Preparation for use
41
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 differ-
ent 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 tensionerChain
Film width (mm) Sprocket (teeth) Film overlap (%)
500 18 50
750 12 50
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