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Thread: New machine evaluation / testing

  1. #1
    Join Date
    Oct 2014
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    BAHRAIN
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    New machine evaluation / testing

    We are in the process of procuring new PVC injection molding machines and we have to test the machines at the machine manufacturers side. Does anyone suggest what are the important points should consider while testing machines. Some of the scope includes
    • fill time consistency
    • shot size consistency
    • transfer time consistency
    • load sensitivity test
    • pump motor vibrations/abnormal sound
    • hydraulic leaks


    Does anyone can help with a format/template for machine evaluation form.... Thanks in advance

  2. #2
    Join Date
    Aug 2011
    Posts
    496

    Re: New machine evaluation / testing

    Are these new presses?
    KOM
    brent

  3. #3

    Re: New machine evaluation / testing

    Looks like you've got the main ones...... RJG has a tryout/performance list, I can't remember if it has anything you don't, but it would be worth a look.

    Joel

  4. #4
    Join Date
    Aug 2014
    Location
    Saint Paul, MN
    Posts
    101

    Re: New machine evaluation / testing

    Stating the obvious, but – check and double check all safety features.

    Watch the barrel heats to see how far they fluctuate.

    Do a fill linearity study: Make shots at a range of speeds from maximum to very slow. Record actual fill time. Graph fill time versus speed setting. It should give you a dead straight line. If the line falls off at the top end, the machine is not producing the speed it claims it is.

  5. #5
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    Oct 2014
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    Re: New machine evaluation / testing

    Quote Originally Posted by brentb View Post
    Are these new presses?
    KOM
    brent
    hi Brent,

    These are new machines.

  6. #6
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    Oct 2014
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    BAHRAIN
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    Re: New machine evaluation / testing

    Hi Jay,

    Thanks for the help

  7. #7
    Join Date
    Oct 2014
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    Re: New machine evaluation / testing

    hi Joel,

    Thanks for the help. Sure will check it ..

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