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B&Q£12.99Visit shop - N42 Neodymium Magnet For ArtsCraftsModel MakingDiyHobbiesOfficeAnd Home30mm Dia X 5mm Thick12Kg Pull
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This guide is for hobbyists, makers, and engineers seeking powerful, compact magnetic solutions. The N42 Neodymium Magnet offers exceptional 9.8kg pull force in a small 30mm diameter by 5mm thick disc, ideal for creative projects and demanding industrial applications. A key benefit is its triple-coated, corrosion-resistant finish, though careful handling is necessary due to its strong magnetic force.
| Model Part Number | N42 |
|---|---|
| Brand | FIRST4MAGNETS |
The 'N' stands for Neodymium, and the '42' refers to the grade of the magnet, indicating its maximum energy product. Higher numbers like N42 signify a stronger magnet compared to lower grades (e.g., N35).
The product description states a pull force of 9.8kg. This is the maximum vertical pull strength when the magnet is in direct, flush contact with a thick, mild steel plate. Actual holding power can vary significantly based on the material, thickness, and surface conditions of the object it's attracting.
Neodymium magnets are very brittle and hard. Attempting to drill or machine them without specialized equipment and techniques can cause them to shatter. It is generally not recommended for DIY modification.
No. Small, powerful magnets like these are a serious choking hazard and can cause internal injury if swallowed. They should be kept well out of reach of children.
Store them at least a few inches apart from each other or with a steel barrier between them to prevent them from snapping together. Keep them away from electronic devices, credit cards, and any items sensitive to magnetic fields. A cool, dry environment is best.
The triple nickel-copper-nickel coating is designed for durability and corrosion resistance. Under normal use and handling, it should provide long-lasting protection. However, abrasive wear or exposure to corrosive environments could eventually affect the coating.
The triple coating offers good corrosion resistance, making them suitable for many damp environments. However, prolonged submersion in saltwater or highly corrosive liquids is not recommended and may degrade the coating over time.
Ensure the magnet is in direct, flush contact with a clean, mild steel surface. The pull force is rated under ideal conditions. Test against different steel objects to confirm performance.
Neodymium magnets are brittle. If a magnet is broken, it may have been subjected to excessive force or impact during transit. Inspect carefully and handle any broken pieces with caution.
Strong magnets can attract small ferrous items from a distance. Keep the work area clear of loose metal objects and store magnets properly when not in use.
Setup: These magnets are ready to use out of the box. Simply place them near a compatible ferromagnetic surface (like steel) or another magnet, paying attention to polarity if attraction or repulsion is desired. Ensure that the surfaces are clean for maximum magnetic contact.
Compatibility: These magnets are compatible with any ferromagnetic materials, such as iron, nickel, and cobalt. They can also interact strongly with other magnets. Avoid contact with electronic devices like credit cards, pacemakers, or computer hard drives, as the magnetic field can damage them.
Care: Handle with care. Due to their strong pull, magnets can snap together forcefully, potentially causing injury or damage to the magnets themselves. Keep them at least several inches away from sensitive electronics. Store them in a cool, dry place, separated from other magnets or steel objects to prevent unwanted attraction. The triple coating provides corrosion resistance, but avoid prolonged exposure to harsh chemicals or saltwater.
