Air knife unit apply air pressure across the width in such a order, so that cast film fully touch the surface of the chill roll without any air gap or bubble.
The die unit is situated between extrusion and film casting unit. It casts melt from
extrusion for further processing on the film casting unit. The die unit mainly consists
of die frame, melt die support, melt die and adapter block.
Film Casting Unit (CAS)
The film casting unit is the first machine in the stretching line.The melt is pulled from
the die, cooled, set and delivered as a cast film to the following machine, the machine
direction orienter (MDO).
The film casting unit includes:
• chill roll
• film pinning
• cast film gauge (optional)
• auxiliary winder (optional)
China's BOPP film manufacturers stand out for their impressive production capabilities and cost-effective solutions, making them formidable players in the global market. With a focus on efficiency and scale, these manufacturers have established themselves as reliable suppliers for various industries, from food packaging to industrial applications. Additionally, their strategic investments in state-of-the-art machinery and quality control measures ensure that customers receive BOPP films that meet rigorous standards. The competitive edge of China BOPP film manufacturers lies in their ability to provide a diverse range of films tailored to meet specific needs, making them pivotal contributors to the packaging landscape.
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