ALB Materials Inc
2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
United States

25mm diameter magnet

Neodymium Magnets 01/02/2020

25mm diameter magnet

25mm diameter, wide magnets, 3.5kg Pull Neodymium Magnet

25mm diameter/wide magnets

A selection of magnets measuring 25mm in diameter (for disc/sphere magnets) or 25mm wide/long (for rectangular magnets).

In this section, you will find high-performance neodymium magnets, great value ferrite magnets, high-temperature resistant samarium cobalt magnets, flexible adhesive magnets, and traditional alnico bar magnets.

12 Tesla, 25mm Split Helix Magnet

Maximum Field: 12 teslas; Bore Diameter: 12mm;

The Split-Florida Helix (SFH) magnet is the first modern powered magnet optimized for advanced optical spectroscopy techniques requiring wide, free-space access to samples.

The SFH magnet uses similar technology as in other Florida-Bitter designs, except that the conducting helix in the region around the mid-plane is replaced with a solid conductor having four wide optical ports evenly spaced around the perimeter and milled for the largest solid angle collection volume.

The magnet features four identical ports radially arranged at 90° intervals around the mid-plane of the 32 mm vertical bore.

A cutaway view (see below) of the magnet shows two of these ports, each providing ± 22.5° free-space angular access (in the horizontal plane perpendicular to B) and ± 5.7° access (in a vertical plane parallel to B) to the center of the vertical magnet bore.

Calendar Magnets

Car Magnets

Stock Shape Magnets

4-Color Process Business Card Magnet .25 Mil.

0.25 Mil 3 Inch Diameter Circle Magnet.

Custom Shape 16 - 25 Square Inch Indoor Magnet.

25mm diameter Disc Magnets

Disc Magnets.

Diameter: 0.0625'' (1/16'').

Thickness: 0.021''.

Grade: N50.

Plating: Ni-Cu-Ni.

Power: 0.5 lbs.

25mm diameter magnet


Sold in quantities of 50000

N48, N50, N52 Strongest Rare Earth Neodymium Magnets

Magnetized through 1/2"

pull force: 25 lbs

N52 Rare Earth Sphere Magnets 1.5 inch Diameter Neodymium Ball

Welcome to Applied Magnets where we sell strong magnets for less.

One category of strong magnets that we have in stock is a whole line of ceramic magnets.

Our ceramic magnets are high in demand and are highly versatile.

These have been used in many an industry and with a high success rate.

You can never go wrong with our huge assortment of ceramic magnets.

From inducers, electromagnets and transformers magnets have been used in everything.

We stock both ceramic blocks and rings for whatever projects you need them for.

Browse our site for the most comprehensive selection of ceramic magnets on the web.

Look through our picture gallery to find the product you are looking for and we will deliver it to you.

Many materials have unpaired electron spins, and the majority of these materials are paramagnetic.

When the spins interact with each other in such a way that the spins align spontaneously, the materials are called ferromagnetic (what is often loosely termed as "magnetic").

Due to the way their regular crystalline atomic structure causes their spins to interact, some metals are (Ferro)magnetic when found in their natural states, as ores.

These include iron ore (magnetite or lodestone), cobalt and nickel, as well the rare earth metals gadolinium and dysprosium (when at a very low temperature).

Such naturally occurring (Ferro)magnets were used in the first experiments with magnetism.

Technology has since expanded the availability of magnetic materials to include various manmade products, all based, however, on naturally magnetic elements.

Not only do we have a collection of ceramic magnets but we also have a large range of Neodymium Magnets as well.

These magnets are very robust in relation to their size.

Popular with industries and hobbyists.

albmagnets supplier car assemblies d22 d43 d6

Neodymium magnets are used in a wide variety of applications.

From hard drives to headphones to loudspeakers these magnets have seen it all.

Ceramic Magnets or ferrite

Ceramic magnets, or ferrite, are made of a sintered composite of powdered iron oxide and barium/strontium carbonate ceramic.

Due to the low cost of the materials and manufacturing methods, inexpensive Ceramic magnets (or nonmagnetized ferromagnetic cores, for use in electronic component such as radio antennas, for example) of various shapes can be easily mass produced.

The resulting Ceramic magnets are noncorroding, but brittle and must be treated like other ceramics.

Neodymium-iron-boron (NIB)

Neodymium magnets, also referred to as neodymium-iron-boron (NdFeB) magnets, have the highest magnetic field strength, but are inferior to samarium cobalt in resistance to oxidation and temperature.

This type of magnet has traditionally been expensive, due to both the cost of raw materials and licensing of the patents involved.

This high cost limited their use to applications where such high strengths from a compact magnet are critical.

Use of protective surface treatments such as gold, nickel, zinc and tin plating and epoxy resin coating can provide corrosion protection where required.

Beginning in the 1980s, NIB magnets have increasingly become less expensive.

Even tiny neodymium magnets are very powerful and have important safety considerations.At Applied Magnets you will get the best possible price on these Neodymium magnets.

All you have to do is just browse and choose from our huge selection and we will do the rest.

Plus with shopping online you get the modern convenience of buying from your home or place of business.

Nonetheless, our neodymium magnets come in many different shapes and sizes.

From blocks, cubes, spheres, cylinders to arcs and rings;

we here on our website offer it all.

We can supply you with our neodymium magnets better then the other suppliers out there.

Neodymium Cylinders Magnets - Super Magnets

Excellent as a sensor magnet, speaker magnet, consumer electronic magnet magnets can be magnetized through the length or across the diameter.

0.030" (0.75mm) dia x 0.039" (1mm) long, Set of 25 pcs, N50 Neodymium Magnets Rare.

Cylinders LENGTH:? 0.5mm - 1mm | 1.1mm - 2.54mm | 2.55mm - 4mm | 4.1mm - 5mm | 5.1mm - 7mm | 7.1mm - 10mm | 10.1mm - 12.7mm | 12.71mm - 19.05mm | 19.06mm - 53.8mm+

Neodymium cylinder magnets are typically used in medical, sensor, read switches, meters, and holding applications.

small cylindrical bar magnet ndfeb neodymium cylinder

Neodymium Cylinder magnets can be magnetized through the length or across the diameter.

The shape of a neodymium cylinder magnet produces a magnetic field with a longer reach.

If you require a specific size that is not available on our website, please contact us or use our online custom magnet quote form.

Neodymium disc magnets / buy round magnets

In our super magnet online shop, you can order round magnets at inexpensive scaled prices!

In our shop, you can find tiny, millimeter-flat magnets as well as thick discs with a diameter of several centimeters. Compact & 0,25 US.

Neodymium magnets: Especially strong as discs

We offer our disc magnets in almost 1000 different sizes.

They have adhesive forces from 25 g to 140 kg, so you can find the right product for your needs.

They are so-called raw magnets where the magnetic flux lines are dispersed in the air around the magnet (in contrast to pot magnets ).

This large-scale distribution allows for the attraction of metallic objects from a large distance.

The direction of magnetization of disk magnets

Most of our neodymium disc magnets are axially magnetized.

This means the poles are located above and below on the circular surface.

A few are diametrically magnetized (poles left and right), which we have marked for you.

By the way: Neodymium magnets with a height larger than their diameter we have categorized as rod magnets.

Possible application areas:

Furniture construction: lid and drawer clips with especially flat glue-on or screw-on magnetic discs

Metal, booth and store construction

Purse and clothing clasps to sew-on

Our round magnets can be easily glued into depressions (e.g.

for a knife, racks ) or on the backside of small items, for instance for magnetic board or fridge magnets.

Find some more inspiration under our applications with disc magnets .

Tip: Use our tool to calculate adhesive force of disc magnets at various distances.

permanent arc neodymium magnet custom magnet neodymium

Disc magnet coatings

Our disc magnets come in the following models:

nickel-plated (standard)

Neodymium magnets are the strongest permanent magnets available.

They usually have a maximum operating temperature of 80C unless they are specifically made for a higher operating temperature.

The uses of Neodymium magnets are very varied but care must be taken because they are brittle, do not flex and may jump together and break!

25mm Diameter Ring Magnets

Ring magnets are flat circular magnets (similar to disc magnets), but with a hole through the center.

Ring magnets are measured by the outer diameter (OD), inner diameter (ID) and thickness (T).

The outer diameter measurement is always greater than the thickness.

Uses for ring magnets

Ring magnets are often used on a spindle, axle, shaft or rod.

Ring magnets in this context regulate at what mechanical threshold components subject to its magnetic field can move and how fast.

Components expressing insufficient mechanical intent or pressure remain stationary.

Housed in linkages mediating between motors, shafts and gearing assemblages, ring magnets assist in the control of mechanical force.

Ring magnets are often part of fail-safe devices, torque limiters or an overload clutch.

These mechanisms are designed to protect motors and associated apparatus in jam or ‘crash stop’ events by returning equipment to a risk-free state.

ALB Magnets offers two types of ring magnets:

Neodymium Ring Magnets are one of the most popular shapes of rare earth magnets.

The hole in the center of the magnet ensures great versatility. Magnetic rings are often used in joinery and shop-fitting as they may be recessed and screwed into position.

We also have ring magnets that have a countersunk hole.

Countersunk ring magnets are widely used in the construction industry for soft door closures in kitchen and bathroom cabinets.

Ceramic Ring Magnets are similar to Ceramic Discs but with a hole in the middle, which makes them a versatile magnet option. One popular application is the fishing game, tied on a piece of string, or to pick up pins and needles. Ceramic (or ferrite) ring magnets have less magnetic strength (due to the hole) but their inexpensive pricing makes them a customer favorite.

Need more information?

Feel free to contact our sales team any time if you have questions about our magnets or need help choosing the right magnet.

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How to choose and buy a strong neodymium magnet? ALBMagnets is a professional company for strong magnet design and manufacturing,
providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.

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