Neodymium Block Magnet - 100mm x 14mm x 4mm | N45SH | Epoxy Coated | High Temperature ≤150ºC
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Neodymium Block Magnet - 100mm x 14mm x 4mm | N45SH | Epoxy Coated | High Temperature
Long, slim, and engineered for demanding environments, this Neodymium Block Magnet measures 100mm x 14mm x 4mm and is manufactured from premium N45SH-grade rare earth neodymium. Combining strong magnetic performance with enhanced thermal resistance and a durable epoxy finish, this high-performance block magnet is ideal for industrial, engineering, manufacturing, and specialised technical applications.
Featuring a protective black epoxy coating, this magnet offers improved resistance to moisture, corrosion, chipping, and surface wear compared to standard nickel-plated magnets. The sleek matte-black finish also provides a more discreet appearance for applications where aesthetics or reduced glare are important.
The N45SH grade is specifically designed for elevated temperature applications, making this magnet suitable for environments where standard neodymium magnets may lose performance due to heat exposure. Magnetised through the 4mm thickness (axially magnetised), it delivers concentrated magnetic force across the large rectangular surface area for strong and dependable holding performance.
Its long slim profile makes this neodymium block magnet ideal for magnetic mounting systems, machinery, automation equipment, workshop fixtures, cabinetry, signage, sensor systems, fabrication projects, and custom engineering assemblies.
Features & Benefits
- Premium N45SH-grade neodymium rare earth magnet
- Dimensions: 100mm x 14mm x 4mm
- High temperature resistant magnet grade
- Durable black epoxy coating
- Improved corrosion and wear resistance
- Long slim rectangular block design
- Magnetised through the thickness (axial magnetisation)
- Smooth low-glare black finish
- Suitable for industrial, commercial, and technical applications
Common Applications
- High-temperature industrial systems
- Magnetic mounting and holding systems
- Machinery and automation equipment
- Engineering and fabrication projects
- Workshop jigs and fixtures
- Sensor systems and technical assemblies
- Product design and prototyping
- Custom magnetic solutions and DIY projects
Please Note
Neodymium magnets are extremely powerful and should be handled carefully. Larger magnets can snap together unexpectedly with significant force and may chip or crack upon impact. Maximum operating temperature performance may vary depending on the application and magnetic circuit design. Keep away from children, pacemakers, electronic devices, and magnetic storage media.
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.
