External cylindrical grinding between centers and in collets

Grinding of precision turned parts is a machining technique that consists of machining mechanical parts to improve their precision and/or surface finish.

Different types of grinding can be used depending on the characteristics and shape of the part to be ground.

SA Lefaillet performs all these types of grinding, and in particular external cylindrical grinding between centres or in collet.

External cylindrical grinding

External cylindrical grinding enables the following main grinding operations to be carried out:

  • External cylindrical grinding.
  • External conical grinding.
  • External form grinding.
Main materials used in external grinding

The main equipment used for external grinding at Lefaillet is as follows:

  • 6 Kellenberger CNC machines.
  • 1 Studer CNC machine.
Possible dimensions and tolerances for external grinding

At Lefaillet, we can grind your precision turned parts in external cylindrical grinding with the following dimensions:

  • ∅ 3 to ∅ 150.
  • Maximum length: 1 meter (depending on the type of parts).


  • Dimensional 0.005.
  • Geometric 0.003.
The types of mounting for external cylindrical grinding

The workpiece can be mounted in external cylindrical grinding in the following ways:

  • Air mounting (universal chucks).

  • Collet mounting.

  • Mounting between centers.

For more information or a quote for your external cylindrical between centres or in collets grinding needs, contact us!

High Precision Grinding

Our grinding services for precision turned parts and machining

Cylindrical internal grinding

Lefaillet takes care of the internal cylindrical grinding of your precision turned parts or precision machining parts.

External cylindrical grinding

Lefaillet can apply external cylindrical grinding between centers or in collets to your turned parts.

Centerless or plunge grinding

Lefaillet can process your turned parts with centerless throughfeed or plunge grinding.

Grinding and pairing of turned parts

Lefaillet can handle the grinding and pairing of your precision turned parts.

Other services for precision turned parts

Lefaillet can provide other services around the grinding of your precision turned parts.

Your precision turned parts can also go through combined grinding operations.

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