About Neodymium Magnets
This page addresses the most frequently asked questions about neodymium magnets often revolve around their properties, applications, and usage.
1. What are neodymium magnets?
This question seeks a basic definition of neodymium magnets and their unique characteristics.
2. How strong are neodymium magnets?
People often want to know about the magnetic strength of neodymium magnets and how it compares to other types of magnets.
3. What are the different grades of neodymium magnets?
This question explores the various grades and classifications of neodymium magnets, which are based on their magnetic properties.
4. What are the common applications of neodymium magnets?
People are curious about where neodymium magnets are used, such as in motors, speakers, and magnetic closures.
5. How are neodymium magnets made?
This question delves into the manufacturing processes and techniques used to create neodymium magnets.
6. Can neodymium magnets be customized or shaped differently?
People often inquire about the flexibility of neodymium magnets in terms of shape and size.
7. Are neodymium magnets safe to handle?
Safety concerns may arise when dealing with strong neodymium magnets, so people want to know how to handle them safely.
8. What is the temperature limit for neodymium magnets?
Users often ask about the operating temperature ranges for neodymium magnets and how extreme temperatures can affect their performance.
9. Where can I purchase neodymium magnets?
This question focuses on where to buy neodymium magnets, whether from local stores, online retailers, or specialty magnet suppliers.
Neodymium Magnets ( NdFeB Magnets ) were invented in 1980s and soon have become the major permanent magnets in replacing the old magnets for improved performance. The major reason is because of its wonderful magnetic characteristics, and specifically its strength and stability.
Neodymium magnets have a higher Maximum Energy Product, i.e. (BH)max than SmCo magnets (Samarium Cobalt magnets). (BH) max of neodymium magnets can easily reaches 30 MGOe and even goes up to 52 MGOe. Neodymium magnets can replace SmCo magnets in most cases, especially where the operating temperature is less than 80 degree Centigrade, though the temperature stability of neodymium magnets is not as good as SmCo magnets. The magnetic performance of the regular neodymium magnets will go down rapidly around 80 degrees Celsius but the specially made ones can work up to 220 degree Celsius. Compared to SmCo magnets, the corrosion and oxidation resistance of neodymium magnets are relatively low.
Neodymium magnets are the most powerful magnet developed so far and due to this reason and its affordable cost, neodymium magnets are revolutionizing magnetic products across all the industries. To give an idea of their strength, the neodymium magnets are between seven and fourteen times stronger than ceramic magnets so they are sometimes called super strong or powerful magnets. CMS magnetics, Inc. markets top quality neodymium magnets range from grade N27 up to N52 on the market and operating an online store www.Magnet4Sale.com with the most popular grades and dimensions.
Grade N52 neodymium magnets are the most powerful magnets so far and one grade N52 magnet measuring only ½” can have a pull force of 32 lbs.! Our shop carries a variety of these powerful magnets for sale to fit many different applications.
Neodymium magnets can be fabricated into many shapes and types:
- ring magnets
- cube magnets
- wedge magnets
- sphere magnets
- Magnetic Balls
- counter sunk hole disc magnets
- adhesive neodymium magnets
At Magnet4Sale.com, we also sell custom neodymium magnets and custom magnetic assemblies so we can help you find the best fit for your project specifications.
Neodymium Magnets in Action
Today, no matter where you go, you can always find neodymium magnets in action. In your home, refrigerator magnets, ear buds, jewelry cases and cell phones use this powerful magnet as a tool. Magnets are found in iPads, high end speaker systems, magnetic toys and hybrid cars. Neodymium magnets are extensively employed in big industry applications as well. From magnetic separators, lifters, sweepers and fishing systems to switches, precision-guided missiles and wind turbines. Since their invention in 1982, neodymium magnets are rapidly replacing the old and weak technology of ceramic magnets and incorporating their use into daily life.
A little Strong Magnets Knowledge that can help in the selection of your magnets.
- At CMS Magnetics & Magnets For Sale we sell magnets to the hobbyist and to industry with no minimum purchase. We get it to you FAST. CMS Magnetics & Magnets For Sale is rated A+ by the BBB. Our Customer Service people will help you over the phone if you have only a small idea what you need and gladly take your order right there over the phone. They do not work on commission, they really like to help people get it right and are some really nice people. Really! Or you can order on the website.
- A larger magnet of the same material and grade (think strength) will be stronger.
- In order of strength the strongest magnetic material first: Neodymium, Samarium Cobalt, Ceramic, AlNiCo.
- Ceramic magnets are the household magnets or the ones you probably played with as a child.
- If you have 2 magnets that are attracted to each other (stuck together) and you didn’t say “wow how am I ever going to get these separated?” They were not Neodymium. We can show you how to separate them.
- The least strong grade of neodymium (N32) is much stronger than the strongest ceramic magnets.
- Neodymium loses all of its magnetic strength at about 175o Fahrenheit.
- Neodymium corrodes in the weather (6 months) in the elements and it is a mess.
- Samarium Cobalt (SmCo) is a little more expensive and a little less strong but is a great substitute in the above conditions (#6 & #7).
- Do not let your children under about the age of 10 play with Neodymium magnets larger than 1 “ in diameter. They will get pinched. If they play with 2 magnets much larger than that they may get a finger broken. When I started working at CMS I almost got my finger broken by 2 21/2 “ magnets slamming together with my finger between them. Do not place these magnets into orifices of the body. Swallowing 2 small neodymium magnets will cause them to attract to each other along the digestive tract very possibly pinching inner linings and may puncture stomach or intestinal linings (NO JOKE HERE!)
- Most small scale hobbies will do OK with Ceramic magnets however, a refrigerator magnet or tea towel with a small neodymium magnet in it will NOT slide down the refrigerator.
- It is not advised that you make a kitchen knife Holder using a ceramic magnet, eventually someone will get hurt. Use Neodymium.
- All magnets are somewhat brittle. Treat a 1/8th in thick neodymium disc like fine china and it will last a lifetime. A neodymium Disc ½ inch thick is much stronger and the light hand is really not needed but it may still chip.