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

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 magnet
Brushless motor magnet
Servo motor magnet
Stepper motor magnet
Linear motor magnet
PM motor magnet
Irregular motor magnet
Automobile motor magnet /Car motor magnet
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.

Custom Design Ferrite Rotor Magnets

Custom Design Ferrite Rotor Magnets

Custom Design Ferrite Rotor Magnets, Customized Size Ceramic Rotor Motor Magnets, Powerful Sintered Ferrite Magnet, Hard Ferrite Arc Tile Magnets, Sintered Ferrite Generator Magnets, Ceramic Segment Permanent Magnets China Factory Custom Design Ferrite Rotor Magnets Features: Part No.: HS-FAM Material: Ferrite / Ceramic Shape: ARC, SEGMENT As the request of clients Specification: 1.Low cost, High […]

Customized Size Ceramic Motor Magnets

Customized Size Ceramic Motor Magnets

Customized Size Ceramic Motor Magnets, Powerful Arc Sintered Ferrite Magnet, Hard Ferrite Tile Magnets, Sintered Ferrite Generator Magnets, Ceramic Segment Permanent Magnets, Electric Motor Rotor Ceramic Magnets China Factory Customized Size Ceramic Motor Magnets Features: Part No.: HS-FAM Material: Ferrite / Ceramic Shape: ARC, SEGMENT As the request of clients Specification: 1.Low cost, High working […]

Segment Hard Ferrite Motor Magnets

Segment Hard Ferrite Motor Magnets

Segment Hard Ferrite Motor Magnets, Powerful Arc Sintered Ferrite Magnet, Hard Ferrite Tile Magnets, Sintered Ferrite Generator Magnets, Customized Size Ceramic Segment Permanent Magnets, Electric Motor Rotor Ceramic Magnets China Factory Segment Hard Ferrite Motor Magnets Features: Part No.: HS-FAM Material: Ferrite / Ceramic Shape: ARC, SEGMENT As the request of clients Specification: 1.Low cost, […]

Powerful Arc Sintered Ferrite Magnet

Powerful Arc Sintered Ferrite Magnet

Powerful Arc Sintered Ferrite Magnet, Motor Hard Ferrite Tile Magnets, Sintered Ferrite Generator Magnets, Customized Size Ceramic Segment Permanent Magnets, Electric Motor Rotor Ceramic Magnets China Factory Powerful Arc Sintered Ferrite Magnet Features: Part No.: HS-FAM Material: Ferrite / Ceramic Shape: ARC, SEGMENT As the request of clients Specification: 1.Low cost, High working temperature with […]

Ferrite Tile Magnets

Motor Hard Ferrite Tile Magnets

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Hard Ferrite Generator Magnets

Hard Ferrite Generator Magnets

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Ceramic Segment Permanent Magnets

Ceramic Segment Permanent Magnets

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Electric Motor Rotor Ceramic Magnets

Electric Motor Rotor Ceramic Magnets

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High Strength Ceramic Segment Magnets

High Strength Ceramic Segment Magnets

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Ceramic Arc Magnets

Hard Ceramic Arc Magnets

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Magnets Ferrite Arc

Motor Permanent Magnets Ferrite Arc

Motor Permanent Magnets Ferrite Arc, Arc Segment Ferrite Magnet for Motors, Sintered Ferrite Arc Segment Tile shape Magnets, High Strength Small Y30BH Segment Ferrite Magnet Electric Motor Magnets China Factory Motor Permanent Magnets Ferrite Arc Features: Part No.: HS-FAM Material: Ferrite / Ceramic Shape: ARC, SEGMENT As the request of clients Specification: 1.Low cost, High […]

Segment Shaped Hard Ferrite Magnet

Segment Shaped Hard Ferrite Magnet

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SmCo Cylindrical Magnet

SmCo Cylindrical Magnet

SmCo Cylindrical Magnet, SmCo Rod Magnet, Buy Strong SmCo Cylindrical Magnets, Sintered Samarium Cobalt Magnetic Bars and Rods, Rare Earth Samarium Cobalt SmCo5 Sm2C017 Cylinder Permanent Magnet Supplier Samarium Cobalt SmCo Cylindrical Magnet Samarium Cobalt (SmCo) Disc and Rod Magnets are extremely good performers. Standard SmCo has a maximum operating temperature of up to +300 °C. […]

SmCo Ring Magnet

SmCo Ring Magnet

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SmCo Arc Magnet

SmCo Arc Magnet

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SmCo Square Magnet

SmCo Square Magnet

SmCo Square Magnet, Buy Plate SmCo Magnets, Square Flat Samarium Cobalt Rectangle Magnets, SmCo5 Sm2C017 Rare Earth Samarium Cobalt Block Sheet Permanent Magnet Supplier Samarium Cobalt Block SmCo Square Magnet High Temp SmCo Samarium Cobalt Magnet Blocks 572F Maximum Operating Temperature Block SmCo Magnets Samarium cobalt magnet is mainly formed by the metal samarium, cobalt and […]

SmCo Rectangular Magnet

SmCo Rectangular Magnet

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Isotropic Bonded SmCo Magnets

Isotropic Bonded SmCo Magnets

Isotropic Bonded SmCo Magnets, Compression Bonded SmCo, Injection Molded SmCo, Polymer Bonded SmCo Magnets, Plastic Bonded Samarium Cobalt Magnets, Isotropic SmCo5 /  Sm2Co17 Bond Permanent Magnet China Supplier Isotropic Bonded SmCo Magnets Feature: Part No.: BSMPC-06 Type: Permanent Composite: Samarium Cobalt Magnet (SmCo5 /  Sm2Co17 Magnet) Size: Custom Application: Motors, Devices, Printers, Sensors, CD/DVD ROM […]

Anisotropic Bonded SmCo

Anisotropic Bonded SmCo

Anisotropic Bonded SmCo, Compression Bonded SmCo, Injection Molded SmCo, Polymer Bonded SmCo Magnets, Plastic Bonded Samarium Cobalt Magnets, Anisotropic SmCo5 /  Sm2Co17 Bond Permanent Magnet China Supplier Anisotropic Bonded SmCo Feature: Part No.: BSMPC-05 Type: Permanent Composite: Samarium Cobalt Magnet (SmCo5 /  Sm2Co17 Magnet) Size: Custom Application: Motors, Devices, Printers, Sensors, CD/DVD ROM and so […]

Injection Molded SmCo

Injection Molded SmCo

Injection Molded SmCo, Strong Polymer Bonded SmCo Magnets, Injection Molding Bonded Samarium Cobalt Magnets, Anisotropic or Isotropic SmCo5 /  Sm2Co17 Bond Permanent Magnet China Supplier Injection Molded SmCo Magnets Feature: Part No.: BSMPC-04 Type: Permanent Composite: Samarium Cobalt Magnet (SmCo5 /  Sm2Co17 Magnet) Size: Custom Application: Motors, Devices, Printers, Sensors, CD/DVD ROM and so on. Packing: […]