Neodymium 6.5-Inch Loud Speaker

Are neodymium magnets only used in small speakers?

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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

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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

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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?

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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.

moto magnet

The significance of Magnets in Our Daily Lives

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Magnets are one of those elements that we come across in the daily course of our lives. Needless to mention, that they play a very important role in our lives. Because of their magnetic qualities, magnets are put to various uses by the industries. Like for instance, magnets is used in a variety of devices that we use every day such as computers, MRI machines, toys, credit cards etc. Depending on their magnetic qualities and composition there are three main types of magnets which include Permanent magnets, Temporary Magnets, and Electromagnets. While some of the magnets are visible in the devices that they are used, others are fitted inside the inner workings of the devices. Thus, it can be said that even if you can’t see the magnets they are silently doing their work unseen.

What Is The Importance Of Magnets In Our Daily Lives?

As already mentioned above, magnets are used for a number of purposes some of which we are going to discuss now.

  1. Computer and Electronics: Most of the computers have magnets tucked inside the inner workings which help the computer to store data on its hard to drive. The magnet present inside the device helps alter the direction of the magnetic material on the hard disk in different segments that represent computer data. The computer read the direction of each of the segment of the magnetic material in order to read the data. Apart from this magnets are also found inside small speakers, radios, and televisions all of which forms a daily part of our lives. 
  1. Electric Power and Other Industries: In the industrial sector, magnets are considered to be one of the most important elements that they use. Magnets that are used in electric generators help convert the mechanical energy into electricity and vice versa. When it comes to the recycling part, electromagnets are used to grab large pieces of metal that weigh more than thousands of kilos. Other than that magnets are also used in the mines with the help of which metallic ores are separated from crushed rock. Magnets are also used in the food processing units where it is used to remove small pieces of metals from grains other food items. Thus, you can see how useful magnets are for the industrial sector as well as for us.
  1. Health and Medicine: Magnets are also used in the field of medicine. Equipment such as MRI machines make use of a magnet in order to function. Apart from the medical equipment magnets are also used for treating cancer. A magnetically sensitive fluid is injected into the patient’s body after which a powerful magnet is used to produce heat in the body. The generating heat helps kill the cancer cells without harming any of the organs in the body.
  1. At Home: You may not know or notice it but most of the devices that we use at our home have magnets in them which serve some purpose or the other. For example, refrigerators, vacuum cleaners, credit cards, phones, doorbells etc have magnets in them.

From the above discussion, it is clear that magnets form an integral part of the devices that we use in our daily lives and thus, magnets are important for us humans.

earth magnet

7 Amazing Facts About Magnet, Not Too Many People Know All of Them

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Amazing Facts about Magnet

Magnets can rightly be called the strange elements of nature. Although there is enough information available on magnets, scientists still feel that there are mysteries surrounding magnets that are yet to be solved. Speaking of mysteries, some of them have been already solved by the researchers and the scientists. In this article, we have compiled a list of strange magnetic facts that you may find interesting to read.

Some Of The Amazing Facts About Magnets

Here is your chance to brush up your knowledge a bit on magnets.

  • There are magnets that are so strong that they can turn metals into magnets. However, these magnets are very rarely found. Ferromagnetic materials which include iron can easily be magnetized with the help of such strong magnets. In order to transfer the magnetic qualities into the metal, all you have to do is rub them against each other and you will see that the metal is able to pick up magnetic objects easily.
  • Speaking of magnets, did you know that the Erath is like a big magnetic ball? Earth has two magnetic poles, the north and the south which is why a compass points to that direction. Magnetic poles are however different from that of geographical North and South Pole. There are invisible magnetic lines that run from poles to poles i.e. from north to south.
  • Did you know that there are animals that get affected by magnets? To put it in other words, many animals can sense the magnetic fields and that is why magnets are used to study the migratory cycles, bee communication patterns and many other different behavioral patterns of animals.
  • Magnets are ancient elements of nature. They have existed since the formation of the earth. Chinese are believed to use loadstones for navigation purposes.
  • It is strange but there are magnetic hills in existence that is said to pull large magnetic objects like cars towards them. These magnetic hills are present in certain locations. However, there is a debate going on this that these are not actually magnetic hills but a topographical illusion.
  • Magnetar is the strongest and the most powerful magnet that is found in the universe. Surprisingly, it is a star. When stars die there are supernova explosions and magnetars are the only thing that is left over. These magnetars are powerful enough to even destroy an entire planet if they get closer. According to the scientists, there are only a few of them present in the universe and they are far away from the earth.
  • Magnetic Resonance Imaging machines use magnets in order to produce magnetic fields stronger than that of Earth. To be more precise, the magnetic field produced by these machines are 60,000 times stronger than the magnetic field of the Earth.

After going through the amazing facts about magnets that are listed above, it can be concluded that magnets are truly interesting and also the most strange elements of the earth.

type of magnet

Types of Magnets

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A magnet is among those amazing objects of nature that possess certain special attributes. It is an object that generates or creates a magnetic field that can pull or repel certain types of materials which includes iron and nickel. Because of this special quality, magnets are used for a variety of industrial purposes.  Speaking of magnets they are made of different elements. To put it in other words, not all magnets are made of the same elements. Based on their composition and magnetism properties magnets can be broken down and categorized into three different types. Permanent magnets, Temporary Magnets, and Electromagnets are the three main types of magnets that are available. Each of type has its own special attributes about which are going to discuss in this article. Other than that we are also going to learn about the different types of magnets that fall under the above-mentioned categories.

What Are The Different Types Of Magnets?

As already discussed above there are three main types of magnets that are available. Let’s get into the details of each type of magnets:

  1. Permanent Magnet:

    Permanent magnets are those types of magnets that can retain its magnetic properties once it is been magnetized. Basically, there are four main types of permanent magnets available. 

  • Neodymium Iron Boron (NdFeB):

    This type of magnet is known to have a very high coercive force and is composed of rare earth magnetic material. Even the product range of the magnet is extremely high which is up to 50 MGOe.

  • Samarium Cobalt (SmCo):

    This is the type of magnet that is very hard to demagnetize just like the one mentioned above. This is a very strong magnet with a high resistance power against temperature and oxidation.

  • Alnico:

    The name Alnico is derived from the first two letters of each of the three main elements that it is comprised of and i.e. aluminum, nickel, and Unlike the other two types of magnets that mentioned above, this type of magnet can be easily demagnetized.

  • Ceramic or Ferrite:

    This type of magnet is mainly comprised of sintered iron oxide and strontium carbonate or barium. They are mostly inexpensive and thus, can be easily produced through the process of pressing or sintering.

  1. Temporary Magnets:

    Temporary magnets are those kinds of magnets that behave like permanent magnets as long as they are within the magnetic field but lose their magnetic qualities as soon as they are removed from the magnetic Temporary magnets also vary widely in their composition because of their strange nature.

  1. Electromagnets:

    Electromagnets are mainly wound coils that that act as magnets when electrical current is passed through them. The strength of an electromagnet can be easily altered by just changing the direction and the strength of the electrical current.

So these are the three main types of magnets that are available to us. Depending on their nature these magnets are put to various uses by the industries. Therefore, it wouldn’t be wrong to say that magnets are one of the many useful elements that we get from nature.

hand made rubber magnet

All you need to know about custom rubber magnets

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Custom rubber magnets define their own name i.e. the way they are prepared or fully customized. Now, one needs to understand that traditional magnets differ highly from that of customized magnets in terms of shapes, sizes, uses, and strength. They are prepared for a certain occasion or event or even for business-related causes. For this reason, they are also not as strong as the traditional or industrial magnets since the uses are different in both cases. In this article we will discuss the different features of these magnets and how they can be made:

Custom rubber Magnets:

These are personalized magnets meant for daily household tasks, business stationery, promotional events etc. Now, these magnets come in different sizes for the different needs of people and business activities. The magnets come in forms of logos that symbolize a specific company or come in forms of the fridge magnets for sticking notes. Also, these magnets are used for festive gifts with personalized messages on them. You can get your address or name on the magnets for a door nameplate as well if you prefer that.

Places You Can Get Custom Magnets: These days there are several different resources or options you get while you need to make something. So, in order to get a perfect one you have some options that we will list down below:

• Brick and Mortar: The simplest method of creating these custom magnets would be visiting a shop meant for making these magnets. Then producing your order perfectly is the goal since you have to really specific about the details or the product won’t be up to the mark. You need to remember there are many different shops around from which you need to select the perfect shop. At last, choose the type of magnet carefully and which perfectly suits your budget.

• Online Shops: Everything around us is available online these days because of the high availability and so magnets are nothing different. There are various online thrift stores or general websites that deal with personalized gift making. You can always search for a genuine one that fits your budget to get the best deal for your gift or business related magnet. The benefit of online websites is that they have fixed everything prior to a catalog which helps the customer.

• Do It Yourself: There cannot be a better option if someone decides to make something on their own. You can always personalize magnets after you have purchased them from a shop. You need to select the proper shape of a magnet and weight as well. Next, you have to purchase colors, decorative ribbons and every other thing you might want to decorate your magnet with. You can search online for designs to decorate your magnet. Also if you are hosting a party at your house you can give it a simple touch of yourself or your signs.
These are some of the ways in which you can purchase custom magnets and what these magnets are. Now, you need to remember that purchasing the main magnet very precisely is important.