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Magnetic Field

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Why Do Speakers Have Magnets?

Why Do Speakers Have Magnets? Speakers have magnets because magnets create an opposing magnetic field which results in vibrations which are the sounds we hear. Let’s explain a bit further. As you already know, for speakers to work, they need electric current. This current goes through a coil in the speaker and creates a magnetic [...]

Pros and Cons of Magnetic Filters

Pros and Cons of Magnetic Filters The decision to use magnetic technology in a given application depends on various machine conditions and fluid cleanliness objectives. These include the expected concentration of ferrous particles, type of oil used, operating temperature, surge flow and shock and machine design. Because of the numerous commercial products, configurations and applications, [...]

Neodymium Speaker Magnets Explained

Neodymium Speaker Magnets Explained In this article, you will meet a component that perhaps doesn’t get the exposure that it should – the magnet. While each speaker driver is made up of two magnets – an electromagnet and a natural/permanent magnet – the focus will primarily be on the latter. To reproduce sound through a [...]

Why & How Do Use Magnets in Headphones?

Why & How Do Use Magnets in Headphones? Magnetic materials and magnetic fields are all around us but it may come as a surprise to you that the headphones you’re wearing have magnets, too! Why & How Do Headphones Use Magnets? Headphones act as transducers of energy, converting electrical energy (audio signal) into mechanical wave [...]

What Kind Of Magnets Are Used In Headphone?

What Kind Of Magnets Are Used In Headphone? High-quality dynamic headphones nearly all utilize rare earth Neodymium magnets. Neodymium magnets are the strongest kind of permanent magnet available. They were invented in the 1980s and have since become standard in high-quality audio transducers (speakers, microphones and, of course, headphones). Neodymium magnets are made from an [...]

Where to Find Neodymium Magnets in Household Items

Where to Find Neodymium Magnets in Household Items Its a common question – where to find neodymium magnets in household items? Neodymium magnets are made of neodymium as their name suggests and are the most widely used type of rare-earth permanent magnet. To put their strength into perspective, they can produce magnetic fields with up [...]

HSMAG Supply Custom Neodymium Magnet Service

HSMAG Supply Custom Neodymium Magnet Service The custom neodymium magnet is a very small market in the magnet business,so customer is hard to find a company whom can offer them good custom magnet service. In the magnet business, most of the customer just buy the normal magnet. Most of the time, that is big size [...]

4 Factors Causing Your Magnets to Get Weaker

4 Factors Causing Your Magnets to Get Weaker Get the most value from your investment by avoiding potential magnet-weakening forces. Here's how! Whether you are buying magnets for home, office, hobby, or industrial use, you surely want to protect your new purchase to ensure they last as long as possible and stay as strong as [...]

Magnets Are Still Effective Under Extreme Temperatures

Magnets Are Still Effective Under Extreme Temperatures Want to know if your magnet will function properly under extreme temperatures? Read our blog or give us a call today to find out. Temperature has a variety of effects on magnetic materials Our customers are always curious about the effect temperature has on the magnets they need. [...]

Why Headphones Have Magnets Inside

Why Headphones Have Magnets Inside Music has been around since the beginning of time, but now can be enjoyed in more ways than one ever believed possible. The advancements in headphones have been rapidly increasing from basic over-ear headphones to small, wireless air pods. Purchasing new headphones may lead you to question exactly how these [...]

How Strong are Speaker Magnets

How strong are speaker magnets? Speaker magnet strength ranges from about 0.001 tesla all the way up to about 1.5 tesla (the strongest neodymium magnets). The basic function of speaker magnets is to translate an electrical signal into an audible sound. To achieve this functionality, speaker magnets don’t need to be extremely strong. So why [...]

Geomega recycle USA Rare Earth’s waste

Geomega recycle USA Rare Earth's waste Quebec-based mining technology firm Geomega Resources Inc plans to recycle rare earth-containing production waste produced by critical minerals producer USA Rare Earth. Geomega will recycle the production waste from USA Rare Earth's future production of sintered neodymium iron boron (NdFeB) permanent magnets (sintered neo magnets) in the United States. [...]

UMC Recycle Rare Earth Magnets

UMC Recycle Rare Earth Magnets A Texas-based company recycles neodymium-based magnets to make new ones. Urban Mining Company (UMC), USA, has made a new process for reclaiming magnets containing rare earth metals to produce new, higher performance neodymium iron boron (Nd2Fe14B)-type sintered magnets. The methodology offers a practical way to reuse the minerals that are [...]

Basic Composition and Microstructure of Sintered NdFeB Magnet

Basic Composition and Microstructure of Sintered NdFeB Magnet Sintered neodymium iron boron (NdFeB) magnet or neodymium (Nd) magnet, as its name implies, contains essential rare earth Nd element. Nd atoms, coupling with ferromagnetic element iron (Fe) atoms, help the magnet obtain high remanence (Br) and maximum energy product ((BH)max), which makes it extraordinary compared with [...]

IEC Standard Rare earth-iron-boron (REFeB) Magnets

IEC Standard Rare earth-iron-boron (REFeB) Magnets The International Electrotechnical Commission (IEC) published the standard IEC 60404-8-1:2015 for magnetically hard materials (permanent magnets). In this standard, the part of Rare earth-iron-boron (REFeB) magnets’ magnetic properties and densities is shown in the table below. IEC Standard Rare earth-iron-boron (REFeB) Magnets In the REFeB magnets, the [...]

Recycling Of NdFeB Magnets For Rare Earth Elements (REE) Recovery

Recycling Of NdFeB Magnets For Rare Earth Elements (REE) Recovery ABSTRACT NdFeB magnets currently dominate the magnet market due to their superior magnetic properties with maximum volume minimization. NdFeB magnets are composed of 25-35 wt. % rare earth elements (REE) along with ca. 1 wt. % B and the rest being transition metals (mainly Fe). [...]

What is Maximum Working Temperature of Permanent Magnet?

What is Maximum Working Temperature of Permanent Magnet? Permanent magnets are widely applied in various motors, sensors/instruments and electronics, their temperatures almost vary more or less during work. These temperature variations are resulted from eddy current effect and/or ambient temperature variation. Due to thermal fluctuation and magnetic domain evolution, a permanent magnet loses some or [...]

Temperature Coefficients (α and β) of Permanent Magnets

What are Temperature Coefficients (α and β) of Permanent Magnets? A permanent magnet’s magnetic properties change as a variation of temperature. For a permanent magnet, remanence (Br) and intrinsic coercivity (Hcj or Hci) are two major parameters, it is important to consider their changes with corresponding temperature variation at work. In order to describe the [...]

Magnetic Attachment Wireless Charging

Magnetic Attachment Wireless Charging Apple Inc. launched their iPhone 12 series recently. Magnetic attachment wireless charging and MagSafe accessories attracted the most attention and analysis. Actually, Apple Inc. has been already utilized magnetic attachment wireless charging in their iWatch and Apple Pencil, then also obtained positive market feedback. As a new type of energy transmission [...]

What is the Strongest Commercial Permanent Magnet in the World

What is the Strongest Commercial Permanent Magnet in the World? Researchers and engineers have never stopped their steps to discover and develop novel permanent magnets since 1910s, and several types of permanent magnets had been commercialized and they have been widely used in motion, energy, electronics, medical and other high technologies in our daily life. [...]

Types of Temperature Losses of Magnets

Types of Temperature Losses of Magnets (= loss of magnetisation due to high temperature) Depending on the temperature, we distinguish between three different types of losses: Reversible temperature loss Temperature area: just above the maximum working temperature The magnet is less magnetic as long as it is hot. Once it is cooled down, it regains [...]

What MagSafe Magnet on the iPhone 12 is ?

What MagSafe Magnet on the iPhone 12 is ? how it works, and what can it do MagSafe for iPhone 12 is a multi-faceted feature that enables a whole new ecosystem of accessories. But how does it work and what can it do? What is MagSafe? MagSafe does many things, which makes it hard to [...]

How to Magnetize and Demagnetize a Permanent Magnet

How to Magnetize and Demagnetize a Permanent Magnet Due to random orientation for micro magnetic domains, a permanent magnet usually does not provide any magnetic flux when it is produced. It needs to be magnetized to saturation for use. So how to magnetize a permanent magnet? The basic principle is using a coil, i.e. an [...]

The Differences Between Rare Earth Magnets & Non Rare Earth Magnets

The Differences Between Rare Earth Magnets & Non Rare Earth Magnets Like in most subjects if you learn the terminology you have at least a consumer level knowledge that will get you to the types, shapes & strength magnets you are looking for. Rare Earth Magnets at Magnets For Sale & HS Magnetics Ceramic (non [...]

10 Cool Tricks About Rare Earth Magnets

10 Cool Tricks About Rare Earth Magnets If you've been looking for interesting ways to use earth magnets, you're in luck. There are at least 10 awesome cool tricks that you can do with Rare earth magnets. 10 Cool Tricks About Rare Earth Magnets Extract Batteries: You've probably got at least ten things [...]

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