​​YOUR EXCLUSIVE SOURCE FOR SPIRAL ELBOW MACHINE!

1005 N Washington St.

Lisbon, IA  52253  USA

1-319-408-1111

STANDARD

SHEET METAL MACHINERY

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

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

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