9
XIFOS 33 OI - Iss.3 - EN
On a centre winder the XIFOS 33 may be positioned above or below the reel. It is a
good idea for the ionisation to be directed mainly at the reel, but also catching the
single sheet, as shown at (A). Position (B) is also acceptable.
It is often not possible to place a bar in the optimum position (A). The reason for this
may be that the ideal bar location would get in the way of the loading/unloading
process for the reels or would be in a position where operators might stand on it.
In a dirty or dusty environment, it is better to place the bar facing down, since the
face of the bar will not be covered by the dust. This is not a problem. It is possible to
position the bar at other positions, such as (B) and still achieve a very good result.
We always say that a film web must be in ‘free air’ and not touching a roller to
achieve good neutralisation. This is because we know that the charge on the
material will temporarily combine with the roller and not be available for removal
by the eliminator. This remains true. However, once you have a number of layers
on a reel or winder, all with the same polarity of charge on them, the charge can no
longer combine and can therefore be neutralised layer by layer.
Centre Winder Example
3.
Positioning of the Bar
