EHA Round arch shaping machine

And again you should not do this by hand .. !
Get yourselves one of these Round arch shaping machine
and never look back ..

The electro-hydraulic notching unit EHA is used to mechanically produce round notching in double standing seam profiles to prepare them for assembly. These are used as lower and upper fold ends on roofs, dormers, facades and balustrades with different center’s of gravity like eaves and roofing joints, flues, mono, pitched roofs, facades bases, pelmets, verges, lintels, etc. Parallel, oblique or conical plates may also be notched. Procedure: notching – feed forward – fold back.

The machine is equipped with segment rails in the upper beam, bending beam and the Supporting table. For this reason, it is also possible to fold back rhombic plates and shingles (see sketch), for mirrored covering and coffered roof Slabs. Working widths may vary from 300 - 800 mm, the notching and fold back width and angle (inwards and outwards) are adjustable.