Cylindrical Cow Magnet (Product Code: SLE/MG/07) is an extra-strong, highly polished cylindrical metal magnet used as a compact strong-field demonstration magnet in physics classrooms and labs. It measures 1/2 inch in diameter and 3 inches long, and the design was originally used to protect a cow's stomach from metal, which gives students a memorable real-world example of magnetism. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside other physics lab equipment for schools in India.
| Parameter | Detail |
|---|---|
| Shape | Cylindrical |
| Diameter | 1/2 inch |
| Length | 3 inches |
| Material | Metal |
| Finish | Highly polished |
| Strength | Extra-strong |
| Original application | Protecting a cow's stomach from metal |
| Product code | SLE/MG/07 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
Cow magnets come from farming, where cattle can pick up stray wire or nails while grazing; this type of magnet was originally used to protect a cow's stomach from such metal. In the classroom, that story makes a good opening question about which materials a magnet attracts and why the shape suits the job. The smooth, rounded cylinder then serves as a strong hand-held magnet for lifting chains of paper clips, testing unknown materials and comparing field strength with ordinary bar magnets.
Because the magnet is strong and compact, it also works well under paper sprinkled with iron filings, where the pattern forms tightly around the two ends. The polished surface wipes clean after use; store it away from phones, cards and other magnets, and keep it out of reach of young children.
The Cylindrical Cow Magnet is supplied by Jain Scientific Equipments Private Limited, the company behind the ScienceLab name in Ambala, Haryana, India. It sources this item for schools, colleges and science centres that want a sturdy strong-field magnet with an interesting back-story.
Single pieces, class quantities and mixed orders with other magnets can be quoted together. Find out more about the company on our company profile.
Other strong magnets and field-viewing items for the same lessons:
Browse all teaching magnets in the Magnets category.
What size is the Cylindrical Cow Magnet?
The Cylindrical Cow Magnet (SLE/MG/07) is 1/2 inch in diameter and 3 inches long. This compact, rounded shape makes it easy for students to hold while lifting paper clips or testing which materials are attracted.
Why is it called a cow magnet?
The Cylindrical Cow Magnet takes its name from its original use: magnets of this kind were used to protect a cow's stomach from metal picked up while grazing. Teachers use the story to link magnetism to a practical, real-world problem.
What is the Cylindrical Cow Magnet made of?
The Cylindrical Cow Magnet is described as a metal magnet with a highly polished finish. For the exact magnet alloy of the current stock, please ask through our contact page before you order.
How strong is the Cylindrical Cow Magnet?
The Cylindrical Cow Magnet is an extra-strong magnet for its compact size. A measured field value is not listed on this page, so if your experiment needs a specific strength, contact us and we will advise before quoting.
Who supplies the Cylindrical Cow Magnet?
The Cylindrical Cow Magnet (SLE/MG/07) is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to schools, colleges, science centres and dealers in India and international markets.
For a quotation on the Cylindrical Cow Magnet, write to us through the contact page or add it to the enquiry cart with the quantity you need.
Last updated: 24 September 2026