Magnets, Rod magnets
are Cow Magnets?
Cow magnets are rod
magnets with rounded ends. They are usually about 3" (75mm) long and
1/2" (12mm) diameter. These are popular with dairy farmers and
veterinarians to help prevent Hardware Disease in their cattle. While grazing,
cows eat everything from grass and dirt to nails, staples and bits of bailing
wire (referred to as tramp iron). Tramp iron tends to lodge in the honeycombed
walls of the reticulum, threatening the surrounding vital organs and causing
irritation and inflammation, known as Hardware Disease. The cow loses her
appetite and decreases her milk output (dairy cows), or her ability to gain
weight (feeder stock). Cow magnets help prevent this disease by attracting stray
metal from the folds and crevices of the rumen and reticulum. One magnet works
for the life of the cow!
Other Uses of Cow Magnet
Cow magnets are also
one of the most favorite shapes of magnet for science experiments.
Students use the cow magnet to make electric generators, observe magnetic
lines and perform other magnet related experiments.
Any cow magnet may be used
for cows; however, not all cow magnets are suitable for science experiments and
industrial applications. Please use this selection guide to determine which cow
magnet is best for you.
Alnico magnets are made
primarily from Aluminum, Nickel and Cobalt. They may also contain copper, iron and sometimes titanium. We
only offer magnetically strong ALNICO cow magnets.
D x L
|Just for Cows
14 x 62mm
|For cows, Science
experiments, and Industrial applications.
1/2" x 3"
cow magnets directly from MiniScience please click any of the part numbers
Cow Magnets Selection Guide:
COWMAG1462 is a Rare Earth Magnet (NdFeB)
encapsulated in a Stainless Steel container.
COWMAG1462 is a low cost strong magnet
recommended for cows; however, due to its composite structure and the almost
invisible capsule seam in the center, it will have a distorted magnetic field
that make it unsuitable for science education.
COWMAG1462 is not recommended for science
experiments and industrial applications where the magnet may be subject to
pressure or vibration.
Uses (Science Experiments, Cows and Industrial Applications)
COWMAG is our highest quality ALNICO5 cow
magnet made by casting method from molten alloy. It has a smooth surface
and the ends are rounded by grinding. COWMAG is the strongest ALNICO
magnet with 24% cobalt.
COWMAG provides both physical strength
and magnetic strength.
COWMAG may be used for cows,
science experiments and industrial uses as long as it is protected against
COWMAG magnets are 3" long
and 1/2" in diameter. (D12.63 x L76.2mm)
No more sintered ALNICO
Sintered ALNICO magnets have similar magnetic strength
as casted ALNICO magnets; however, they lack physical strength because they are
made of compressed metal powder. Sintered magnets brake if fallen on a hard
surface. We no longer carry sintered ALNICO magnets.
Get Wholesale Discount on
MiniScience is a wholesale distributor of cow
magnets; however, small orders are also accepted online. For order quantities of
more than 1000 please call MiniScience directly. All other orders must be placed
Distributors of scientific and educational products
Where to buy?
Most pictures are linked to
the pricing and online store for fast and convenient ordering
Our products are available at the following
online stores. For large orders please call in advance and verify the
availability, wholesale discounts and shipping options. If you cannot find any
product in the online store of your choice, please use the search option of the
store or call (973)777-3113 for further assistance.
All orders will be shipped from our
warehouses in United States (USA), Canada or United Kingdom. We ship worldwide
to most countries including U.S., Canada, Australia, United Kingdom, New
Zealand, Germany, France, Netherlands, and many other countries.