Neodymium Disc Magnet - 4mm x 1.5mm | N45
Neodymium Disc Magnet - 4mm x 1.5mm | N45
Available in stock
Neodymium Disc Magnet - 4mm x 1.5mm | N45
Small in size but exceptionally powerful, this Neodymium Disc Magnet measures 4mm in diameter x 1.5mm in thickness and is manufactured from premium N45-grade NdFeB (Neodymium Iron Boron) rare earth magnetic material. Designed for precision applications where space is limited, this compact permanent magnet delivers outstanding magnetic performance for electronics, product design, engineering, manufacturing, crafts, and hobby projects.
Despite its miniature dimensions, the N45 neodymium grade provides impressive magnetic strength, making this magnet significantly more powerful than a ferrite magnet of the same size. Its compact profile is ideal for applications requiring discreet yet reliable magnetic holding without adding unnecessary bulk.
Magnetised through the 1.5mm thickness (axially magnetised), the magnetic poles are located on the two flat 4mm diameter faces, providing maximum holding performance when placed against a ferrous steel surface.
The magnet is finished with a durable nickel-copper-nickel (Ni-Cu-Ni) coating, offering excellent resistance to corrosion, oxidation, and everyday wear while maintaining a smooth, polished appearance.
Features & Benefits
- Premium N45-grade rare earth neodymium disc magnet
- Dimensions: 4mm diameter x 1.5mm thickness
- Magnetised through the thickness (axially magnetised)
- Strong magnetic performance for its compact size
- Durable nickel-copper-nickel (Ni-Cu-Ni) coating
- Precision-manufactured for consistent quality
- Suitable for industrial, commercial, and hobby applications
- Long-lasting permanent magnet
Common Applications
- Electronics and sensors
- Product assembly
- Model making
- Arts and crafts
- Magnetic closures
- Precision engineering
- Scientific experiments
- DIY and hobby projects
Ideal For
- Product designers
- Engineers
- Electronics manufacturers
- Prototype development
- Jewellery and craft makers
- Educational projects
- Small magnetic assemblies
- Precision manufacturing
Why Choose an N45 Neodymium Disc Magnet?
N45-grade neodymium magnets provide an excellent balance of magnetic strength, durability, and reliability. Their compact disc shape makes them ideal for applications requiring strong magnetic performance in confined spaces, while the high-energy rare earth material delivers exceptional holding power compared to conventional permanent magnets.
Please Note
Neodymium magnets are extremely powerful for their size and should be handled carefully to avoid pinch injuries or accidental damage. Due to their small size, they can present a serious swallowing hazard and must be kept away from children. Holding strength is achieved under ideal conditions using a clean, flat steel surface with direct contact. Actual magnetic performance will vary depending on the application, air gap, surface finish, and material being attracted. Keep away from pacemakers, sensitive electronic devices, and magnetic storage media. Avoid exposing the magnet to excessive heat or strong impacts, as this may reduce magnetic performance or cause the magnet to chip or crack.
Pull Force Information
Pull Force Information
Pull force refers to the maximum holding strength of a magnet. Measured in kilograms, it represents the amount of weight a magnet can support when attached to 10mm thick mild steel, with full, flat, and direct surface-to-surface contact.
A magnet's pull force can be affected by several factors, including its orientation (horizontal vs. vertical) and the presence of any air gaps between the magnet and the surface it’s attached to.
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