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

Cylinder Tube SmCo Micro Precision Magnets

Cylinder Tube SmCo Micro Precision Magnets

Cylinder Tube SmCo Micro Precision Magnets, Mini Micro Rare Earth SmCo Ring Magnets, Sintering Samarium Cobalt Miniature Ring Magnets, Precise Micro Mini Magnet, Ring Micro Tiny Permanent Magnets Cylinder Tube SmCo Micro Precision Magnets Parameter Material Sm2Co17 / Sm1Co5 Dimension D 3mm x d 1.6mm x 0.3mm +/-0.0025mm Coating uncoated Magnetized Diametrically Axially Min. order […]

Mini Micro Rare Earth SmCo Ring Magnets

Mini Micro Rare Earth SmCo Ring Magnets

Mini Micro Rare Earth SmCo Ring Magnets, Samarium Cobalt Miniature Ring Magnets, Precise Micro Mini Magnet, Sintered SmCo Ring Micro Magnet, Precision Tiny Permanent Magnets Mini Micro Rare Earth SmCo Ring Magnets Parameter Material Sm2Co17 / Sm1Co5 Dimension D 3mm x d 1.6mm x 0.3mm +/-0.0025mm Coating uncoated Magnetized Diametrically Axially Min. order quantity: 10,000pcs […]

Precise Micro Samarium Cobalt Arc Magnets

Precise Micro Samarium Cobalt Arc Magnets

Precise Micro Samarium Cobalt Arc Magnets, Miniature Motor Magnets, Precise Micro Mini Segment Magnet, Sintered SmCo Micro Arc Magnet, Precision Tiny Magnets, Rare Earth Permanent Magnet China Factory Precise Micro Samarium Cobalt Arc Magnets Parameter Material Sm2Co17 / Sm1Co5 Dimension customized size by drawing +/-0.0025mm Coating uncoated Magnetized Diametrically Axially Min. order quantity: 10,000pcs We […]

Rod Micro Samarium Cobalt Magnets

Rod Micro Samarium Cobalt Magnets

Rod Micro Samarium Cobalt Magnets, Miniature Cylinder Magnets, Precise Micro Mini Rod Magnet, Sm2Co17 Micro Cylindrical Magnet, Precision Tiny SmCo5 Magnets, Rare Earth Permanent Magnet Rod Micro Samarium Cobalt Magnets Parameter Material Sm2Co17 Dimension D 0.5mm x 5mm +/-0.0025mm Coating uncoated Magnetized Diametrically Axially Min. order quantity: 10,000pcs We offer a wide variety of micro […]

Samarium Cobalt Ring Miniature Magnets

Samarium Cobalt Ring Miniature Magnets

Samarium Cobalt Ring Miniature Magnets, Precise Micro Mini Magnet, Sm2Co17 Micro Ring Magnet, Precision Tiny Magnets, Rare Earth Samarium Cobalt Permanent Minuscule Micro Haute Précision Mini Aimant Samarium Cobalt Ring Miniature Magnets Parameter Material Sm2Co17 Dimension OD2.1xID1.6×1.05(a)mm all +/-0.025mm Coating uncoated Magnetized Diametrically Axially Min. order quantity: 1,000pcs HSMAG Magnet defines “MICRO” as extremely small.We […]

Block SmCo Micro Magnets

Block SmCo Micro Magnets

Block SmCo Micro Magnets, Precise Micro Miniature Magnet Solutions, Sm2Co17 Micro Block Magnet Axially Magnetized, Precise Gluing Magnets, Rare Earth Samarium Cobalt Mini Magnet for micro-motor, optical communication electronics Block SmCo Micro Magnets Parameter Material Sm2Co17 Size 2mm x 2mm x 1.5mm Coating uncoated Magnetized Diametrically Axially HSMAG Magnet defines “MICRO” as extremely small.We believe […]

Multipole Radial Ferrite Magnet

Multipole Radial Ferrite Magnet Ring Tube Shaped

Multipole Radial Ferrite Magnet Ring Tube Shaped, Ferrite Anisotropic Multipolar Ring Magnets, Multi-Polar Ceramic Ring, Customized Magnet with Multi-Poles, Hard Ferrite Permanent Magnets for Motor Items Multipole Radial Ferrite Magnet Ring Tube Shaped Ceramic Magnet Material Ferrite magnet is made of Fe2O3 (80%) and Either BaCO3 or SrO3(20%) by Ceramic processing technology. Some additives such as Cobalt […]

Y30 Y35 Ferrite Anisotropic Multipolar Ring Magnets

Y30 Y35 Ferrite Anisotropic Multipolar Ring Magnets

Y30 Y35 Ferrite Anisotropic Multipolar Ring Magnets, Multi-Polar Ceramic Ring, Customized Ferrite Ring Magnet with Multi-Poles, Multipole Radial Ring Haed Ferrite Permanent Magnets, magnetic rings Y30 Y35 Ferrite Anisotropic Multipolar Ring Magnets Features: Type: Permanent Magnetocrystalline Anisotropy: Isotropic Magnet Application: Industrial Magnet, Motor Magnet Shape: Cylinder Ring Coating: No Composition: Ferrite Magnet HangSeng Magnetics now […]

Multi-Polar Ceramic Ring Magnets

Multi-Polar Ceramic Ring Magnets

Multi-Polar Ceramic Ring Magnets, Customized Size Ferrite Ring Magnet with Multi-Poles for Motor or Rotor, Multipoles Radial Ring Ferrite Magnets, magnetic rings,  Y35 Hard Ferrite 4-Poles 6-Poles 10-poles Isotropic Ring Magnet Multi-Polar Ceramic Ring Magnets Features: Type: Permanent Magnetocrystalline Anisotropy: Isotropic Magnet Application: Industrial Magnet, Motor Magnet Shape: Cylinder Ring Coating: No Composition: Ferrite Magnet […]

Customized Size Ferrite Ring Magnet with Multi-Poles for Motor

Customized Size Ferrite Ring Magnet with Multi-Poles for Motor

Customized Size Ferrite Ring Magnet with Multi-Poles for Motor, Multipole Radial Ring Ferrite Magnets, multipole magnetic rings, Multi-Polars Ceramic Rings, Hard Ferrite Four-Poles Six-Poles Isotropic Ring Magnet Customized Size Ferrite Ring Magnet with Multi-Poles for Motor Features: Type: Permanent Magnetocrystalline Anisotropy: Isotropic Magnet Application: Industrial Magnet, Motor Magnet Shape: Cylinder Ring Coating: No Composition: Ferrite […]

N45H NdFeB Arc Segment Hollow-Shaft Encoder Magnet

N45H NdFeB Arc Segment Hollow-Shaft Encoder Magnet

N45H NdFeB Arc Segment Hollow-Shaft Encoder Magnet, Arc Permanent Magnet for Rotary Encoders, NdFeB Arc Segment OR15xIR2x90deg.x16mm, Reliable Hollow-Shaft Encoder Rare Earth NdFeB Magnets N45H NdFeB Arc Segment Hollow-Shaft Encoder Magnet Specifications(1″=25.4mm; 1lbs=0.453kg) Part No.: HSREM-OR15xIR2x90deg.x16-N45H Materials: NdFeB, grade N45H Dimensions(mm): OR15.00*IR2.00*90deg.*16.00mm, as shown Unite Wt.: 20.4gram Plating: NiCuNi plated Magnetizing: Manetized in pairs, half […]

N42H Strong Neodymium Arc Permanent Magnet for Rotary Encoders

N42H Strong Neodymium Arc Permanent Magnet for Rotary Encoders

N42H Strong Neodymium Arc Permanent Magnet for Rotary Encoders, NdFeB Arc Segment OR39.5xIR35.5xL40xW26mm, High Torque Powerful Arc Encoder Rotary Magnets Sale for Encoder Manufacturer N42H Strong Neodymium Arc Permanent Magnet for Rotary Encoders Specifications(1″=25.4mm; 1lbs=0.453kg) Part No.: HSREM-OR39.5xIR35.5xL40xW26 Materials: NdFeB, Grade N42H Dimensions: OR39.50*IR35.50*Width26.00mm* Length 40.00mm, (L30*W26*T4mm),As Shown in Below Picture Plating: Zinc Plated Magnetizing: […]

Neodymium Iron Boron Micro Block Neo Magnets

Neodymium Iron Boron Micro Block Neo Magnets

Neodymium Iron Boron Micro Block Neo Magnets F6.5*1.2*0.6mm Nd N38H, buy powerful performance sintered neodymium block magnets, high precise micro Neo magnets, Tiny Rectangular NdFeB Magnets China supplier Neodymium Iron Boron Micro Block Neo Magnets Dimension 6.5*1.2*0.6mm, Nickel coating, Shape block, Grade N38H We have the ability to make small neodymium micro magnets less than […]

Zinc Plated Ring NdFeB Tiny Magnets

Zinc Plated Ring NdFeB Tiny Magnets Ф5.0*Ф3.0*5.0mm

Zinc Plated Ring NdFeB Tiny Magnets Ф5.0*Ф3.0*5.0mm N45, Zn Plating affordable high-performance neodymium (NdFeB) magnets, high precision micro Neo magnets for electronics and medical applications, sensor magnets, small neodymium micro magnets,  micro Nd magnets China supplier & factory Zinc Plated Ring NdFeB Tiny Magnets Dimension Ф5.0*Ф3.0*5.0mm, Zinc coating, Shape ring, Grade N45 (NdFeB) Neodymium, a […]

Tiny Neodymium Magnets for Watch Instrument and Meter

Tiny Neodymium Magnets for Watch Instrument and Meter Ф3.0*Ф2.65*1.5mm

Tiny Neodymium Magnets for Watch Instrument and Meter Ф3.0*Ф2.65*1.5mm N35H, Teflon Plating Sintered Neodymium Micro Magnets, high precision compass or GPS Magnet, Ring NdFeB magnets for miniature motor, High Precision Micro Electronic Magnets, Smartphone tiny magnets China supplier Tiny Neodymium Magnets for Watch Instrument and Meter Dimension Ф3.0*Ф2.65*1.5mm, Plating Teflon coating, Shape ring, Grade N33SH […]

Neodymium Ring Tiny Micro Magnets Ф2.0Ф1.20.3mm

Neodymium Ring Tiny Micro Magnets Ф2.0*Ф1.2*0.3mm

Neodymium Ring Tiny Micro Magnets Ф2.0*Ф1.2*0.3mm N48, Powerful Sintered Neodymium Sensor Magnets, Pressure/Force/Weight Sensor Ring Micro Magnet, Ring NdFeB magnets for Hall Sensor (Detect Magnetic Field), High Precision Micro Electronic Magnets, tiny ultra-small magnets China supplier Neodymium Ring Tiny Micro Magnets Dimension Ф2.0*Ф1.2*0.3mm, Plating Nickel coating, Shape ring, Grade N48 HSMAG has acquired a great […]

Powerful Sintered Neodymium Micro Sensor Magnets

Powerful Sintered Neodymium Micro Sensor Magnets Ф1.5*Ф1.0*5.2mm

Powerful Sintered Neodymium Micro Sensor Magnets Ф1.5*Ф1.0*5.2mm, Super High Power Tube Nd Magnets N35H, Micro Sensor Cylinder Magnet,  Ring NdFeB magnets, High Precision Micro Electronic Magnets, Parylene coated tiny micro magnets China supplier Powerful Sintered Neodymium Micro Sensor Magnets Dimension Ф1.5*Ф1.0*5.2mm, Plating Nickel coating, Shape ring, Grade N35H HSMAG has acquired a great experience and […]

Super High Power Magnets Tiny Neodymium Ring

Super High Power Magnets Tiny Neodymium Ring Ф1.9*Ф1.5*1.3mm

Super High Power Magnets Tiny Neodymium Ring Ф1.9*Ф1.5*1.3mm, N52 Powerful Sintered Neodymium Ring Shape Micro Sensor Magnet Custom, Parylene Plated Ring NdFeB magnets, High Precision Micro Electronics Magnets, Parylene coated ring tiny neo micro magnets China supplier NSuper High Power Magnets Tiny Neodymium Ring Dimension Ф1.9*Ф1.5*1.3mm, Plating Nickel coating, Shape ring, Grade N52 We own […]

High Precision Tube Parylene Coated Neodymium Magnet

High Precision Tube Parylene Coated Neodymium Magnet

High Precision Tube Parylene Coated Neodymium Magnet Ф0.9*Ф0.65*5.2mm, Powerful Neodymium Rod Shape Micro Sensor Magnet Customized Size, Parylene Plated Cylinder NdFeB magnets, High Precision Micro Bar Tube Magnets, Parylene coated cylindrical rod tiny Sintered neodymium magnets China supplier High Precision Tube Parylene Coated Neodymium Magnet Dimension Ф0.9*Ф0.65*5.2mm, Plating Parylene coating, Shape rod cylinder tube We […]

Parylene coating Cylinder NdFeB Micro Magnets Ф0.5Ф0.252mm

Parylene coating Cylinder NdFeB Micro Magnets Ф0.5*Ф0.25*2mm

Parylene coating Cylinder NdFeB Micro Magnets Ф0.5*Ф0.25*2mm, Neodymium Rod Shape Magnet Customized Size accepted, Parylene Plated Cylinder NdFeB magnets, High Precision Micro Bar Tube Magnets, Parylene coated cylindrical rod tiny neodymium magnets China supplier Parylene coating Cylinder NdFeB Micro Magnets Dimension Ф0.5*Ф0.25*2mm, Plating Parylene coating, Shape rod cylinder tube Neodymium Iron Boron Magnets or “NdFeB” […]