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Neodymium Block Magnet - 30mm x 10mm x 5mm | N35

Product code: B-W10H5L30-N35

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Neodymium Block Magnet - 30mm x 10mm x 5mm | N35

Rated 5.0 out of 5
Based on 1 review
Product Code B-W10H5L30-N35
Pull Force* 6.2 Kg
Weight 20 gm
Style Rare Earth Block
Gauss 3218
Grade N35
Coating Nickel
Direction of Magnetisation Axially (through height)
Dimensions Width:10mm, Height:5mm, Length:30mm
*Measured against up to 10mm mild steel.
Neodymium Block Magnet - 30mm x 10mm x 5mm | N35

Magnetic Product Description:

This neodymium magnetic block has a length of 30mm, width of 10mm and a height of 5mm. It has a pull force of 6.2 kilos. It is identified by the AMF magnet part number B-W10H5L30-N35.

Uses for our rare earth block magnets:

Rectangular magnets or block magnets, such as this N35 example are commonly used as a component part within magnetic knife holders and tool holders along with a range of other magnetic holding devices. Block magnets are normally axially magnetised through the height, so the largest surface area is typically where the north and south poles are present. These large rectangular pole surfaces provide a larger contact area for a secure bond with metallic materials.
Neodymium magnets are a surprisingly brittle and as such, they are often encased within steel or a metal housing to protect them from damage. This is certainly the case with commercial products designed for holding applications as these usually incur a considerable amount of impact during use and need to be durable. Most holding devices consist of multiple bar magnets placed end to end inside a metal or plastic channel to increase the contact area and holding capacity of assemblies such as tool holders and magnetic sweepers. The magnetic field of such items needs to be as broad as possible in order to remove hazardous metal debris and swarf from workshop and factory floors.

Neodymium magnets are the strongest type of permanent magnet available however they are not always the best choice for every application. In applications where a deeper or wider magnetic field is required, it may be more appropriate to choose a Ferrite block magnet. 


average rating 5.0 out of 5
Based on 1 review
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1 Review
Reviewed by Paul S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Helpful and efficient.

I needed some advice on magnets for a knife board. Danielle gave me plenty help including great YouTube references. Everything worked out well. Magnets were perfect delivered really quickly.

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NB: Ranges are indicative for product category, please check individual products for specic values within that range.

The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.

Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.

Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.