Offset Bend (Z-Bend)

Offset bends (Z-bends) create distinctive stepped profiles by making two parallel bends in opposite directions, producing an S-shaped or Z-shaped cross section in the material. These bends are commonly used to create panel offsets for overlapping joints, mounting flanges that need to sit at a different plane from the main body, and transition features between components at different heights.

The challenge with offset bends is that the two bends are close together, often limiting tooling clearance and requiring specialized offset tooling or carefully planned bend sequences on a standard CNC press brake. The distance between the two bends (the offset dimension) must be large enough to accommodate the V-die width, and the depth of the offset affects both the forming sequence and the required tooling profiles.

Press brake programmers plan offset bends carefully to ensure both bends achieve the target angles without interference from previously formed geometry.