycarbonate (PC), Cellulose acetate butyrate (CAB) |
| Quality inspection: visual, dimensional and surface inspection of every batch, process monitoringTesting | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Extruder | – | – | – | – | Wehingen |
| Granulate dryer | – | – | – | – | Wehingen |
| Downstream equipment/downstream machines (extrusion) | – | – | – | – | Wehingen |
Additional services
Quality
Processing is carried out exclusively with inspected granulates accompanied by factory test certificates; every batch is checked by visual, dimensional and surface inspection. Process monitoring follows a detailed inspection plan with documentation of all relevant production parameters.
| Evidence | Wehingen |
|---|---|
| ISO 9001 |
History
- 1961
Founded as a small enterprise; today an established manufacturer of plastic semi-finished products, family-run in its 3rd generation.