Precision injection moulding, micro injection moulding and mould making for medical technology and technical small parts.
Stamm AG
Hallau (CH)New on Amplifa
About Stamm AG
Stamm AG, headquartered in Hallau (Switzerland), is a specialist in precision injection moulding and micro injection moulding of technical small and micro parts. Founded in 1947, the company develops and manufactures complex plastic components from part design and mouldflow and FEM simulation, through in-house mould making, to series production, assembly and worldwide logistics. On 46 modern injection moulding machines, parts weighing from 0.01 g to 150 g are produced with tolerances of ±0.01 mm in millions of units; more than 500 different thermoplastic materials are used, from standard plastics to high-performance and implant materials. Specialities include multi-component technology, hybrid parts made of plastic and metal, optical components such as lenses and light guides, thin-wall technology with wall thicknesses below 0.15 mm, and cleanroom production according to ISO 14644-1 Class 7 and GMP Class C. Since 2016, Stamm AG has belonged to the SFS Group AG (Heerbrugg); as of 1 January 2026 the Stamm brand transitioned to Tegra Medical, while the legal name Stamm AG and the Hallau site remain in place.
- Site
- CH-8215 Hallau
- Processes
- Precision injection moulding, Micro injection moulding, Hybrid parts (plastic/metal), Multi-component injection moulding (rotating platen, index, core-back techniques, transfer moulding), Optical components (light guides, lenses), Thin-wall technology, Cleanroom technology (injection moulding in cleanroom), Mould making
- Materials
- Thermoplastics (more than 500 different), Standard plastics, Engineering plastics, High-performance plastics, Implant materials, Tool steel (highest-quality steels for tools), Thermoplastics, Optical plastics
- Certificates
- ISO 13485:2016, ISO 9001, ISO 14001, ISO 45001, ISO 13485
- Founded
- 1947
- Industries
- Medical technology & pharmaceuticals, Telecommunications technology, Sensor technology & metrology, Automation technology, Drive technology, Gas and liquid pumps
- 01
- 02
Tool design and mould making in-house
- 03
Injection moulding production including micro, multi-component and cleanroom
- 04
Mechanical post-machining and assembly of assemblies
- 05
Testing and metrology
- 06
Packaging and worldwide logistics
Materials & Processes
Thermoplastics
More than 500 different materials from standard to high-performance plastics are in use.
High-performance plastics
For demanding technical applications with special property requirements.
Implant materials
Materials for medical technology including implant applications.
Optical plastics
For light guides and technical lenses in sensor technology and optical metrology.
Tool steel
Highest-quality steels for the design and manufacture of the injection moulding tools.
Plastic/metal hybrid
Combination of plastic with metal components, supported by the expertise of the SFS Group.
Sites
Hallau
CHHeadquarters, production, mould making
- Part weight / size
- Part weights 0.001–150 g, wall thicknesses below 0.15 mm
- Lot size
- Prototype to million-unit series production
- Materials
- More than 500 thermoplastics
- 46 injection moulding machines
- 5 cleanroom cells (ISO 14644-1 Class 7)
- Turning and milling
- Cylindrical and surface grinding
- Wire and sinker EDM
- Computed tomography scanner
- 3D coordinate measuring machines
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Precision injection mouldingPlastics | ±0.01 mm | – | 0.01 g – 150 g | million-unit production | thermoplastics |
| Micro injection mouldingPlastics | – | – | <0.001 g | – | thermoplastics |
| Hybrid parts (plastic/metal)Plastics | – | – | – | – | plastics, metals |
| Multi-component injection moulding (rotating platen, index, core-back techniques, transfer moulding)Plastics | – | – | – | – | plastics |
| Optical components (light guides, lenses)Plastics | – | – | – | – | optical plastics |
| Thin-wall technologyPlastics | – | – | – | – | thermoplastics |
| Cleanroom technology (injection moulding in cleanroom)Plastics | – | – | – | – | plastics |
| Mould makingPlastics | – | – | – | – | tool steels |
| TurningMachining | – | – | – | – | steel |
| MillingMachining | – | – | – | – | steel |
| Cylindrical and surface grindingMachining | – | – | – | – | steel |
| Wire EDMMachining | – | – | – | – | metal |
| Sinker EDMMachining | – | – | – | – | metal |
| Mechanical post-machining of injection-moulded partsPlastics | – | – | – | – | plastics |
| Assembly of assemblies and final inspectionAssembly | – | – | – | – | plastics |
| Engineering | – | – | – | – | plastics |
| Testing and metrology (computed tomography, 3D coordinate measuring machine)Testing | – | – | – | – | plastics |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection moulding machine | – | 46 | – | – | Hallau, Switzerland |
| Cleanroom cell (ISO Class 7) | – | 5 | – | – | Hallau, Switzerland |
| Computed tomography scanner | – | – | – | – | Hallau, Switzerland |
| 3D coordinate measuring machine | – | – | – | – | Hallau, Switzerland |
Additional services
Quality & Certifications
All production steps are monitored, logged and statistically evaluated using state-of-the-art testing and measuring technology such as computed tomography and 3D coordinate measuring machines. Quality assurance is based on the standards ISO 9001, ISO 13485, ISO 14001 and ISO 45001 (SQS/IQNET).
| Evidence | Hallau |
|---|---|
| ISO 9001 | |
| ISO 13485 | |
| ISO 14001 | |
| ISO 45001 |
History
- 1947
Company founded by Heinrich Stamm, mould making for plastics processing in Hallau.
- 1962
Foundation of Stamm Bacove and establishment of the company's own plastics injection moulding plant.
- 1970
Various new buildings and extensions for mould making and production up to 1987.
- 1991
Generational change, company taken over by Andreas Stamm.
- 1993
Certification according to EN ISO 9001.
- 1996
Strategic realignment towards technical small and micro parts.
- 2001
New building and relocation to the industrial zone with 3,000 m² of production space.
- 2007
Production extension by 2,000 m².
- 2010
Certification according to EN ISO 13485 for medical devices.
- 2011
Certification according to EN ISO 14001 (environmental management system).
- 2014
Commissioning of a second cleanroom cell for medical and pharmaceutical production.
- 2016
Acquisition of Stamm AG by the SFS Group AG (Heerbrugg) as part of the succession plan.
- 2020
Start of the building extension to a total floor area of 10,700 m².
- 2021
Completion of the building extension, move into the new premises.
- 2022
Installation of a further cleanroom (ISO Class 7) with capacity for 6 additional injection moulding machines.
- 2026
Brand transition from Stamm to Tegra Medical (SFS Group) as of 1 January 2026; the legal name Stamm AG and the Hallau site remain in place.