42
Preparation for use
Film overlap
The film overloap is determined by the rotation speed of the table
belts. The speed of the table belts can be varied by mounting a
different sprocket.
A 12-teeth sprocket is standard mounted. In case a pre-stretcher
adapter for 500 mm film rolls [+] is mounted, an 18-teeth sprocket can
be mounted.
Recommended setting, depending on the desired film roll width:
Exchanging the sprocket:
> Loosen the chain tensioner
> Remove the chain
> Remove the sprocket
> Mount the desired sprocket
> Mount the chain
> Tighten the chain tensioner
Sprocket
Chain tensioner
Chain
Film roll width (mm) Sprocket (teeth) Film overlap (%)
500
18
50
750
12
50