Neodymium Cylinder Magnet 12mm x 16mm N45
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Neodymium Cylinder Magnet – 12mm x 16mm | N45
The Neodymium Cylinder Magnet – 12mm x 16mm | N45 is a premium rare earth permanent magnet engineered to deliver exceptional magnetic performance in a compact cylindrical design. Manufactured from high-quality N45 grade neodymium iron boron (NdFeB), this powerful magnet provides an excellent balance of magnetic strength, durability, and reliability for industrial, commercial, engineering, and OEM applications.
Measuring 12mm in diameter and 16mm in length, this precision cylinder magnet offers a versatile size suitable for magnetic holding, positioning, automation, robotics, product manufacturing, scientific equipment, and custom engineering projects. Its compact profile allows for easy installation into drilled holes, tubular housings, fixtures, and precision-machined components where strong magnetic performance is essential.
The magnet is axially magnetised through its 16mm length, placing the north and south poles on the two circular end faces. This magnetisation direction creates a concentrated magnetic field at each end of the cylinder, making it ideal for magnetic holding, reed switch activation, magnetic sensing, positioning systems, actuators, and magnetic couplings.
Finished with a durable nickel-copper-nickel (Ni-Cu-Ni) triple-layer coating, the magnet features a polished silver finish that provides excellent protection against corrosion and everyday wear while maintaining long-term magnetic performance. Whether you're manufacturing industrial equipment, designing automation systems, or building custom products, the 12mm x 16mm N45 Neodymium Cylinder Magnet offers dependable and consistent performance.
Key Features
- Premium N45 grade neodymium rare earth magnet
- Dimensions: 12mm diameter x 16mm length
- Compact cylindrical design
- Strong permanent magnetic performance
- Axially magnetised through the 16mm length
- North and south poles located on the circular end faces
- Excellent strength-to-size ratio
- Durable nickel-copper-nickel (Ni-Cu-Ni) plated finish
- Precision manufactured for dimensional accuracy
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Industrial automation
- Robotics
- Magnetic holding systems
- Reed switch activation
- Magnetic sensors
- Electric motors
- Precision positioning systems
- Scientific instruments
- Product manufacturing
- Custom OEM assemblies
Ideal For
- Engineers
- OEM manufacturers
- Automation specialists
- Machine builders
- Product designers
- Electronics manufacturers
- Robotics developers
- Research laboratories
- Maintenance engineers
- Precision fabrication workshops
Why Choose an N45 Neodymium Cylinder Magnet?
The N45 grade provides an excellent combination of magnetic strength and value, making it a popular choice for engineering, automation, manufacturing, and product development. Its high magnetic energy enables designers to achieve powerful magnetic performance while maintaining compact assemblies.
The 12mm x 16mm dimensions provide a practical cylindrical profile that fits easily into precision housings, drilled holes, and magnetic assemblies. Its compact size makes it suitable for applications requiring reliable holding force, accurate positioning, and consistent magnetic performance without excessive bulk.
Because the magnet is magnetised through its length, the magnetic field is concentrated on the circular end faces. This configuration delivers strong end-to-end attraction and dependable performance in magnetic holding, sensing, switching, positioning, and coupling applications.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N45
- Shape: Cylinder
- Diameter: 12mm
- Length: 16mm
- Magnetisation: Axially magnetised through the 16mm 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, automation, electronics, manufacturing, and precision engineering
Please Note
Neodymium magnets are extremely powerful for their size and should always be handled carefully. This 12mm x 16mm N45 cylinder magnet can attract nearby steel objects or other magnets suddenly, creating pinch hazards and potentially causing the magnet to chip or crack if allowed to collide.
Actual holding force depends on the thickness, finish, and condition of the mating steel surface. Air gaps, paint, coatings, rust, uneven contact, elevated temperatures, and sideways or peeling forces can significantly reduce magnetic performance.
Neodymium magnets are hard but brittle. Do not drill, cut, machine, weld, or subject the magnet to heavy impacts, as this may damage the magnet and its protective coating.
Keep away from children, pacemakers, medical implants, magnetic storage media, credit cards, 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.
