N42 Neodymium Block Magnet 4" x 2" x 1/2" Thick Rare Earth NdFeB Magnet
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Block Magnet |
| Grade |
N42 |
| Shape |
Block |
| Length |
4" (101.6 mm) |
| Width |
2" (50.8 mm) |
| Thickness |
1/2" (12.7 mm) |
| Pull Force |
Approx. 290 lbs |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) |
| Magnetization |
Through Thickness |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 290 lbs of pull force under ideal conditions. |
| Is N42 stronger than N35? |
Yes. N42 provides greater magnetic strength than N40, N38, and N35 grades. |
| What is this magnet made of? |
Neodymium Iron Boron (NdFeB) rare earth material. |
| Which surfaces contain the poles? |
The north and south poles are located on the 4" × 2" faces. |
| What applications is it best for? |
Magnetic lifting, heavy-duty holding, wind generators, magnetic water treatment systems, industrial equipment, and engineering projects. |
Product Overview
Neodymium magnets are the world's strongest commercially available permanent magnets. Super Magnet Store offers premium-quality N42 neodymium block magnets manufactured to stringent quality standards using advanced production technology. These magnets deliver exceptional magnetic strength, dependable performance, and long-term durability for industrial, commercial, and engineering applications.
This N42 neodymium block magnet measures 4" x 2" x 1/2" and generates approximately 290 lbs of pull force under ideal conditions. Manufactured from neodymium, iron, boron, and other minor elements, it provides stronger magnetic performance than N40, N38, and N35 grades.
The Nickel-Copper-Nickel triple-layer coating offers outstanding corrosion resistance and wear protection while maintaining consistent magnetic performance over time. Manufactured under ISO-certified quality standards, this magnet is engineered for demanding industrial applications requiring exceptional holding force.
What Is a Neodymium Block Magnet?
A neodymium block magnet is a rectangular permanent magnet made from neodymium, iron, and boron (NdFeB). Its large magnetic surface area and high energy density make it ideal for heavy-duty magnetic lifting, industrial fixtures, wind generators, magnetic assemblies, manufacturing equipment, and engineering applications.
How Strong Is This Magnet?
This N42 neodymium block magnet produces approximately 290 lbs of pull force under ideal conditions. Actual holding strength depends on steel thickness, surface finish, air gaps, operating temperature, and mounting configuration. With a Br Max rating of 13,200 Gauss, it delivers powerful and reliable magnetic performance for industrial use.
Technical Specifications
| Specification |
Value |
| Product Name |
N42 Neodymium Block Magnet |
| Material |
Neodymium Iron Boron (NdFeB) |
| Grade |
N42 |
| Shape |
Block |
| Dimensions |
4" × 2" × 1/2" |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization Direction |
Through Thickness (1/2") |
| Pole Orientation |
On the 4" × 2" Faces |
| Pull Force |
Approx. 290 lbs |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
| Maximum Operating Temperature |
176°F (80°C) |
Note: Pull force is measured under ideal laboratory conditions using a clean, flat steel surface. Actual performance may vary depending on the application.
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General-purpose magnetic assemblies |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial equipment |
| N42 |
Higher |
Heavy-duty industrial applications |
| N45 |
Premium |
High-performance assemblies |
| N48 |
Very High |
Industrial automation |
| N50 |
Ultra High |
Advanced engineering |
| N52 |
Maximum |
Maximum-performance systems |
Common Applications
-
Heavy-duty lifting magnets
-
Industrial holding systems
-
Wind generator assemblies
-
Magnetic water treatment equipment
-
Manufacturing fixtures
-
Automation systems
-
Engineering prototypes
-
Scientific and research equipment
Frequently Asked Questions
How much weight can this magnet hold?
This magnet provides approximately 290 lbs of pull force under ideal conditions. Actual holding capacity depends on the steel surface, alignment, air gaps, and installation method.
Is N42 stronger than N35?
Yes. N42 provides significantly greater magnetic energy and holding force than N35 magnets of the same dimensions.
What direction is it magnetized?
The magnet is magnetized through the 1/2-inch thickness, with the north and south poles located on the 4" × 2" faces.
Can this magnet be used outdoors?
The Nickel-Copper-Nickel coating offers excellent corrosion resistance. For prolonged outdoor, marine, or high-humidity environments, additional sealing or a protective enclosure is recommended.
What is the maximum operating temperature?
This standard N42 magnet is designed for continuous operation up to 176°F (80°C). Exposure to temperatures above this limit may permanently reduce magnetic strength.
Do you offer wholesale pricing?
Yes. Contact Super Magnet Store for competitive wholesale pricing and volume discounts on N42 neodymium block magnets.
Safety Notice
This is an extremely powerful neodymium magnet capable of generating very high attractive forces. Use caution during handling to prevent serious pinch injuries, chipping, or breakage. Keep away from children, pacemakers, sensitive electronics, magnetic storage media, and loose ferrous objects. Always review and follow magnet safety guidelines before handling or installation.
Why Buy From Super Magnet Store?
-
Premium NdFeB rare earth magnets
-
Powerful N42 magnetic performance
-
Approximate 290 lb pull force
-
Strong 13,200 Gauss magnetic field
-
Nickel-Copper-Nickel triple-layer coating
-
ISO-certified manufacturing
-
Ideal for lifting, holding, wind generators, and industrial applications
-
Wholesale pricing available
-
Superior quality and consistent performance guaranteed
