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Inc. Cast Alnico 5 Cow Magnet, 1/2' Diameter x 3' Long, Ground Finish on The Diameter. 5- Pack

5.0 (1) Write Review
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$30.00

$ 13 .99 $13.99

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About this item

  • Prevents Hardware Disease in Cattle.
  • ~1/2" Diameter x 3" Long with the magnetic poles at the two ends. They are a solid casting and the diameter is ground to size.
  • Made from powerful Alnico Magnet Material (Aluminum/Nickel/Cobalt) which was developed in the early 1930's.
  • These magnets handle high temperatures and are resistant to demagnetization.
  • These magnets are non-toxic and non-corrosive in regular use.


These Cast Alnico 5 "Cow" Magnets were the original magnets developed to be inserted in a cow's stomach to collect any ferrous metals that a cow may unknowingly ingest while grazing. This prevents what is called Hardware Disease in cattle. They are great for a multitude of projects all limited by your imagination. AZ Industries, Inc. has been in business for over 50 years.


Jennifer S.
2024-12-10 13:47:17
Bought these for my daughter's science project. Simply measuring iron in cereal. How does a magnet break in half like this? Wasn't dropped, wasn't smashed, nothing. Yet here we are.