Specialist in plastic injection moulding, watch gaskets and precision micro plastic parts, with in-house toolmaking.

A. Aubry AG
Grenchen (Switzerland)New on Amplifa
About A. Aubry AG
A. Aubry AG is a Swiss SME based in Grenchen that has been manufacturing precision plastic parts for over 40 years. The company covers the entire value chain in-house: design with CAD/CAM (Mastercam), its own toolmaking, its own injection moulding plant and quality inspection. On 15 computer-controlled injection moulding machines with 15 to 120 tonnes clamping force, parts with shot weights from under 1 gram to 150 grams are produced from reinforced and unreinforced thermoplastics. A focus is on small, thin-walled and highly precise small and micro parts from 0.004 grams. The company also manufactures machined turned plastic parts with diameters of 2 to 49 mm as well as stamped flat gaskets. Customers come from the watch industry, electronics, apparatus, medical and construction industries.
- Site
- Grenchen
- Processes
- Plastic injection moulding (reinforced and unreinforced thermoplastics), Toolmaking (CNC turning, CNC milling, die sinking EDM, precision grinding), CNC turning (customer orders, turning from solid), CNC milling, Die sinking EDM, Precision grinding, Design (CAD/CAM, Mastercam, complex freeform surfaces), Quality assurance/final inspection (state-of-the-art technology, ISO 9001)
- Materials
- Thermoplastics (reinforced and unreinforced), NBR Nitrile, HNBR, FKM, PTFE / Teflon (FEP), Tefzel (ETFE), Silicone, Delrin
- Certificates
- ISO 9001
- Industries
- Watch industry, Electronics, Apparatus engineering, Medical technology, Construction industry
- 01
Design (CAD/CAM, Mastercam)
- 02
Toolmaking (CNC turning, CNC milling, die sinking EDM, grinding)
- 03
Plastic injection moulding
- 04
Turning from solid / stamping
- 05
Quality inspection and final control
Materials and Processes
Thermoplastics (reinforced and unreinforced)
Basis for high-precision injection moulded parts from 0.004 to 150 grams part weight.
NBR Nitrile
Elastomer material for watch gaskets and O-rings.
HNBR
Elastomer for O-rings in various hardnesses and colours.
FKM
Fluoroelastomer for seals exposed to chemical and thermal stress.
PTFE / Teflon (FEP)
For seals with high chemical resistance.
Tefzel (ETFE)
Transparent material for seals with excellent chemical and thermal resistance.
Silicone
Semitransparent or transparent elastomer for O-rings and seals.
Delrin
Available material for watch gaskets.
PVDF Kynar
Available material for watch gaskets.
Hytrel / Zytel / Arnitel / Aubrydur PAMT
Standard materials for watch gaskets in various colours.
Sites
Grenchen
CHProduction and Administration
- Part weight / size
- Injection moulding: 0.004–150 g; turned parts Ø 2–49 mm
- Materials
- Thermoplastics, elastomers (NBR, HNBR, FKM, silicone, etc.)
- 15 injection moulding machines (15–120 t clamping force)
- CNC lathes
- CNC milling machines
- Die sinking EDM machines
- Precision grinding machines
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic injection moulding (reinforced and unreinforced thermoplastics)Plastics | – | – | under 1 gram – 150 grams | – | Thermoplastics (reinforced and unreinforced) |
| Toolmaking (CNC turning, CNC milling, die sinking EDM, precision grinding)Machining | – | – | – | – | – |
| CNC turning (customer orders, turning from solid)Machining | – | – | – | – | – |
| CNC millingMachining | – | – | – | – | – |
| Die sinking EDMMachining | – | – | – | – | – |
| Precision grindingMachining | – | – | – | – | – |
| Design (CAD/CAM, Mastercam, complex freeform surfaces)Engineering | – | – | – | – | – |
| Quality assurance/final inspection (state-of-the-art technology, ISO 9001)Testing | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection moulding machine | – | 15 | Clamping force 15-120 tonnes | – | Grenchen |
| CNC lathe | – | – | – | – | Grenchen |
| CNC milling machine | – | – | – | – | Grenchen |
| Die sinking EDM machine | – | – | – | – | Grenchen |
| Precision grinding machine | – | – | – | – | Grenchen |
Additional services
Quality
A quality management system according to ISO 9001 ensures compliant and reproducible part quality. Quality assurance inspects ongoing and finished production during manufacturing and at final inspection using state-of-the-art technology, so that deviations are detected and corrected early.
| Evidence | Grenchen |
|---|---|
| ISO 9001 |