Customized Plastic Injection Magnet For Motors

Customized Plastic Injection Magnet For Motors

NEWLIFE Injection Molded Magnets are made from Strontium Ferrite , NdFeB, or a combination of the two and blends of magnetic materials to achieve an extensive range of properties. So sometimes bonded NdFeB magnets, bonded NdFeB and Ferrite mixed magnets, and bonded ferrite magnet.
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Product Details

NEWLIFE Injection Molded Magnets are made from Strontium Ferrite , NdFeB, or a combination of the two and blends of magnetic materials to achieve an extensive range of properties. So sometimes we do the injection molded magnets, we can make injection bonded NdFeB magnets, bonded NdFeB and Ferrite mixed magnets, and bonded ferrite magnet.


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Binder of Injection Molded Magnets

Binder types include Nylon 6 and 12, PPS, and Polyamide or polymer, which are capable of a wide range of application temperatures from -40°C to 180°C. 

Injection Molded magnets and magnetic materials can be molded into complex shapes and also molded directly onto components or be inserted directly inside or against an existing component to produce assembly pieces. 


Features of Injection Molded Magnets

So the Injection molded magnets dimensionally conform to mold cavities, which are precisely machined, resulting in finished products which usually do not require further finishing and post processing operations, which eliminates subsequent processing and reduces total cost.


Injection Molded Magnets:

· Binder Types / Nylon / PPS / Polyamide.

· Temperature Range -40c – 180c

· Very Tight tolerances off tool ( 0.002 -0.003 Typical )

· Very good mechanical strength


Manufacturing processes of injection mould bonded magnets

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Compression Bonded magnets 


Bonded magnets can also be made through the process of compression bonding which offer higher magnetic output but are limited to simpler geometries than Injection Molded materials. Compression Bonded magnets can be made from either powerful NdFeB or SmCo powders material, mixed into some binders. The compression bonded magnets provides the dimensions typically vary .002" or better for a given run.

Compression bonded magnet is isotropic, so it can be magnetized through any direction, including multi-polar arrangements. 

It can be machined on a mill or lathe, because the material is in an epoxy binder. However, the material will not support a thread, so holes cannot be tapped. Compression bonded magnet is often used to substantially reduce the size of designs that used ceramic magnet materials. Significant size reductions can be achieved because Compression bonded magnet is approximately 3 times stronger than ceramic magnet material. In addition, since Compression bonded magnet is isotropic, it can be magnetized multi-polar, such as a N-S-N-S pattern on the outer diameter of a ring.


Compression Bonded Magnets:

· Higher Magnetic Strength due to higher magnetic particle density.

· Epoxy Binder / Resistant to normal industrial solvents and automotive fluids

· Epoxy Coat after manufacturing to prevent oxidation

· Temperature Range -40c – 165c

· “Tight” tolerances off tool

· Good mechanical strength


Manufacturing processes of compression bonded magnets:

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Application of Plastic Bonded Magnets:

· Sensors, Auto sensor magnet

· Brushless DC Motors

· Speed meter of Automobile 

· BLDC Motor Rotor, Auto fan motor magnets

· Magnetic Buzzer 

· Magnet Roller for Copy Machine

· Vacuum cleaner motor magnets

· Air conditioner motor magnets

Plastic bonded magnets are great for a wide range of applications from sensors to brushless DC motors and just about everything else in between. 


We can help you fine tune your selection in order to better fit your application and will ensure that you receive the best possible bonded magnet based on your needs and requirements.


NEWLIFE is a professional Injection molded magnets supplier in China, welcome to wholesale iso/ts 16949 certificated customized plastic injection magnet for motors from our factory.


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