• Infeed Swaging

    For the production of long reduced cross sections with relatively flat transition angles.

  • Plunge Swaging

    For local cross-sectional reduction with steeper transition angles.

  • Production of internal profiles

    • Splines
    • Internal hexagon forms
    • and other non-circular forms

The Manufacturing Process

Infeed and Plunge Swaging

By infeed swaging, the workpiece is fed axially at a constant rate of speed through the oscillating dies. Most of the forming energy is concentrated in the tapered section of the dies. The swaging head is equipped with calibration shims between the strikes and dies.

In addition to radial oscillations, the dies perform a larger radial closing and opening movement during plunge swaging. The infeed motion is achieved by tapered strikes and calibration shims. 

The forming energy is concentrated in the tapered and cylindrical areas. Plunge swaging allows cross-section reductions between both workpiece ends.

Production of inner Profiles

Swaging also allows production of inner profiles such as splines, internal hexagon forms and other non-circular forms.

Infeed Swaging

For the production of long, reduced cross sections with comparatively flat transition angles.

Plunge Swaging

For local cross-sectional reduction with steeper transition angles.

The cylindrical section of the dies is used for calibration of the reduced cross-section. Internal profiles with close tolerances can be produced by using a rotary swaging mandrel. A special mandrelallows the production of cylindrical or tapered bores with close tolerances.


Swaging also allows production of inner profiles such as splines, internal hexagon forms and other non-circular forms.

The achievable tolerances are comparable to those turning machines.
Depending on the forming degree and the nature of the dies, the tolerances are from ±0.01 mm to ±0.1 mm according to the workpiece diameter.


Almost any metallic material with sufficient ductility can be formed by rotary swaging.

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