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Magnets and Screens as OPRPs


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#1 nfred21

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Posted 24 September 2018 - 06:06 PM

Hello!

 

We are working on implementing FSSC 22000! I have just worked on reviewing the existing HACCP and revising it for compliance to FSSC 22000.  I have a few questions in regards to the following

 

I have identified our Rare Earth Magnets and Screens as OPRPs based on our process.   

 

1) What critical limits have been set on Magnet and Screens for those sites with them in place

 

2) What Validation/Verification activities did you conduct?

 

3) For the Magnet we are currently using the pull test, which I would like to stop and move to a Gauss Meter, does anyone have experience with the meter and have a brand they recommend? 

 

 

Thank-you in advance for any insight to the above :) 

 

 



#2 012117

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Posted 25 September 2018 - 02:42 AM

Hi, Nrfred.

 

What product do you produce? I always find it hard to validate magnet depending on the criteria you used.

 

But anyway, here are my thoughts on it and the process I will recommend to use.

 

In my experience we always use limit for foreign material to be as low as technically possible but it should not be greater than 2mm (for the size), for other limits, we use for sieve that it should be intact and correct fitting and all product must flow through the sieve. For magnet, same, correct fitting and the magnet strength should be equally distributed between housing and magnet bars. Usually, it is recommended to have 2 layers of magnet to consider equal distribution and maximum retention given the flow of product.

 

 

Before implementation, we validate the plan, for example if we say that this should be inspected every 8 hours, then our production run should have window every 8 hours allotted for inspection which means the set-up must be capable to be easily dismantled for inspection and cleaning. That there should be sufficient lighting and space for inspection and dismantling. For magnet, it should also be aligned with your operating condition (e.g. temperature). For sieve, if you use it in combination with magnet, it is preferred to be the magnetizable type. As if not, what benefit is the installation of the magnet add?

 

AS for the sizes and magnet strength, we request LOG from supplier. For the sieves, we measure opening randomly for 30 openings using caliper using certified test balls or rod. For magnet we use gauss meter individually and between magnet. For the gauss meter, we usually oustource that one.

 

For magnet we then allow to pass product containing the identified contaminant and pass through it for 30 times

 

AS for verification of the equipment, we repeat the measurement every year. AS for verification of the system, we check inspection record if it is being done as per plan.



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#3 CSL QC/QA

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Posted 27 September 2018 - 08:52 PM

3) For the Magnet we are currently using the pull test, which I would like to stop and move to a Gauss Meter, does anyone have experience with the meter and have a brand they recommend?

 

 

Hi, I would suggest the CESCO Gauss-meter. Great service and reliable product. 

Good luck

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#4 Charles.C

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Posted 27 September 2018 - 09:36 PM

Hello!

 

We are working on implementing FSSC 22000! I have just worked on reviewing the existing HACCP and revising it for compliance to FSSC 22000.  I have a few questions in regards to the following

 

I have identified our Rare Earth Magnets and Screens as OPRPs based on our process.   

 

1) What critical limits have been set on Magnet and Screens for those sites with them in place

 

2) What Validation/Verification activities did you conduct?

 

3) For the Magnet we are currently using the pull test, which I would like to stop and move to a Gauss Meter, does anyone have experience with the meter and have a brand they recommend? 

 

 

Thank-you in advance for any insight to the above :) 

 

Hi nfred,

 

JFI, OPRPs are not associated with critical limits.


Kind Regards,

 

Charles.C


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#5 nfred21

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Posted 04 October 2018 - 12:52 PM

Hi nfred,

 

JFI, OPRPs are not associated with critical limits.

 

Ok so for OPRPs do I need any limits or is it more of a qualitative requirement?  Like "Inspect Screens" and then it is just that the screens are inspected or "Replace Filter" and then if the filter is not replaced it is a correction to replace the filter?

 

Thanks in advance!



#6 nfred21

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Posted 04 October 2018 - 12:55 PM

 

 

Hi, I would suggest the CESCO Gauss-meter. Great service and reliable product. 

Good luck

THANK YOU SO MUCH! 






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