The best thing about this switch is that you can manufacture your products much smaller and lighter. With the higher BHmax score you will need less material, less packaging around it and less space in general. You should think about whether or not there will be a cost reduction that is comparable.

Your decision making process should be concerned with the improvements in performance, the cost involved with obtaining that performance, the reduction in power consumption and how that affects the systems around it and any other factors that this conversion will put on the product as a whole.

Something that may escape some people is that the electrical conductivity of rare earth magnets is very large when compared to other types of magnets. This comes into play greatly in motors and generators where heat can be generated due to the altering of the magnetic field due to the moving parts.

The adhesion choices you make are important because the thermal expansion rate of rare earths are vastly different from ferrite magnets. It is critical that you choose the right adhesive to match where and how the magnet is being used to minimize issues during regular use.

A use that is sometimes overlooked is as advertising. Magnetic rolls and sheets are often used for this purpose, but a strong rare earth magnet holding up you advertising, or handed out as a promo, is a sure way to get some attention!

Contact us at Jobmaster Magnets if you need any help sorting through these issues. We would be glad to help you!

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The worlds of manufacturing and business are huge and encompass so many different work actions that no magnet manufacturer could possibly have stock on hand to meet every need. Getting that magnet that is just right for the size, strength needs and temperature tolerance for your application can be essential to your work-flow. Buying the right magnet can increase productivity and decrease downtime due to equipment failure.

A reputable manufacturer of magnets made to order will follow three steps to make you the best magnet possible:

1. Talk it out

All you need to do is talk about how the magnet is going to be used to begin the design process. When possible, a stock magnet could be located for your use rather than a custom one. If one must be made for your specific functions and you need to keep it under wraps, a non-disclosure agreement will be no problem for a trustworthy company to sign.

Do not confuse custom magnets with custom made magnetic advertising and signage sheets. These are a different kind of custom manufacturing.

2. Describe the environment

Where the magnet will be used, and the temperatures it will be exposed to, are a big determining factor in what material is best. After this, consider what the magnet will be doing in regards to the work it performs. One which is mounted to a robot arm that moves about will need to be different from one that holds a part in a static position. A great help will be bringing photographs of the part that is being moved or held, the part itself will be even better.

3. Present your ideas

You know your company and work needs better than anyone else. Come in with a few sketches, photographs of your shop, and a written proposal of anything you can think of that could help.

These 3 steps are the first in a design process that will leave you with that perfect magnet for your manufacturing application. Contact Jobmaster Magnets today to start this rewarding journey with us!

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Rare Earth and ceramic magnets are types of permanent magnets. They are composed of materials which will hold a charge for years to come unless they are damaged. They are not the same when it comes to strength and resilience in adverse conditions as the metal alloys used to make them are different.

A ceramic magnet is also known as a hard ceramic magnet or a ferric magnet. Whichever name is used, they are made from either barium ferrite or strontium. They have been in use since the 1960’s and were a popular choice as they were found to be cheaper and more powerful than the previously available nickel/cobalt and steel magnets. These cheaper materials are still useful today for magnetic sign and advertising making purposes.

A rare-earth magnet is made of either samarium cobalt or neodymium-iron-boron. They get their name from being in the lanthanide series of elements on the periodic table. The first type were made of samarium cobalt, they were developed in the 1970s. Neodymium became available for purchase in 1984.

Where they differ greatest is in their strength. Magnetic strength can be measured in the BHmax of the magnet. The higher the number the more powerful the magnet. A ceramic magnet has a BHmax of 3.5. A samarium cobalt has a BHmax of 26, and a neodymium tops out at a BHmax of 40, just over 10 times stronger than a ceramic magnet! Does it being the strongest make it the best in all situations? Read on to find out more.

The other test is resistance to thermal stress. A magnet will lose strength when heated to a certain temperature known as the Tmax. Neodymium magnets, the most powerful, have a Tmax of 150 degrees celsius. Ceramic and samarium cobalt have a Tmax of 300 degrees. Another measure is the Tcurie, this is the temperature that will push a magnet beyond its ability to recover once cooled and will be permanently ruined. Neodymium is at 310 degrees Celsius, ceramic is at 460 degrees and samarium cobalt can go as high as 750 degrees.

Contact us at Jobmaster Magnets for help choosing the right magnet for your needs and unique situation.

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Choosing flexible magnetic sheets for your next round of marketing and signage is a great idea. They offer fantastic design options and can be put in any number of different locations. There are no sticky glues, complicated applications or messy removals. Let’s get right into looking at why they do this so well.

• They are nearly limitless in their design potential. They can also be changed at nearly any stage in the design process, you may say they’re flexible in more ways than just physically
• As distributed advertising, either as giveaways at the point of sale or handed out in public, they have a higher cool factor than paper does
• They add a kind of interactivity that elevates their value. This means that they are something you can give away to customers so they have something to hold and put on their fridge or any other place they like
• You can update them quickly and neatly at any time if they are a static display. All you need to be is stronger than the magnet and there is no mess left behind
• They can be part of a green plan since they can be reusable and reposition-able at any time
• They have great reliability and longevity since they are a much more solid material than paper
• The right type are actually safe to use near CDs, DVDs and your software
• They can work with any sort of inventory control tracking you may need such as barcoding and RFID tracking
• A good company will have on hand stock available to you on demand, and short turnaround on custom orders specific to your business
• Reputable dealers will distribute sheets with permanent holding power that will last a long time. This prolonged useful time-frame increases the amount of time the ad is useful to you
• If vandalism strikes, or if an outdoor display has weather takes a toll on it over time, you simply take it down, have a new image printed out and put it right back up

The number of ways you can use magnet sheets for advertising and signage is only limited by your imagination. Think of it as paper with an added level of interest and coolness.

Contact Jobmaster Magnets to request a quote on all of your magnetic needs.

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Industrial magnets are a broad category of magnets made for industrial purposes. Each type will serve a specific purpose. For instance, some are good at being used as magnetic sweepers, other excel at being used as magnetic lifters, and some are used in magnetic assemblies.

The actual materials present in the beginnings of industrial magnet use were simple ferritic materials such as iron. Iron oxide would usually be the core material, it was important due to how naturally magnetism came to it.  The problem is that these types were too brittle and prone to breaking back then. Further advances have helped to cure this.

This lead to the development of nickel and aluminum alloys being the building block for most stock magnets. These were made from aluminum, nickel and cobalt with some iron and going through a sintering process. These had great strength even under high temperature conditions.

While the above magnets are still a good option, some found they needed more strength than these offered. The introduction of rare earth magnets gave industry the powerful magnets they needed that also had a strong resistance to demagnetization. There are two types: neodymium and samarium cobalt. Both are strong enough for nearly anything you could ever throw at it, but samarium cobalt has a higher tolerance for temperature. Neodymium has been improved lately by combining it with other rare earths, bringing its temperature tolerance up, but check with your supplier when choosing between samarium cobalt and neodymium rare earth magnets.

Contact us today to meet your current need for industrial magnets.

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Neodymium magnets are an incredibly powerful type rare Earth magnet. While magnetism on its own is cool, what can you actually do with a powerful magnet? Here are a few uses that can be applied to your home or business.

Holding tools

You can keep your tools handy by clipping them to magnets. Just mount a strip of them to the wall and have a much more attractive option to nails jutting out of your wall.

Rotating devices

You can get an even smooth feel at the position detents of your rotating devices by using a neodymium magnet.

Frictionless spring

If you have a shaft that needs some object slid along it a pair of doughnut shaped neodymium magnets that oppose each other can act as a frictionless spring.

Latches

Smaller sized magnets can be used to create latches in all sorts of applications from electronics applications, to battery compartments, to briefcases and any other latchable product.

Mobile shelves

Building small shelves that can attached to the side of your tool chest can give you different shelf heights for holding tools while you work in different positions.

An extra set of hands

You can use a neodymium magnet to hold a part in place during gluing, welding or soldering. Just be sure to move the magnet far enough away that it doesn’t get attached in the wrong way!

Makeshift stud finder

They can be a low tech stud finder. You won’t actually be finding the studs, you’ll pass the magnet over a wall and find the nails that attach the wall to the stud.

This is a short list, the uses for neodymium magnets keeps growing as new ideas emerge. Contact us today if you would like to buy a neodymium magnet in your work place!

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Having permanent magnets available around the work site can help speed up jobs done around the work site, make some jobs possible, and be a vital part of your manufacturing process. Without magnets in some application the work could simply not happen. Read on to discover what magnets can do at your workplace.

Magnetic Sweepers

A magnetic sweepers is used to help lower maintenance costs by removing potentially harmful metal objects from working areas. They act like a magnetic broom that keep tires from being punctured on loading docks, driveways, and airport landing strips. They can also help clean up employee work areas, removing metal from the floor that could be stepped on.

Sorting Materials

Magnets can be used to sort out magnetic material from non magnetic material. This is especially helpful in the mining industry to separate the metal being mined from ore. In the food industry manufactures use magnets to pull tiny iron particles out of food. A more miscellaneously used sorting method is using permanent magnets to remove coins from other materials.

Separation of materials

There are all kinds of magnetic conveyors, separators, plates, pulleys and grates that are being used to separate ferrous material from industrial flow. Magnets similar to these are also used to recover ferrous objects from the depths of the ocean during ship salvation operations.

Manufacturing of products

Several products have permanent magnets in them as part of how they work. Examples include: headphones, computer and stereo speakers, doorbells,  telephones, microwave ovens, televisions, computer monitors, power supply transformers and still many more. Without a permanent magnet it would not be possible to manufacture these products.

Contact us today to find the right permanent magnets for your application!

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Rare Earth magnets function much the same as all other magnets: they produce a magnetic field which attracts ferromagnetic materials such as iron, cobalt and nickel. The strength of magnets ranges from very low to very strong. The very strong magnets are the rare earth type.

You can measure a magnets overall strength, known as the magnetic moment, by measuring the magnitude of each elementary particle within it and obtaining the net moment that way. This can only be used for magnets with inherent magnetism in them. Those that use electricity have to be measured differently.

On commercial magnets you will typically find a magnet’s strength graded by its gauss rating. There are two main magnetometers that measure this. One looks at the objects net magnetism, these are called scalar devices. Common examples of these include Hall effect magnetometers, rotating coil magnetometers, and proton procession magnetometers. The other type tracks the vectors of magnetism by measuring the strength of the objects magnetic field in a certain direction, this is called a vector device. These types are known by the name superconducting quantum interference devices, (which sound much more sinister than they really are) fluxgates and atomic SERFs.

You should note that the magnets gauss rating does not actually reflect the surface magnetism it possesses. What is actually measured is the core strength which is usually much stronger than the surface strength. The magnetism of any magnet reduces the further you get away from it.

Pull strength is becoming more common for people using magnets at home. It is easy to understand as it simply measures the amount of weight a magnet can pull. A Pull-Tester is used to measure this.

No matter which tests are used, rare earth magnets are consistently found to be some of the strongest available for purchase on the market. Contact us today to find the size that’s right for you!

A bar magnet has two ends known as the north pole and the south pole. The north end of the bar magnet is commonly painted red and will always point north when freely suspended. This is why a compass points north, the needle itself is a magnet.

A bar magnet is commonly made of various ferromagnetic materials, this includes iron, cobalt and nickel. These materials commonly have a magnetic field already. Other materials that can be included in the composition of a bar magnet are aluminum, resin and clay.

The appeal of magnetic materials is of course their magnetic attraction to ferromagnetic materials. This is used either when the magnet needs to be pulled to the material, or the material needs to be pulled to the magnet. The latter is useful when picking up small items such as screws or metal shavings as a kind of magnetic vacuum, or it can be used on a laboratory hot plate as a stirring rod.

Bar magnets have been used for many years to show magnetic fields visually. An easy way to visually see magnetic fields is to take some metal shaving and place them on paper. Put a bar magnet underneath the paper and over time the metal shavings will align in arcs with the north and south poles of the magnet. This can be a fun little experiment that you can conduct with the bar magnets you find for sale to peek the scientific interest of young children.

The source of magnetism is the atomic magnetic dipole. Down on the atomic level these magnetic dipoles usually result from two types of movement of the electrons. The movements are the orbital motion the electron takes around the nucleus, and the spin dipole magnetic moment. To be technical, the orbit the electrons take around the nucleus are not really orbits as you’d picture them, and the ‘spin’ of the spin dipole magnetic moment is not really ‘spinning.’ Electrons that are not paired have the tendency to contribute to somethings ability to become magnetic. This is because the electron magnetic moment can not be cancelled out entirely when there are odd numbers of electrons.

The neutrons and protons in the nucleus of the material also have magnetic and spin angular momentum. The electronic magnetic moment is much stronger than the nuclear magnetic moment due to the fact that although the angular momentum of differing particles may be comparable, the is an inverse proportional relation to the magnetic moment.

Using a magnet is very simple. You want to put something on your fridge so you grab the nearest magnet and stick it up there. The underlying process as to how this works is much more complex than the outward appearances would suggest and is not entirely understood by science at the atomic level. A magnet is a simple object to use, and a complex one to understand.