Neodymium Cylinder Magnet 12mm x 12mm N45
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Neodymium Cylinder Magnet – 12mm x 12mm | N45
The Neodymium Cylinder Magnet – 12mm x 12mm | N45 is a premium rare earth permanent magnet designed to deliver exceptional magnetic strength in a compact cylindrical form. Manufactured from high-quality N45 grade neodymium iron boron (NdFeB), this magnet offers an excellent balance of holding power, durability, and reliability for industrial, commercial, and engineering applications.
Measuring 12mm in diameter and 12mm in length, this magnet features a symmetrical cylindrical profile that provides strong magnetic performance while remaining easy to integrate into machinery, tooling, automation equipment, electronic devices, and custom product designs. Its equal diameter and length create a versatile geometry that is ideal for magnetic holding, positioning, sensing, and coupling applications.
This cylinder magnet is axially magnetised through its 12mm length, meaning the north and south poles are located on the two circular end faces. This magnetisation direction creates a concentrated magnetic field at each end of the cylinder, making it highly effective for face-to-face attraction, precision alignment, reed switch activation, and magnetic retention systems.
The magnet is finished with a durable nickel-copper-nickel (Ni-Cu-Ni) coating, providing a smooth silver finish while helping to protect the neodymium material against corrosion and everyday handling. Whether used in manufacturing, robotics, product development, scientific equipment, or workshop projects, this 12mm x 12mm N45 Neodymium Cylinder Magnet delivers consistent long-term performance.
Key Features
- Premium N45 grade neodymium rare earth magnet
- 12mm diameter x 12mm length
- Strong permanent magnetic performance
- Compact cylindrical design
- Axially magnetised through the 12mm length
- North and south poles located on the circular end faces
- Excellent strength-to-size ratio
- Durable nickel-copper-nickel plated finish
- Precision manufactured for consistent dimensions
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Industrial automation
- Magnetic holding systems
- Precision positioning
- Robotics
- Reed switch activation
- Electric motors
- Electronic devices
- Magnetic couplings
- Product prototypes
- Scientific and laboratory equipment
Ideal For
- Engineers
- OEM manufacturers
- Automation specialists
- Product designers
- Electronics technicians
- Robotics developers
- Maintenance teams
- Research laboratories
- Fabricators
- DIY and prototyping projects
Why Choose an N45 Neodymium Cylinder Magnet?
The N45 grade offers an excellent combination of magnetic strength and cost-effectiveness, making it one of the most popular choices for professional engineering and industrial applications. It provides powerful magnetic performance while maintaining excellent reliability across a wide range of operating environments.
With its 12mm diameter and 12mm length, this cylinder magnet offers a balanced design that is easy to install into drilled holes, cylindrical housings, shafts, and precision assemblies. Its compact geometry makes it particularly useful where space is limited but a strong magnetic field is required.
Because the magnet is magnetised through its length, the magnetic field is concentrated on the circular end faces. This orientation is ideal for applications requiring strong end-to-end attraction, accurate positioning, magnetic sensing, or secure holding against ferrous materials.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N45
- Shape: Cylinder
- Diameter: 12mm
- Length: 12mm
- Magnetisation: Axially magnetised through the 12mm length
- Pole Orientation: North and south poles on the circular end faces
- Coating: Nickel-Copper-Nickel (Ni-Cu-Ni)
- Finish: Polished silver nickel finish
- Magnet Type: Permanent Rare Earth Magnet
- Application: Holding, positioning, sensing, coupling, automation, and precision engineering
Please Note
Neodymium magnets are extremely powerful for their size and should always be handled carefully. They can attract steel objects or other magnets suddenly, creating pinch hazards and potentially causing the magnet to chip if allowed to collide with hard surfaces.
Actual pull force will vary depending on the thickness, finish, and condition of the mating steel surface. Air gaps, paint, coatings, uneven contact, high temperatures, and sideways or peeling forces can significantly reduce holding performance.
Neodymium magnets are hard but brittle. Do not drill, cut, machine, weld, or subject the magnet to heavy impacts, as this may fracture the magnet and damage its protective coating.
Keep away from children, pacemakers, medical implants, magnetic storage media, and sensitive electronic equipment that may be affected by strong magnetic fields.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Range and Tolerance
Magnets are readily available in Blocks, Discs, Cylinders & Rings. We specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Magnetic Properties
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
