Pre-bending is highly reduced because the material gets pinched by in between the two central rolls.

  Working can be made in one only pass, following the steps here below:

1. Squaring                                               

2. Pre-bending     

3. Bending

4. Closing pre-bending                           

  The plate is fed into the machine horizontally thanks to the support of the lower roll (B) with the side roll (D).

  The plate is squared thanks to the position that the side roll (C) takes.

  The space to the limit of the machine reduces to one side only, thanks to the possibility of squaring and bending in one only step.