Precision machining workshop in Bex, Switzerland, since 1932Quality, precision & delivery on time.
Turning, milling, grinding, slotting, TIG welding and inspection, from prototypes to medium series. Steels, stainless, titanium, tantalum, Hastelloy, Monel, Kovar and engineering plastics.
- 1932
- founded by Henri de Siebenthal
- 26
- CNC and conventional machines
- 2000 mm
- between centres on the lathe
- 0.001 mm
- resolution, printed measurement report
- 436 m²
- of production floor
Machining
Machining by chip removal
As a subcontractor, on prototypes, one-off parts, small and medium series, up to assemblies and sub-assemblies.
- Turning
- Bar turning
- Threading
- Milling
- Contour milling
- Thread milling
- Profiling and gear cutting by milling
- Engraving
- Drilling
- Boring
- Jig boring
- Tapping
- Profiling and gear cutting by slotting
- External and internal cylindrical grinding
- Surface grinding
- Lapping
- Honing
- Sawing
- Cutting off
- Mounting
- Assembly
- Fitting
- TIG welding
- Brazing
- Tinning
- Dimensional inspection
- Surface plate inspection with printed measurement report
- Roughness testing
- Rockwell, Brinell and Vickers hardness testing
Materials
Materials we machine
Metals and alloys
- Steels
- Cast irons
- Bronzes
- Brass
- Copper
- Stainless steels
- Aluminium
- Titanium
- Tantalum
- Nickel
- Hastelloy
- Inconel
- Incoloy
- Monel
- Invar
- Kovar
Engineering plastics
- Graphite
- PTFE
- PP
- PE
- POM
- PVC
- PEEK
- PSU
- Vespel
Machinable ceramics
- Macor
- Stumatit
Machine park
Every capacity, dimensioned
The largest capacity of each family of machines, at the same scale: from the slotting machine to the 2000 mm lathe.
- Parallel lathes6 machines · up to 2000 mm between centres
- CNC lathes2 machines · up to 1500 mm Z stroke
- Knee-type milling machines4 machines · up to 900 mm X stroke
- CNC milling machines2 machines · up to 1250 mm X stroke
- Machining centres2 machines · up to 1626 mm X stroke
- Jig borer1 machine · up to 950 mm X stroke
- Grinding machines3 machines · up to 1180 mm between centres
- Slotting machine1 machine · up to 400 mm X stroke
- Drilling machines2 machinesMorse taper 4, Ø 600 mm rotary table
Parts
Made in our workshop
Static mixer for viscous products, DN25 to DN40Stainless steel 1.4435 
Titanium structure, while machiningTitanium 
Micro-forceps 
Helical translatorHardened 1.4021 steel 
Injector nozzle, 3D surface machiningBronze 
3D structureTitanium
Our history
A family workshop since 1932
In 1932, in the middle of the economic depression, Henri de Siebenthal buys a lathe, a drilling machine and welding equipment. His son René starts his apprenticeship with him in 1938; his grandson Jacques joins the management in 1982.
62 kWp
Our electricity comes from our roofs
We generate our own electricity, with a 62 kWp photovoltaic installation on the workshop roofs.
SKF regional dealer
Bearing sales and advice for more than 50 years. Express: delivered the same afternoon for orders before 11:30.
Quotation request
Send us your drawing
Paper drawing, or PDF, JPEG, DXF, DWG, STEP, IGES or SLDPRT file. Programmed on VIRTUAL GIBBS CAM.