Arc Magnets For Motors

Neodymium Magnets 03/31/2020

arc magnets for motors

Arc Magnets - Motor magnets

OD: 1mm - 19.9mm | 20mm - 24.9mm | 25mm - 34.9mm | 35mm - 44.9mm | 45mm - 89.9mm+

Top Quality Rare Earth Neodymium Arc Magnets are typically used in permanent magnet motors, generators and torque couplings.

However, these may be found with sensors and holding applications.

View our tables of magnet materials to see what grade works best with your application.

If you require a specific size that is not available on our website, please contact us or use our online custom magnet quote form.

Ceramic Motor Arc Magnets

Magnets for Industry & Industrial Sourcing

Ceramic Motor Arc Magnets are commonly used in motors, alternators, generators and many other types of permanent magnet motors.

Ceramic motor magnets are made either by pressing a ceramic magnet into shape or by grinding a curved shape from a solid block.

Magnets Used In Motor Applications

Magnets and assemblies from ALB Magnetic Products can be found in many types of motors, generators, and actuators.

Rare Earth magnets (Samarium Cobalt and Neodymium), or ferrite (ceramic) magnets can be used in magnetic motor and vehicle magnet applications.

Rare Earth magnets are typically two to three times stronger than ferrite or ceramic permanent magnets.

In electric motors, that results in greater performance from smaller, lighter motors.

However, rare earth magnets are also more expensive than ferrite (ceramic) options.

Samarium Cobalt Magnets used in Magnetic Motor Applications

Samarium Cobalt (SmCo) magnets are optimal for high-temperature motor applications due to their high magnetic strength, exceptional temperature resistance, and reliable performance without oxidation protection.

Corrosion Resistance: SmCo magnets offer outstanding corrosion resistance (neodymium magnets do not).

Plating or surface coatings are not necessary for most applications, making them advantageous for medical applications as well.

Temperature Stability: A Samarium Cobalt magnet can withstand higher temperatures than a Neodymium magnet.

The maximum operating temperatures for Samarium Cobalt magnets are between 250 and 550 °C;

Curie temperatures range from 700 to 800 °C.

Neodymium Magnets used in Magnetic Motor Applications

Neodymium magnets are also used in electric car motor applications.

From the motor that spins a DVD disc to the wheels of a hybrid car, neodymium magnets are used throughout the vehicle.

The decision between Samarium Cobalt or Neodymium as a vehicle magnet is usually based on either operating temperature and/or corrosion resistance.

Operating temperature: A low coercivity grade Neodymium magnet may begin to lose strength if heated above 176°F (80°C).

High coercivity grade Neodymium Magnets have been developed to function at temperatures up to 428°F (220°C) with little irreversible loss.

The need for the low-temperature coefficient in neodymium magnet applications has triggered several grades to be developed to meet specific operating requirements.

Please refer to our chart of magnetic properties to compare the characteristics of each grade.

Corrosion: Neodymium magnets are vulnerable to corrosion, especially along the grain boundaries of a sintered magnet.

This type of corrosion can cause serious deterioration, including the crumbling of a magnet into a powder of small magnetic particles.

This vulnerability is addressed by adding a protective coating to prevent exposure to the atmosphere.

Nickel plating or two-layered copper-nickel plating are the standard methods, although plating with other metals or polymer and lacquer protective coatings are also available.

Ferrite or Ceramic Magnets used in Magnetic Motor Applications

Although they offer low energy compared to rare earth magnets, ferrite magnets have won wide acceptance due to their strong resistance to demagnetization, exceptional corrosion resistance and low price.

It is the most common magnet used in most types of DC electric motors.

Operating temperature: Maximum operating temperature for a ceramic magnet is 250°C.

Although you will experience magnetic losses when operating at elevated temperatures, the losses are recovered when the material is brought down to normal ambient temperature.

However, operating in very cold temperatures (-20°C) can result in permanent losses of magnetic strength unless the circuit has been designed for such extremes.

Corrosion: Ceramic magnets offer good corrosion resistance and generally do not require a coating or plating.

For Students - How Magnet Motors Work:

An electromagnetic coil is attracted to a permanent magnet within the magnetic motor assembly, and this attraction is what causes the motor to rotate.

When the source of electrical power is removed, the wire loses its magnetic qualities and the motor stops.

Motor Magnets Supplier

Laminated Type Magnet for Axial-Flux Motors and Generators, Excellent cooling performance LAMINATED NdFeB MAGNET ASSEMBLY, horizontal segmentation Laminated rare earth magnets FOR AXIAL FLUX PM MOTORS, Custom High power density Lamination Permanent Magnet China Supplier Laminated Type Magnet for Axial-Flux Motors and Generators Part No.

Laminated Type Axial Flux Motor Magnet, High Corrosion Resistance LAMINATED MAGNET ASSEMBLY, Laminated magnets FOR PERMANENT MAGNET AXIAL FLUX MOTORS, Custom Design brushless AC motors High Power Lamination Permanent Magnet Laminated Type Axial Flux Motor Magnet Part No.

Axial Flux Motor Laminated Magnets, High Corrosion Resistance(long life) Auto Motor Laminated magnets, Custom Design High Power Lamination Permanent Magnet, Lower Magnetic Eddy Current Loss Segmentation Axial Flux Motor Laminated Magnets Part No.

BLDC Motor NdFeB Radially Magnetized Ring Magnet N48H, Black Epoxy Plating NdFeB Motor Magnet Radial Ring, Brushless motor Multipolars ring magnets, High Temp.

regular Neo tube magnets China Factor BLDC Motor NdFeB Radially Magnetized Ring Magnet N48H Parameter: Size: OD 36mm * ID 28mm * H 30mm by Custom Drawing Material: Neodymium (Nd2Fe14B) Magnet Grade: N52

N38SH Black Epoxy Plating NdFeB Motor Magnet Radial Ring

N38SH Black Epoxy Plating NdFeB Motor Magnet Radial Ring, BLDC Motor Nd2Fe14B Radially Magnetized Ring Magnet, Brushless motor Strong Custom Made Multipole ring magnets, High corrosion resistance regular NdFeb magnets China Factor N38SH Black Epoxy Plating NdFeB Motor Magnet Radial Ring Parameter: Size: OD 14.5mm * ID 5mm * H 20mm by Custom

Sintered NdFeB Radial Ring Magnet For BLDC Motor, Stock Nd2Fe14B Magnet, Radially Magnetized Ring Strong Magnets by Custom Design Drawing, custom made ring magnets in BLDC Motors China Manufacturer Sintered NdFeB Radial Ring Magnet For BLDC Motor Parameter: Size: OD 9.9mm * ID 5mm * H 15mm by Custom Drawing Material: Neodymium (Nd2Fe14B) Magnet Grade: N50

Alnico Multipole Magnets, Alnico Magnetic Rotor Assemblies, Motor Multipole Alnico Rotor Permanent Magnets, alnico 5 rotor cast alnico magnet for holding and magnetic motors, Custom Alnico Assemblies Supplier Alnico Multipole magnets are designed with multiple poles;

each pole alternates in polarity.

The hole in the rotor is designed for mounting onto shafts.

They are excellent for use in synchronous motors.

Multipole Radial Ring Neodymium Magnets, Multipole Radial Magnetization Magnet, Customized Radial Magnetic Ring Magnet, Radially Oriented Ring Magnet, Multipolar Radial Ring Permanent NdFeB Magnet Ring Multipole Radial Ring Neodymium Magnets – Sintered rare earth magnet: Radially oriented ring magnet usually refers to a sintered magnet.

The sintered rare earth magnets can be divided into NdFeB

Multipole Radial Magnetization Magnet, ISO9001 TS16949 Customized Radial Magnetic Ring Magnet, Radially Oriented Ring Magnet, Multipole Radial Ring Permanent Neodymium Magnet Multipole Radial Magnetization Magnet The radially oriented ring magnet means that the magnetization direction of the ring magnet is in a radial pattern through the radial direction.

N42 NdFeB Arc Segment Magnets for VCM Motors, N42 Arc Permanent Neodymium Magnets for Linear DC Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA), Diametrically Magnet Sintered Neodymium Iron Boron China Supplier N42 NdFeB Arc Segment Magnets for VCM Motors Specifications (1″=25.4mm;1lbs=0.453kg) Materials: NdFeB, Grade N42 (can be customized)

Segment Shaped VCM N42SH NdFeB Magnet

Segment Shaped VCM N42SH NdFeB Magnet for USA Customer, Arc Neodymium Permanent N42SH Nd Magnets, Linear DC Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA) Permanent Magnet, VCM Hard Disc Magnet China Supplier Segment Shaped VCM N42SH NdFeB Magnet Specifications (1″=25.4mm; 1lbs=0.453kg) Materials: NdFeB, Grade N42SH Dimensions(mm): OR24.00xIR14.50x120degreexT1.10mm, as shown Unite Wt.: 4.9gram

Rare Earth Powerful Magnet Block N48 for Kazakhstan Customer, high performance sintered neodymium block magnets, DC motor Wind Turbine Generator NdFeB Magnet, Motion (Motors and Solenoids) Neodymium Magnet, N48 Strong Permanent Magnet for Brushless Motors China Suppliers Rare Earth Powerful Magnet Block N48 for Kazakhstan Customer Specifications (1″=25.4mm;1lbs=0.453kg) Materials: NdFeB Grade N48

Strip Block Neodymium Permanent Motion Motor Magnet N45 for New Zealand Customer, DC motor Wind Turbine Generator Magnet， Motion (Motors and Solenoids) Neodymium Magnet, N45 Nd Magnets, BLDC Slotted Motor Permanent Magnet for motion industry China Manufacturers Strip Block Neodymium Permanent Motion Motor Magnet N45 Specifications (1″=25.4mm;1lbs=0.453kg) Materials: NdFeB Grade N45

Zinc Coated Neodymium Square Wind Power Motor Magnet N42 for Germany Customer, Wind Turbine Generator Magnet Block Neodymium Permanent Magnet, N42 Nd Magnets, BLDC Slotted Motor surgical motors Permanent Magnet for Wind Power industry China Manufacturers Zinc Coated Neodymium Square Wind Power Motor Magnet N42 Specifications (1″=25.4mm;

1lbs=0.453kg) Materials: NdFeB Grade N42

Segment Rare Earth Magnets for Brushless Motors UK Customer, Generator Rotor Magnet Arc Neodymium Permanent Magnet Motor N50M Nd Magnets, BLDC Slotted Motor surgical motors Permanent Magnet China Manufacturers Segment Rare Earth Magnets for Brushless Motors UK Customer Specifications (1″=25.4mm; 1lbs=0.453kg) Materials: NdFeB Grade N50M Dimensions(mm): Custom Plating: Nickel-plated Magnetizing: Magnetized in pair

Generator Rotor Magnet Arc Neodymium Permanent N50SH, Rotor Permanent Magnet Motor Manufacturers Rare Earth Magnet Suppliers, Neodymium Magnets UK Natural Magnets for Permanent magnet motor Generator Rotor Magnet Arc Neodymium Permanent N50SH Specifications (1″=25.4mm;1lbs=0.453kg) Materials: NdFeB Grade N50SH Dimensions(mm): R11.75xr8.05xW22.5xL31.4xH9 mm Plating: Nickel-plated Magnetizing: Magnetized in pair, half with N on the outer side face

Powerful Segment Rare Earth Neodymium Magnets ROHS Certification

Powerful Segment Rare Earth Neodymium Magnets ROHS Certification for Motor Generator, Super Strong Curved Arc Neodymium Magnets, Thickness Magnetized N48 Sintering NdFeB Tile Magnet, DC Motor Synchronous Servo Motor Magnets China Factory Powerful Segment Rare Earth Neodymium Magnets ROHS Certification features: 1.Grades: N30-N52, 35M-48M, 33H-42H, 35SH-45SH, 30UH-40UH, 28EH-38EH.

Magnet N-( N35, N38, N40, N42)

Thickness Magnetized Segment Sintered Rare Earth NdFeB Magnets for Motor Generator

Thickness Magnetized Segment Sintered Rare Earth NdFeB Magnets for Motor Generator, Curved Neodymium Magnets for Vibration Motor, Thickness Magnetized N50 Sintering NdFeB Tile Magnet, DC Motor Synchronous Servo Motor Magnets China Factory Thickness Magnetized Segment Sintered Rare Earth NdFeB Magnets for Motor Generator features: 1.

Grades: N30-N52, 35M-48M, 33H-42H, 35SH-45SH, 30UH-40UH, 28EH-38EH.

Super Strong Arc Tile Shaped Vibration Motor Magnets, Curved Neodymium Magnets for Vibration Motor, Thickness Magnetized N50 segment neodymium magnets for Motor Windmill Generator, Sintered Rare Earth NdFeB Curve Magnet, DC Motor Magnets China Factory Super Strong Arc Tile Shaped Vibration Motor Magnets features: Grade N35-N52;

N35M-N50M;

N35H-N48H, N35SH-N45SH;

N30UH-N40UH, N30EH-N38EH Size Accept custom size

Rare Earth Curved Neodymium Magnets for Vibration Motor, Super Strong N50 segment shaped neodymium magnets for Motor Windmill Generator, Sintered Rare Earth NdFeB Curve Magnet, Vibration Motor Rotor Magnets China Factory Rare Earth Curved Neodymium Magnets for Vibration Motor features: High accuracy Strong magnetic force High intrinsic ,coercive force Material:Sintered Neodymium-Iron-Boron Magnetization

Neodymium Arc & Wedge Rare Earth Magnets

Super Strong Rare Earth Neodymium Arc & Wedge Magnets

Better performance than 2x1x1/2" magnets 22.5-degree wedge magnets 16 magnets form 8" OD x 4" ID x 1/4" ring High-performance wind generator magnets Grade N42 magnets Magnetized through-thickness.

Price Range: $9.15 - $9.99

22.5-degree wedge magnet.

16 magnets form 8" OD x 4" ID x 1/2" ring N42 wind generator magnet Magnetized through-thickness.

Price Range: $15.75 - $16.99

Strong 22.5 degree Wedge Magnet N42 16 magnets form 12" OD x 6" ID x 1/2 Ring Magnetized through-thickness.

Price Range: $26.55 - $28.99

Strong 22.5 degree Wedge Magnet N42 Magnetized through-thickness.

Price Range: $24.89 - $30.99

N42SH High Temp DC motor magnets High performance Magnetized through the diameter.

Price Range: $3.59 - $3.99

N42SH 90 degrees DC motors magnets Magnetized through the diameter.

Price Range: $5.45 - $5.99

45-degree curve - High Temp DC Motor Magnets Magnetized through the diameter.

Price Range: $5.65 - $7.59

ALB Magnets offers the strongest magnets and neodymium magnets for sale at factory-direct prices.

We are a magnet wholesaler and retailer so when you buy from us you really are buying direct.

Through the sales volume we have built up over the years, we can offer you the highest quality magnets at the lowest prices.

Do not be fooled by our low prices on magnets and wind turbines.

These are factory direct prices.

We are committed to offering excellent performing, high-quality strong neodymium magnets & industrial magnets, flexible magnetic materials, ceramic magnetic materials, SmCo Samarium Cobalt magnetic materials, and AlNiCo magnetic materials.

MAGNETS ARE NOT TOYS! FOR ADULT USE ONLY!

To comply with 16 CFR Part 1240 - SAFETY STANDARD FOR MAGNET SETS

Our magnets are not intended for use with or as a magnet set.

A magnet set is defined as any aggregation of separable magnetic objects that is a consumer product intended, marketed or commonly used as a manipulative or construction items for entertainment, such as puzzle working, sculpture building, mental stimulation, or stress relief.

ALB Magnets is the #1 leading wholesaler of permanent rare earth industrial magnets, ferrite ceramic magnets, magnetic assemblies, magnet tools made with neodymium rare earth magnets, effective magnetic water treatment system made with the most powerful neodymium rare earth magnets and magnetic accessories and Magnetic Levitation Science Projects.

We distribute industrial neo-neodymium-iron-boron NdFeB rare earth magnets, cup magnets, samarium cobalt rare earth industrial magnets SmCo, ferrite (ceramic) magnets, magnetic strips, magnet wire, Magnetic Levitation & Magnetic Levitating Train Kits and magnetic tools.

This is a great new gadget we are carrying!

Works with all types of magnets!

How does it identify the north and south poles of a permanent magnet?

Simply press and hold the black oval button. Then, place the tip of the detector near the surface of the magnet.

If it is the North Pole, the Red LED will glow.

Magnet Pole Detector - Identifier-North

If it’s the South Pole, the Green LED will glow.

It’s just that simple.

And if the button is held and the unit is moved around the surface of the magnet….you can see the transition from one pole to another.

This pole identifier is guaranteed to be 100% accurate.

It can be used for NdFeB, SmCo, AlNiCo, Ceramic and most other magnets and refrigerator/flexible magnets.

Neodymium Arc Magnets for Motor

Max. Working Temperature: 80ºC - 220ºC

Annual Production: 1000 Tons / Year

Price: The more quantity, the better price

Main Application: Motor, Generator, Wind Turbine, etc.

Transportation: According to clients’ requirements

Arc magnets can be seen as a part of ring magnets or disc magnets.

Sometimes arc magnets are called segment magnets.

Neodymium arc magnets are mostly used in electronic machines, types of equipment, permanent magnet motors, generators, rotors, stators, couplings, wind turbines, and other applications.

These products will generate a lot of heat and energy in high speed running.

So the built-in arc magnets have to withstand high temperature in operating.

ALB Rare Earth Magnet Limited is specialized in manufacturing a variety of arc magnets applied in different applications.

We have advanced production technology, rich production experience and professional engineering technicians in this field.

Please just feel free to send us an inquiry if you are looking for neodymium arc magnets, segment magnets, motor magnets or related magnets.

Here is a template of an inquiry of neodymium arc magnets for reference.

Neodymium Arc Magnets- Rare Earth arc Magnets Supplier

Neodymium Arc Segment Magnets

These magnetic arc segments can be assembled together in iron housing to provide a magnetic field for electromagnetic motors. 2'' OD x 1.75'' ID x 1'' thick

Neodymium Magnets 1.5'' OD x 1.25'' ID x 0.75'' thick

Neodymium Magnets 1'' OD x 0.75'' ID x 0.75'' thick

Neodymium Magnets 14'' OD x 8'' ID x 1'' thick

Neodymium Magnets 12'' OD x 6'' ID x 0.5'' thick

Neodymium Magnets 8'' OD x 4'' ID x 1/4'' thick

Neodymium Magnets 2'' o.r. x 1'' i.r. x 1'' x 30

Neodymium Magnets 1 1/8'' o.r. x 1'' i.r. x 3/4'' x 45

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