Combine 2 PCS Super Neodymium Magnet

Combine 2 PCS Super Neodymium Magnet

This is a post just want to show you our mad magnet experiments. This will be our craziest so far. We are sure you haven’t seen this before. We’ll attempt to combine two 6×2 inch neodymium magnets. It is very dangerous and a hard work. Because of magnets with a rated pull force of 1200 kg each. Is it even possible or will us fail and end up with an expensive pile of magnet crumbles? We will show you the result.

Before the testing, we should remind you that, Neodymium magnets are not toys! Do not handle magnets of the shown size unless you know and accept all the risks involved.So why would we even attempt this? Because we know most of the people will interested at that, but as it also a dangerous testing. So let us take the risk.

6*2 inch super magnet

Both of them are 6x2inch. Since then we’ve been planning how to combine the two magnets in a controlled way.

Neodymium magnets are brittle like a ceramic dinner plate and with a ton of pull force – literally – this project is more difficult and dangerous than you might think. It takes some preparation to avoid chipping or even shattering the magnets.

We have used wedges made of hardwood in the past but they are not solid enough for larger magnets.we hope these felling wedges made of plastic are the solution.

They are designed to be solid and not pop out when the weight of a tree is pushing down on them.But our worry is not them falling out. Getting them stuck in the pinch between the magnets is the problem. So we will off with the spikes.So far it’s been a one-man project to combine our magnets.

As this testing is very dangerous and we worry about the magnet will stuck. So we call for a secret helper. Helper has absolutely no experiences in handling powerful magnets but will more than double our forces in men versus magnets.

The first magnet is placed with its south pole facing upwards. And the heavy wedge is placed over the magnet.

We double-check the polarity and notice the low gauss reading above the wedge.

25 cm or 10 inch from the magnet. It is only 1% of the gauss reading flat at the surface of the magnet. Nicely low for safety but we still secure the wedge with some old belts to make sure the bottom magnet isn’t suddenly set free. The other magnet is placed in a carrier to make sure we never have our fingers between the magnets – again with the south pole upwards.

After an easy lift on it is time for the slide. One man pulling the wedge and one man pulling the magnet in opposite direction and trying to keep everything centered over the bottom magnet. And we can hear a sound which is the bottom magnet lifting up from the ground.

The magnets are now pinned on each side of the wedge. After reaching the plastic part the forces are now too high for this to work.

Even with the secret helper pulling so hard that everything slides across the carpet the magnets are not coming any closer.

We are so worried about that is this where it ends?

Time to come up with a plan B.

We decided to turn it into a tug of war.

Two men at one end and the two magnets at the other.

By a flaw in our design, it is possible for the wedge to go off-center. So of course, it happens…Off-camera we managed to center the wedge a millimeter at the time with a lot of twisting and manhandling.

 

After the final pull! However, it didn’t last long before something shook us. The noise was loud and unexpected! Still not sure what made this sound?

Your guess is as good as mine. After checking nothing bad has happened, so we carry on.

What a relief at that moment. The magnets are not stuck on the wedge and no humans or magnets were harmed. Only damage is a bite to one of the felling wedges. A tiny bit is stuck between the magnets but it is so flattened that it isn’t a problem. The magnets aren’t perfectly centered but with an awkward technique, we manage to align them.

Once all of the edges are aligned the magnets will not move anymore.They feel like welded. So here it is a 6×4 inch neodymium magnet.

More compact and safer to store than the two separate magnets and with a solid magnetic field. As you can say our table isn’t all wood.

We are so happy that this experiment ended so well. Maybe in future, we will think about how separate it.

 

manget with TV

When the neodymium magnet meets the electronic product

Most of the people were told that”Don’t put the magnet close with the electronic product. Because the electronic product will be damaged.” Is that true? And is there anyone know what the damage is?

In this post, we’ll test what happens when we put a very powerful 6-inch neodymium magnet close to the electronic product, like a PDA, a calculator, different TVs and a computer.

Some will survive, others… well let’s just see…

First up is the iPAQ.

No, not iPad – the iPAQ. The PDA which is like a smartphone but just without the phone. When we put it on the magnet, the PDA decides to turn itself on. It never did before. Other times it completely reboots. However, it does seem to work even when directly on top of the magnet. The magnet did break the battery lid into pieces but there was no instant electrical death.

The PDA did refuse to turn on at some point even though we held the battery in place. This was solved by taking the battery out and putting it back in. The li, however… never worked again…

The calculator worked flawlessly. It could do simple math, dividing by zero was still a major error. And even a sine-wave graph looked alright. It does help that the backplate and battery lid are held by screws. Very impractical when changing batteries but good for fighting a magnet.

manget with TV

Next on the test bench is a 21 inch TV.

Let’s first try our largest ferrite magnet on it. As you see that it is much smaller and ferrites are around 10 times weaker then neodymium magnets. So we should see a big difference in the effect on the TV. The four-inch ferrite magnet has an effect at around 30 centimeters from the TV. But the six-inch neodymium magnet at around 150 centimeters. And when there at zero distance the difference in strength is very noticeable and gives a quite beautiful show. That will be very cool, if you can watch it by video.

But why does the image react on the magnet?

Here’s the simplified explanation. The image is drawn using electrons that have an electric charge and therefore react in a magnetic field. A transformer delivers high voltage to a vacuum tube and this electron gun that emits electrons. The electrons coming out of the electron gun are focused to a beam using coils that are basically electromagnets. The coils can also guide the beam from side to side and up and down and in this way draw the image. But the electrons will also follow a strong external magnetic field. This almost looks like a screensaver – although it is doing anything but saving the screen. Flat screens don’t use electron beams so they are not affected in the same way. We did, however, manage to dim the background light on this LCD TV. Alright, this is the final fight.

We recommend at least two meters distance between this big magnet and

a computer but here we are at 1 meter. The monitor is reacting to the magnet but no instant death for the computer. Let’s go closer. At 60 centimeters the monitor has messed up but still no dead computer. It may have lost data but the picture We test with is still there.

No more mercy. Let’s try at 8 centimeters. This is dangerous. Not only for the computer. The monitor is throwing up all over the place. The computer is still working…

In order to avoid destroying ourselves, we wouldn’t go closer than four centimeters which is painful enough…After adjusting the screen we opened the picture again. But the picture folder seemed to be gone? And then, the result is it is dead. Later, the mouse pointer froze and we realized that the computer was dying. We killed it.

We have officially killed a computer with our 6-inch neodymium magnet.

And then something happens. Without any error message, the computer had restarted.  After an error message about time and date not set we pressed F1 to boot and all we got were a blinking cursor and plinking hard drive. We hope maybe it would help if we removed the magnet.  But the poor thing is the disk controller failure. That’s too bad. Later we tried to restart it again and received different errors. It never recovered.

The conclusion of this post is that neodymium magnets must be kept away from things you don’t want to destroy. But you can have a large neodymium magnet in your home without blowing all the electronics into your backyard.

At two meters distance from even the 6-inch magnet. The Earth’s magnetic field is the strongest so just keep a distance.

Guideline of purchasing magnet

4 Guideline in Neodymium Magnet Purchasing

This post about shows you how to handle large neodymium magnets safely and sometimes test their power just for the fun of it… we were often asked what neodymium magnet would be good for a beginner who would like to try the power of neo-magnets but has no experience with their power. In this post, we will try to answer this question based on our experience as the best Customize NdFeB Magnet Manufacturer. We don’t believe there is such a thing as a perfect beginner magnet that will suit you all. But we will set up some guidelines for what beginner should look for.

Guideline of purchasing magnet

Don’t buy big neodymium magnet

Well, neodymium magnets are simply, and the most powerful permanent magnets ever invented. Only electromagnets can be stronger so if you have had fun with weak ferrite magnets you’ll most likely love neodymium magnets. However great power comes with great responsibility. A large neodymium magnet is dangerous. The big ones can easily crush the bones in your fingers beyond repair. Ya, beyond repair, in another word means that the bone will be crushed to be small pieces. So you should pay attention to the large neodymium. That does not a toy. For that reason, the most important thing to consider when you want to buy a neo-magnet is “size”. Do not buy a large one as your first time. Practice with smaller magnets and scale up as you gain experience. Large neo-magnets are powerful and expensive. So buying one as a beginner is like taking your driving license in a Ferrari. It could be fun but will most likely quickly end up being very expensive and bloody.

The size of magnet

So how big is large in this context? It may be smaller than you think. This is a 20 mm cubed neodymium magnet. It doesn’t look scary but this is more than enough to give you a nasty bite. In the past post, we showed how this magnet can lift over 20 kg. Imagine having skin pinched between the magnet and a solid metal bar. A 20 mm cube will easily give you blood blisters or even bite skin off. It will however not break your fingers but this magnet is the largest we can recommend for a beginner. If you’re not a responsible adult or don’t like the pain you should start smaller. This magnet is more controllable but still large enough to do some weight lifting. A typical fridge magnet will not lift 8 kg. So to sum up about size: buy smaller than you think and train yourself before going large.

2nd Guideline of purchasing magnet

The Shape of magnet

The next guideline is about the shape of a nice beginner magnet. There are a lot of shapes to choose. But we are only gonna show you the most common. Stay away from the more specialized shapes not shown. A beginner magnet should be simple, cheap, easily available and easy to handle safely. Here’s a common sphere magnet This is not recommended for a beginner. They are more difficult to produce than common shapes, so that is why their price is more expensive.

tiny dot on magnet

The poles are just tiny dots on the surface so they don’t have impressive lifting force. There’s simply not much magnet touching the material you want it to stick to. This also makes them self-destructive. There’s a lot of force on a tiny area on the poles so the coating will over time crack or wear off. The magnet will then corrode rather fast so sphere magnets need special handling and storage.

Not the easiest shape to handle. So how about a square magnet? It’s better since it has large pole surfaces that are easy to spot with the naked eye. However, it has sharp corners that will bite you hard if your skin is trapped. This one is also very thin. we don’t like thin magnets since all neodymium magnets are brittle. They look, feel and even sound very solid – like metal – but they are not! The shiny metal coating is very thin and only there to prevent corrosion. The magnetic material inside the magnet is a crystalline structure comparable to ceramic – like a dinner plate – so neo-magnets will easily break, chip or even shatter if they are not handled carefully. We always treat them like they were made of glass and never let thin or large magnets fly together or you could have sharp shrapnel flying around…

Here we have two disc magnets of roughly the same volume but we would prefer the thick magnet to the left. It is mechanically stronger and less prone to break in half. In practice, it will also feel magnetically stronger on small objects like a paperclip because there’s more magnet under each point on the pole surface. Okay, so a cube magnet would be a nice starter magnet? No… we do love cube magnets. They are our personal favorites but they are not nice beginner magnets. They still have sharp corners that bite hard and you can’t tell where the poles are with the naked eye. This can get you into trouble. Here are two cube magnets put together.

And then let’s see what happens when we try to turn them around. Here it is in slow motion. Notice how close we was to getting our skin pinched. It happens way faster than we can react. The problem was that they were not put together pole to pole like shown here with the south pole marked with blue. They were instead put together side to side like shown here. This should not be twisted but the magnets come unmarked from the factory so a beginner may mess it up. Not pleasant with 20 mm cubes like these. Therefore our recommendation goes to the disc magnet as the best shape for a beginner. No sharp corners, poles are easy to spot and it is a very common shape with a lot of sizes to choose from. Perfect!

The grade of magnet

Next up is the grade of the magnet. we have written a post about the magnet grade so we are not going  to go into details about that. But all you need to know is: the higher number in grade the stronger the magnet. The higher grades are more expensive but since a beginner should look for a small magnet. we will recommend a medium to high grade. In smaller magnets, a higher grade does not add much to the price.

3rd Guideline of purchasing magnet

The coating of magnet

The last guideline is about coating and this is the least important. The standard for neodymium magnets is a triple-layer coating of nickel-copper-nickel. This is good for a beginner magnet. There are other more advanced options but you don’t need them and other coatings limit the selection of magnets and often add to the price. For example, you can find some with the fourth layer of gold. It looks great but it doesn’t make the magnet perform any better. So no need to go for the more specialized coatings. Alright, that was our guidelines for choosing your first magnet.

4th Guideline of purchasing magnet.png

Where to buy magnet

But where can these magnets be bought? we haven’t heard of a dedicated shop where you can walk in and pick up a selection of neodymium magnets off the shelves. It would also be a nightmare to handle. we did however find a few neodymium magnets for sale in a physical shop in the section with whiteboards but these offers are generally of low grades N35 or so to keep them as cheap as possible. They can be an easy and fast solution if you just want to give neo-magnets a try but if you want a large selection and some strong grades you should search for dedicated web shops. But then you run into another problem. The shipping is expensive for a single magnet. They need to ship it as a package. They can’t just ship it in an envelope because it may get stuck to something before arriving at your place. And web shops have a minimum value that you have to order. They simply lose money if your order is only a single 50 cent magnet they have to spend time on handling and shipping. Fair enough. So for a beginner, we can recommend a sample selection of magnets which some web shops offer. Here are the best sets we found so far. Unlike other sample sets, I’ve seen these don’t just come randomly stacked in bubble wrap but in boxes with foam inserts. we really like this organized solution. This is the set with tiny magnets. A great collection but too small if you are aiming for a lot of power.

The medium set is more powerful and may be the best choice for most. But for the same price, you can get the set with larger magnets. This set includes some nice disc magnets and is highly recommended – just be careful when removing the magnets. They are packed a little closer and may attract each other if you’re not aware when lifting a magnet out of the foam. Pull the magnet straight up and away from the other magnets. Oh! By the way… This set is called the macho set and it is not for beginners.

Hopefully, this will all help you into the world of neodymium magnets without too much pain. Feel free to ask questions if you’re still in doubt.

what is magnet grade

What Are Grades of Magnets?

When shopping for neodymium magnets you will meet a term called ‘grade’ which is typically shown as a capital N followed by a two digit number and maybe some extra letters. Look like, N45, N52, 38EH,40UH,30SH,33M, 33H. But what are grades of magnets?

what does grade mean?

OK, Let’s explain it to you. About the grade, it is a measurement of how strong the magnetic material used in the magnet is. People like to call it how concentrated the magnet is because a magnet’s total strength depends on much more factors than just the grade. But if you have two magnets with the same size and shape. And one is grade N45 and the other is N52, the grade N52 magnet will be the strongest since it is more concentrated.

The N stands for Neo which is short for neodymium and tells us that this is, of course, a magnet of the neodymium type. There are generally four types of magnets commercially available but we will focus on neodymium magnets and compare them a little with the ferrite magnets, which are the most common. The number after the N stands for maximum energy product in MGOe. It is really complicated for some people – and we think of it as the maximum strength of the magnetic material. And then, there one question. Does the N45 magnet is a neodymium magnet with an energy product of 45 MegaGaussOersteds?

maximum energy factors of magnetic force of differen grade NdFeB magnet magnet type comparison

The answer is Not necessarily. Neo magnets are made of a crystalline structure that is impossible to make perfect every time in all of the magnets at an atomic level. So no two magnets are exactly the same. Just like that no same leaf in the world. The industry has therefore accepted a range for each grade. The final energy product for an N45 magnet is between 43-45 MGOe. In the high-grade N52 – where the limit of mass production seems to be at the moment – it is even harder to achieve perfection. Especially in larger magnets. So if you just want to by a big size customize 100% N52 Neodymium in big quantity, the price will be very high. And hard to find the supplier. Most of the time, the range is sometimes 49-52 or even 48-53.

the power of different grade

Check the seller’s specifications. These ranges for each grade also makes it very hard to predict how a similar sized N52 magnet is stronger over an N45 magnet. It isn’t just 16% but could be at least anything between 11-21%. In practice, it can be even lower. A practical rule of thumb is 1% more pull-force for every extra MGOe. That is 7% more strength in an N52 over the similar sized and shaped N45 magnet. In fact, they are both very strong.

ferrite and neodymium magnet compare

Compare with other magnets

Let us just compare their strength with the ferrite magnets. That is most of the people are familiar with the fridge magnets. Let’s say that the ferrite magnet is equal to the strength of a beer. How strong is a neodymium magnet then? Well, we think it’s more like vodka. You can get work done with ferrite magnets – like beer will get you drunk. You just need a lot bigger volume compared to neodymium magnets and vodka. By the way: Do not drink while handling large neodymium magnets. They can crush you beyond repair.  ok – let’s just test all this theory with a real life measurement. Using a small steel bracket and a fish weight scale we will test how much pull-force it takes before the magnet gives up. Hmm… the ferrite magnet gave up before we really got started. Now I’ll battle the neodymium magnet. Now that’s what we call a magnet. Given that this was a crude ghetto- style test and the ferrite magnet used was 50% thicker, we think it is fair to conclude that as a rule of thumb neodymium magnets are on average ten times stronger than ferrite magnets. So the conservative rule of thumb for comparing neodymium grades can’t be used when comparing neodymium and ferrite magnets. They are simply in different leagues.

rule of thumb

Extra Letter on the grade

Finally, let us explain the extra letters that sometimes are at the end of the grading. These are codes for how well the magnet withstands high temperatures. The standard neodymium magnets with grades without letters after the number can generally withstand temperatures up to 80°C. If heated above this they will lose some of their magnetic strength even after being cooled down again. And we can call this anti-magnetic(demagnetize). And our N38SH magnet can withstand up to 150°C. The disadvantages of these high-temperature magnets are their lower strength and often higher price. To make a neodymium magnet more heat resistant the perfect formula for the crystals: 2 atoms of neodymium, 14 atoms of iron and 1 atom of boron is thinned out by other elements. For example, some of the neodymium can be replaced by dysprosium or praseodymium and some of the iron can be replaced by cobalt. If you want to know more about size against grade you can visit our website.

temperature of different magnet

 

N52 Pulling Magnet

Why so hard to find N52 magnet manufactory

N52 Magnet, lots of people hear his name, and someone just confuses that is there really exist? And why it is hard to find N52 NdFeB magnet manufactory.

The N52 NdFeB neodymium-iron-boron magnet material is indeed existent, and there are indeed technologies that can produce such high-performance materials. However, the materials available on the market, and better than N48 and N50, it is the best in N grade. So N52 is the normal circulation material on the market. But was rarely used in the market.N52 Pulling Magnet

 

And why it is so rarely on the market? Let ‘s introduce to you.

At first, we should know what does N stand for? As you know, if we divided the magnet according to the temperature, there are many grades, like N grade, M grade, H grade, SH Grade and so on.  And the N grade means that the magnet will demagnetize if the temperature over 80 degrees.

  1. Highest Magnetic

The N52 grade NdFeB magnet has the highest magnetic in N grade. So we can know that the surface Gauss of N52 5*5 is more Gaussian than the surface of N45 5*5. In the testing, if we take 3 magnet, same shape same size but different grade, and we will found that, the N52 neodymium magnet is stronger 14% stronger than the N45 neodymium magnet and 60% stronger than an N35 neodymium magnet.  In normal, N45 magnet will be a good choice for lots of production solution.

N52 does not a good choice, because magnetic is too big, not too many customer need so big magnetic magnets.

N52 Magnet

  1. Expensive

Compare with other grade magnets, the N52 grade is expensive. In normal, the material of N52 almost 10USD/KG higher than other grades magnet. Maybe you are wondering why the material is so high. That’s because N52 is not easy to produce. It needs a special formula to produce. In China, even lots of countries, not too company know how to produce it. But Osenc did it. In fact, Lots of customer from other countries buy N52 from us.

  1. Hard to product

NdFeB magnets are as hard to find as antiques, and they are limited by the sintering technology of modern NdFeB magnets, and Japan’s Sintering technology is indeed able to sinter to produce materials that are truly compatible with N52 NdFeB magnets. Normally, the N35 NdFeB magnet material has a F64*54*35. Under normal circumstances, the magnetization direction of the NdFeB magnet material will not exceed the length and width of the material, because if the material is magnetized Once the direction is higher than the length and width of the material blank, the orientation of the magnetization of the magnetic molecules cannot be agreed.

n52 NdFeB Magnet

In other words, magnets cannot be magnetized, so high-performance N52 neodymium-iron-boron magnets are used in production. The technical difficulty in the process and sintering process is more difficult than the production of the N35 material. So not too many manufactories can offer customer N52 Magnet.

how to ship NdFeB magnet

How to pack the magnet?

If you buy a magnet from the online store. Shipping will be a problem. Because magnet is fragile and with magnetic. So we should be careful to ship the magnet.
Some people say NdFeB magnet is metal, so that is not fragile, and then no need to worry them will be broken. In fact, we should know that NdFeB is not metal, it just magnet but was plated with some metal, like Nickel, Zinc, Gold.
So it is fragile. In fact, NdFeB magnet is very fragile in all magnet.
So, we would like to show you how the seller ship the 6-inch neodymium magnet. Some people will ask why we choose 6-inch magnet because people do not use a 6-inch magnet in daily. The answer is 6-inch magnet has big magnetic power. It will help you know the packing is very important.
If you want the magnet was delivered in good condition, packing is the point.
OK, let s start to introduce you the packing.
In normal, we ship the magnet with a box which is 4 times or 5 times big. Maybe you will be wondering why we pack the magnet with so big box, the answer will let you know when you finished reading.

Unfold the box, the first layer is Styrofoam and then a thin sheet of iron and another Styrofoam below. The Styrofoam in order to protect the sheet of iron. In fact, there is 6 pieces thin iron sheet in the box, in order shield or redirect the magnetic field from the magnet. So the magnet will not affect other parcel and then the magnet will easy to ship by air.

Below the Styrofoam, there are many pieces of plywood, it protect magnet but it can’t be compressed like the Styrofoam. And then it is another layer Styrofoam. And when you finish digging through many layers of Styrofoam and plywood, you can find the magnet wrapped in plastic and paper. When delivered it came in vacuum packed plastic and paper wrapping.

That is all material we used to pack the magnet. So now you can understand why the box is 4 times or 5 times bigger than the magnet. Even that is bigger, but it still has magnetic, so you still need to claim the parcel is a magnet. So the express will pay attention to that. They will ship it more carefully and dispatch with other product which was easily affected by magnetic.

As you see that the knife was attached to the box(magnet inside).

The metal box was attached to the box (magnet inside).

Neodymium 6.5-Inch Loud Speaker

Are neodymium magnets only used in small speakers?

Many people say that neodymium magnets are only used on headphones or small speaker, and that is rarely used on large-sized speakers. They cited several reasons. Let us check is it really?

  1. The neodymium iron boron magnet is not high temperature resistant, and the H grade magnets (commonly used in most of the product) will start demagnetized beyond 120 degrees Celsius. More than 300 degrees Celsius, completely demagnetized. Neodymium magnets demagnetize due to high temperatures. For high-powered loudspeakers, it is difficult to avoid overheating. But if we Install some heatsinks, it will increase the weight and volume, and then the transportation costs will be increased too. The cost is also not as good as ferrites.
  2. Heavyweight and high transportation costs. As we all know, neodymium magnets are magnetic and small in size. But why do many people still say that they have a large weight and high transportation costs? That’s because many people think that when the big high-power speaker works, it will over-heated, in order to avoid demagnetize, the speaker needs a fan or other cooling accessory to make the lama cool down. In this case, the fan will make the heavy-duty speaker heavier.  For a single loudspeaker that has a weight of more than 100kg, if the weight is heavier, it will further increase transportation costs.
  3. High price. Compared to other kinds of magnets, the price of neodymium magnets is indeed higher. This will make the product difficult to sell. Alnico magnets are relatively inexpensive. So manufactory doesn’t use neodymium magnet on large-size speaker.

The above three reasons are the reasons why everyone thinks that large speakers do not use neodymium magnets in large size speaker. But are these reasons really true?

The answer is false. That s not true.

In fact, there are many big brand speakers in the market that already use neodymium magnets. For example, Faital Pro‘s 18-inch bass speaker use neodymium magnet; top manufacturer German BMS, 18-inch 1200W AES power speaker. Because these are top speakers, so there are not too many consumers know that, but the HiFi big fans know it. Now let us explain these three reasons for you.

  1. large-size speaker, especially the air flow in the low-noise body, is also very strong and can play a certain role in heat dissipation. Meanwhile, there are lots of manufacturers through a special design to further reduce the temperature of the speaker.
  2. The only consideration for using neodymium magnets is weight and volume. After all, large speakers are often moved, and logistics costs are a factor to be considered. In fact, many brands of speakers don’t need additional equipment for the cooling. But the speaker can effectively reduce the temperature. And protect the speaker well, no need to worry about the over-heating.
  3.   3.About the cost, in fact, the cost is actually not within the factory’s consideration. Because of the relative price of large speakers and the savings in logistics costs, the price of Neodymium magnets is only a small problem. And we can ignore it.
Neodymium magnet gas stealer

Gas Water Stealer Neodymium Magnet

During these days, we found a very interesting thing on the Internet. Someone use Neodymium magnet to stop the gas calculator running. So we can call the magnet is a stealer.
There were people selling gas stealers on the street in Dongguan. If we place the small magnet on the gas calculator and then the calculator stop running. At present, Dongguan Gas Company has taken note of this newly emerged tactic of stealing, but there is no effective way to stop this.


Neodymium Magnets stop the calculator running

At 9:00 a.m. yesterday morning, we saw a man and a woman standing two or three meters apart in front of a large number of stalls near the No. 300 Road in Dongguan. The man held a shining metal block in his hand and leaned on when a pedestrian passed by. What whispered, the woman slapped a black leather bag and looked forward. “This is a powerful Neodymium magnet. When you place it on the gas calculator, it will not run.” As we passed, a man show us the metal block in his hands and said that the magnets were very magnetic. And the power of this magnets is stronger than hundreds of magnets which were hold on the speaker. At this time, the woman also got together and opened the black leather bag and said: “I just had a patron calling me. He used to buy a piece. He thought it would be good to use it. Now he still wants it.” There are four or five Neodymium magnets wrapped in paper. The man offered a price of 80 yuan and said nothing would be cheaper. “If you buy it tomorrow, it’s not 80 yuan. The asking price is 130 yuan and the minimum is 90 yuan. Can you buy it?” In order to verify the effect, we bought a magnet and both of them (sellers) told us how to use it. Afterwards, we found a civil gas meter and tried to place the magnet in the designated position according to the “guidance” and then opened the hot water valve. we saw the water heater ringing loudly. Within a moment, the water flowed out of the faucet, and the figures on the gas meter did not move. And if the magnet was removed from the gas meter and the gas calculator resumed working.

And we make another test with the water calculator again. And it works again. Yes, we mean the magnet stop the water calculator running again.


The problem has been found to be difficult to investigate and solve

Ms. Cao, Marketing Management Division of Dongguan Gas Management Office, told us that this magnet-gas stealer is a new method of stealing gas in recent years, and every gas company has noticed this situation. According to her introduction, at the end of last year, the Dongguan Gas Company’s Security Services Department had discovered a number of gas thefts on large-scale inspections of gas users in the district. Some of these users used magnets to force the gas meter to stop. Gas companies seem to be helpless in how to investigate this kind of hacking. Jiang Chunhai, manager of the Gas Safety Service Department, said that although the gas company has increased its crackdown on illegal activities in order to protect the interests of users, the gas company has no enforcement power in selling the stolen gas equipment. It is difficult to eradicate the occurrence of illegal events from the source.

Customized Magnets vs Traditional Magnets

4 Major Different Customized Magnets vs Traditional Magnets

What we talk about customized magnet and the traditional magnet is the magnet in the daily, not the industrial magnet.

When magnets were first introduced they came in certain shapes and sizes according to their strengths, weaknesses, and uses. These were the traditional magnets i.e. bar magnets, horseshoe etc. which were used for different tasks in our everyday lives. With the change in technology, new things were discovered such as custom magnets i.e. magnets that are personally made. In this article we will talk about both the custom made and the traditional magnets by discussing the differences:

  1. Goals: There is always an aim or a goal for creating something and thus when these magnets were made they had a goal.
  • Customised Magnet: When an object is customized it is generally created for an occasion or an event and is done with an idea in mind. It is designed and then created accordingly with proper sync with everything else i.e. the material or colors
  • Traditional Magnet: Traditional magnets are made almost every day with the same ingredients and for the same task they are used for years now. The goals for these magnets remain constant and don’t change according to requirement.
  1. Household Works: In our everyday lives we need magnets in many operations and their tools. Now, for the different magnets different works are specialized:
  • Customised Magnet: These are used for sticking up items on your fridge or using them as a beautiful paperweight. They can be also used for gifting someone during a festive season. You can also create these to make the number or nameplates for your house.
  • Traditional Magnet: These magnets are generally used in equipment or tools for household works and not decoration. These are very strong magnets with a constant concentration of magnetic fields and thus they can be used everywhere.
  1. Quality: While you are comparing these two types of magnets, one very big difference between the both is about the quality.
  • Customised Magnet: The customized magnets are made from the scratch by keeping in mind the various needs of the customer. Now, the customer is shown all the samples and then a final product is created so the quality can be decided by them within their budget.
  • Traditional Magnet: The quality of a traditional magnet is pre-decided. No one is going to re-calculate the composition for changing the quality; it was made with a purpose in mind. So, the quality of the traditional magnets remains constant over the time but get better when the material is changed or upgraded.
  1. Strength: Similar to qualify the strength of these magnets completely depends on what it is made of:
  • Customised Magnet: The strength of these magnets are generally on the lower side since they are made mostly for promotional or decoration purposes.
  • Traditional Magnet: In this case, the strength of the magnet is everything since they are mainly used for tools, equipment, and other harder jobs. The composition maintains the strength of the magnet by checking the magnetic fields and if they are produced properly.

These are some of the major comparisons between these two magnets. One can always choose the one preferred for their job by looking at these points. Remember nothing can be measured with naked eyes so always check when you are purchasing.

NdFeB magnets with small hole

What are a magnet and its functions?

A magnet is an object that possesses a magnetic field. For easy understanding, these are objects with north and South Pole. A magnet consists of electrons which have uneven orbits and have uneven spin. These magnetic atoms, in turn, align to fir straight lines to create the magnetic field. The direction of the alignment also follows a regular pattern. The very basic understanding we have of magnets is that the opposites poles attract to one other and the similar poles repel one another. This is dependent on the field that is created by the magnetically charged atoms present in the magnet.

The poles of the magnet

As we’re talking about magnets, it is impossible to overlook the poles of the magnets. Even in its grandeur, Earth forms a magnetic field that has its own north and south pole. The North Pole and South Pole of Earth are indeed real magnetic poles. This can be better understood with a compass. A compass pin always points north as it is attracted to the Earth’s magnetic field.

  • Likeness is repelled

The north pole of a magnet repels the north pole of another magnet. One magnet pushes away the other. Similarly, a south pole of one magnet repels the south pole of another magnet.

  • Opposites face attraction

This is the situation where the magnetic field can be seen working. A north pole of a magnet attracts the south pole of another magnet.

 Common functions of a magnet

  • Electrical to mechanical use of a magnet: This includes the process where the magnet is used to change the electrical energy into motion.
  • Mechanical to electrical use of magnet: This is the process through which the mechanical energy can be successfully converted into electrical energy.
  • Mechanical to mechanical use of magnet: this is the basic function of any magnet that involves repulsion and attraction.
  • Mechanical to heat function of a magnet: the process where the motion is converted into thermal power, a magnetic field is used for this purposes.
  • Special effects: This is an interesting function of magnets where they are used for their significant nature. The science can be implied on various special effects scope to transform energy into creativity.

Common function areas of magnets

  • Industrial usage

Magnets are used in various industries starting from the electrical power. The electric generators that include a magnetic field help to transform the mechanical energy into electricity. The motors have a magnet in them for making the electricity fit for mechanical work.

  • Medicinal Purposes

For various health tests, the magnetic field is used in the instruments. One such example is the MRI machines which use magnetic fields in turn to generate radio signals in our body which creates clear pictorial understanding.

  • Electronics

Electronics like computers use the magnetic fields which help in reading the data. Magnetic fields are in play for the turning the electronic signals to what we hear the sound vibration.

Apart from being useful like this, the magnets play an important role in our day to day activities starting from the vacuum cleaner to your refrigerator. We are surrounded by one giant magnetic field which is intriguing in itself.