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D3x4mm Neodymium Magnets N42 Disc Magnets

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 quantityTolerance:±0.05mm
Grade:N, M, H, SH, UH, EH, AHDensity: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 gradesCertifications:RoHS, SGS, REACH, MSDS
MOQ:≥1 pieceCountry of Origin:China
Customization:Shape, Package, LogoBrand 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.

package

 

Product Details

D3x4mm Neodymium Magnets N42 Disc Magnets

Dimension:

1. Shape2. Coating/Plating3. Diameter4. Thickness5. Tolerance6. Weight
Disc/Round/CircularNiCuNi
(Nickel-Copper-Nickel)
3 mm/0.118 inch4 mm/0.157 inch±0.05 mm/±0.002 inch0.214 g/0.000473 lbs

 

Technical Specifications:

1. Grade2. Br3. Hcb4. Hcj5. (BH)Max6. Operating Temperature
 N4213,000-13,300 Gauss11.0-11.6 kOe≥12 kOe40-42 MGOe80℃/176℉

 

Description:

      D3x4mm Neodymium Magnets N42 are small but mighty magnets that can hold up to 0.179 kg/0.395 lbs of weight. These 3mm round magnets are made of neodymium, one of the strongest magnetic materials available. Their small size makes them perfect for use in tight spaces where a larger magnet won’t fit. Use them in DIY projects, arts and crafts, or as a fastener for small items. These small round powerful magnets are perfect for holding notes, photos, or other small items on a fridge or magnetic board. The 3mm neodymium magnets can also be used in magnetic therapy, or as a component in electronic devices. With a nickel-plated finish, these magnets are corrosion-resistant and can withstand high temperatures. Get your hands on these small yet powerful magnets today and discover all the ways you can use them in your projects!

Strength:

1. Approx. Pull Force0.179 kg/0.395 lbs
2. Approx. Min. Surface Field3347 Gauss
3. Approx. Max. Surface Field3514 Gauss
4. Magnetization DirectionAxial

 

Please note that this is only an estimate, and the actual surface field strength may vary depending on a variety of factors.

Polarity: Axial

neodymium magnets axially magnetized disc magnets

submit your inquiry here!


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Reviews

Rated 4.0 out of 5
October 2, 2023

powerful neodymium magnet!

Raymond Jones
Rated 5.0 out of 5
October 2, 2023

Strong disc magnets!

Chris Nelson
4.5
Rated 4.5 out of 5
4.5 out of 5 stars (based on 2 reviews)
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