Long Dimension Permanent Bar Magnet with Center Hole

  • Model NO.: ET-41
  • Shape: Bar
  • Grade: as Customer Required
  • Composition: NdFeB Magnet
  • Work Temp: -20 ~ 80oc
  • Transport Package: Carton
  • Origin: China, Ningbo
  • Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Coating: Nickel
  • Type: Permanent
  • Processing Tolerance: -0.05 ~ +0.05mm
  • Trademark: eastar
  • Specification: N35-N52
  • HS Code:
Long dimension Permanent Bar Magnet with Center Hole
Materials: Sintered NdFeB / Neodymium magnet
Surface treatment: Ni, Ni + Cu + Ni, Zn, epoxy, gold, etc.

Applications of neodymium magnets:
1) Servomotor, step motor, DC motor and linear motor
2) Loudspeaker, headphone, earphone and microphones
3) Holding system equipment
4) Medical facility
5) Sound device
6) Wind power
7) VCM, MRI
8) Mobile accessory
9) Research and development, as well as many other applications

Magnet neodymium iron boron
1. Arc or rectangular magnet.
2. Zinc coating to protect the surface.
3. Used for electric motors

1. Magnet: Neodymium magnet

2. Characteristics:
Super strong Br resident induction.
Excellent demagnetization resistance capability.

3. Surface Treatment Method:
Black Nickel, Chroming, Copper, Epoxy, Gold, Nickel, Nickel+Epoxy, Nickel+Sn, Passivation, Zinc, phosphating

4. Applications of Neodymium Magnets:
AC Motors, DC Motors, servo motors, step motors
Computer rigid disc drives
Magnetic Separators
Magnetic resonance imaging
Speakers & earphones
Medical care machines
 
Parameter unit Standard Data
Curie Temperature(Tc) ºC 310-380
Maximum Operating Temperature(Tw) ºC 80-200
Hardness Hv 620
Electrical Resistivity Ω.CM 1.8X10-4 ~2.0X10-4
Density(D) g/cm3 7.5~7.65
Recoil Permeability µ rec 1.05
Magnetization Field Strength(Hs) KOe >  30
KA/m >  2400
Bending Strength Mpa 295~345
Temp. Coefficient of Br (aBr) %/ºC -0.11~ -0.12
Temp Coefficient of Hcj (aHcj) %/ºC -0.5~ -0.7

 

  Ground Aluminium Hydroxide is manufactured by grinding process.We can make different grade like 5μm,8μm,10μm,15μm,20μm,25μm,50μm,75μm, etc. ATH products during the production.It has many advantages including large-scale production, adequate raw materials, high product purity and good solubility in acid.
Therefore, aluminium hydroxide can be used as an important raw material for the preparation of aluminium salts, such as barium aluminate, aluminium sulfate and so on.

   Also,aluminium hydroxide can transform into alumina, which has high thermal chemical stability, thermal strength, creep resistance and dielectric properties and low thermal expansion coefficient.Currently,it can be used for artifical marble and penal,conveyor belt,paint field,etc.

  The following is our ground aluminium hydroxide specifications :

Grinding Aluminium Hydroxide

Ground Aluminium Hydroxide, Synthetic Marble Aluminium Hydroxide, Aluminium Hydroxide Coarse Powder, Aluminium Hydroxide Coating Filler

Shandong Linjia New Material Technology Co.,Ltd. , http://www.linjiatechnology.com

Posted on