Impression pressure in Windmill 34x46 getting low for Diecut

Discussion in 'Letterpress' started by narayan, Feb 1, 2020.

  1. narayan

    narayan Member

    Joined:
    Dec 2009
    Messages:
    56
    Location:
    Nepal
    Hi we have been using this old machine since 4 years and about million impression die cut. Now the impression pressure needs to be set high (about 18-20) for the same job which ran perfectly at about 6 or 7 previously. The safety pin is not damaged and bushes also seems fine. What may be the reason ? Or the main bushes wore out? Can anyone figure out or advise?
     
  2. turbotom1052

    turbotom1052 Senior Member

    Joined:
    Oct 2008
    Messages:
    1,002
    Location:
    Vermont
    have you changed your underlay sheets recently?
     
  3. Linus

    Linus Member

    Joined:
    Sep 2011
    Messages:
    41
    Location:
    Portland
    May be main bush at the buttom wore out.
     
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