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Electromagnets

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President Biden has decided not to restrict imports of ndfeb magnets

President Biden has decided not to restrict imports of ndfeb magnets. The US "Political News Network" said that the neodymium magnets imported by the United States mainly come from China, and Biden's decision avoided a new trade war between the United States and China and other economies. According to a report by the "Political News [...]

Oxygen from the moon! China has achieved breakthrough results

Oxygen from the moon! China has achieved breakthrough results If one day we could actually live on the moon, what would be the most important thing? Yes, it is oxygen. "Produce the first mouthful of oxygen for the Chinese on the moon as soon as possible", this is the mouth of Guo Linli, a researcher [...]

Study finds magnets could solve oxygen supply problems for astronauts during long-term space travel

Study finds magnets could solve oxygen supply problems for astronauts during long-term space travel A team of experts from the University of Warwick has demonstrated a new method for producing oxygen in microgravity conditions that involves magnets. Magnets are used to attract gas bubbles to condense in an area, making it easier to harvest them [...]

The world’s strongest magnet will be shipped to France to assemble an “artificial sun”

The world's strongest magnet will be shipped to France to assemble an "artificial sun" that can suck aircraft carriers off the ground The International Thermonuclear Experimental Reactor (ITER) project said recently that the world's strongest magnet has been manufactured for ten years and is ready to be shipped to France to assemble an "artificial sun" [...]

Can magnetic lock without keyhole cry a thief? A magnet can be easily cracked

Can magnetic lock without keyhole cry a thief? A magnet can be easily cracked A magnetic lock without a keyhole claims to make it impossible for thieves to start, and can only be opened by attaching a matching, magnetic key to the lock body. Recently, this lock with a unique appearance and a tall name [...]

Up to 75% depend on China! U.S. no longer restricts imports of neodymium magnets

Up to 75% depend on China! U.S. no longer restricts imports of neodymium magnets On September 21, the United States announced that it would no longer restrict the import of neodymium magnets. Neodymium magnets are rare earth materials commonly used in commercial and military applications. According to a report, as the application of such magnets [...]

Giant Magnetoresistance

Giant Magnetoresistance Have you ever sat around on a rainy day contemplating your computer’s hard disk drive? Though often taken for granted, this magnetized device makes it possible to store and retrieve information digitally – in everything from video games to iPods to your personal computer. The first hard disk drives (HDDs) date back to [...]

Permanent Magnets: A Study in Sticktoitiveness

Permanent Magnets: A Study in Sticktoitiveness There are two basic kinds of magnets  permanent and temporary. We'll take on permanent first  which is appropriate, because before humans could invent and exploit temporary magnets, they had to discover the permanent kind first. People first happened upon magnets sometime before 600 BC with the discovery of the [...]

Hybrid Magnets: Best of Both Worlds

Hybrid Magnets: Best of Both Worlds Unlike most of the math that goes on at the Magnet Lab, the equation you need to make a more powerful continuous field magnet is pretty easy. Take a very powerful superconducting magnet  say, 11.5 tesla  and a very powerful resistive magnet  say, 33.5 tesla  and put them together. [...]

Electromagnets: Two Forces Team Up

Electromagnets: Two Forces Team Up Resistive electromagnets, another type of temporary magnet, combine the powers of electricity and of magnetism to enormous effect. Although superconducting electromagnets, which we'll discuss soon, offer many advantages, certain laws of physics prevent them from reaching the field strengths electromagnets are capable of. Some of the world's most powerful resistive [...]

The Strong Thin Magnets in Smart Devices

The Strong Thin Magnets in Smart Devices Byline: Brief overview of considerations for permanent magnets in electronics Current technological updates have made devices become increasingly thin, which has put pressure on each industry involved to create components that utilize as little volume as possible. This poses a lot of challenges in magnetics due to manufacturing [...]

Do Microphones Need Magnetism To Work Properly?

Do Microphones Need Magnetism To Work Properly? Magnets and microphones play huge roles in our everyday lives. You may have read somewhere that magnets play a central role in microphones. Is this true? Do Microphones Need Magnetism To Work Properly? Dynamic mics (moving-coil and ribbon) convert energy via electromagnetic induction and have built-in magnets around [...]

Why & How Do Headphones Use Magnets?

Why & How Do Headphones Use Magnets? 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 energy [...]

Magnets In Loudspeaker Drivers

Magnets In Loudspeaker Drivers Magnets In Moving-Iron Loudspeaker Drivers The moving-iron loudspeaker was the first effective electromagnetic loudspeaker design. Today, the design is pretty well relegated to balanced armature headphone drivers, but this driver type is still worth mentioning. Let’s have a look at the balanced armature headphone driver design to explain the magnets of [...]

Why And How Do Speakers Use Magnets & Electromagnetism?

Why And How Do Speakers Use Magnets & Electromagnetism? Magnetic material and magnetic fields surround us in our day-to-day lives, from the refrigerator magnets to the Earth’s magnetic field to the speakers in our homes, on the stage, in our cars, etc. Why and how do speakers use magnets? Speakers are transducers of energy that [...]

Big Magnets Make For Better Loudspeakers

Big Magnets Make For Better Loudspeakers Everybody who listens to audio, whether music, podcasts, movies or other media, depends on speakers. From standalone loudspeakers and monitors to headphones and earphones to built-in laptop and cell phone speakers, it’s clear that speakers vary significantly in size. With most speakers being electromagnetic, it begs the question: do [...]

Loudspeaker, Headsets, Woofer Magnets

Loudspeaker, Headsets, Woofer Magnets A loudspeaker is an electroacoustic transducer which converts an electrical audio signal into a corresponding sound. Magnets are widely used for loudspeaker/headsets/woofer , it included AlNICO , NdFEB and Ferrite magnets and so on. Typical speaker NdFeB magnets for Loudspeaker/headsets/Woofer : D5*1.2mm D4.25*1.5mm D6.5*2.0*1.5mm D9.5*1mm 8.9*1.8*0.8mm D12.5x2mm D9.9x3.2x1mm D9.9x3.2x2mm Block3.2x2.2x1mm Typical [...]

What are holding magnets?

What are holding magnets? Holding Magnets / Holding Solenoids Electro-holding magnets (holding magnets) remain able to be magnetised. Workpieces in position due to magnetically created forces. Pieces that are unable to be magnetised are able to be held on a magnetisable armature plate. The specific design of the magnetic circuit maximises the holding force for [...]

Safe and Effective Use of Electromagnetic Equipment

Safe and Effective Use of Electromagnetic Equipment The usefulness of electromagnetic equipment cannot be denied. Employed in everything from massive construction cranes to the doorbell in your house, electromagnets use a simple on/off function to perform complex tasks every day. In the process of magnetic separation, electromagnets or permanent magnets are used to extract sources [...]

Battery Powered Electro Permanent Magnets

Battery Powered Electro Permanent Magnets BATTERY POWERED - NO POWER SUPPLY CABLE NEEDED ELECTRO PERMANENT LIFTING MAGNETS WITH BATTERY SUPPLY For safe lifting of flat and round workpieces. Equipped with AUTO function for fast unloading of cutting machines. Control via built-in digital push buttons or via the supplied radio remote control. BATTERY POWERED ELECTRO PERMANENT [...]

Electro Permanent Magnetic Chucks for Workholding

Electro Permanent Magnetic Chucks for Workholding ELECTRO PERMANENT MAGNETIC CHUCKS FOR LATHES Tension-free clamping of rings and precision mechanical parts, with the possibility of finishing the inner surface, outer surface and head surface in one set-up. The Series electro permanent magnetic Chucks are designed with circular electro permanent magnets, using the unique variable pole cross-section [...]

ELECTRO PERMANENT MAGNETS FOR AUTOMATION

ELECTRO PERMANENT MAGNETS FOR AUTOMATION A magnetic gripper is a transmission device that can clamp ferromagnetic charges by a strong electro permanent magnet. The “double magnet” technology uses the electric current only during the magnetising and demagnetising phase. The effective force is generated by permanent magnets. In the event of a power failure, the workpiece [...]

Electro Lifting Magnets for Thin Steel Sheets

Electro Lifting Magnets for Thin Steel Sheets SIMPLE OPERATION Depending on the thickness of the steel strip, the force during the PICK-UP phase can be set via a 4-position switch. This ensures that only one steel strip is picked up. Once the sheet is loose from the stack, it immediately switches to FULLMAG = 100% [...]

Magnetic Gripper Transferring 200-300kg

Magnetic Gripper Transferring 200-300kg Below is another application of customized magnetic gripper, on pick and place robot, transferring 200-300kg irregular steel workpieces in industrial automation. Magnet model; steel parts to be gripped and transferred: 200-300kg irregular workpieces in different shapes. Special designed contact face: two round con-caves on the magnet surface, for a seamless grip [...]

Applications of Electro Permanent Magnet Grippers in Robotics

Applications of Electro Permanent Magnet Grippers in Robotics Here, we did a simple summary of the applications of HSMAG’s electro permanent magnet grippers in robotics, to help you gain a direct view of this magnetic end effector in industrial automation. Magnets For Industrial Automation Magnetic gripper is a transfer device that can instantly catch magnetic [...]

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