Industrial puff pastry forming uses automated lines with sheeters, laminators, and folding systems to create hundreds of butter-dough layers through repeated rolling and folding, ensuring uniform thickness and structure, followed by cutters or encrusting machines to shape the final products like turnovers, croissants, or napoleons, all controlled by precise rollers and temperature management to prevent butter migration. 

This video shows the process of making puff pastry dough:

This video demonstrates a professional method for making puff pastry: