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With the unique extrusion process, ALUnna has the capability to produce continuous lengths of extruded profiles. Unlike the conventional extrusion process, the continuous extrusion process does not use billets. Instead, raw material is fed into the process from a coil. This process is especially useful for the production of small extrusion profiles used as spacer bars in alloys EN AW-1050A / 1350A or EN AW-3103/3003.

If necessary, there is an option to apply a draw pass to the spacer bar profile using an in-line Schumag continuous drawing machine in order to achieve the final dimension and the most demanding of tolerances.

Profile Dimensions:

Circumscribed circle of 5 mm to 30 mm for solid and hollow profiles.

Alloys and Temper:

  • EN AW-1350A H111; H14
  • EN AW-1050A H111; H14
  • EN AW-3003 H111; H14
  • EN AW-3103 H111; H14

Animation: Extrution of Spacer bars