Motor Magnets

Motor Magnets, Motor Permanent Magnets, Magnets for Motor Applications, Permanent Motor Magnets, Permanent Magnets for Motors, Generators, and Actuators Application

Motor Magnets: Magnets and assemblies from HSMAG Magnetech 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.

permanent-magnets-for-motor-applications

Motor Magnets – Magnetic technology for the motor / VCM market delivers the ability to push the limits on miniaturization, efficiency and performance. our customers wish to achieve extreme performance in devices such as a wire bonding machines and missile guidance systems. Our customers challenge us to design motors and actuators with features such as:

High force to mass ratio
High speed moving coil designs
Harsh environment withstand capability
The types of motor using permanent magnet such as :

DC motor magnets
Brushless motor magnets
Servo motor magnets
Stepper motor magnets
Linear motor magnets
PM motor magnets
Irregular motor magnets
Automobile motor magnets /Car motor magnets
High performance actuator and motor design requires the use of materials that push the limits of material science. Magnet material selection is critical and we can assist in the selection of the best material. Tradeoffs in the selection include temperature, residual induction, coercivity and environment.

Sintered NdFeB (arc/segment NdFeB magnet , radial ring sintered NdFeB magnet)
Compression bonded NdFeB magnet
Ferrite (Arc magnet )
Injection magnet

Neodymium Magnets used in Magnetic Motor Applications

Neodymium Magnets used in Magnetic Motor ApplicationsNeodymium 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 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.Ndymium Motor Permanent Magnets for Magnetic Motor Applications

Corrosion: Neodymium magnets are vulnerable to corrosion, especially along grain boundaries of a sintered magnet. This type of corrosion can cause serious deterioration, including 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.

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.Samarium Cobalt Magnets used in Magnetic Motor Applications

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.

Ferrite or Ceramic Magnets used in Magnetic Motor Applications

Ferrite or Ceramic Magnets used in Magnetic Motor ApplicationsAlthough 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.

 

 
 
 
 
 
DC Brush Motor Magnets DC Brushless Motor Magnets Stepper Motor Magnets

Synchronous Motor Magnets

Linear Actuators Magnets
   

 

 
 
 
 
 
Starter Motor Magnets Elevator Motor Magnets Wind Turbine Magnets

Microphone Magnets

Rotor Magnets

 

 
 
 
 
 
Micro Motors Halbach Array Magnets Hard Drive Magnets

Magnetic Motor Assemblies

Vibration Motor Magnets

Speed ​​Motor Magnetic Ring 16-poles Ferrite Radial Magnetization

Speed ​​Motor Magnetic Ring 16-poles Ferrite Radial Magnetization

Speed ​​Motor Magnetic Ring 16-poles Ferrite Radial Magnetization, 16-poles Magnetization Hard Ferrite Ring Multi-pole Magnets, motor rotor permanent magnets, Radially Orientation Multi-pole Ceramic Magnetic Ring, Anisotropic multi-polar magnetic rings in air-conditioning motor rotors and DC brushless motors Speed ​​Motor Magnetic Ring 16-poles Ferrite Radial Magnetization Features: Specification size:  custom design drawing Magnetizing mode: Radial 16 […]

Four Poles Ferrite Radial Magnetization Rotor Magnet

Four Poles Ferrite Radial Magnetization Rotor Magnet

Four Poles Ferrite Radial Magnetization Rotor Magnet, 4-poles Magnetization Hard Ferrite Ring Multi-pole Magnets, motor rotor permanent magnets, Radially Orientation Multi-pole Ceramic Magnetic Ring, Anisotropic multi-polar magnetic rings supplier Four Poles Ferrite Radial Magnetization Rotor Magnet Features: Specification size:  custom design drawing Magnetizing mode: Radial 4 poles Type: Permanent Composition: Sintered Ferrite Magnet (hard ceramic) […]

Sintered Ferrite Planar Multipole Rotor Magnet

Sintered Ferrite Planar Multipole Rotor Magnet

Sintered Ferrite Planar Multipole Rotor Magnet, Planar 12-poles Magnetization Hard Ferrite Ring Multi-pole Magnets, water flowmeter rotor magnet, Radially Orientation Multi-pole Ceramic Magnetic Ring, Anisotropic multi-polar magnetic rings supplier Sintered Ferrite Planar Multipole Rotor Magnet Features: Specification size:  custom design drawing Magnetizing mode: Radial 12 poles Type: Permanent Composition: Sintered Ferrite Magnet (hard ceramic) The […]

Planar Four Magnetization Ferrite Ring Multi-pole Magnets

Planar Four Magnetization Ferrite Ring Multi-pole Magnets

Planar Four Magnetization Ferrite Ring Multi-pole Magnets, Radially Orientation Multi-pole Ceramic Magnetic Ring for Household appliances water pump and pump motor, High performance Planar Radial Magnetization Anisotropic multi-polar magnetic rings supplier Planar Four Magnetization Ferrite Ring Multi-pole Magnets Features: The specifications of this product are 20*10*3 and 980gs. Specification size:  custom design drawing Magnetizing mode: […]

Radial Ferrite 24 poles Motor Encoder Hall Sensor Ring Magnets

Radial Ferrite 24 poles Motor Encoder Hall Sensor Ring Magnets

Radial Ferrite 24 poles Motor Encoder Hall Sensor Ring Magnets, Miniature Motor Hall Encoder Magnetic Ring of Balanced Car Motor, Radially Orientation Multi-pole Ceramic Magnetic Ring for Hall Induction Magnetic Encoder Motor, High performance Radial Magnetization Anisotropic multi-polar magnetic rings supplier Radial Ferrite 24 poles Motor Encoder Hall Sensor Ring Magnets Features: Specification size:  custom […]

Radial Orientation Multi-pole Ceramic Magnetic Ring

Radial Orientation Multi-pole Ceramic Magnetic Ring

Radial Orientation Multi-pole Ceramic Magnetic Ring, Customized Radially Multipole Sintered Ferrite Magnets for air-conditioning motor rotor, Radial Magnetization multi-polar magnetic rings, Multi-Polars Permanent Hard Ferrite Anisotropic Ring Magnet Supplier Radial Orientation Multi-pole Ceramic Magnetic Ring Features: Specification size: OD 30MM * ID 21MM * H 25MM / custom design drawing Magnetizing mode: Radial 16 poles […]

Four-Polars Multipole Ceramic Rings for Motor Magnetic Rotor

Four-Polars Multipole Ceramic Rings for Motor Magnetic Rotor

Four-Polars Multipole Ceramic Rings for Motor Magnetic Rotor, Customized Size Multipole Radial Ring Ferrite Magnets, multipole ceramic rings, Multi-Polars Ceramic Permanent Magnets, Hard Ferrite Isotropic Ring Magnet China Supplier Four-Polars Multipole Ceramic Rings for Motor Magnetic Rotor Features: Specification size: custom design drawing Magnetizing mode: axial 4 pole Type: Permanent Composition: Ferrite Magnet Homogeneous ferrite […]

China Samarium Cobalt Wind Turbine SmCo Magnets

China Samarium Cobalt Wind Turbine SmCo Magnets

China Samarium Cobalt Wind Turbine SmCo Magnets, Synchronous Motor Superior Permanent Magnet, Wind Power Generator Rare Earth SmCo segment arc shape magnets for step skewed rotor of SPM / IPM machine, Strong Sintered SmCo Magnets Supplier China Samarium Cobalt Wind Turbine SmCo Magnets Specifications Dimensions: customized size Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: […]

Breadloaf Segment Shape Magnet Sintered Samarium Cobalt

Breadloaf Segment Shape Magnet Sintered Samarium Cobalt

Breadloaf Segment Shape Magnet Sintered Samarium Cobalt, Synchronous Motor Superior Permanent Magnet, Rare Earth SmCo breadloaf shape magnets for step skewed rotor of SPM / IPM machine, Strong Sintered SmCo Segmented Laminated Magnets Supplier Breadloaf Segment Shape Magnet Sintered Samarium Cobalt Specifications Dimensions: customized size Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: Sm2Co17 Plating/Coating: […]

Bread Loaf Cobalt Samarium Magnet

Bread Loaf Cobalt Samarium Magnet

Bread Loaf Cobalt Samarium Magnet, Synchronous Motor Superior Permanent Magnet, Rare Earth SmCo breadloaf shape magnets for step skewed rotor of SPM / IPM machine, Strong Sintered Samarium Cobalt Segmented Laminated Magnets Supplier Bread Loaf Cobalt Samarium Magnet Specifications Dimensions: customized size Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: Sm2Co17 Plating/Coating: N/A Magnetization Direction: Parallel […]

Rare Earth SmCo Laminated Segmented Magnet

Rare Earth SmCo Laminated Segmented Magnet

Rare Earth SmCo Laminated Segmented Magnet,  Superior Permanent Magnet, Rare Earth SmCo breadloaf shape magnets for rotor, higher operating temperature motor segmentation magnet, Strong Sintered Samarium Cobalt Segmented Laminated Magnets Rare Earth SmCo Laminated Segmented Magnet Specifications Dimensions: customized size Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: Sm2Co17 Plating/Coating: N/A Magnetization Direction: Parallel / […]

Segmented Bread Loaf SmCo Superior Permanent Magnet

Segmented Bread Loaf SmCo Superior Permanent Magnet

Segmented Bread Loaf SmCo Superior Permanent Magnet, Rare Earth SmCo breadloaf shape magnets for wind turbine, higher operating temperature motor magnet, Strong Sintered Samarium Cobalt Segmented Laminated Magnets Segmented Bread Loaf SmCo Superior Permanent Magnet Specifications Dimensions: customized size Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: Sm2Co17 Plating/Coating: N/A Magnetization Direction: Parallel Max Operating […]

Permanent Magnet Generators Breadloaf Shape SmCo Magnet

Permanent Magnet Generators Breadloaf Shape SmCo Magnet

Permanent Magnet Generators Breadloaf Shape SmCo Magnet, superior Permanent Rare Earth SmCo breadloaf shape magnets for wind turbine, Direct Drive PMG higher operating temperature magnet, Strong Sintered Samarium Cobalt Magnet Custom Shape Permanent Magnet Generators Breadloaf Shape SmCo Magnet Specifications Dimensions: customized Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) Material: Sm2Co17 Plating/Coating: N/A Magnetization Direction: […]

Surface Mounted Parallel Magnetized SmCo Bread Loaf Shape Magnet

Surface Mounted Parallel Magnetized SmCo Bread Loaf Shape Magnet

Surface Mounted Parallel Magnetized SmCo Bread Loaf Shape Magnet, 350 Degree High working temperature superior Permanent Rare Earth SmCo breadloaf shape magnets for wind turbine, Direct Drive Permanent Magnet Generators Samarium Cobalt higher operating temperature magnet Surface Mounted Parallel Magnetized SmCo Bread Loaf Shape Magnet Specifications Dimensions: customized Tolerances: ±0.004″ x ±0.002″ (+/-0.1mm x ±0.05mm) […]

Extremely Strong Samarium Cobalt Ring Magnet

Extremely Strong Samarium Cobalt Ring Magnet

Extremely Strong Samarium Cobalt Ring Magnet, High Temperature Resistant SmCo Magnetic Rings, Rare Earth Material Sintered SmCo Magnet, Custom Made SmCo Permanent Magnet for Rotor Motor China Factory Extremely Strong Samarium Cobalt Ring Magnet Feature Certification RoHS, ISO Composite SmCo Magnet Type Sm2Co17 Application Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet Shape Ring […]

High Temperature Resistant SmCo Magnetic Rings

High Temperature Resistant SmCo Magnetic Rings

High Temperature Resistant SmCo Magnetic Rings, Rare Earth Material Samarium-Cobalt Ring Magnet, Custom Made SmCo Permanent Magnet for Rotor Motor, high power energy resistance temperature smco magnets SmCo5 Sm2Co17 China Supplier These SmCo Magnetic Rings belong to the group of particularly coercive magnets with great corrosion conditions. They are often utilized when the magnet needs […]

Rare Earth Material Samarium-Cobalt Generator Magnet

Rare Earth Material Samarium-Cobalt Generator Magnet

Rare Earth Material Samarium-Cobalt Generator Magnet, Custom Made Arc Tile Segment Shapes SmCo Permanent Magnet, high power energy resistance temperature smco magnets SmCo5 Sm2Co17 China Supplier Rare Earth Material Samarium-Cobalt Generator Magnet Feature: Magnet Grade SmCo5,Sm2Co17 Size customized Usage/Application Industrial Use Temperature Up to 350 degree Composite Sintered SmCo Magnet Minimum Order Quantity 10 Piece […]

Expensive Material Cobalt Samarium Magnets

Expensive Material Cobalt Samarium Magnets

Expensive Material Cobalt Samarium Magnets, Tile Shape Rare Earth SmCo Magnets, Custom Made BLDC Motor SmCo Permanent Magnet, high power High energy resistance Sintered magnets China Supplier Expensive Material Cobalt Samarium Magnets Feature: Magnet Grade SmCo5,Sm2Co17 Size customized Usage/Application Industrial Use Temperature Up to 350 degree Composite Sintered SmCo Magnet Minimum Order Quantity 10 Piece SmCo […]

Custom Made SmCo Segment Magnets for AC Synchronous Motor

Custom Made SmCo Segment Magnets for AC Synchronous Motor

Custom Made SmCo Segment Magnets for AC Synchronous Motor, Maximum Operating Temperature Arc SmCo Magnet, Customized Anisotropic SmCo Magnet for PM Motors, sintering SmCo arc permanent magnets China Supplier Custom Made SmCo Segment Magnets for AC Synchronous Motor Feature: Magnet Grade SmCo5,Sm2Co17,Low Temp Coeff Sm2Co17 Size customized Usage/Application Industrial Use Temperature Up to 350 degree […]

Tile Shape Rare Earth Samarium Cobalt Magnets

Tile Shape Rare Earth Samarium Cobalt Magnets

Tile Shape Rare Earth Samarium Cobalt Magnets, Custom Made Synchronous Motor SmCo Permanent Magnet, high power Customized Shapes and magnetization orientations motor magnets, SmCo Anisotropic Magnets China Supplier Tile Shape Rare Earth Samarium Cobalt Magnets Feature: Magnet Grade SmCo5,Sm2Co17 Size customized Usage/Application Industrial Use Temperature Up to 350 degree Composite Sintered SmCo Magnet Minimum Order […]