Automatic Machine for the production of packages with bottom welding, composed by an unwinder for two coils with expansive axis; pneumatic disc brake and coil end sensor; compensating balance; bottom type welding head with pneumatic cutting system and mechanical and pneumatic detacher; tilting and folding table; robot for the handle of the package and automatic stacking table; PLC with HMI (color touch screen) of easy handling and great location; with recipe storage and other important functions to facilitate the operation and operator interaction.