80gsm offset feeding problem

Discussion in 'Ryobi Printing Presses' started by northern-andy, Oct 19, 2021.

  1. northern-andy

    northern-andy Member

    Joined:
    Jun 2011
    Messages:
    35
    Location:
    new zealand
    Does anyone have a sure fire way of printing 80gsm offset at speed, every other stock is fine. I've tried so many ways with sheet separators/ air/ suckers that I'm loosing my will. Does anyone use brush sheet separators, as we have not got any
    I've aired the stack thougherly with air gun as I originally thought it was a static problem.
    Cheers
     
  2. printerdan

    printerdan Member

    Joined:
    May 2014
    Messages:
    31
    Location:
    S.E. Michigan
    Coated or uncoated?
    What size?
     
  3. northern-andy

    northern-andy Member

    Joined:
    Jun 2011
    Messages:
    35
    Location:
    new zealand
    Uncoated, SRA2.
    We recently had the feeder clutch rebuilt, every other stock runs great.doesnt matter where the sheet separators are or position of suckers etc, I just can't get any consistency out my settings
     
  4. printerdan

    printerdan Member

    Joined:
    May 2014
    Messages:
    31
    Location:
    S.E. Michigan
    The guy I work beside removes the suckers for that weight stock, consistently.
    I didn't want to be bothered pulling off and putting suckers on but I'm doing it more and more depending on the machine.
    No sucker feet, full vacuum. Adjust blow, bail bar and pile height. Makes a real popping sound as the sheet is released.
     
  5. northern-andy

    northern-andy Member

    Joined:
    Jun 2011
    Messages:
    35
    Location:
    new zealand
    Wow, I've never heard of that before, but if that works il definitely try it.Next time 80gsm offset is on.
    Thanks for your input
     

  6. printerdan

    printerdan Member

    Joined:
    May 2014
    Messages:
    31
    Location:
    S.E. Michigan
    It's actually as described in the operators manual
     
Loading...