Neodymium Disc Magnet 3mm x 2mm N45 | Pack of 100pcs
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Neodymium Disc Magnet – 3mm x 2mm | N45 | Pack of 100pcs
The Neodymium Disc Magnet – 3mm x 2mm | N45 | Pack of 100pcs is a bulk pack of 100 miniature rare earth magnets designed for applications requiring strong magnetic performance in an extremely compact format. Manufactured from high-quality N45 grade neodymium iron boron (NdFeB), these tiny disc magnets offer an impressive strength-to-size ratio for manufacturing, electronics, model making, crafts, product development and precision engineering.
Each magnet measures just 3mm in diameter and 2mm thick, making this 100-piece pack ideal for projects requiring multiple small magnets or repeat production. Their miniature dimensions allow them to be incorporated into small components, recessed cavities, prototypes, closures and assemblies where larger magnets would be impractical.
These magnets are axially magnetised through their 2mm thickness, positioning the north and south poles on the two 3mm circular faces. This configuration provides face-to-face magnetic attraction and makes the magnets suitable for small closures, positioning, sensing, retention and miniature magnetic assemblies.
Key Features
- Pack of 100 neodymium disc magnets
- Premium N45 grade rare earth magnets
- Individual magnet dimensions: 3mm diameter x 2mm thickness
- Miniature size with excellent magnetic strength
- Axially magnetised through the 2mm thickness
- North and south poles on the flat circular faces
- High magnetic strength-to-size ratio
- Ideal for repetitive manufacturing and bulk projects
- Compact size for miniature components and assemblies
- Suitable for commercial, industrial, educational and DIY applications
Common Applications
- Miniature magnetic closures
- Model making and miniatures
- Electronics and small devices
- Product manufacturing
- Craft and hobby projects
- Prototype development
- Magnetic sensors
- Small positioning systems
- Educational projects
- Custom OEM assemblies
Why Choose N45 Miniature Neodymium Magnets?
N45 neodymium magnets provide high magnetic energy in a very small volume, making them an excellent choice when compact dimensions and reliable magnetic performance are both important.
At only 3mm x 2mm, these tiny disc magnets can be incorporated into small products and components without adding significant size or weight. Their flat circular faces provide a convenient contact area for face-to-face attraction, making them useful for miniature closures, removable components, models and precision assemblies.
Supplied as a pack of 100 pieces, they are particularly practical for manufacturers, designers, makers and businesses requiring multiple identical magnets for batch production, prototypes or ongoing projects.
Technical Specifications
- Product Type: Neodymium Disc Magnet
- Pack Quantity: 100 pieces
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N45
- Shape: Disc
- Diameter: 3mm
- Thickness: 2mm
- Magnetisation: Axially magnetised through the 2mm thickness
- Pole Orientation: North and south poles on the 3mm circular faces
- Magnet Type: Permanent Rare Earth Magnet
- Typical Applications: Manufacturing, miniature assemblies, holding, positioning, electronics, models, crafts and product development
Ideal for Bulk and Production Applications
This 100-pack of 3mm x 2mm N45 neodymium magnets provides a convenient solution for applications requiring a larger quantity of small, consistent magnetic components. The magnets can be incorporated into drilled or moulded recesses and secured using an adhesive appropriate for the magnet coating and surrounding material.
Their compact dimensions also make them useful for prototypes and product development where designers need to incorporate magnetic functionality without substantially changing the size or appearance of the finished product.
Please Note
These magnets are extremely small and must be kept away from children. Swallowed magnets can attract to each other through internal tissue and cause severe or life-threatening injuries. Seek urgent medical attention if magnet ingestion is suspected.
Due to their miniature size, care should also be taken when handling, separating and installing individual magnets.
Actual magnetic holding performance depends on the mating material, steel thickness, surface condition, air gap and direction of force. Paint, coatings, adhesive layers and gaps between the magnet and steel surface will reduce magnetic performance.
Neodymium magnets are hard but brittle. Do not drill, cut or machine the magnets, and avoid allowing them to snap together.
Keep away from pacemakers, medical implants, magnetic storage media and sensitive electronic equipment that may be affected by 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.
