Hemming - Hem edges
Hemming, also known as "Fold flat press," "Flat press fold," or "flat press bending," refers to folding or doubling a plate edge to create a smooth, finished edge using special bending tooling.
The following configurations are possible:
Self-edges up to 1.5 mm
- Max. length 3000 mm
- Hemmed edge: height 7 mm (larger is possible)
Self-edges up to 2 mm: with free choice, preferably a 15 mm edge.
- Max. length 4000 mm.
- Up to 2 mm, hemmed edge 14 mm inward.
- Unfolded length with self-edge: do not subtract sheet thickness for the self-edge, e.g., U 50/100/50 with 2 self-edges of 15 mm and thickness of 1.5 mm.
- Unfolded length = 15 + 48.5 + 97 + 48.5 + 15.
Self-edges up to 3 mm.
- Max. length 2000 mm.
- 3 mm is already quite thick, resulting in a fairly rounded top edge.
- A better option from 3 mm onwards is a double-folded edge, for example, 30/30.