Below is a list of Manufacturing Automation manufacturers from St. Louis, Missouri. Manufacturing automation refers to the use of computer operated machinery and equipment within a manufacturing setting. This is a broad category of machinery that includes lathes, drills, borers, mills, planers, grinders and other machining tools that use a sharp instrument to cut away material. Besides machining equipment, this category may also include presses, dies, stamps, rollers, dryers, welders and any other tool used to create products from blanks or raw materials.