Vacuum pump

Discussion in 'Heidelberg Printing Presses' started by Ricardo, Jun 2, 2020.

  1. Ricardo

    Ricardo Member

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    Which one has more power? Which one blast more air?
     

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  2. Mathew

    Mathew Senior Member

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    It depends on application. Do you need more pressure or more vacuum?
     
  3. Ricardo

    Ricardo Member

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    I need more vacuum.
     
  4. Mathew

    Mathew Senior Member

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    Then take the bigger one
     
  5. CHOCK

    CHOCK Senior Member

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    The Vacuum pump, that has 1500mbar is more powerful.

    Blessing
     
  6. Ricardo

    Ricardo Member

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    Thank you.
     
  7. precision1984

    precision1984 Member

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    Are you certain it’s a pump issue?
     
  8. Ricardo

    Ricardo Member

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    I’m having problems with the suction of the vacuum. I cleaned one of the valve that is located on the drive side of the press and I got a little better but I think it is not strong enough. I run a Heidelberg 102 zp 1994 cp tronic. I’m running the slow down wheels, the pick up sucker and the blast on the feeder with the 500 bar pump.
     

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  9. junker1984

    junker1984 Senior Member

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    Are you in possession of both of the pumps pictured above? When I read your initial post, I took your question as you were wondering which one to buy. Are the both running on your press now? Have you done the maintenance on them? Have filters been checked? Are the gaskets in the yellow canister in place, preventing powder from being drawn back into the pump?
     
  10. Ricardo

    Ricardo Member

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    Both pumps are in the press. Maintenance is done every Monday: filters clean and grease. Does anyone know what it’s the right pump that I need in a Heidelberg 102 zp 1994? How many bar do I need to run the feeder suction, slow down wheels?
     
  11. Mathew

    Mathew Senior Member

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    As far as I know, these machines were equipped by RIETSCHLE DCLF130DVV compressors. They have 130m³ +/- 0.7 bar. Instead of graphite lamelas, they have steel blade. I'm quite sure these type compressors are obsolete and you can't find them in the market. The replacement for this compressor is KTA/DVT130 from RIETSCHLE. It has same performance but less maintenance.
     
  12. Ricardo

    Ricardo Member

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    do you think this pump is enough?
     

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  13. Mathew

    Mathew Senior Member

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    Yes, it is enough. Did you check if the tubes are fine? Is there any leakage in vacuum line?
     
  14. Ricardo

    Ricardo Member

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    I checked everything and it’s ok. No leaks. After I clean that valve it got better.
     
  15. junker1984

    junker1984 Senior Member

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    Only weak on the vacuum side? Have you looked at the carbon vanes in the compressor?
     
  16. junker1984

    junker1984 Senior Member

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    I think the new compressor to match the DCLF 130 IS THE Druvac 150.
     
  17. Ricardo

    Ricardo Member

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    Not enough vacuum, not enough blast. The vanes are ok.
     
  18. junker1984

    junker1984 Senior Member

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    By "the vanes are ok", do you mean they are all in one piece, or you've checked the dimensions, proving they've not been worn down to a minimum allowable length? Do they all move freely in their slots?
     
  19. contractor

    contractor Member

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    You could also try and clean the rotary valve on the feeder head - the ports inside sometimes block up. Make sure you mark the hoses
     

  20. Ricardo

    Ricardo Member

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    We had a mechanic look at the pump. He said the pump it’s ok. It’s with in specs. That’s what my debate it’s all about. If everything is ok, why running cover stock is a pain in the bud to run? If it’s me, I want to know. If I find up it’s me, I will quit.
     
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