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What are Cow Magnets?

Cow magnets 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 recticulum, 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 recticulum. One magnet works for the life of the cow!

Ru-Master 5 Cow Magnet
The patented design of the Ru-Master 5 improves upon the quality and longevity of the original heavy duty rumen magnet. In comparison, the Ru-master 5 is:

  • Durable Its durable structure boasts plated, solid steel end caps for corrosion prevention and a solid steel connector rod through the core to reduce breakage in shipping and handling. No plastic parts involved.
  • Stronger Magnetizaton before assembly creates a consistent pulling force from each section along the length of the magnet and enhances its overall strength.
  • Superior Characteristically, the Ru-Master 5 has rounder ends and is slightly heavier than the original heavy duty cow magnet. These qualities make it easier for the magnet to travel to the stomach and stay there.

Patent No. 5128644
The Ultimate Heavy Duty Cow Magnet!

A. Part No. DMRUM-5 - Measures 3/4” dia. x 3-3/8” long. Made in U.S.A.

Price : $5.95


Alnico 5 Cow Pill - A favorite of Dairymen and Vets for over 30 years!
This is the standard cast Alnico 5 cow magnet with bright, metal finish. It is non-toxic and non-corrosive in use.

B. Part No. COW-CP5 - Each measures 1/2” dia. x 3” long                     Price: $5.95


Ceramic Cow Magnet
This rectangular cow magnet is made of Ceramic 5 (Strontium Ferrite) magnet material. Its special magnetization pattern causes nails and other sharp metal objects line up along the length of the magnet where they are no longer a danger to the cow. The FDA-approved epoxy coating is gentle on the cow and helps protect the magnet from chipping. Rounded corners ensure safe and easy passage to the recticulum.

C. Part No. SCM-7 - Measures 1/2” x 3/4” x 2-3/4” long                Price:$1.37

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