Neodymium Cylinder Magnet 15mm x 25mm N45
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Neodymium Cylinder Magnet – 15mm x 25mm | N45
The Neodymium Cylinder Magnet – 15mm x 25mm | N45 is a premium rare earth cylinder magnet designed to deliver exceptional magnetic strength in a compact cylindrical form. Manufactured from high-quality N45 grade neodymium (NdFeB), this permanent magnet provides outstanding holding power, making it ideal for industrial, engineering, manufacturing, scientific, and DIY applications where reliable magnetic performance is essential.
Measuring 15mm in diameter and 25mm in length, this precision-engineered cylinder magnet offers an excellent balance of magnetic force and versatility. Its elongated profile creates a concentrated magnetic field, making it well suited for magnetic holding, locating, lifting, sensing, clamping, product assembly, automation equipment, and custom engineering projects.
The magnet is axially magnetised through its 25mm length, meaning the north and south poles are located on the two circular end faces. This magnetisation direction produces a strong magnetic field along the length of the cylinder, making it ideal for applications where maximum pull force and efficient magnetic coupling are required.
Protected by a durable nickel (Ni-Cu-Ni) triple-layer coating, this neodymium magnet offers excellent resistance to corrosion and everyday wear while maintaining a bright, polished finish. Whether you're building specialised equipment, manufacturing products, developing prototypes, or creating custom magnetic assemblies, the 15mm x 25mm N45 Neodymium Cylinder Magnet delivers dependable, long-lasting performance.
Key Features
- Premium N45 grade neodymium rare earth magnet
- 15mm diameter x 25mm length
- High-strength permanent magnet
- Precision cylindrical design
- Axially magnetised through the length
- Durable nickel (Ni-Cu-Ni) plated finish
- Excellent magnetic performance for its size
- Long-lasting magnetic strength
- Precision manufactured for consistent quality
- Suitable for industrial, commercial, and DIY applications
Common Applications
- Magnetic holding systems
- Industrial automation
- Engineering fixtures and jigs
- Robotics
- Product assembly
- Magnetic sensors
- Scientific equipment
- Prototype development
- Workshop tooling
- Custom magnetic projects
Ideal For
- Engineers
- OEM manufacturers
- Automation specialists
- Product designers
- Machinery manufacturers
- Research laboratories
- Educational institutions
- Maintenance technicians
- Makers and hobbyists
- DIY enthusiasts
Why Choose an N45 Neodymium Cylinder Magnet?
The N45 grade offers a higher magnetic energy product than many standard neodymium grades, delivering excellent holding power in a compact size. This makes it ideal for applications where space is limited but strong magnetic performance is critical.
The 15mm diameter x 25mm length provides an excellent aspect ratio for applications requiring deep magnetic penetration, secure holding, or precise positioning. The cylindrical shape is particularly suited to locating holes, magnetic couplings, tooling, actuators, and assemblies where round magnets offer easier integration than block or disc magnets.
Finished with a corrosion-resistant nickel coating, this magnet is built to withstand everyday industrial use while maintaining its appearance and performance. Its consistent magnetic properties make it a dependable choice for OEM production, engineering projects, research, and custom manufacturing.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium (NdFeB)
- Magnet Grade: N45
- Shape: Cylinder
- Diameter: 15mm
- Length: 25mm
- Magnetisation: Axially Magnetised (through the 25mm length)
- Coating: Nickel (Ni-Cu-Ni)
- Reusable: Yes
- Application: Holding, positioning, sensing, lifting, automation, and magnetic assemblies
Please Note
Neodymium magnets are extremely powerful for their size and should be handled carefully. They can attract steel objects or other magnets with considerable force, creating pinch hazards and potentially causing the magnet to chip or crack if allowed to collide.
Actual magnetic holding performance will vary depending on the thickness and condition of the mating steel surface, air gap, alignment, operating temperature, and application design.
Keep this magnet away from children, pacemakers, medical implants, magnetic storage media, and sensitive electronic devices.
Neodymium magnets are hard but brittle and should not be drilled, cut, machined, or subjected to excessive impact after manufacture. Avoid exposing the magnet to temperatures exceeding the recommended operating range for N45 grade neodymium magnets to ensure optimum magnetic performance and longevity.
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.
