Gold Member Since 2015
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Hangzhou Xiaoshan Dunben Magnet Co., Ltd.

Block Magnet, Magnets, Neodymium manufacturer / supplier in China, offering N40 Huge Size Block Neodymium Magnet Sale, Metal Name Badges Name Tag Magnet, N45 Strength Fridge Neodymium Magnet and so on.

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N40 Huge Size Block Neodymium Magnet Sale

Purchase Qty.:
300-2,999 3,000+
FOB Unit Price: US $3.39 US $3.31
Purchase Qty. (Pieces) FOB Unit Price
300-2,999 US $3.39
3,000+ US $3.31
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Port: Shanghai, China
Production Capacity: 500PCS/Day
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: N40
  • Shape: Block
  • Grade: N40
  • Tolerance: +/-0.05mm
  • Magnetism Dircetion: Thickness
  • Transport Package: Carton Box with 33X24X26cm
  • Origin: Hangzhou
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Coating: Nickel
  • Size: 30X30X20mm
  • MOQ: 300PCS
  • Trademark: hzdunben
  • Specification: 30X30X20mm
  • HS Code: 85051190
Product Description
1.Neodymium Magnet                                                        
Neodymium Magnet is Neodymium(29%-32.5%)-Iron(63.95%-68.65)-Boron(1.1%-1.2%). 
Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world. They are also referred to as NdFeB magnets, or NIB, because they are composed mainly of Neodymium (Nd), Iron (Fe) and Boron (B).

2.Neodymium Magnet features
DescriptionSintered Rare Earth Permanent Block Motor  Neodymium Magnet
Working TemperatureGradeMax. Operating Temperature
N35-N5280°C  (176°F)
33M- 48M100°C (212°F)
33H-48H120°C (248°F)
30SH-45SH150°C  (302°F)
30UH-40UH180 °C (356°F)
28EH-38EH200°C 392°F)
28AH-35AH220°C  (428°F)

     Magnet Shape
Arc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid Customized shape are available.

     Magnet Coating
Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more.

3. Physical and properties of Neodymium Magnet
Thermal Conductivity7.7 kcal/m-h-µC
Young's Modulus1.7 x 104 kg/mm2
Bending Strength24 kg/mm2
Compressive Strength80 kg/mm2
Electrical Resistivity160 µ-ohm-cm/cm2
Density7.4-7.55 g/cm3
Vickers Hardness500 - 600

4.Application of Neodymium Magnet
motors, electronics, engineering, equipment, medical equipment, household appliances
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