2019年1月4日星期五

AMR vs. GMR Vs. TMR magnetic sensors

AMR vs. GMR Vs. TMR magnetic sensors
Many companies are working hard in the design, development and fabrication of Anisotropic Magneto-Resistance (AMR), Giant Magneto-Resistance (GMR), and Magnetic Tunneling Junction (MTJ) magnetic thin film sensors.
AMR vs. GMR Vs. TMR magnetic sensors
AMR vs. GMR Vs. TMR magnetic sensors
Working with a variety of magnetic materials (see table below) AMS deposition techniques achieve optimal conditions (uniformity, composition control, easy/hard axis orientation). The thickness range of these materials spans from <10Å (1nm) for GMR and MTJ applications to >10µ for magnetic shields and flux-concentrators.
MaterialsMagnetic PropertiesApplicationDeposition TechniqueTypical Layer Thk.
NiFe (Permalloy)SoftAMR, GMR sensorsSputtered10Ǻ – 1000Ǻ
NiFe (Permalloy)SoftShields, PolesPlated1µm – 10µm
NiFe (45/55)Soft, higher momentShields, PolesPlated1µm-10µm
CoPtHard, high coercivityPermanent magnetsSputtered500 Ǻ – 10 µm
Co ternary alloySoft, higher momentShields, Inductors, PolesSputtered1 µm – 10 µm
IrMn, PtMnAnti-ferromagneticGMR, MTJ sensorsSputtered50 – 250 Ǻ

typical AMR transfer curve
typical AMR transfer curve
We use several different vacuum deposition tools to deposit a variety of magnetic materials, including the GMR / MTJ cluster disposition system seen below. The metrology equipment for the characterization of magnetic materials includes BH loopers, VSM (Vibrating Sample Magnetometer), MFM (Magnetic Force Microscopy) and RMM (Remanent Moment Magnetization).

2018年12月11日星期二

Plastic Injection Magnet Application Classification

Plastic Injection Magnet Application Classification
Precise ring magnet for micro motor
used for automobile gauges motor, timekeeper motor,cooling fan micro motor. Product characteristics: High dimensional accuracy, small concentricity and multipole magnetizing.
Plastic injection magnet rotor assembly
suitable for automotive gauges.
Product characteristics: Simultaneous incorporating shaft, high requirements for radial run-out.
Plastic Injection Magnet Application Classification
Plastic Injection Magnet Application Classification
Magnet ring for motor
suitable for stepper motor and synchronous motors.
Product characteristics:multipoles radial magnetization, better assembly strength.
Special-shaped magnets
suitable for all kinds of sensors of automobile and motorcycle.
Product characteristics: complex shapes,one body molded with metal sheet, copper bush, shaft and other inserts, multipole or angular magnetizing.
Arc Halbach Array Neodymium Magnets

Arc Halbach Array Neodymium Magnets

Arc Halbach Array Neodymium Magnets, Powerful NdFeB Halbach Segment Magnets, Ring Permenent Halbach Array Neodymium Magnet Assembly for super high-speed Motor Rotor, Halbach component magnets, Halbach Array Magnets China Supplier Arc Halbach Array Neodymium Magnets – A Halbach Array is a special configuration of magnets to maximise the magnetic field on one side whilst reducing […]Plastic Injection Magnet Application

Neodymium Halbach Array Motor Magnets

Neodymium Halbach Array Motor Magnets

Neodymium Halbach Array Motor Magnets, Halbach Array Ring Magnet,  NdFeB Halbach Segment Magnets, Permenent Halbach Array Neodymium Magnet Assembly for Motor Rotor HSMAG’ Neodymium Halbach Array Motor Magnets make by Permenent Segment Neodymium Magnet is customized as per your design. The grade of magnet is N35-N52(M,H,SH,UH,EH,AH). If catalogue and technical support of magnet and magnetic assembly is needed, we […]Plastic Injection Magnet Application

Neodymium Motor Magnet

Rare Earth Neodymium Motor Magnet N35EH

Rare Earth Neodymium Motor Magnet N35EH, NdFeB Permanent Magnet, Black Epoxy Plating DC Motor Arc Neo Magnet, Servo Motor Nd Segment Magnet, Trapezoid Neodymium Permanent Magnets, Super Strong Segment Magnet, Industrial Motor Neodymium Permanent Magnet China Manufacturer Black Epoxy Coating Rare Earth Neodymium Motor Magnet N35EH, Permanent Nd Magnet in Arc or C shape, it […]Plastic Injection Magnet Application


Motor Segment NdFeB Magnet N52

Motor Segment NdFeB Magnet N52

Motor Segment NdFeB Magnet N52, Rare Earth Neodymium Permanent Magnet, Ni Plating Arc Neo Magnet, Servo Motor Nd Segment Magnet, Trapezoid Neodymium Permanent Magnets, Super Strong Segment Magnet, Industrial Motor Neodymium Permanent Magnet China Manufacturer Nickel Coating Motor Segment NdFeB Magnet N52, Permanent Nd Magnet in Arc or C shape, it is very popular used […]Plastic Injection Magnet Application

2018年12月9日星期日

How to Attach Invisible Sew-in Magnetic Snaps

How to Attach Invisible Sew-in Magnetic Snaps
Invisible sew-in magnetic snaps are perfect to use when you want the bag closure to lay perfectly flat or you don’t want a visible gap. These type of magnetic snaps are small, very strong magnets enclosed in a plastic case. They are generally sewn into the bag between the lining and the outer fabric and they can be used as a closure on any type of bag, with or without a flap.
In this example, the bag has an asymmetrical curve along the top and in order for the curved sides to close properly and look aesthetically pleasing, the front and back sections needed to butt right up against each other.
Attach Invisible Sew-in Magnetic Snaps
Attach Invisible Sew-in Magnetic Snaps
Using a standard magenetic snap would leave a slight gap between the front and the back sections of the bag which looked a bit odd. Using invisible sew-in magnetic snaps, the front and back sections close perfectly without any gap what-so-ever.
It’s very easy to install invisible magnetic sew-in snaps. The plastic casing allows you to easily position and stitch the magnet to your project. For this bag I’ve used Peltex heavyweight stabilizer as the under-structure, and I’ve stitched two magnetic snaps close to the top edge of the stabilizer, on the inside of the front section; one at each end.
The other two snaps are stitched to the inside of the back section. When attaching these snaps to other types of bags and purses where you don’t have the support of a rigid stabilizer, you would normally sew the snaps to a small piece of stabilizer or interfacing slightly larger than the snap casing for support, and then sew them directly to the lining, the interlining, or the bag interfacing.
A simple zigzag stitch gives a little extra security so the snaps don’t come loose.
After the snaps are sewn into place, the lining is then positioned over the top of the snaps and they become totally invisible except for a slight bump on the surface.
Once the snaps are sewn into place, the rest of the purse can be completed. Now the front and the back of the purse simply clamp shut – very elegant – and invisible!

2018年12月1日星期六

N45H Epoxy Plated Segment Generator Magnet

N45H Epoxy Plated Segment Generator Magnet Feature:
Part No.: 45HNBS211-30
Dimensions: 2” o.r. x 1” i.r. x 1” x 30
Material: Neodymium, Grade N45H
Plating/Coating: Epoxy
Magnetization Direction: North on outside face
Max. Operating Temperature: 120°C
Motor Magnets / Rare earth magnets are mostly used in motor, such as permanent magnet D.C. motors, wound field D.C. motors, gear motors, custom D.C. motors. generator or electric motor; electrical machinery
Segment magnets are of the largest quantity we made now. arc magnets are also the most popular motor magnets.
This paper analyzes the Direct Torque Control ( DTC) theory of PMSM.
We measure the temperature of the motor.
The back EMF constant and torque constant are analyzed. The calculating formulas are gived.


This paper introduces a multi-motor control system of the electric cleaner.
In this thesis, how to design a brushless DC motor control chip is discussed in detail.
Intelligent drive motor control system and intelligent charging control system.
Materials:Neodymium-Iron-Boron magnets, NdFeB magnet
Technology:Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology max from 33-53MGOev, max working temperature up to 230°C
Magnetic properties: High coercive force, (BH) max from 33 to 53MGOe, max working temperature up to 230°C.
Grades: N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH, 30EH-35EH;
Shapes and sizes: Segment/ Arc, R x r x H x Degree, Customized;
Coatings:Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
Applications:Widely used in motors, rotors, wind turbines/wind generators, etc.
Parameters: Grade (property), Size (R x r x H x Degree) or Drawing, Coating, Quantity, Etc.
Note: All of our magnets could be customized, and we’d like to give some suggestions if you need. Related keywords: ferrite magnet. rare earth magnet, NdFeB magnets

Arc Magnet

Neodymium Rare Earth Arc Magnet

Neodymium Rare Earth Arc Magnet, Motor Segment NdFeB Magnet, Neodymium Permanent Magnet, Nickel Plating DC Motor Arc Neo Magnet, Servo Motor Nd Segment Magnet Nickel Coating Motor Segment Neodymium Rare Earth Arc Magnet, Permanent Nd Magnet in Arc or C shape, it is very popular used in industrial Motor and Energy-saving Elevator applications. Trapezoid Neodymium […]

Sintered NEO Segment Countersunk Magnet

China Arc Motor Magnets

China Arc Motor Magnets, Sintered NdFeB Countersunk Segment Magnet, induction motor Neodymium Countersunk Arc Magnet, Neodymium-Iron-Boron permanent magnetism synchronous motor magnets, DC brushless motor servo-control system Rare Earth Generator Permanent Magnet China Manufacturer China Arc Motor Magnets Feature: Part No.: 40NBS841/4-c Dimensions: 8” OD x 4” ID x 1/4” thick with Countersunk Hole Material: Neodymium, […]

arc permanent magnet

Sintered NdFeB Motor Arc Permanent Magnet

Sintered NdFeB Motor Arc Permanent Magnet, N28UH Neodymium-Iron-Boron (NdFeB) Permanent Rare Earth Segment Magnets, electronics High Temp ARC Neodymium PM Magnet for Electric Servo Motors, AC asynchronous motor, Starter or DC motors Sintered NdFeB Motor Arc Permanent Magnet Feature: Part No.: 28UHNBS18.8 Dimensions:18.8 mm o.r. x31.0 mm I.r. x23.2 mm x12.0mm Material: Neodymium, Grade N28UH Plating/Coating: Nickel + Copper […]

2018年11月30日星期五

Permanent Motor Segment Neodymium Magnet

Permanent Motor Segment Neodymium Magnet  Feature:
Part No.: 35HNBS1.1/813/4-45
Dimensions: 1 1/8” o.r. x 1” i.r. x 3/4” x 45
Material: Neodymium, Grade N35H
Plating/Coating:  Color-Zinc
Magnetization Direction: North on outside face
Max. Operating Temperature: 120°C
any power-generating or power-driven machine, esp. generator or electric motor; electrical machinery


Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals. These magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs. Not sure if Neodymium is the best material for your application? Click here for an attribute and application comparison for all of the magnetic materials we offer.
Applications of Neodymium Magnets
Magnetic separators
Linear actuators
Microphone assemblies
Servo motors
DC motors (automotive starters)
Computer rigid disc drives, printers and speakers
Tolerances
For as-pressed material, tolerance on the thickness (direction of magnetization) is +/– .005”. Other dimensions are +/– 2.5% or +/– .005”, whichever is greater.



Part No.GradePlatingDimension(inch)
42NBS213/41N42Black Epoxy2” OD x 1 3/4” ID x 1” thick
40SHNBS11/211/43/4N40SHNickel1 1/2” OD x 1 1/4” ID x 3/4” thick
52NBS13/43/4N52Zinc1” OD x 3/4” ID x 3/4” thick
42HNBS1481N42HNickel14” OD x 8” ID x 1” thick
45NBS1261/2N45Nickel12” OD x 6” ID x 1/2” thick
42NBS841/4N42Nickel8” OD x 4” ID x 1/4” thick
42SHNBS841/4N42SHNickel8” OD x 4” ID x 1/4” thick
52NBS211-30N52Zinc2” o.r. x 1” i.r. x 1” x 30
50NBS211-30N50Nickel2” o.r. x 1” i.r. x 1” x 30
45HNBS211-30N45HEpoxy2” o.r. x 1” i.r. x 1” x 30
35SHNBS211-30N35SHNickel2” o.r. x 1” i.r. x 1” x 30
35HNBS1.1/813/4-45N35HNickel1 1/8” o.r. x 1” i.r. x 3/4” x 45
42HNBS1.1/813/4-45N42HNickel1 1/8” o.r. x 1” i.r. x 3/4” x 45


2018年11月28日星期三

Sintered Neodymium-Iron-Boron segment magnets

Sintered  Neodymium-Iron-Boron segment magnets
Materials:Neodymium-Iron-Boron magnets, NdFeB magnet
Technology:Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology max from 33-53MGOev, max working temperature up to 230°C
Magnetic properties: High coercive force, (BH) max from 33 to 53MGOe, max working temperature up to 230°C.
Grades: N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH, 30EH-35EH;
Shapes and sizes: Segment/ Arc, R x r x H x Degree, Customized;
Coatings:Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
Applications:Widely used in motors, rotors, wind turbines/wind generators, etc.
Parameters: Grade (property), Size (R x r x H x Degree) or Drawing, Coating, Quantity, Etc.
Note: All of our magnets could be customized, and we’d like to give some suggestions if you need. Related keywords: ferrite magnet. rare earth magnet, NdFeB magnets


Key Specifications/Special Features:
Materials: neodymium, iron, boron and few transition metals
Coating: nickel
Maximum (BH): 52MGE
Grades: N35 to N50, N35M to 48M, N35H to N48H, N35SH to N42SH, N35UH to N40UH and N28 to N35 (EH and AH)
Maximum working temperature:
NdFeB N: 80°C
NdFeB M: 100°C
NdFeB H: 120°C
NdFeB SH: 150 °C
NdFeB UH: 180°C
NdFeB EH: 200°C
Various shapes and sizes are available
Suitable for sensor, linear actuators and household appliances
Customized designs and specifications are accepted
Segment Size of Neodymium Magnets. Widely used in motor and rotor ! The following items are the relative products of the NdFeB Segment Magnets,you can quickly find the NdFeB Segment Magnets through the list. Most segment magnets magnetized through diameter in pairs ! Few part that are thickness magnetized !

neodymium segment magnet

Rare Earth Neodymium Segment Magnet

Neodymium Segment Magnet, Strong Segment Permanent Motor Magnets, N35SH Segment Magnets, Color Zinc Plated Motor Arc Magnets high working temperature, China NdFeB Permanent Generator Magnet Supplier Rare Earth Neodymium Segment Magnet Feature: Part No.: 35SHNBS16.3 Dimensions: 16.3 mm o.r. x 13.8 mm I.r. x 30.0 mm x 120° Material: Neodymium, Grade N35SH Plating : Color […]

Zinc Plated Sintered Neodymium Arc Magnet

Zinc Plated Sintered Neodymium Arc Magnet

Zinc Plated Sintered Neodymium Arc Magnet, Motor Permanent Magnets, Strong Rare Earth Arc Magnet, Neodymium-Iron-Boron Segment Neo Magnets China supplier, electromotive motor-driven PM magnets, poweroperated motor magnet Sintered NdFeB Magnet / Zinc Plated Sintered Neodymium Arc Magnet Feature: high working temperature & precise dimension. Steady property,high Consistency. Available in turbine. Name: Neodymium Magnets Grade:N35-N52,N33M-N48M,N30H-N48H,N30SH-N48SH,N30UH-N40UH,N30EH-N38EH size:Customer required Coating: Nickel, […]

Arc Golden Coating Rare Earth Magnets

Arc Golden Coating Rare Earth Magnets

Arc Golden Coating Rare Earth Magnets, Gold Coated Segment Neodymium Iron Boron Magnets, Golden Plating Sintered NdFeB Arc Magnets, electric motor Permanent Magnets, permanent magnet linear synchronous motors, three-phase asynchronous motor Arc Golden Coating Rare Earth Magnets Feature: 1. Part No.:  HSND-GNMA-(Size)-(Grade)   for example: HSND-GNMA-1-N35 2. Grade: N35 – N52, 30M – 50M, 30H – 48H, 30SH […]

2018年11月26日星期一

Motor Neodymium Segment Magnets

Motor Segment Magnets, Motor Permanent Magnet, N45SH Neodymium Segment Magnets, High Powerful Motor Arc Magnets, Neodymium Generator Permanent Magnet

Motor Segment Magnets N45SH Neodymium Feature:
Part No.: 45SHNBS32
Dimension: R32.5 mmx r29 mmx h 24.9 mmx 60°
60° Section – NdFeB Magnet in N45SH (1.37 Tesla)
Magnetized Direction: through Diameter
Magnetized in pair
Coating: Nickel
Max. Operating Temperature: 150°C


Rare earth magnets are mostly used in motor, such as permanent magnet D.C. motors, wound field D.C. motors, gear motors, custom D.C. motors.
Segment magnet are of the largest quantity we made now. Cilinder magnets are also the most popular motor magnets.
Materials:Neodymium-Iron-Boron magnets, NdFeB magnet
Technology:Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology max from 33-53MGOev, max working temperature up to 230°C
Magnetic properties: High coercive force, (BH) max from 33 to 53MGOe, max working temperature up to 230°C.
Grades: N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH, 30EH-35EH;
Shapes and sizes: Segment/ Arc, R x r x H x Degree, Customized;
Coatings:Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
Applications:Widely used in motors, rotors, wind turbines/wind generators, etc.

Motor Segment Neodymium Magnet

Motor Segment Neodymium Magnet N35H

Motor Segment Neodymium Magnet N35H, Color-Zinc Plated Arc Motor Permanet Magnet, N35H Rare Earth Motor Magnet, Segment NdFeB Magnet, made in China Industry Powerful Strong Segment Generator Magnet Motor Segment Neodymium Magnet Feature: Part No.: 35HNBS1.1/813/4-45 Dimensions: 1 1/8” o.r. x 1” i.r. x 3/4” x 45 Material: Neodymium, Grade N35H Plating/Coating:  Color-Zinc Magnetization Direction: North on […]

Epoxy Plated Segment Generator Magnet

Epoxy Plated Segment Generator Magnet

Epoxy Plated Segment Generator Magnet, Alternator Neodymium Segment Magnet, Wind Turbine Motor Permanent Magnet, Epoxy Coating Rare Earth Magnet, Generator Motor Arc Magnets N45H Epoxy Plated Segment Generator Magnet Feature: Part No.: 45HNBS211-30 Dimensions: 2” o.r. x 1” i.r. x 1” x 30 Material: Neodymium, Grade N45H Plating/Coating: Epoxy Magnetization Direction: North on outside face Max. […]

Sintered Segment NdFeB Magnet

Sintered Segment NdFeB Magnet for Alternator Generator

 Sintered Segment NdFeB Magnet, Alternator Motor Neodymium Permanent Magnet, Motor Magnets Rare Earth Alternator Generator Permanent Magnet, Arc Motor Magnets China Manufacturer Rare Earth Segment NdFeB Magnet Feature: Part No.: 42NBS841/4 Dimensions: 8” OD x 4” ID x 1/4” thick Material: Neodymium, Grade N42 Plating/Coating:  Nickel Magnetization Direction: North on outside face Max. Operating Temperature: 80°C Motor Magnets […]