• De=outside diameter (mm)
  • Di=inside diameter (mm)
  • Hi=internal height (mm)
  • Ht=total height (mm)
  • h=straight flange lenght (mm)
  • r=knuckle radius (mm)
  • S=thickness before forming (mm)
  • s=minimum thickness after forming

Flat Head with Knuckle Radius

COD. 0004
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Flat Head with Knuckle Radius, Sifea srl Flat Head with Knuckle Radius, Sifea srl
Hi = r + h
Ht = S + r + h
De r* h* S
Max. 8500 20 ÷ 500 on request 2,5 ÷ 60
* on request depending on De and thickness
Edge preparation
Every request will be subject to a feasibility study. Depending on the required characteristics (dimensions, material, thickness) S.I.F.E.A. might propose different workings and cold or hot forming. If a dimension has a value out of indicated ranges, please do not hesitate to contact S.I.F.E.A. for a specific evaluation.
Rev. 01-2023