Neodymium Cylinder Magnet 7mm x 12mm N48
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Neodymium Cylinder Magnet – 7mm x 12mm | N48
The Neodymium Cylinder Magnet – 7mm x 12mm | N48 is a premium rare earth permanent magnet designed to deliver exceptional magnetic performance in a compact cylindrical profile. Manufactured from high-performance N48 grade neodymium iron boron (NdFeB), this precision magnet provides outstanding holding power while remaining compact enough for demanding industrial, commercial, and engineering applications.
Measuring 7mm in diameter and 12mm in length, this cylinder magnet features a practical elongated design that is ideal for installation into drilled holes, tubular housings, automation equipment, magnetic fixtures, sensors, and custom OEM assemblies. Its compact size and high magnetic energy make it an excellent choice for applications where space is limited but reliable magnetic strength is essential.
The 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 produces a concentrated magnetic field that is ideal for magnetic holding, positioning, reed switch activation, sensing, magnetic couplings, and precision alignment applications.
Finished with a durable nickel-copper-nickel (Ni-Cu-Ni) triple-layer coating, this magnet offers excellent resistance to corrosion and everyday wear while maintaining a polished silver finish. Whether you're designing automation equipment, manufacturing electronic products, building scientific instruments, or developing custom engineering solutions, the 7mm x 12mm N48 Neodymium Cylinder Magnet delivers dependable, long-lasting performance.
Key Features
- Premium N48 grade neodymium rare earth magnet
- Dimensions: 7mm diameter x 12mm length
- Compact elongated cylindrical design
- Exceptional magnetic strength for its size
- Axially magnetised through the 12mm length
- North and south poles located on the circular end faces
- High magnetic energy density
- Durable nickel-copper-nickel (Ni-Cu-Ni) plated finish
- Precision manufactured for dimensional consistency
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Industrial automation
- Magnetic sensors
- Reed switch activation
- Robotics
- Magnetic couplings
- Electric motors
- Product manufacturing
- Scientific instruments
- Precision positioning systems
- Custom OEM assemblies
Ideal For
- Engineers
- OEM manufacturers
- Automation specialists
- Electronics designers
- Robotics developers
- Product development teams
- Research laboratories
- Maintenance technicians
- Precision fabricators
- DIY engineering projects
Why Choose an N48 Neodymium Cylinder Magnet?
The N48 grade provides higher magnetic energy than many standard neodymium grades, allowing engineers and manufacturers to achieve greater holding force while keeping assemblies compact and lightweight. It is an excellent choice for applications requiring strong, dependable magnetic performance without increasing component size.
The 7mm x 12mm dimensions provide a well-balanced elongated profile that fits neatly into drilled holes, cylindrical housings, shafts, and precision mechanical assemblies. This geometry offers excellent alignment and is commonly used in automation equipment, magnetic locating systems, actuators, and electronic devices.
Because the magnet is magnetised through its length, the magnetic field is concentrated on the circular end faces. This configuration provides reliable end-to-end attraction and consistent performance for magnetic holding, positioning, sensing, switching, and coupling applications.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N48
- Shape: Cylinder
- Diameter: 7mm
- 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, automation, electronics, manufacturing, and precision engineering
Please Note
Neodymium magnets are extremely powerful for their size and should always be handled carefully. This 7mm x 12mm N48 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, 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.
