Lubricant Specialists

Lubricant Specialists

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Noel

Please help us in evaluating the delivery of lubricant.

Purchasing Engineer at Vitarich Corporation

We are planning to create procedure on receiving our lubricant deliveries. But we don't know how to start and what to evaluate specially on high temperature and food grade grease.
Right now, we are using Trial and Error Testing. We need to apply first before we evaluate.

Your suggestions is highly appreciated. Thank you

  • Comment (15)
  • May 25, 2012
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  • Andrew M.

    Andrew

    Andrew M.

    Managing Director - Lubrisolve Engineering Solutions Ltd.

    Hello Noel,
    I read with interest your question here and I think that this is a tricky one. If you actually want to check the quality and performance of your lubricant deliveries then I guess the only way really is to test random samples by laboratory means, that is if you have the right laboratory equipment conforming to typical ASTM or IP tests or the like, which are recognised world-wide, of course. ASTM D217 is the worked penetration test to determine the NLGI No., for example, if you're talking specifically about greases. In terms of a greases performance characteristics, other than believing the Technical Data sheets supplied with your lubricants for operating parameters and trusting that the lubricants supplied actually match the TDS's, you would have to conduct performance tests, which would be quite arduous. If you are wanting to check the food grade characteristics then of course the literature is important to include the H1 certification and that would be quite difficult to check and verify yourself as you would have to check the formulation. Hope this helps.

  • Josef B.

    Josef

    Josef B.

    specialist in lubricating greases & oils

    Hello Noel.

    First of all you should have mutual agreed specifications on the lubricants with your supplier. This in combination with an ISO 9001 certification should already create some confidence. Each delivery must include a certificate of analysis. I agree with Andrew that you should run some tests (which are part of the specification) of the first batches to confirm the data submitted in the certificates. If the data are in line you can expand to e.g. every third or fifth batch and by the time you can eventually skip your own testing completely.
    Concerning your specific question on high temperature and food grade grease the answer is a bit more complex. What do you understand as a high temp grease? There are usually life time tests showing if a grease can function for a certain time span under high temperatures. Usually end-users do not have these tests. What you could do in this case is a simple oxidation test. Put some grease by means of a template on a glass-plate and/or steel plate and put it in an oven at elevated temperature and check it for signs of oxidation/ageing from time to time. Precise parameters you can discuss with your supplier.
    For the food grade grease it very much depends what they are used for. Without knowing this it is not possible to recommend a suitable test.
    Hope this helps a bit. If you have further questions, just let me know josef.barreto@tunap.com

  • vijay D.

    vijay

    vijay D.

    General Manager R&D at Standard Greases & Specialties Pvt. Ltd.

    Hello Noel,
    You can do one more thing.Please check If the food grade greases you are getting are registered with NSF or ISI,UK.All food grade lubricants are to be registered with NSF or ISI you can also check yourself on the net on the sites of NSF. This will confirm that you are getting Food Grade Greases only.

  • Muzaffar

    Muzaffar A.

    Secretary at Lubricants Business Society of Pakistan (LBSP)

    could you please elaborate your query,is this regarding delivery procedure for guarantying the quality of the delivered product during custody transfer of purchased lubricant or the purchase quality/specification of the product for specific use.There is a standard procedure for custody transfer case developed by American society of testing material,ASTM which may be referred. Thanks.

  • Noel P.

    Noel

    Noel P.

    Purchasing Engineer at Vitarich Corporation

    Hello everyone!
    Thanks for your shared technical ideas on my post.
    I would like to give you an idea where we apply this two grease. We are using our high temperature grease in our extrusion plant with direct contact with steam and also on the machine with high speed rotation. And we are using food grade grease on the machine with direct contact with our product like pellet mill.
    Regarding on our food grade grease, I required all my supplier to submit certificate certified by Food and Drug Administration which required by ISO9001.
    To Mr. Muzaffar Alam; I am more on the procedure on how to accept the grease were using. We have a list of suggested lubricants given by the machine manufacturer but we want to explore other brand with the same application. But its hard for us to know on how to evaluate other grease coming from different supplier.
    I will try to look a copy on how to evaluate grease based on ASTM that you mentioned on your previous comment.
    Regarding on your suggestion using oven sir and random sampling, this is very useful to our company with limited budget for expensive equipment.
    I deeply appreciate all your comments and views and I hope that you can help me to finalized my procedure on the next days.
    Thanks and have a blessed day to everyone.

  • Andrew M.

    Andrew

    Andrew M.

    Managing Director - Lubrisolve Engineering Solutions Ltd.

    Noel,
    Having read your latest post here's a bit more advice for you. If you want to compare the different lubricants as recommended by the machine manufacturer, and this can be quite daunting, you need someone with a bit of lubricant knowledge to check out their individual properties as is usually stated on their respective Technical Data Sheets. Sometimes the TDS's are quite comprehensive and other times they are not so. If your concern is with the food grade quality you don't need to bother yourself with the FDA certificate, as all you need is the H1 certificate because if a food grade grease is certified to H1 this means that the ingredients have been checked against the FDA ingredients. This is how I would handle your problem. Firstly get the lubricants right for the applications in terms of the type, quality etc. Then get the right products selected. Then get all your certification sorted out. My honest opinion is that you really could do with a lubrication knowledgeable person for all of this as it can get quite a bit involved. Bear in mind also that if you are looking at an application where there is a possibility of direct contact of the lubricant with the food then H1 will not be good enough, you'll need 3H. I don't really think that you need to bother yourself with conducting laboratory type tests on your own to validate lubricants as you'll be getting into deep water there.If only I was a bit nearer I'd call in and give you a hand, as I look at applications like this all of the time and resolve similar issues. However, with technology as it is now perhaps we could do a bit remotely? Let me know as I know I can sort your problem out for you and let you have a bit of peace of mind. Best regards.

  • Desmond C.

    Desmond

    Desmond C.

    Lubrication Consultant at Interflon Singapore

    Noel,
    Go to website www.interflon.com for certified first grade lubricants that saves you money and lower your power consumption.
    Food grade certified by NSF,ISO certification.
    Look for your representative in PHILIPPINES.
    Regards
    DESMOND CHEN
    SINGAPORE

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