Machine Direction Orientation (MDO) Systems

MDO TECHNOLOGY

Machine direction orientation of plastic film and sheet is accomplished by heating the web and stretching it in the machine direction over a series of rollers. This device is commonly called a Machine Direction Orienter (MDO). 

Marshall and Williams Plastics’ MDOs are built to process webs of various forms and materials over a wide range of thicknesses. These webs can be film, sheet, netting, or nonwovens and are commonly made from polypropylene, polystyrene, polyethylene, PVC, polyester, PLA, and other materials.

M&W’s various styles of MDOs include vertical, horizontal, cantilevered, and sliding module designs. Each style is available with a single/multi stage capability.

For each application, our exclusive M&W heat transfer simulation program is used to predict the behavior of the material as it passes through the process. Combined with our extensive processing knowledge, this information can be used to select the appropriate style machine and the correct number and size of rolls needed to provide the best solution for each customers application.