SLITTERS & REWINDERS | MACHINERY
Right: Goebel IMS will showcase its Interslit slitter rewinders at this year’s Chinaplas
Wide cast film line SML of Austria has commissioned its widest-ever cast polypropylene (CPP) film line – which includes a specially designed turret winder. The line, which will mainly produce CPP film for metallising and laminating applications, has a trimmed final film width of 5,200mm. The line is equipped a W6000 turret winder, which has been specially designed for wide CPP lines with final film widths of between 3,500 and 6,000mm. The winder, which consists of an inlet section and right and left turret units, offers compact dimensions for transport and reduces the installation time required at the customer premises, says SML. A spreader roller and a satellite roller are installed upstream of the winding station, making it possible to influence the air entrapment between the single film layers. The winder can operate in both the contact or gap winding mode. During roll changes, cross-cutting is carried out by an electri- cally activated flying knife and the film is attached to the new winding pipe electrostatically – avoiding the need for adhesive tape, and saving labour. Depending on the end film width, the winder employs 10in or 12in steel winding pipes, which are handled by an overhead crane.
The winder can deal with rolls in diameters of up to 1,300mm and a maximum roll weight of 7,000kg, which corresponds roughly to 60,000m length of 20 micron CPP film. The large winding diameter is a critical advantage for the metallising process because on the one hand, it increases the running time and on the other, cuts the metalliser set-up period.
Auto winding The FTW3200-Dual, a double automatic turret winder from Mondon, can be used for a variety of film production lines, and can handle output automatically. The winders are located at the output of the
extrusion line and are designed to wind agricultural films. Mondon provides two winders with 3200mm width, which load the cores and also unload the finished rolls by themselves. The automatic splice and roll change-over complies with non-stop processes and so means there is no need for an accumulator.
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Visit us at Chinaplas:
Hall 2, Booth 2P83
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