1" x 1" N42 Neodymium Cylinder Magnet with 1/4" Center Hole – Rare Earth Magnet
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Cylinder Magnet with Center Hole |
| Grade |
N42 |
| Shape |
Cylinder with Center Hole |
| Diameter |
1" (25.4 mm) |
| Height |
1" (25.4 mm) |
| Center Hole |
1/4" (0.25") |
| Pull Force |
Approximately 95 lbs* |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer |
| Magnetization |
Through Thickness (Axially Magnetized) |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
*Note: Actual pull force may vary depending on the application, contact surface, steel thickness, and mounting method. Testing in your specific application is recommended.
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 95 lbs of pull force under ideal conditions. |
| What is this magnet made of? |
NdFeB (Neodymium-Iron-Boron) rare earth material. |
| Is N42 stronger than N35 magnets? |
Yes. N42 provides greater magnetic strength than N40, N38, and N35 magnets of the same size. |
| Can it be used outdoors? |
Yes, but additional sealing is recommended for long-term outdoor or marine environments. |
| What is it commonly used for? |
Heavy-duty mounting, shaft assemblies, industrial machinery, robotics, magnetic tooling, and engineering projects. |
Product Overview
These 1" x 1" N42 Neodymium Cylinder Magnets with a 1/4" Center Hole combine powerful magnetic performance with versatile mounting capabilities. The balanced 1-inch diameter and 1-inch height create a true cylindrical profile, while the 1/4-inch center hole allows the magnet to be mounted directly onto shafts, bolts, or custom hardware. Delivering approximately 95 pounds of pull force, these magnets are ideal for heavy-duty industrial and engineering applications.
Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets provide reliable magnetic strength that exceeds N40, N38, and N35 grades. Their axial magnetization through the 1-inch thickness places the magnetic poles on the two flat ends, making them well-suited for magnetic holding, clamping, and structural applications.
Each magnet is protected by a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, offering excellent resistance to corrosion, scratches, and chipping while maintaining a smooth, polished finish.
What Is a Neodymium Cylinder Magnet with a Center Hole?
A neodymium cylinder magnet with a center hole is a permanent NdFeB (Neodymium-Iron-Boron) magnet that combines exceptional magnetic strength with the convenience of a precision-machined through hole for mounting or shaft installation.
This model is magnetized through its 1-inch thickness (axially magnetized), placing the north and south poles on the two flat circular ends. The 1/4-inch center hole allows for secure installation on shafts, bolts, threaded rods, or custom fixtures, making it ideal for industrial equipment, automation, and mechanical assemblies.
Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.
How Strong Is This Magnet?
This 1" x 1" N42 cylinder magnet with a 1/4-inch center hole provides approximately 95 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.
Actual holding force depends on:
- Surface material
- Steel thickness
- Contact area
- Air gap
- Mounting method
- Environmental conditions
For maximum holding power, use this magnet against a clean, flat steel surface and ensure proper mounting through the center hole.
Note: Pull force values are estimates based on ideal laboratory conditions. Actual performance should always be verified for your intended application.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth Cylinder Magnet with Center Hole |
| Grade |
N42 |
| Shape |
Cylinder with Center Hole |
| Diameter |
1" (25.4 mm) |
| Height |
1" (25.4 mm) |
| Center Hole |
1/4" (0.25") |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness (Axially Magnetized) |
| Pull Force |
Approximately 95 lbs* |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
Nickel-Copper-Nickel Triple-Layer Coating
Every magnet features a Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating for superior durability and corrosion resistance.
Benefits
- Excellent scratch resistance
- Superior resistance to chipping and cracking
- Outstanding corrosion protection
- Smooth, polished metallic finish
- Long-lasting durability for industrial, commercial, and workshop applications
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General-purpose magnets |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial applications |
| N42 |
Higher |
Engineering, manufacturing, robotics |
| N48 |
Extremely High |
Heavy-duty industrial equipment |
| N52 |
Maximum |
Maximum-performance industrial applications |
Cylinder Magnet Size Comparison
| Size |
Typical Use |
| Small |
Sensors, electronics, crafts |
| Medium |
General-purpose holding and fixtures |
| 1" x 1" with 1/4" Center Hole |
Shaft mounting, machinery, robotics, industrial tooling |
| Large |
Maximum-strength industrial applications |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Magnetic fixtures, production equipment, tooling |
| Engineering |
Mechanical assemblies and prototypes |
| Robotics |
Positioning systems and magnetic attachments |
| Industrial Equipment |
Shaft-mounted components, machinery, holding systems |
| Automation |
Precision mechanical assemblies |
| OEM Manufacturing |
Custom equipment and specialized machinery |
Common Questions About This Magnet
What is the pull force?
This magnet provides approximately 95 pounds of pull force under ideal testing conditions.
What is the purpose of the 1/4-inch center hole?
The precision-machined center hole allows the magnet to be mounted on shafts, bolts, threaded rods, or custom hardware for secure installation.
Is N42 stronger than N35 magnets?
Yes. N42 delivers significantly greater magnetic strength and holding power than N35 magnets of the same dimensions.
Can this magnet rust?
The Nickel-Copper-Nickel triple-layer coating helps protect against corrosion. If the coating becomes damaged and moisture reaches the magnet, corrosion may occur over time.
Can it be used outdoors?
Yes. However, additional sealing is recommended for long-term outdoor, marine, or high-humidity environments.
What direction is it magnetized?
This magnet is magnetized through its 1-inch thickness (axially magnetized), with the north and south poles located on the two flat circular ends.
Do you offer bulk discounts?
Yes. Contact Super Magnet Store for wholesale pricing and volume discounts on large quantity orders.
Why Buy From Super Magnet Store?
- Premium N42 NdFeB rare earth magnets
- ISO-certified quality
- Precision-machined 1/4" center hole
- Strong axial magnetization
- Durable Nickel-Copper-Nickel triple-layer coating
- Excellent corrosion resistance
- Consistent magnetic performance
- Precision manufacturing for reliable results
- Competitive wholesale pricing
- Bulk discounts available
- Trusted by manufacturers, engineers, OEMs, and industrial professionals worldwide
