Tube former machine is desingned, to produce ducts in desired diameter and lenght. The machine is more economic and usable than similar others. It has high quality composing shape. Alternative to standart diameters, it is possible to produce endless pipe in several dimesion. Manufactured ducts fulfill the requirements for Eurovent and Smacna. Cutting Process is made by knife (Slitter). Cutting unit is driven pneumatically. Forming and seaming is designed mechanically. Colling liquid is used during the seaming process.