Marshall and Williams Plastics is a recognized global leader and innovator in stretching lines for biaxially oriented and other plastics production lines. Films include BOPS, BOPP, BOPET, BOPLA, BOPTFE, PETG and many other special films that require or are enhanced by the biax process. Founded in 1920, M&W has been offering customers a single source supply by providing complete biaxial orientation system integration.
Marshall and Williams Plastics is a recognized global leader and innovator in plastics orientation. Marshall and Williams designed and built the first Machine Direction Orienter in 1961; and now with nearly 50 years of MDO experience, the brand remains one of the most trusted and experienced in the plastics orientation equipment industry. 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. The device is commonly called a Machine Direction Orienter (MDO).
MDO Technology:
Built to process a variety of materials over a wide range of widths and thicknesses
Marshall and Williams Plastics, is a recognized global leader and innovator in plastics orientation and casting equipment. Marshall and Williams, founded in 1920, built tenter frame systems for the textile industry and was the first to adapt this technology to orient plastic film and sheet. Transverse direction orientation of plastic film and sheet is accomplished by heating the web and stretching it in the transverse (or cross) direction on a tenter frame. The tenter frame consists of two horizontal chain tracks, on which clip and chain assemblies ride. It is usually enclosed in a hot air oven.
TDO Technology:
3 heated zones; the pre-heat, stretch, and anneal sections
A typical cast film line consists of an extrusion system, a casting machine, gauging system, surface treatment system, oscillation stand, and winder. The cast film process is used to produce thin films, typically with low melt strengths. The die is usually positioned vertically above the main casting roll and the melt is pinned against the casting roll with the use of an air knife and/or vacuum box.
The casting machine is designed to cool the film and provide the desired surface finish on the film and typically consists of two casting rolls. The main casting roll is used primarily to provide initial cooling and surface finish on the film. The secondary casting roll cools the opposite side of the film to provide uniformity in ...
Founded in 1920, Marshall and Williams Plastics is a recognized global leader and innovator of world class plastic sheet and film processing equipment. Marshall and Williams has the industry’s most complete range of systems and services for downstream flat sheet and film processing. These solutions help to simplify the most complex sheet production demands. Standard capabilties of Sheetline Systems include:
Vertical, horizontal & inclined roll configurations
Precise temperature control using circulating water or thermal fluid
Tilt stack roll configurations that operate from 0° - 90°
Independent roll drives for precision control
Simple and comprehensive operator’s control interface
A typical extrusion coating line consists of a continuous unwind, surface treatment system, extrusion system, a laminator, laminate unwind, trim system, thickness gauging system, and continuous winder. The extrusion laminating process is used to produce laminations of paper, film, and/or foil substrates for many applications including flexible packaging materials, liquid packaging including milk and juice cartons, various automotive products, construction
materials, and industrial products.
M&W custom builds extrusion laminating machines to meet a wide range of materials and production requirements. M&W extrusion laminating machines are designed to meet your most demanding application requirements.
Marshall and Williams Plastics is a recognized global leader and innovator in complete production systems for biaxially oriented and other plastics production lines. Founded in 1920, M&W has been offering customers a single source supply by providing complete system integration.