Screw machining & turning
Machining is a process of material removal that involves shaping rotating cylindrical parts from metal or plastic bars. This process, while complex, allows for the production of high-precision parts with extremely tight tolerances.
The Arve Valley, Cradle of French Bar Turning
Located in Haute-Savoie, the Arve Valley is world-renowned for its expertise in bar turning. For centuries, bar turners in this region have developed unique know-how, passed down from generation to generation. The precision and quality of the parts produced in this valley are appreciated worldwide.
What is Bar Turning Used For?
Parts obtained by bar turning are used in a multitude of industrial sectors:
- Automotive: engine components, steering elements, precision parts for injection…
- Aerospace: parts for engines, landing gear, on-board electronic equipment…
- Medical: surgical instruments, implants, prostheses…
- Watchmaking: watch components, precision mechanisms…
- Electronics: connectors, components for electronic equipment…
The Bar Turning Process in a Few Steps
- Choice of raw material: Metal bars (steel, stainless steel, brass, aluminium…) or plastics.
- Fixing the bar: The bar is securely clamped in a chuck.
- Machining: Cutting tools (turning, milling, threading tools…) remove material to give the desired shape to the part.
- Quality control: Each part is meticulously inspected to ensure its compliance with specifications.
The Advantages of Bar Turning
- High precision: The parts obtained are of high dimensional and geometric precision.
- Wide variety of materials: Bar turning can be applied to a wide range of materials.
- Large-scale production: Bar turning machines allow for the production of large quantities of parts in short timeframes.
- Flexibility: Bar turning adapts to the production of parts in medium or large series.
Bar turning is a profession of excellence that requires technical know-how and high precision. Thanks to this process, companies in the Arve Valley provide high-quality parts to many industrial sectors.

CNC Monospindle

CNC Multispindle

Hybrid CNC Multispindle

Multispindle lathes

Transfer machines
5 CNC Multispindle
Capacity of production :
From Ø4 mm to Ø32 mm


27 CNC Monospindle
Capacity of production :
From Ø4 mm to Ø32 mm
5 Hybrid CNC Multispindle
Cacpacity of production :
From Ø5 mm to Ø25 mm


30 Cam Multispindle
Capacity of production :
From Ø4 mm to Ø26 mm
9 Transfer machines
Capacity of production :
From Ø4 mm to Ø20 mm
