Once the dimensions of the Duct and the type of closure to be used (Snap Lock or Pittsburgh-type closure) have been programmed, the machine proceeds to make cuts at each programmed longitudinal end, which serves as a reference for it to be folded manually or automatically, and thus form the duct.

Additionally, a cut will be made at the exact transversal ends of the programmed closure type, which will identify the material consumed for the manufacture of the selected closure.

While programming we have many options:

a. That the equipment DOES NOT fold and come out in a single plate, so that it is folded manually and the duct is assembled in a single part.

b. Make a fold so that 2 “L” type sections come out and the duct is assembled in 2 parts.

c. To make 3 folds and the duct is assembled in one part.

d. Do NOT fold and come out in 4 pieces, so that it is a 4-sided assembly.

In manufacturing, the selection of whether the duct will come out in 1, 2 or 4 pieces will depend on its section (width + height):

a. For ducts with a section of up to 26 inches, they will be manufactured to be assembled in one part.

b. For ducts with a section of up to 54 inches, these will be manufactured to be assembled in two parts (L-shaped manufacturing).

c. For ducts with a section equal to or greater than 55 inches, these will be manufactured in 4 parts.