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Electromagnets

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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 [...]

What Is Electromagnetic Lock and How It Works?

What Is Electromagnetic Lock and How It Works? What Is Electromagnetic Lock? An electromagnetic lock, magnetic lock, or maglock, is a locking device that consists of an electromagnet and an armature plate. It is a magnet that is created when an electrical current is passed through a solenoid (coiled wire wrapped around a metal core). [...]

An Efficient and Optimal Moving Magnet Actuator for Active Vibration Control

An Efficient and Optimal Moving Magnet Actuator for Active Vibration Control Abstract: The need for fuel economy and emission restriction has led OEMs to put emphasis on different strategies which allow effective improvements in that field (engine downsizing, cylinder deactivation …). These new applications imply significant vibration increase, created by the engine and transmitted to [...]

ELECTROMAGNETS / ELECTRIC HOLDING MAGNETS (EM)

ELECTROMAGNETS / ELECTRIC HOLDING MAGNETS (EM) Electromagnets or electric holding magnets develop their high attraction force towards magnetic materials when they are energized. The applications are manifold - wherever ferrous parts have to be fixed during processing or assembly, or ferrous parts have to be attracted or transported. However, electromagnets are most commonly used as [...]

Electro Holding Magnet – Things You Need to Know

Electro Holding Magnet – Things You Need to Know What Is A Holding Electromagnet? Holding electromagnets are used to attract and hold ferromagnetic pieces. The maximum force efficiency is achieved with the piece to be hold above the attraction’s face and in direct contact with both poles (outside pole and inside pole). How Does A [...]

Electromagnetic Transmissions Solenoids Holding Magnets

Electromagnetic Transmissions Solenoids Holding Magnets Solenoids for simple operation Single-acting solenoids are for common applications. The magnetic field delivered by the coil upon power-up attracts the core. Then, the nucleus becomes free again in the absence of current. They are thus available in different designs, folded sheet, square profiled, machined in the mass. Solenoids for [...]

Energise to Hold Electromagnets

Energise to Hold Electromagnets / standard Electromagnets / Solenoid/Electromagnet Electrical current is required to turn the magnet ON. Power is removed to turn the magnet OFF. Pull force conversion (approximate): 1kg = 10N = 2.2lb. The outer shell of the electro magnet is a sturdy bright nickel plated cylinder, passivated with body mounting. Designed for [...]

TECHNICAL EXPLANATIONS FOR ELECTROMAGNETIC HOLDING MAGNETS

TECHNICAL EXPLANATIONS FOR ELECTROMAGNETIC HOLDING MAGNETS Our products conform to the production standard DIN VDE0580 and are RoHS-compliant. TYPES OF HOLDING MAGNET Electromagnetic holding magnets: The ferromagnetic part is held in place on the holding magnet’s attraction surface when power is supplied to the coil. When the holding magnet is not powered, the electromagnetic force [...]

Selecting the Right Electromagnet

Selecting the Right Electromagnet There are many variables that must be considered in the selection of a proper magnet. To help you get the best magnet for your application, we should have the following information: Surface of the Work Is it scaly, rough, flat, machined or of irregular shape? Size of the Work Give thickness, [...]

Solenoids

Electromagnet or solenoid are general terms for all types of electromagnetic actuators. Basically, electromagnets or solenoids are devices that generate a magnetic field by means of an energized coil, guiding it through suitable iron parts with air gap. Here, magnetic poles are created inbetween which a magnetic force of attraction, the magnetic force, prevails. If [...]

Electromagnetic Radiation Definition

Electromagnetic Radiation Definition Electromagnetic radiation is self-sustaining energy with electric and magnetic field components. Electromagnetic radiation is commonly referred to as "light", EM, EMR, or electromagnetic waves. The waves propagate through a vacuum at the speed of light. The oscillations of the electric and magnetic field components are perpendicular to each other and to the [...]

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