JWT Technology


1005 N Washington St.   Lisbon, IA  52253 USA   1-319-408-1111

JWT duct lines are now available with in line duct seam closing


To visit product page, click on captions or pictures below.

Square 3
Square 2

Rectangular Duct Lines

Conventional U or Z line layouts.  Produce two piece L, one piece wrap or four piece ducts complete from coil. 

 Full Line I Type / space saver line for finished ducts from coil with seam closing.

The Square 2 is the first half of a U or Z line.  It produces notched,  beaded blanks cut to length.

The Square 3 is the first half of an I line.  It produces notched ,beaded blanks cut to length  with male and female Pittsburgh seams.

​​​​U LINE                                                               I LINE                                                          SQUARE 2                                                      SQUARE 3