Rolers Problem

Discussion in 'Heidelberg Printing Presses' started by printerscd, Mar 27, 2024.

  1. printerscd

    printerscd Senior Member

    Joined:
    Oct 2012
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    Location:
    Europe
    Hello

    We have problem in all units with rolers.
    If we print is very noisy run and in rolers is many ink in the water rolers.
    Never hapend before...
    Mashine Heidelberg CX 102-5+L 230mil. 2017 year

    Thanks
     

    Attached Files:

  2. Raf77

    Raf77 Senior Member

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    Location:
    United Kingdom
    All settings are correct?
    Noisy on vario off as well?
     
  3. printerscd

    printerscd Senior Member

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    Yes, settings are correct.
    If Vario is off, its ok.
     
  4. Raf77

    Raf77 Senior Member

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    If it's on all units, check your dampening solution (any chance to post a picture of screen with parameters?)
    Clean that rollers with plate cleaner and desensitize them with gum.
    Are you decalcifying rollers regularly?
     
  5. printerscd

    printerscd Senior Member

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    Yes, we decalcifying every friday.
    I will be check dampening solution....
     
  6. CSF

    CSF Member

    Joined:
    Feb 2019
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    Location:
    Chicago
    Calcium Slayer & Flush is an extremely effective way to clean and decalcify your rollers. The pics are from a recent Komori cleaning in the UK, but offer a glimpse of what the product is capable of doing for your Heidelberg. Available in the UK and Europe through https://press-pal.co.uk
    printerscd, however you accomplish it, I hope you resolve your roller woes soon. All the best !



    [​IMG]
     
  7. Adil

    Adil Senior Member

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    Location:
    Casablanca
    Hi sir
    Check your roller setting between the dampnening roller and degreaser roller.
    when you do the pre-inking you must activate the intermediary to transfer a layer of ink to the dampening roller before pressurizing the dampening system to avoid unstable emulsion at start-up
    Good luck
     
    turbotom1052 likes this.

  8. asem alsafady

    asem alsafady Senior Member

    Joined:
    Mar 2016
    Messages:
    180
    Location:
    Amman Jordan
    First, check your IPA percentage using alcoholometer, maybe your Alcosmart reading is wrong.
    Second, check your IPA quality, mix 10% IPA with water in a clean bottle, shake and wait for 15-20 minutes, if the mixture is clear then you know you have a good quality IPA, and if the mixture is foggy then you have to change your IPA supplier.
     
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