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Neodymium Magnets

Neodymium Magnets: High-Performance Rare Earth Solutions

Shop the world’s strongest permanent magnets. Neodymium (NdFeB) magnets deliver unmatched power-to-size ratios, making them essential for modern industrial engineering, medical devices, and renewable energy sectors. From N52 extreme-strength blocks to precision-machined N42 discs, CMS Magnetics offers ISO-certified solutions with pull forces ranging from 1 lb to over 500 lbs.

Browse by Magnet Shape:

[Disc Magnets]: Circular precision for sensors and Hall Effect triggers.
[Block Magnets]: High-surface area for industrial mounting and closures.
[Ring Magnets]: Optimized for motor assemblies, rotors, and generators.
[Countersunk Magnets]: Pre-drilled for easy mechanical fastening in signage and cabinetry.

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Technical Buyer’s Guide: Understanding Neodymium Magnetics

In 2026, selecting the right magnet requires balancing Remanence (Br), Coercivity (Hc), and thermal constraints. As a US-based leader in magnetic distribution, we provide the technical data you need for precision sourcing.

1. Neodymium Grades: N35 to N52

The "N" grade indicates the Maximum Energy Product (BHmax) in Mega-Gauss Oersteds (MGOe). Higher grades offer stronger magnetic flux but often come with lower thermal limits.

Magnetic Grade	BHmax (Energy Product)	Best Application
N35	33–36 MGOe	Cost-effective solutions for signage, crafts, and office use.
N42	40–43 MGOe	The "Industrial Workhorse" for sensors and electrical components.
N52	50–53 MGOe	Maximum pull force for compact assemblies where space is limited.

2. Magnetic Characteristics & Performance

Remanence (Br): This is the magnetic induction remaining in the magnet when the external magnetic field is removed. Our N52 magnets offer a Br Max of up to 14,800 Gauss.
Coercivity (Hc): This measures the magnet's resistance to being demagnetized. Neodymium has exceptionally high intrinsic coercivity, making it ideal for high-vibration industrial environments.
Curie Temperature: Standard NdFeB magnets have a maximum operating temperature of 176°F (80°C). For high-heat applications, please contact us for specialized high-temperature (SH or UH) grades.

3. Magnetic Durability: Triple-Layer Ni-Cu-Ni Coating

Uncoated sintered NdFeB is highly susceptible to oxidation. Our magnets feature a professional Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating. This process provides:

Corrosion Resistance: Essential for humid or industrial environments.
Enhanced Longevity: The copper layer acts as a shock absorber to reduce chipping.
Professional Finish: A hard, smooth exterior for aesthetic and functional reliability.

4. FAQ: Frequently Asked Questions

What is the strongest neodymium magnet available? N52 is currently the highest commercial grade, offering the maximum magnetic field density per unit of volume.
Do neodymium magnets lose their strength? Properly handled, they lose less than 1% of their flux density over 10 years.
What is the maximum operating temperature? Standard grades are rated up to 176°F (80°C). For higher temperature requirements, please contact our North Texas office for specialized SH or UH grades.

5. Safety & Compliance

As a leading U.S. distributor based in Garland, Texas, we prioritize safety. These are not toys. Due to their extreme pull force, neodymium magnets can cause serious injury if skin is pinched between two attracting surfaces. Always keep magnets away from pacemakers, credit cards, and sensitive electronic storage media.

Need a Custom Solution?

If your project requires specific tolerances, custom coatings (like Epoxy or Rubber), or specialized magnetization patterns, visit our [RFQ & Custom Order] page for a professional engineering consultation.

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CMS Magnetics

sku: NB0055-52P

Neodymium Cube Magnet N52 3/8 inch Plastic Coated

CMS Magnetics

sku: NB009-52P

N52 Neodymium Magnets 1/2" Cubes - Plastic Coated

CMS Magnetics

sku: NB0186-52P

N52 Plastic Coated Block Magnet 1x1/2x1/4" Neodymium Magnet | Rare Earth Magnet

CMS Magnetics

sku: NB021336-52P-D2#6

N52 48 LB Pull Block Magnet 1.5x3/4x3/8" w/ 2 #6 Countersunk Holes Plastic Coated Neodymium Magnet

CMS Magnetics

sku: NB0240-52P-D2#8

N52 Block Magnet 2x1x1/2" Neodymium Block Magnet | Rare Earth Block Magnet w/ 2 #8 Countersunk Holes Plastic Coated

CMS Magnetics

sku: NB0055-52P

Neodymium Cube Magnet N52 3/8 inch Plastic Coated

CMS Magnetics

sku: NB009-52P

N52 Neodymium Magnets 1/2" Cubes - Plastic Coated

CMS Magnetics

sku: NB0186-52P

N52 Plastic Coated Block Magnet 1x1/2x1/4" Neodymium Magnet | Rare Earth Magnet

CMS Magnetics

sku: NB021336-52P-D2#6

N52 48 LB Pull Block Magnet 1.5x3/4x3/8" w/ 2 #6 Countersunk Holes Plastic Coated Neodymium Magnet

CMS Magnetics

sku: NB0240-52P-D2#8

N52 Block Magnet 2x1x1/2" Neodymium Block Magnet | Rare Earth Block Magnet w/ 2 #8 Countersunk Holes Plastic Coated

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Neodymium Magnets

Neodymium Magnets: High-Performance Rare Earth Solutions

Technical Buyer’s Guide: Understanding Neodymium Magnetics

1. Neodymium Grades: N35 to N52

2. Magnetic Characteristics & Performance

3. Magnetic Durability: Triple-Layer Ni-Cu-Ni Coating

4. FAQ: Frequently Asked Questions

5. Safety & Compliance

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