Neodymium Block Magnet - 35mm x 11mm x 5mm | N52
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Neodymium Block Magnet – 35mm x 11mm x 5mm | N52
The Neodymium Block Magnet – 35mm x 11mm x 5mm | N52 is an ultra-high-strength rare earth permanent magnet designed for demanding industrial, commercial, and engineering applications. Manufactured from premium N52 grade neodymium iron boron (NdFeB), this rectangular block magnet delivers some of the highest magnetic performance available in a standard neodymium grade.
Measuring 35mm long, 11mm wide, and 5mm thick, this magnet offers an excellent balance of magnetic strength and compact dimensions. Its elongated rectangular profile provides a large contact area, making it ideal for magnetic holding, clamping, positioning, separation, mounting, and custom magnetic assemblies.
This magnet is axially magnetised through its 5mm thickness, placing the north and south poles on the two 35mm x 11mm flat faces. This pole orientation maximises holding force against ferrous surfaces and creates a strong, concentrated magnetic field suitable for a wide range of industrial and precision engineering applications.
Finished with a durable nickel-copper-nickel (Ni-Cu-Ni) coating, the magnet features a smooth silver finish while helping to protect the neodymium core from corrosion and everyday wear. Whether used in manufacturing, automation, product development, or workshop projects, this 35mm x 11mm x 5mm N52 Block Magnet provides outstanding performance and long-term reliability.
Key Features
- Premium N52 grade neodymium rare earth magnet
- Dimensions: 35mm x 11mm x 5mm
- Strong permanent magnetic performance
- Rectangular block design with large contact surface
- Axially magnetised through the 5mm thickness
- North and south poles located on the 35mm x 11mm faces
- High magnetic energy density
- Durable nickel-copper-nickel plated finish
- Precision manufactured for consistent performance
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Magnetic clamping systems
- Industrial automation
- Engineering fixtures and jigs
- Product manufacturing
- Magnetic holding assemblies
- Robotics and automation
- Electric motors and generators
- Magnetic separation equipment
- Workshop tooling
- Custom OEM products
Ideal For
- Engineers
- Manufacturers
- Automation specialists
- Product designers
- Robotics developers
- Fabricators
- Maintenance technicians
- Research laboratories
- OEM equipment manufacturers
- DIY and prototyping projects
Why Choose an N52 Neodymium Block Magnet?
The N52 grade represents one of the highest commercially available standard grades of neodymium magnet, delivering exceptional magnetic strength within a compact size. This allows engineers and designers to achieve greater holding force without increasing the overall dimensions of their assembly.
The 35mm x 11mm x 5mm rectangular profile provides a generous magnetic contact area while remaining slim enough for installation into machinery, fixtures, enclosures, tooling, and production equipment. Its flat faces distribute magnetic force evenly, making it particularly effective for holding and positioning applications.
Because it is magnetised through the 5mm thickness, the magnetic field is concentrated across the largest faces of the magnet, maximising attraction to steel surfaces and making it ideal for magnetic clamps, mounting systems, and precision engineering components.
Technical Specifications
- Product Type: Neodymium Block Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N52
- Shape: Rectangular Block
- Length: 35mm
- Width: 11mm
- Thickness: 5mm
- Magnetisation: Axially magnetised through the 5mm thickness
- Pole Orientation: North and south poles on the 35mm x 11mm faces
- Coating: Nickel-Copper-Nickel (Ni-Cu-Ni)
- Finish: Polished silver nickel finish
- Magnet Type: Permanent Rare Earth Magnet
- Application: Holding, clamping, positioning, automation, separation, manufacturing, and engineering
Please Note
Neodymium magnets are extremely powerful and should be handled with care. This N52 block magnet can attract steel objects or other magnets unexpectedly, creating pinch hazards or causing the magnet to chip if allowed to collide with hard surfaces.
Actual pull force depends on the thickness, finish, and condition of the mating steel surface. Paint, coatings, air gaps, uneven contact, high temperatures, and sideways or peeling forces will reduce holding performance.
Neodymium magnets are hard but brittle. Do not drill, cut, machine, weld, or subject the magnet to strong impacts, as this may crack the magnet and damage its protective coating.
Store magnets with suitable spacers where possible and keep them away from children, pacemakers, medical implants, magnetic storage media, and sensitive electronic equipment that could 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.
