Hefei Super Electronics Co., Ltd.
What Are You Looking For?
Powerful neodymium magnets provide strong magnetic force, making them suitable for workplaces, DIY projects, schools, and applications involving iron or steel surfaces.
Color :
SilverSize :
20x10x3mmOrder(MOQ) :
100pcsGrade :
N52Sample :
FreeLead Time :
3-15daysPayment :
Paypal/TT/Credit CardDropshipping Powerful Neodymium Bar N52 Magnets For DIY
Product Description

Length: 20mm(0.79inch)
Width: 10mm (0.39inch)
Thickness: 3mm (0.12inch)
Material: NdFeB
Tolerance: ±0.05mm
Plating/Coating: Ni-Cu-Ni
Magnetization Direction: Axial (Poles on Flat Ends)
Warning:
1. These magnets are very powerful which should be handled with great care to avoid pinched fingers or chipped magnets.
2. Do not allow children to play with magnets.
Product Features
【High Quality Ni-Cu-Ni Plating】
Manufactured using advanced electroplating technology, these heavy duty block magnets feature a triple layer nickel + copper + nickel plating. This surface treatment provides excellent corrosion resistance, minimizes dust adhesion, and prevents rust or scratches.
【Precise Dimensions with Minimal Tolerance】
Each strong magnetic force bar magnet is made from rare earth neodymium material and measures 20 × 10 × 3 mm (0.79 × 0.39 × 0.12 inches) with a tolerance of ±0.05 mm. These small, precise magnets are ideal for DIY projects, everyday use, office organization, and tool storage.
【Powerful Neodymium Magnets】
Made from high grade neodymium material, these durable block NdFeB magnets are 10 times stronger than ordinary ferrite magnets. They provide strong, stable, and permanent magnetic force.
【Wide Range of Applications】

1. Hold notes, documents, receipts, and reminders on magnetic boards, whiteboards, and refrigerators
2. Organize papers and display information in offices, schools, and classrooms
3. Support DIY projects, crafts, and science experiments
4. Assist with tool organization and storage in garages and workshops
5. Suitable for commercial and light industrial use
Method For Separating Magnets
Customer Service
If you have any special requirements or project inquiries, please contact us. We are committed to providing efficient, reliable, and customer centric service, including the following support:
Customization Options: Size, shape, magnetization direction, coating, and magnet grade can all be customized to meet specific application needs.
Technical Consulting: We provide advice on magnet selection, performance, and suitable solutions for different application scenarios.
Sample Support: Customized or standard samples are available for testing and evaluation before mass production.
Order Flexibility: We support both small trial orders and large scale production orders.
Logistics Solutions: We offer various transportation options based on delivery time and cost requirements.


| Neodymium | Br | Hcb | Hcj | (Bh)max | Tw | ||||
| Grade | mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ℃ |
| N35 | 1170-1220 | 11.7-12.2 | >868 | >10.9 | >955 | >12 | 263-287 | 33-36 | <80 |
| N38 | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >955 | >12 | 287-310 | 38-39 | <80 |
| N40 | 1250-1280 | 12.5-12.8 | >907 | >11.4 | >955 | >12 | 302-326 | 38-41 | <80 |
| N42 | 1280-1320 | 12.8-13.2 | >915 | >11.5 | >955 | >12 | 318-342 | 40-43 | <80 |
| N48 | 1380-1420 | 13.8-14.2 | >923 | >11.6 | >955 | >12 | 366-390 | 46-49 | <80 |
| N50 | 1400-1450 | 14.0-14.5 | >796 | >10 | >876 | >11 | 382-406 | 48-49 | <80 |
| N52 | 1430-1480 | 14.3-14.8 | >796 | >10 | >876 | >11 | 398-422 | 50-53 | <80 |

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