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D5x4mm Neodymium Magnets N42 Round 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

D5x4mm Neodymium Magnets N42 Round Magnets

Dimension:

1. Shape2. Coating/Plating3. Diameter4. Thickness5. Tolerance6. Weight
Disc/Round/CircularNiCuNi
(Nickel-Copper-Nickel)
5 mm/0.196 inch4 mm/0.157 inch±0.05 mm/±0.002 inch0.596 g/0.001316 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:

      D5x4mm Neodymium Magnets N42 are small but mighty magnets that pack a powerful punch. These round magnets, measuring 5mm in diameter and 4mm in thickness, are made of rare earth materials and are known for their incredibly strong magnetic force. With a grade of N42, these magnets are some of the strongest available, making them perfect for a variety of applications where a small, yet strong, magnet is needed.
These small but powerful magnets are commonly used in crafts, DIY projects, and industrial applications. Their compact size makes them a popular choice for use in electronics, such as speakers, motors, and sensors. They are also ideal for use in jewelry making, magnetic clasps, and other decorative applications. The strong magnetic force of these 5mm round magnets allows them to securely hold even heavy objects in place.

Strength:

1. Approx. Pull Force0.633 kg/1.396 lbs
2. Approx. Min. Surface Field4,244 Gauss
3. Approx. Max. Surface Field4,456 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

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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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