Strongest Rare Earth Magnets: Insights and Highlights
Note: We have researched 13 rare earth magnets for you.
Last updated on 28.06.24 um 02:07
The quest for the mightiest magnetic forces leads us into the realm of rare earth magnets, where strength is taken to new extremes. Commonly crafted from alloys of neodymium, samarium-cobalt, and others, these powerhouses are an integral part of modern technology, from electronics to industry and beyond.
This examination seeks to elucidate the differences among the elite members of this category, highlighting their power, durability, and utility. We navigate through a myriad of applications, comparing these super-powerful options to determine which magnet stands out in the world of heavy lifting and magnetic magic.
This examination seeks to elucidate the differences among the elite members of this category, highlighting their power, durability, and utility. We navigate through a myriad of applications, comparing these super-powerful options to determine which magnet stands out in the world of heavy lifting and magnetic magic.
To simplify the price comparison, we determine the prices for the individual articles on Amazon, Ebay and other shops and link the offers via partner links where applicable. This means that we receive a commission if you buy something that we recommend - the price does not change for you.
Pictured: Neosmuk Magnets with Screws
What to Look for in Strongest Rare Earth Magnets
Important criteria
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High magnetic force
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Corrosion resistance
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High coercivity
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Operating temperature range
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Physical stability
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Grade and composition
1.) Magnet Strength and Grade
Rare earth magnets, particularly neodymium magnets, come in various strengths and grades which are designated by an 'N' rating (e.g., N35, N52). Higher ratings indicate stronger magnets, with N52 being one of the strongest commercially available. When purchasing rare earth magnets, it's important to determine the required strength for your application. Overly powerful magnets may be dangerous or could damage sensitive materials, while those not strong enough could prove ineffective.
2.) Size and Shape Considerations
Rare earth magnets come in various shapes and sizes, which directly impact the magnetic field and how the magnet can be used. Disc, ring, block, and sphere shapes each have different surface areas and magnetic field distributions, affecting their holding capacity and functionality. Be sure to select a shape that fits the specific requirements of your task, considering the magnet's size regarding where it will be placed and the space that is available.
3.) Coating and Corrosion Resistance
The majority of rare earth magnets are susceptible to corrosion, therefore most are coated to prevent such deterioration. Common coatings include nickel, copper, zinc, or epoxy. The choice of coating should be influenced by the environment in which the magnet will be used; for instance, in humid or outdoor settings, a more robust, corrosion-resistant coating is necessary. Evaluate the durability of the coating to ensure longevity and consistent performance of the magnet.
4.) Safety and Handling Precautions
Handling strong rare earth magnets requires caution due to their powerful magnetic fields that can attract metal objects at high velocities, posing injury risks. Small magnets are a choking hazard and should be kept away from children and pets. It's also important to keep rare earth magnets away from electronic devices and magnetic media to prevent data loss or damage. Proper storage and handling are essential to maintain safety and preserve the integrity of the magnet.
The Strongest Rare Earth Magnets of our Choice
Our Pick
VSKIZ Neodymium Magnets Bar 66Pcs,5 Different
Size: Mix-66Pcs
Properties
- Powerful magnetism from neodymium iron boron material.
- Good Ni+Cu+Ni triple coating for rust-resistance.
- Smooth surface for easy removal without scratches.
- 5 sizes of bar magnets in a plastic case.
- Caution: small neodymium magnets are fragile.
$ 7.99 *
View
on Amazon
2
MIN CI 12Pcs Neodymium Cup Magnet with Holes
Type/Color: Silver
Size: D20mm_12P
Properties
- Neodymium magnet stronger than ferrite magnets
- Three-layer electroplating for enhanced suction
- Supports custom sizes with holes, 0.79inch diameter
- Rare earth magnets wrapped in protective steel cup
- Durable, withstands temperatures up to 176°F
- Easy installation with screws, rust-proof surface
- Multipurpose for hanging, organizing metal objects
- Great for workshops, garages, kitchens, DIY projects
- Includes 12 magnets and stainless screws
- Manufactured by MIN CI specializing in high-quality magnets
$ 9.98 *
View
on Amazon
3
TRYMAG Rare Earth Magnets
Type/Color: Black
Size: 40Lbs-12PCS
Properties
- Magnets coated for durability and rust-resistance.
- Strong round base magnets with incredible holding power.
- Simple installation with included mounting screws.
- Suitable for use on metallic and non-metallic items.
- Neodymium cup magnets have wide variety of uses.
- Professional neodymium cup magnets seller with customization options.
$ 12.99 *
View
on Amazon
4
MIKEDE Black Rare Earth Neodymium Magnets
Size: Black
Properties
- Neodymium magnets made of premium rare earth metal
- Ultra strong and permanently magnetic with 60*10*3mm size
- Perfect for crafting and tool storage of supplies
- Triple plating process for durability and shining surface
- Ideal rust resistant protection with Ni+Cu+Ni coating
- Smooth surface without scratching refrigerator or board
- Useful for tool storage, whiteboard magnets, DIY, and more
- Made under ISO 9001 Quality Systems by MIKEDE MAGNETS
$ 9.99 *
View
on Amazon
5
LOVIMAG Strong Magnets,150lb+ Waterproof Super Strong
Type/Color: Silver
Size: 150lbx10p
Properties
- 1.42 inch industrial strength round base magnets
- Made of neodymium rare earth magnetic material
- Unbelievable holding power, up to 150 pounds
- Triple layer coated for shiny, rust resistant protection
- Very durable with precision mechanical vehicles
- Steel cups protect magnets, increase longevity
- Smooth surface, one-off appearance for easy use
- Versatile for home, business, and school scenarios
- Holding, lifting, fishing, closing, retrieving, blackboard, refrigerator
- Quality guaranteed under ISO 9001 systems
- Be careful not to collide with other metal objects
- Contact us freely with any questions
$ 18.99 *
View
on Amazon
6
FINDMAG 12Pack Rare Earth Neodymium Magnets
Size: N25
Properties
- Select magnet strength from N25 to N52.
- Triple-layer Ni+Cu+Ni coating for protection.
- N-grade magnets for various applications and capacities.
- Precision dimensions of 60mm x 10mm x 3mm.
- Safety guidelines to maximize magnet longevity.
$ 6.99 *
View
on Amazon
7
TOP MAGNETS 110LBS Strong Magnets
Properties
- Versatile magnets for various scenarios
- Neodymium magnets with strong holding power
- Durable and long-lasting steel cup magnets
- Rust-resistant and waterproof with triple-layer coating
- Professional service and high-quality products
$ 10.99 *
View
on Amazon
8
DIYMAG 40x20mm Super Strong Neodymium Disc Magnet
Size: 40*20mm 2P
Properties
- Made from strong neodymium-iron-boron alloy (NdFeB)
- Stylish nickel coating (Ni-Cu-Ni) with silver surface
- Magnetized axially with max operating temp of 80°C
- Nickel-Copper-Nickel triple layer coating for durability
- Ideal for DIY craft projects, science projects, and more
- Useful for finding studs, fastening, lifting, hanging objects
- Dimensions: 40mm diameter x 20mm thickness
- Tolerances: ±0.2mm x ±0.2mm
- DIYMAG is a professional brand specializing in magnets
9
Neosmuk Rare Earth Magnets
Properties
- Super Powerful - strong, sturdy, reliable industrial-grade magnet
- High-Level Plating - nickel-copper-nickel coating for rust-free finish
- Portable Size - 1.26" diameter, 0.126" long, easy to carry
- Extra 3M Adhesive Backing - expands magnet application
- Permanent Neosmuk Neodymium magnets, lasting magnetism
$ 11.99 *
View
on Amazon
10
FINDMAG 40 x 20mm Neodymium Magnet
Size: 40x20mm-1P
Properties
- Premium magnet with triple layer coating.
- Powerful neodymium magnets for any project.
- Wide range of applications for DIY and science.
- Convenient size for use and display.
- Professional magnet seller with wide range of options.
$ 13.99 *
View
on Amazon
11
Neosmuk Magnets with Screws
Type/Color: Silver
Size: 40 lb
Properties
- SUPER POWERFUL Neodymium ring magnets with screw holes.
- HIGH-LEVEL PLATING nickel-copper-nickel coating provides rust-free finish.
- Magnets with Mounting Holes 0.79-inch diameter, 10-pack quantity.
- VERSATILE USE can be bolted to any surface easily.
- Permanent 40lb pot magnets with hole, lasting magnetism.
$ 7.99 *
View
on Amazon
12
VSKIZ Rare Earth Magnets 60Pcs
Size: Mix 60pcs
Properties
- Small neodymium magnets in 3 sizes (60 total)
- Comes in a high-quality plastic box
- Rust resistant with brushed nickel finish
- Smooth surfaces to prevent scratching
- Versatile uses in various applications
- Professional small magnets seller
$ 6.97 *
View
on Amazon
13
MIN CI 30Pcs Super Strong Rare Earth Magnets Disc
Type/Color: Silver
Size: 20mm x 3mm 30pack
Properties
- Neodymium magnets are stronger than ferrite magnets.
- Variety of sizes available to meet your needs.
- Support for custom sizes.
- Three-layer electroplating for durable appearance.
- Diameter 20mm thickness 3mm.
- Production batches vary.
- Size variations exist within 0.4mm (0.015in).
- Widely used in crafting, jewelry, photos, DIY, science, cabinets, and more.
- Multifunctional push pins for various applications.
- Perfect size for easy use.
- Satisfaction guarantee and friendly customer service.
$ 21.98 *
View
on Amazon
* All prices incl. VAT, plus shipping if applicable. Prices, delivery times and costs may change in the meantime. The selection of products was made independently of the manufacturer and without any claim to completeness. All links to products are external partner links through which we may receive compensation. All information without guarantee.
Top Rare Earth Magnets for Varied Needs
Hobbyists & Crafters
For those who love DIY projects and crafting, finding the right magnet is key. These recommendations help ensure your creations have the magnetic hold they need without compromising on shape and size.
Industrial Use
Professionals seeking robust and reliable magnetic solutions for machinery or heavy-duty applications will benefit from this curated list. Ensure your industrial needs are met with the right magnet selection.
Education & Science
Educators and science enthusiasts can explore magnets that demonstrate the power of magnetism. Discover magnets that offer a blend of strength and safety, perfect for educational settings.
Home & Office
For home or office organization, the right magnet makes a big difference. Our suggestions feature magnets that balance strength and usability, ideal for fridge magnets or organizing workspaces.
Questions You Might Ask
Rare earth magnets are strong permanent magnets made from alloys of rare earth elements. The most common types are neodymium (NdFeB) and samarium-cobalt (SmCo) magnets which are known for their excellent magnetic strength and resistance to demagnetization.
Rare earth magnets are preferred for their stronger magnetic field strength and stability. They have a higher coercivity, which means they can sustain their magnetic properties at higher temperatures and resist demagnetization more effectively than ferrite or alnico magnets.
When buying a rare earth magnet, consider the strength (grade), shape, size, coating (to prevent corrosion), and maximum operating temperature. Additionally, the specific application will dictate the type of magnet and any customization needed.
Yes, rare earth magnets can be dangerous if mishandled. They can snap together with great force, posing pinching hazard to fingers or skin and potential damage to the magnet. Small magnets pose a choking hazard and should be kept out of reach of children. Magnets can also affect pacemakers and other electronic devices, so caution is required.
Rare earth magnets should be stored in a dry, room-temperature environment and separated by a piece of cardboard or other spacer to reduce magnetic attraction force. If coated, the coating should be kept intact to prevent corrosion. Handling should be done carefully to avoid chipping or cracking the magnets.
Currently Active Poll
How to Choose the Strongest Rare Earth Magnets
Embarking on a project that requires the mightiest magnets? You're in the right place! Rare earth magnets, particularly those made from Neodymium, are renowned for their exceptional strength and compact size. However, selecting the perfect magnet for your needs involves understanding various aspects such as grade, coating, and shape. Fear not, magnet enthusiast, this guide is your compass to navigating the world of super-strong rare earth magnets. Let's demagnetize the complexity and find the powerhouses that you need.
Understanding Magnet Grades
When it comes to rare earth magnets, the grade is everything. It tells you about the magnet's maximum energy product, which basically describes how much magnetic energy is stored within. Grades typically range from N35 to N52 – higher numbers signify stronger magnets. But keep in mind, with great power comes great responsibility; higher grades can be more brittle and prone to cracking or chipping.
It's not just strength you should worry about. Temperature tolerance varies with different grades. You might find a magnet that's incredibly strong, but if it's going to be used in high-temperature environments, you'll want a grade with a high Curie temperature. Ensure the grade you choose aligns with your specific application to prevent loss of magnetism when things get hot.
Remember, the grade affects the price. As a rule of thumb, as magnet strength increases, so does the cost. Balance your budget with the performance requirements of your project. Sometimes a slightly lower grade, like an N42, can provide a good balance between strength, durability, and cost.
The Significance of Coatings
Rare earth magnets are susceptible to corrosion, and that's why coating is not just an afterthought—it's a shield. You'll find options like nickel-copper-nickel, gold, zinc, or epoxy. Each offers different levels of protection and has an impact on the magnet's appearance and longevity. Nickel plating is common, but if you'll be using your magnet outdoors, consider a more robust coating like epoxy.
Coating thickness can also affect performance. Thinner coatings might be less visible, maintaining a more 'magnet-like' appearance, but they can wear down faster. Thicker coatings provide a heftier barrier against wear and tear, so think about your magnet's working environment before deciding.
It's not just about protection; some applications may require non-magnetic coatings for specific reasons. For instance, medical or food-grade applications often require coatings that are non-toxic and prevent any metal from contacting the surrounding environment. Always ensure that the coating is suitable for the magnet's intended use.
Shape Matters
The power of a magnet isn't just in the material; it's in the shape as well. Common shapes include discs, blocks, rings, and spheres. Each has a different magnetic field pattern. For example, disc and block magnets have a strong magnetic pull on their flat surfaces, making them perfect for direct attachment applications.
If you need a hole for mounting or you're integrating the magnet into a rotor, rings might be your go-to. And spheres? They're nifty because they create a magnetic field in all directions, which could be ideal for unique applications or educational purposes. Consider the logistics of your project to make sure you're getting a shape that complements the magnet's intended use.
Size is equally vital since it can directly influence the strength of the magnet. Larger magnets generally have a more significant pull, but the trade-off is weight and manageability. Carefully plan how your magnet's shape and size will affect its integration into your design, ensuring it's both functional and practical.
Safety and Handling
Strong magnets aren’t toys, and handling them requires respect and caution. The stronger the magnet, the higher the risk of injury from pinched skin or fingers, especially with larger sizes. Always wear protective gloves and use spacers to prevent the magnets from snapping together unexpectedly.
In addition to personal safety, consider the safe storage of your rare earth magnets. They should be kept in a space that minimizes the risk of them impacting electronic devices or other sensitive materials. Also, remember that powerful magnets can affect pacemakers, so safety protocols are vital if you or anyone nearby relies on such medical devices.
Disposal is another aspect of safety. As rare earth elements can be harmful to the environment, it’s important to dispose of or recycle these magnets properly. Contact local waste facilities or recycling centers that handle electronic waste to ensure your magnets don't end up damaging the planet.
Hands-on Reviews and Recommendations from Discussion-Boards
In this section, we present carefully curated links covering the topic of the Strongest Rare Earth Magnets. These links are grouped into four distinct categories for ease of navigation: expert reviews, forum discussions, Reddit threads, and informative videos. Each category has been selected to provide valuable insights and information from a variety of sources to ensure a comprehensive understanding of the subject.
Dec 22, 2020 — Fortunately, indeed. The magnets, which were probably neodymium, or “rare earth,” magnets, can be about 30 times stronger than the average...
Dec 21, 2017 — These magnets are known for their super strength, and can cause serious gastrointestinal injuries when swallowed by young kids. According to a ...
www.aawforum.org
I've always ordered my rare earth magnets from Lee Valley -- good price for great quality, small quantities, and great selection.
My first question is: why? Large rare - earth magnets are very, very dangerous and extremely hard to handle. They have the ability to pinch...
Neodymium or rare earth magnets, look on Amazon. The force, or pull is measured in kg so you should have a rough idea of how strong you need ...
Current neodymium magnets go up to N55, which will be slightly stronger but also more brittle. I also have the anecdotal evidence that my N35...
The strongest magnets will be " rare earth " magnets and they're pretty small since they don't need to be larger.
Harbor Freight Rare Earth Neodymium Magnets Review
Is a review of The Harbor Freight 67488 10-piece little 5/16 diameter high strength rare earth nickel-plated magnets their kind of handing...
