D50x25mm Neodymium Magnets N42 - Explore our selection of round Neodymium magnets, 50mm in diameter and N42 grade for strong magnetic performance.
Manufacture Capacity and Product Details
Composite: | Nd(Dy, Tb), Fe, B, Pr, Al, Cu etc. | Chemical Formula: | Nd2Fe14B |
Lead Time: | 7-25 days depending on quantity | Tolerance: | ±0.05mm |
Grade: | N, M, H, SH, UH, EH, AH | Density: | 7.4-7.65 g/cm³ |
Surface Treatment: | Zn, Ni, NiCuNi, Cr, Epoxy, Ag, Au etc. | Default Fillet: | r=0.2-0.5mm |
Working Temperature: | 80℃-240℃ depending on different grades | Certifications: | RoHS, SGS, REACH, MSDS |
MOQ: | ≥1 piece | Country of Origin: | China |
Customization: | Shape, Package, Logo | Brand Name: | Uwandy Magnets |
Payment & Service
Payment | amount<$500 | 100% in advance | PayPal, T/T, WU |
$500<amount<$3000 | 100% in advance | T/T, WU, D/P | |
$3000<amount<$30000 | 50% deposit in advance, balance before shipment | T/T, WU, D/P | |
$30000<amount | 30% deposit in advance, 50% before shipment, 20% balance to be negotiated | T/T, D/P, L/C | |
More better payment tems can be offered for regular customers | |||
Service | 1. We provide CAD drawing service for your order | ||
2. We can offer suggestions on grade selection or better solutions for your project | |||
3. We can offer free samples(value less than $50) to regular customers |
Safety Warning
Neodymium magnets are brittle, super strong, easily shattered and broken, Here are some tips that will help when working with neodymium magnets: |
1. Wear eye protection and gloves when working with magnets if necessary. |
2. Slide the magnets rather than pulling off the stack. |
3. Keep away magnets from kids in case accident happens. |
4. Keep away magnets from objects that might cause damage like smartphone, GPS, pacemaker or other electronic devices. |
5. Do not put magnets in high temperature environment, magnets will demagnetize while they are over heated. |
6. Magnets can rust and get scratched because magnets contain iron and mostly are nickel plated. |
Packing & Shipping
General Packing | 1.Clear plastic bag→Small white box→Foam padding carton(36x24x16cm) |
2. We will insert at least 6 pieces of steel sheets to block magnetic field for air transport | |
Shipping Method | Express, Air, Sea, Train, Truckload |
Shipment Terms | EXW, FCA, FAS, FOB, CFR, CIF, CPT, CIP, DAT, DAP, DDP etc. |
Product Details
1. Shape | 2. Coating/Plating | 3. Diameter | 4. Thickness | 5. Tolerance | 6. Weight |
Disc/Round/Circular | NiCuNi (Nickel-Copper-Nickel) | 4 mm/0.157 inch | 3 mm/0.118 inch | ±0.05 mm/±0.002 inch | 0.286 g/0.000631 lbs |
1. Grade | 2. Br | 3. Hcb | 4. Hcj | 5. (BH)Max | 6. Operating Temperature |
N42 | 13,000-13,300 Gauss | 11.0-11.6 kOe | ≥12 kOe | 40-42 MGOe | 80℃/176℉ |
Introducing our powerful D4x3mm Neodymium Magnets N42, perfect for various applications that require strong magnetic force in a small package. These 4mm magnets are made of high-quality neodymium material and have an N42 grade, which means they have a maximum energy product of 42MGOe. Their compact size of 4mm x 3mm makes them an ideal choice for small projects or applications that require a discreet magnet. Our small neo magnets are versatile and can be used for crafting, jewelry making, scientific experiments, and more. Don’t underestimate their size, as they pack a strong magnetic force that can securely hold up to 0.387 kg/0.853 lbs. Get your hands on these reliable and powerful 4mm neodymium magnets for your next project or experiment!
1. Approx. Pull Force | 0.387 kg/0.853 lbs |
2. Approx. Min. Surface Field | 40,56 Gauss |
3. Approx. Max. Surface Field | 4,259 Gauss |
4. Magnetization Direction | Axial |
Please note that this is only an estimate, and the actual surface field strength may vary depending on a variety of factors.
D50x25mm Neodymium Magnets N42 - Explore our selection of round Neodymium magnets, 50mm in diameter and N42 grade for strong magnetic performance.
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Neodymium magnet or NdFeB, is currently the magnetic material with the highest energy product. Its chemical formula is Nd2Fe14B. Neodymium can be replaced with lanthanide...
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