Acuracy of sheet transfer between cyclinders

Lukew

Well-known member
We are having a slight problem of accuracy of transfer between cyclinders on our 52 4 colour, now, the tech is geting it beter and beter,and is still working on it,
I know a few machines to meet iso standard have an acuracy of no more then 4 - 5 microns of movement of sheet transfer between cyclinders.. this is basically stuff all 0.004mm 0.005mm

Is this realy achievable.??
If your printing 320mm x 450mm 130gsm gloss/silk
with high coverage cmyk,, how little amount of movement would you class as exeptable,between gripper transfers.
we have a very slight sluring which you can mainly see towards the tail of the sheet and in the corners..
now at the moment, you can only see a movement in the trim targets with a 30x magnefying glass.
mainly only noticabe when printing say a black large coverage screen and of cause you get a slight ghosting from the consecutive cyclinders after the black..
So any info would be great we don't want to be going round in circles trying to achive something thats not achiveable.
Thanks ..
 

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