Neodymium Magnets

Neodymium Magnets

Build Your Custom Magnet Arc type Disc type Ring type Rod type Block type Sphere type Neodymium Magnet manufacturer & supplier We are professional Neodymium Magnet manufacturer and supplier in China. We can produce Neodymium Magnet (NdFeB magnet) according to your requirements. More types of Neodymium Magnet (NdFeB magnet), Sintered Neodymium Magnet (NdFeB magnet),

Build Your Custom Magnet

Shape and specification

Nd-Fe-B magnet are mostly non-standard parts. The shape and size of magnet are generally processed according to customers’ requirements, such as segment, square, cylinder, ring and other special shape, The largest size of large-size products can reach to 200mm×200mm×80mm.

Neodymium Arc Magnets
Arc type
Neodymium Disc Magnets
Disc type
Neodymium Ring Magnets
Ring type
neodymium Cylinder & Rod Magnets
Rod type
Neodymium Block magnets
Block type
Neodymium Sphere & ball Magnets
Sphere type
Permanent Magnet Disc-Shaped N35 D15x1.5

Permanent Magnet Disc-Shaped N35 D15x1.5

Neodymium Disc Magnets,D15x1.5, Ni-Cu-Ni, Grade_N35

Rare Earth Rectangular Magnets N35 30X15X3

Rare Earth Rectangular Magnets N35 30X15X3

Neodymium Block Magnets,30X15X3, Ni-Cu-Ni, Grade_N35

Neodymium Block Rare Earth Magnets N35 18X7X4

Neodymium Block Rare Earth Magnets N35 18X7X4

Neodymium Block Magnets,18X7X4, Ni-Cu-Ni, Grade_N35

The surface treatment

Neodymium magnets are prone to corrosion in humid environments. For protective measure for corrosion resistance, Magnetic Hold offers nickel, zinc, tin, silver, gold plating and spray coating epoxy resin.

Pctures Arc Magnets Rod Magnets Ring Magnets Ball Magnets Block Magnets
Coating Zinc Nickel Gold Silver Epoxy Parylene
Thickness 7-15um 15-21um 16-23um 16-23um 20-38um 10-15um
Salt spray test 12 hours 24 hours 36 hours 24 hours 48 hours 48 hours

Magnetization

Magnetism direction - oriented through thickness

oriented through thickness

Magnetism direction - axially oriented

axially oriented

Magnetism direction - axially oriented oriented in segments

axially oriented in segments

Magnetism direction - oriented laterally multipole on one face

oriented laterally
multipole on one face

Magnetism direction - multipole oriented in segments on outside diameter

multipole oriented in segments on outside diameter*

Magnetism direction - multipole oriented in segments on one face

multipole oriented in segments on one face

Magnetism direction - radially oriented

radially oriented *

Magnetism direction - oriented through diameter

oriented through
diameter *

Magnetism direction - multipole oriented in segments on inside diameter

multipole oriented in segments on inside diameter*

Magnetism direction - radially oriented

radially oriented

Magnetism direction - diametrically oriented

diametrically oriented

all available as isotropic or anisotropic material
* only available in isotropic and certain anisotropic materials only

Application

NdFeB magnet is widely used in Machinery, Video and Audio equipments, Communication Devices, Medical Devices, Office Automation Equipments, Space Flight and Aviation, etc. Our magnets are mainly used for motors and generators, such as Elevator Motors. Wind Turbines, Servo Motors, Motors for Hybrid Electric Vehicle, Battery Electric Vehicles, Linear motors and Compressor Motors etc.

Block Magnet for Automobile

Block Magnet for Automobile

Permanent Arc Magnet for Servo Motor

Permanent Arc Magnet for Servo Motor

Nd Magnet for Wind Turbine

Nd Magnet for Wind Turbine

Nd Magnet for Elevator Motor

Nd Magnet for Elevator Motor

Magnets For High- speed Motors

Magnets For High- speed Motors

Magnets for Wind Turbine Generators

Magnets for Wind Turbine Generators

Neodymiu Magnet Grade

Many grades of Neodymium magnets exist to support a variety of industrial applications. The range of Neo grades typically extends from 33 MGOe to 52 MGOe. This range allows for optimizing cost, performance, and operational temperature resistance.

The typical convention for “Grade” is to use the value of the particular magnet alloy’s Energy Density or Maximum Energy Product. Oftentimes there are letters or a two digit number suffix attached to the Grade which indicates the Intrinsic Coercive Force (Hci) level of the magnet alloy. This Hci is a good indicator of the maximum allowable temperature a particular Neo alloy can tolerate before irreversible demagnetizing occurs.

The higher the “Grade number” then the higher the Energy Density. Usually the higher the Energy Density the stronger the magnet, but this is very much dependent upon the magnet’s operational environment.

Grade (BR) (HCb) (Hcj) (BH)max Tmax
N35 11.7-12.1 KGs >11.0 KOe >12 KOe 33-35 MGOe 80C / 176F
N38 12.2-12.6 KGs >11.0 KOe >12 KOe 36-38 MGOe 80C / 176F
N40 12.6-12.9 KGs >11.0 KOe >12 KOe 38-40 MGOe 80C / 176F
N42 13.0-13.2 KGs >11.0 KOe >12 KOe 40-42 MGOe 80C / 176F
N45 13.3-13.7 KGs >11.0 KOe >12 KOe 43-45 MGOe 80C / 176F
N48 13.8-14.2 KGs >11.0 KOe >12 KOe 45-48 MGOe 80C / 176F
N50 14.1-14.5 KGs >11.0 KOe >11 KOe 48-50 MGOe 60C / 140F
N52 14.5-14.8 KGs >11.2 KOe >11 KOe 49.5-52 MGOe 60C / 140F
Grade (BR) (HCb) (Hcj) (BH)max Tmax
N35M 11.7-12.1 KGs >11.4 KOe >14 KOe 33-35 MGOe 100C / 212F
N38M 12.2-12.6 KGs >11.4 KOe >14 KOe 36-38 MGOe 100C / 212F
N40M 12.6-12.9 KGs >11.4 KOe >14 KOe 38-40 MGOe 100C / 212F
N42M 13.0-13.3 KGs >11.4 KOe >14 KOe 40-42 MGOe 100C / 212F
N45M 13.3-13.7 KGs >11.4 KOe >14 KOe 42-45 MGOe 100C / 212F
N48M 13.6-14.2 KGs >11.4 KOe >14 KOe 45-48 MGOe 100C / 212F
N50M 14.1-14.5 KGs >11.4 KOe >14 KOe 48-50 MGOe 100C / 212F
Grade (BR) (HCb) (Hcj) (BH)max Tmax
N33H 11.4-11.7 KGs >10.3 KOe >17 KOe 31-33 MGOe 120C / 248F
N35H 11.7-12.1 KGs >10.8 KOe >17 KOe 33-35 MGOe 120C / 248F
N38H 12.2-12.6 KGs >11.4 KOe >17 KOe 36-38 MGOe 120C / 248F
N40H 12.6-12.9 KGs >11.4 KOe >17 KOe 38-40 MGOe 120C / 248F
N42H 13.0-13.3 KGs >11.4 KOe >17 KOe 40-42 MGOe 120C / 248F
N45H 13.3-13.7 KGs >11.4 KOe >17 KOe 42-45 MGOe 120C / 248F
N48H 13.6-14.2 KGs >11.4 KOe >16 KOe 45-48 MGOe 120C / 248F
Grade (BR) (HCb) (Hcj) (BH)max Tmax
N30SH 10.8-11.2 KGs >10.1 KOe >20 KOe 28-30 MGOe 150C / 302F
N33SH 11.4-11.7 KGs >10.3 KOe >20 KOe 31-33 MGOe 150C / 302F
N35SH 11.7-12.1 KGs >10.8 KOe >20 KOe 33-35 MGOe 150C / 302F
N38SH 12.2-12.6 KGs >11.4 KOe >20 KOe 36-38 MGOe 150C / 302F
N40SH 12.6-12.9 KGs >11.4 KOe >20 KOe 38-40 MGOe 150C / 302F
N42SH 13.0-13.3 KGs >11.4 KOe >20 KOe 40-42 MGOe 150C / 302F
N45SH 13.3-13.7 KGs >11.4 KOe >19 KOe 43-45 MGOe 150C / 302F
Grade (BR) (HCb) (Hcj) (BH)max Tmax
N28UH 10.4-10.8 KGs >9.8 KOe >25 KOe 26-28 MGOe 180C / 356F
N30UH 10.8-11.2 KGs >10.1 KOe >25 KOe 28-30 MGOe 180C / 356F
N33UH 11.4-11.7 KGs >10.3 KOe >25 KOe 31-33 MGOe 180C / 356F
N35UH 11.7-12.1 KGs >10.8 KOe >25 KOe 33-35 MGOe 180C / 356F
N38UH 12.2-12.6 KGs >11.4 KOe >25 KOe 36-38 MGOe 180C / 356F
N40UH 12.6-12.9 KGs >11.4 KOe >25 KOe 38-40 MGOe 180C / 356F
Grade (BR) (HCb) (Hcj) (BH)max Tmax
N30EH 10.8-11.2 KGs >10.1 KOe >30 KOe 28-30 MGOe 200C / 392F
N33EH 11.4-11.7 KGs >10.3 KOe >30 KOe 31-33 MGOe 200C / 392F
N35EH 11.7-12.1 KGs >10.8 KOe >30 KOe 33-35 MGOe 200C / 392F
N38EH 12.2-12.6 KGs >10.8 KOe >30 KOe 36-38 MGOe 200C / 392F

Did You Know?

All of the pull force values we specify have been tested in our laboratory. We test these magnets in two different configurations. Case 1 is the maximum pull force generated between a single magnet and a thick, ground, flat steel plate. Case 2 is the maximum pull force generated with a single magnet sandwiched between two thick, ground, flat steel plates. Case 3 is the maximum pull force generated on a magnet attracted to another magnet of the same type.

The values are an average value for five samples of each magnet. A digital force gauge records the tensile force on the magnet. The plates are pulled apart until the magnet disconnects from one of the plates. The peak value is recorded as the "pull force". If using steel that is thinner, coated, or has an uneven or rusty surface, the effective pull force may be different than recorded in our lab.

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