Neodymium Cylinder Magnet 2mm x 2.4mm N50 Parylene-C
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Neodymium Cylinder Magnet – 2mm x 2.4mm | N50 | Parylene-C Coated
The Neodymium Cylinder Magnet – 2mm x 2.4mm | N50 | Parylene-C Coated is an ultra-miniature rare earth permanent magnet engineered for precision applications where exceptional magnetic strength, compact dimensions, and enhanced corrosion protection are essential. Manufactured from premium N50 grade neodymium iron boron (NdFeB) and finished with a Parylene-C coating, this magnet is ideal for advanced engineering, electronics, medical devices, scientific instrumentation, and high-performance OEM applications.
Measuring just 2mm in diameter and 2.4mm in length, this tiny cylinder magnet delivers impressive magnetic performance despite its extremely small size. It is specifically designed for miniature assemblies where every millimetre counts, making it suitable for precision sensors, micro-actuators, robotics, instrumentation, and compact electronic devices.
This magnet is axially magnetised through its 2.4mm length, placing the north and south poles on the two circular end faces. This magnetisation direction creates a focused magnetic field that is ideal for precision sensing, positioning, reed switch activation, magnetic coupling, and miniature holding applications.
Unlike conventional nickel-plated magnets, this version features a Parylene-C coating. Parylene-C is a thin, conformal polymer coating that provides excellent resistance to moisture, chemicals, corrosion, and many harsh operating environments while maintaining the magnet's precise dimensions. It is commonly specified for medical, laboratory, aerospace, electronics, and specialised industrial applications where traditional metallic coatings may not be suitable.
Key Features
- Premium N50 grade neodymium rare earth magnet
- High-performance Parylene-C protective coating
- Dimensions: 2mm diameter x 2.4mm length
- Ultra-miniature cylindrical design
- Exceptional magnetic strength for its size
- Axially magnetised through the 2.4mm length
- North and south poles located on the circular end faces
- Excellent resistance to corrosion and moisture
- Precision manufactured for miniature assemblies
- Suitable for specialist industrial, medical, and electronic applications
Common Applications
- Medical devices
- Laboratory instruments
- Miniature sensors
- Reed switch activation
- Robotics
- Precision electronics
- Aerospace equipment
- Scientific research
- Micro-mechanical assemblies
- OEM product manufacturing
Ideal For
- Medical device manufacturers
- Electronics engineers
- Product designers
- OEM manufacturers
- Robotics developers
- Research laboratories
- Scientific equipment manufacturers
- Precision engineering workshops
- Automation specialists
- Prototype developers
Why Choose a Parylene-C Coated N50 Cylinder Magnet?
The N50 grade provides exceptional magnetic energy, allowing this miniature magnet to generate remarkable magnetic performance despite its extremely compact size. This makes it an excellent solution for products where installation space is severely limited but strong magnetic force is still required.
The Parylene-C coating offers significant advantages over traditional metallic coatings. It forms a uniform, pinhole-free protective barrier around the magnet that provides outstanding resistance to moisture, chemicals, salt, and corrosion while maintaining precise tolerances. Because the coating is extremely thin and conformal, it is ideal for miniature magnets used in high-precision applications.
With its 2mm x 2.4mm cylindrical profile, this magnet is commonly used in miniature sensors, medical instruments, precision actuators, compact electronic devices, and specialist assemblies where both magnetic performance and environmental protection are critical.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N50
- Shape: Cylinder
- Diameter: 2mm
- Length: 2.4mm
- Magnetisation: Axially magnetised through the 2.4mm length
- Pole Orientation: North and south poles on the circular end faces
- Coating: Parylene-C
- Finish: Protective polymer coating
- Magnet Type: Permanent Rare Earth Magnet
- Application: Medical devices, electronics, sensing, automation, scientific instruments, and precision engineering
Please Note
Due to their extremely small size, these magnets require careful handling during installation and assembly. They can be difficult to separate individually and are easily misplaced if dropped.
Although the Parylene-C coating provides excellent corrosion resistance and environmental protection, it is a thin precision coating and should not be subjected to abrasion, impact, or machining.
Actual holding force depends on the thickness, finish, and condition of the mating steel surface. Air gaps, coatings, uneven contact, elevated temperatures, and sideways or peeling forces will reduce magnetic performance.
Neodymium magnets are hard but brittle. Do not drill, cut, machine, weld, or strike the magnet against another hard surface.
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.
