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coffeebean
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Join Date: Jun 2006
Location: Central America
Posts: 227
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Rubber/polymer lined cylinders for rice dehusking machines

11/14/2007 11:04 PM

Anyone out there familiar with rice mill equipment? I have one question regarding the rubber/polymer lined cylinders used on rice dehusking machines. What is the liner material? Is it a compunded rubber material or is is polyurethane. I have a sample worn out cylinder right in front of me. Is there a layman´s test to tell whether the liner is a rubber blend or PU? Any hints will be appreciated?
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Anonymous Poster
#1

Re: Rubber/polymer lined cylinders for rice dehusking machines

11/15/2007 12:21 PM

You can try burning a VERY small sample of it. Polyurethane has a very distintive smell when it burns. If you are not familiar with it, find a sample of known urethane and test it first and compare odor. Of course you want to just get the odor and do not want a lungfull there are toxic compounds present.
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coffeebean
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Location: Central America
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#2
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Re: Rubber/polymer lined cylinders for rice dehusking machines

11/15/2007 1:14 PM

That´s a start. Thanks for the word of caution.
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Humble Ess
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Join Date: Oct 2007
Posts: 98
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#3
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Re: Rubber/polymer lined cylinders for rice dehusking machines

11/16/2007 1:12 AM

Generally, PU is used for the application because of better abrassion resistance. If the existing material colour is other than black, there is a better chance of it being PU.
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