The laser is used only inside the tube and the outer edge remains so that the welding does not have to be carried out on the outside. That means that the real material edge of the profile remains untouched. However, the safety for the customers through a fine material connection and no sharp edges at the corners is given.

The top and bottom edges are cut clean and free so that no bulges or corners occur during bending.

Individual solutions

bundle corner

with slots and notches


Simplification of the weld preparation through innovative compound techniques

corner compounds

corner compounds pattern

bayonet connections


stabilized corner compounds

compound with dovetail

example of the protection