Bonded Magnets

Bonded Magnets, Bonded NdFeB, Isotropic Plastic Bonded Neodymium Magnets, Custom High Precision Bonding Neodymium Magnets, Polymer-bonded magnetic compounds, Polymer Bonded Rare-earth Magnets China Factory Supplier & Manufacturer

Bonded Magnets – Bonded NdFeB (Neodymium) Magnet is made by binding rapid-quenching neodymium (NdFeB) powder with a resin. This is then either compression moulded with epoxy or injection moulded with nylon. The resultant magnets have high dimensional accuracy, are less brittle than normal neodymium magnets but are also less powerful. Being less brittle, they can be more easily made into thin walled ring magnets.

Permanent magnets are fragile. Have you ever wonder there is a flexible permanent magnet? Try finding it in the following content.

 Compression Bonded NdFeB Magnets

Polymer Bonded Magnet By MPCO PDF

 Injection Molded NdFeB Magnets
Compression Bonded NdFeB Magnets Injection Molded NdFeB Magnets

What is bonded Neodymium Iron Boron (NdFeB) Magnet?

Bonded Neodymium Iron Boron (NdFeB) Magnet, a type of custom molded magnets, is made by binding neodymium (NdFeB) powder with a synthetic resin or polymer.

Bonded NdFeB Magnets

Bonded NdFeB Magnets

Injection Molded Magnets VS Compression Bonded Magnets

It can be manufactured in complex forms by means of pressing or extruding.

Bonded ndfeb magnets that are created through injection molding can be formed into complex shapes and also insert molded directly onto other components to produce assembly parts.

Injection bonded magnets can be made from NdFeB, Ferrite or a combination of the two.

Compression bonded neodymium magnets offer higher magnetic property (High energy product up to 12 MGOe) than injection-molded magnets (High energy product up to 6 MGOe), but are limited to more simple geometries.

Compression bonded magnets can be made from either NdFeB or SmCo powders, so it’s also called bonded rare earth magnets.

Bonded Neodymium Magnet Production Process

Injection Molded Magnet: Powder + Binder + Additive – Weighing – Mixing – Extruding Pelletizing – Injection Molding – Finishing – Coating – Magnetization

Compression Molded Magnet: Powder + Epoxy Resin – Weighing – Mixing & Granulation – Particles Adjusting – Compression Molding – Curing – Finishing – Coating – Magnetization

Bond Neo Magnet Grade

Many orders choose grades BNP-8 and BNP-10. You can find more information from our Bond Magnet Grade Page.

Surface Treatment

Although plastic bonded ndfeb magnets have a good corrosion resistance, we still advise to make a coating for them so that the durability is optimal. Epoxy is the most commonly used plating for bonded ndfeb magnet. You can find more information from our Magnet Coating Page.

Magnetization Direction

Due to the isotropy, the plastic bonded magnets can be magnetized in different directions. More complex directions are easy to realize. You can find more information from our Magnetization Direction Page.

Tolerance

There is no necessary for secondary operation in the production process. So the consistency of magnetic performance is good and tolerances are very tight.

Advantages

Relatively Powerful Magnetic force
Lower Temperature Resistance
Excellent Oxidation Resistance
Good Chemical Resistance
Extreme resistance to demagnetization
Multi-pole magnetization direction
Tight Tolerances Possible
Good Mechanical Strength

Application

Bonded magnets are mainly used on different motors and sensors, and you can think it is born for auto industry.

It also makes more application possibilities than sintered magnets. For example, the use of higher-density bonded neodymium magnets is helpful in achieving weight and volume reduction in permanent magnet motors, resulting in raw material cost savings.

stepper motors
actuators
magnetic bearings
steering control motors
magnetic clutch
peripheral motors
spindle motors
auto sensors
auto fan motors
vacuum cleaner motor
air conditioner motor
mobile vibration motor

Bonded VS Sintered Neodymium Magnets

The magnetic property of bonded neodymium magnets are weaker compared with sintered neodymium; nevertheless, bonded ndfeb magnets make up many insufficiencies of sintered magnet, such as

Precise size
Less brittle
Light weight
A molding assembly
More complex shapes
More choice of magnetized directions
Greater resistance against corrosion
So bonded neodymium magnet is a more flexible alternative to sintered neodymium magnet.

Neodymium Ring Bonded Magnets

Traditionally, to realize multi-pole requirement, the ring magnets used on motors are assembled by segment magnets.

But it is risky while spinning, the adhesive material is out of action. And it’s hard to control the component’s tolerance in the process of assembly. Also it’s not easy to keep magnetic properties’ consistency of all arc magnets.

A better solution is to make multi-poles on a ring magnet instead of segment formed ring.

Now we can provide multi-pole & radial ring sintered ndfeb magnet to meet this requirement. But the limiting factor for production is still a big problem and makes lots of customers seek help from other magnet materials.

Bonded magnet can be magnetized into complex patterns with multiple poles that sintered magnet can’t do. This makes multi-poles ring bonded neodymium magnet an ideal material for different types of motors and sensors.

MPCO provides high precise custom bonded NdFeB magnets according to the specific requirements of customers; PLEASE SEND EMAIL TO US, our professional engineer will work with you.

Alternator Motor Rotor Ring Permanent Neodymium Bonded Magnets

Alternator Motor Rotor Ring Permanent Neodymium Bonded Magnets

Alternator Motor Rotor Ring Permanent Neodymium Bonded Magnets, Compression Injection Plastic Overmolding Magnet, Insert Injection Molded Magnet Rotor Assemblies, Anisotropic Injection Molding shaft plastic overmolded Ferrite / Neodymium Magnets China Supplier Alternator Motor Rotor Ring Permanent Neodymium Bonded Magnets Feature Application Alternator Motorcycle Rotor Size Customer Drawing Magnetic performance requirement 8-poles on OD, Concenticity <0.05mm […]

Bonded Permanent Alternator Motorcycle Rotor Magnet

Bonded Permanent Alternator Motorcycle Rotor Magnet

Bonded Permanent Alternator Motorcycle Rotor Magnet, Injection Plastic Overmolding Magnet, bonded magnet for water oil pump, Insert Injection Molded Magnet Rotor Assemblies, Anisotropic Injection Molding shaft plastic overmolded Ferrite / Neodymium Magnets China Supplier Bonded Permanent Alternator Motorcycle Rotor Magnet Application Alternator Motorcycle Rotor Size Customer Drawing Magnetic performance requirement 6-poles on OD, Concenticity <0.05mm […]

Injection Ring Bonded Ferrite Magnet

Injection Ring Bonded Ferrite Magnet

Injection Ring Bonded Ferrite Magnet, Water Pump Rotor Injection Plastic Overmolding Magnet, bonded magnet for water oil pump, Plastic Insert Injection Molded Magnet Assemblies, Injection Molding shaft plastic overmolded Ferrite / Neodymium Magnets China Supplier Injection Ring Bonded Ferrite Magnet Application Water Oil Pump Size Customer Drawing Magnetic performance requirement 6poles on OD, Sin Wave […]

Water Pump Rotor Injection Plastic Overmolded Magnet

Water Pump Rotor Injection Plastic Overmolded Magnet

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Injection Magnetic Rotor Impeller Pump Magnet

Injection Magnetic Rotor Impeller Pump Magnet

Injection Magnetic Rotor Impeller Pump Magnet, bonded magnet for water oil pump, Plastic Insert Injection Molded Magnet Assemblies, Injection Molding shaft plastic overmolded Ferrite / Neodymium Magnets China Supplier Injection Magnetic Rotor Impeller Pump Magnet, bonded magnet for water oil pump, Plastic Insert Injection Molded Magnets, Injection Molding Injection Magnetic Rotor Impeller Pump Magnet Application […]

Compression Molded SmCo Magnets

Compression Molded SmCo Permanent Magnets

Compression Molded SmCo Permanent Magnets, Customized Size Compression & Injection Mold Bonded Samarium Cobalt Magnets, anisotropic & isotropic bonded SmCo5 / Sm2Co17 permanent magnets, Plastic Polymer Bonded Samarium Hot Pressed Magnet, Permanent Magnet China Supplier Compression Molded SmCo Permanent Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet (Rare […]

Injection Molded SmCo Rare Earth Bonded Magnets

Injection Molded SmCo Rare Earth Bonded Magnets

Injection Molded SmCo Rare Earth Bonded Magnets, Compression & Injection Mold Bonded Samarium Cobalt Magnets, custom anisotropic & isotropic bonded SmCo5 / Sm2Co17 permanent magnets, Plastic Polymer Bonded Hot Pressed Samarium Magnet China Manufacturer Injection Molded SmCo Rare Earth Bonded Magnets Feature: Part No.:  MPCO-BISM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet […]

Plastic Nylon Injection Molding Bonded SmCo

Plastic Nylon Injection Molding Bonded SmCo

Plastic Nylon Injection Molding Bonded SmCo Magnet Assemblies, Compression & Injection Molded Rare Earth Samarium Cobalt Magnets, anisotropic & isotropic bonded SmCo5 / Sm2Co17 permanent magnets, Plastic Injection Nylon PPS Polymer Bonded Hot Pressed Samarium Magnet China Supplier Plastic Nylon Injection Molding Bonded SmCo Magnets Feature: Part No.:  MPCO-BISM series Type: Permanent Composite: Compression & […]

Injection Plastic Bonded Samarium Cobalt Magnet Assemblies

Injection Plastic Bonded Samarium Cobalt

Injection Plastic Bonded Samarium Cobalt Magnet Assemblies, Compression & Injection Molded Rare Earth Samarium Cobalt Magnets, anisotropic & isotropic bonded SmCo5 / Sm2Co17 permanent magnets, Plastic Injection Nylon PPS Polymer Bonded Hot Pressed Samarium Magnet China Supplier Injection Plastic Bonded Samarium Cobalt SmCo Magnets Feature: Part No.:  MPCO-BISM series Type: Permanent Composite: Compression & Injection […]

Isotropic Bonded SmCo Permanent Magnets

Isotropic Bonding SmCo Permanent Magnets

Isotropic Bonding SmCo Permanent Magnets, Compression & Injection Molding Bonded SmCo Magnet, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Hot Pressed Bonded Samarium Cobalt Magnets China Supplier Isotropic Bonding SmCo Permanent Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet (Rare Earth SmCo) Size […]

Epoxy Polymer Samarium Cobalt Bonding Permanent Magnet

Epoxy Polymer Samarium Cobalt Bonding Permanent Magnet

Epoxy Polymer Samarium Cobalt Bonding Permanent Magnet, Compression & Injection Molding Bonded SmCo Magnet, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Hot Pressed Bonded Samarium Cobalt Magnets China Supplier Epoxy Polymer Samarium Cobalt Bonding Permanent Magnet Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet […]

Epoxy Coating Compression Molding Bonded Samarium Cobalt

Epoxy Coating Compression Molding Bonded Samarium Cobalt

Epoxy Coating Compression Molding Bonded Samarium Cobalt, Compression & Injection Molding Bonded SmCo Magnet, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Hot Pressed Bonded Samarium Cobalt Magnets China Supplier Epoxy Coating Compression Molding Bonded Samarium Cobalt Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet […]

Polymer Bonded Rare Earth Compression Molding SmCo Magnets

Polymer Bonded Rare Earth Compression Molding SmCo Magnets

Polymer Bonded Rare Earth Compression Molding SmCo Magnets, Compression & Injection Molding Bonded SmCo Magnet, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Hot Pressed Bonded Samarium Cobalt Magnets China Supplier Epoxy Polymer Bonded Samarium Cobalt Rare Earth Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium […]

Epoxy Polymer Bonded Samarium Cobalt Rare Earth Magnets

Epoxy Polymer Bonded Samarium Cobalt Rare Earth Magnets

Epoxy Polymer Bonded Samarium Cobalt Rare Earth Magnets, Compression & Injection Mold Bonded SmCo Magnet, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Hot Pressed Bonded Samarium Cobalt Magnets China Supplier Epoxy Polymer Bonded Samarium Cobalt Rare Earth Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium […]

Anisotropic Bonded Rare Earth SmCo Magnets

Anisotropic Bonded Rare Earth SmCo Magnets

Anisotropic Bonded Rare Earth SmCo Magnets, Compression & Injection Mold Bonded Samarium Cobalt Magnets, anisotropic & isotropic bonding SmCo5 / Sm2Co17 permanent magnets, Plastic Epoxy Polymer Bonded Samarium Cobalt Hot Pressed Magnets China Supplier Anisotropic Bonded Rare Earth SmCo Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet (Rare […]

Hot Pressed Injection Bonded SmCo Magnets

Hot Pressed Injection Bonded SmCo Magnets

Hot Pressed Injection Bonded SmCo Magnets, Compression & Injection Molded Rare Earth Samarium Cobalt Magnets, custom anisotropic & isotropic bonded SmCo5 / Sm2Co17 permanent magnets, Plastic Injection Nylon PPS Polymer Bonded Hot Pressed Samarium Magnet China Supplier Hot Pressed Injection Bonded SmCo Magnets Feature: Part No.:  MPCO-BISM series Type: Permanent Composite: Compression & Injection Samarium […]

Compression Bonded SmCo Magnets

Compression Bonded SmCo Magnets

Compression Bonded SmCo Magnets, Customized Compression & Injection Mold Bonded Samarium Cobalt Magnets, anisotropic bonded SmCo permanent magnets, Plastic Polymer Bonded Samarium Hot Pressed Magnet, Permanent Magnet China Supplier Compression Bonded SmCo Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet (Rare Earth SmCo) Size / Shape: Custom Application: […]

Bonded Samarium Cobalt Magnets

Bonded Samarium Cobalt Magnets

Bonded Samarium Cobalt Magnets, Customized Polymer Compression & Injection Bonded SmCo Magnets, anisotropic bonded NdFeB/SmCo permanent magnets, Plastic Bonded Samarium Rotor Magnet, Strong Bond Permanent Magnet China Supplier Bonded Samarium Cobalt Magnets Feature: Part No.:  MPCO-BCSM series Type: Permanent Composite: Compression & Injection Samarium Cobalt Magnet (Rare Earth SmCo) Size / Shape: Custom Application: Motors, […]

Neodymium Hot Pressed Magnet Permanent NdFeB Hot Extrusion Ring

Neodymium Hot Pressed Magnet Permanent NdFeB Hot Extrusion Ring

Neodymium Hot Pressed Magnet Permanent NdFeB Hot Extrusion Ring, BLDC Motor Compression Bonded NdFeB Rotor Magnet, Multipole Ring Diametrically Magnetized Bonded Neodymium Magnets, Radially Powerful Nd-Fe-B Tube Ring Magnet China Supplier Neodymium Hot Pressed Magnet Permanent NdFeB Hot Extrusion Ring Specifications: Dimensions:  Customized design drawing Tolerances: +/-0.1 mm Material: Compression Bonded NdFeB Plating/Coating: black epoxy […]

BLDC Motor Multipole Hot Pressed Process NdFeB Rings

BLDC Motor Multipole Hot Pressed Process NdFeB Rings

BLDC Motor Multipole Hot Pressed Process NdFeB Rings, Compression Bonded NdFeB Rotor Magnet, Multipole Ring Tube Diametrically Magnetized Bonded Neodymium Magnets, Radially Powerful Nd-Fe-B Cylindrical Ring Magnet China Supplier BLDC Motor Multipole Hot Pressed Process NdFeB Rings Specifications: Dimensions:  Customized design drawing Tolerances: +/-0.1 mm Material: Compression Bonded NdFeB Plating/Coating: black epoxy Magnetization Direction: Diametrically […]

Radiation Oriented Ring Bonded NdFeB Rotor Magnet

Radiation Oriented Ring Bonded NdFeB Rotor Magnet

Radiation Oriented Ring Bonded NdFeB Rotor Magnet, Radial Magnetization Compression Bonding Magnet, Multipole 8 10 12 Poles Cylindrical Tube Diametrically Magnetized Bonded Neodymium Magnets China Factory Radiation Oriented Ring Bonded NdFeB Rotor Magnet Specifications: Dimensions: Customized design drawing Tolerances: +/-0.1 mm Grade: BPN6 / BPN8 / BPN10 / BPN12 Material: Compression Bonded NdFeB Plating/Coating: black […]

Diametrically Magnetization Compression Bonded Magnet Ring

Diametrically Magnetization Compression Bonded Magnet Ring

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Epoxy Coating Ring Compression Bonded NdFeB Rotor Magnets W 8 Poles

Epoxy Coating Ring Compression Bonded NdFeB Rotor Magnets W/ 8 Poles

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10-Poles Bonded NdFeB Diametrically Ring Magnet

10-Poles Bonded NdFeB Diametrically Ring Magnet

10-Poles Bonded NdFeB Diametrically Ring Magnet, Multipole Ring Tube Diametrically Magnetized Bonded Neodymium Rare Earth Magnet, Compression Bonded NdFeb High Property Radially Aligned Cylindrical Ring Magnet China Supplier 10-Poles Bonded NdFeB Diametrically Ring Magnet Specifications: Dimensions: Customized design drawing Tolerances: +/-0.1 mm Grade: BPN10 Material: Compression Bonded NdFeB Plating/Coating: black epoxy Magnetization Direction: Diametrically (Poles […]

Multipole Ring Bonded Epoxy Resin Binder Magnet BNP-2

Multipole Ring Bonded Epoxy Resin Binder Magnet BNP-2

Multipole Ring Bonded Epoxy Resin Binder Magnet BNP-2, DC Motor PPS epoxy resin high-end high precision Hot-pressed / hot deformed anisotropic permanent magnets, Compression molding Bonded Radial Ring Magnets, higher and newer grades Multipoles Bonded Magnet Multipole Ring Bonded Epoxy Resin Binder Magnet BNP-2 China bonded ndfeb magnets neodymium magnets manufacturer & supplier – Bonded […]

BNP-11 Diametrically Magnetized Radial Ring Magnet For DC Motor

BNP-11 Diametrically Magnetized Radial Ring Magnet For DC Motor

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Air Cleaner Air Purifier Bonded Neodymium Hot Deformed Magnet

Air Cleaner Air Purifier Bonded Neodymium Hot Deformed Magnet

 Air Cleaner Air Purifier Bonded Neodymium Hot Deformed Magnet, PPS epoxy resin high-end high precision Hot-pressed/hot deformed anisotropic magnet, BNP-10H Compression Bonded Radial Ring Magnets, Radial Ring Multipoles Bonded NdFeB Motor Tube Magnet Air Cleaner Air Purifier Bonded Neodymium Hot Deformed Magnet Parameter: Model Number: BNP-10H Size: Custmized Type: Permanent magnet Composite: Bonded Neodymium + […]

Thin Thickness Compression Bonded Radial Ring Magnets

Thin Thickness Compression Bonded Radial Ring Magnets

Thin Thickness Compression Bonded Radial Ring Magnets, Full-Density Isotropic Magnets, Radial Ring Multipoles Injection Bonded NdFeB Motor Magnet, Bonded Magnet, epoxy resin high-end high precision Hot-pressed/hot deformed anisotropic magnet Thin Thickness Compression Bonded Radial Ring Magnets Parameter: Model Number: BNP-9H Size: Custmized Type: Permanent magnet Composite: Bonded Neodymium + Plastic Shape: Ring Application: Industrial Magnet […]