Cow magnets are popular with dairy farmers and veterinarians to help prevent Hardware Disease in cattle. While grazing, cow eats everything from grass to nails and staples. Metals will hurt cow’s stomach and cause disease, know as Hardware Disease. The cow loses its appetite and decreases milk output. Cow magnet prevent this disease by attracting metals. One magnet works for the life of the cow.

There are mainly four kinds of cow magnet.

1, alnico cow magnet

Material: alnico 5 magnet

Size: 0.5’’ diameter x 3’’ height

Weight: 70g/piece

(PS: Alnico magnet has soared sharply since raw material cobalt, nickel etc went up around 30% rencently)

2, ndfeb cow magnet

Material: ndfeb magnet inside with stainless steel outside

Size: 0.5’’ diameter x 3’’ height

Weight: 74g/piece

3, ferrite cow magnet

Material: ferrite magnets with steel plates and end caps

Size: 0.75’’ diameter x 3’’ height

Weight: 120g/piece

4, ceramic cow magnet

Material: ceramic magnets with ABS plastic cage outside

Size: 35mm diameter x 100mm height

Weight: 120g/piece