D25X5mm Round Magnets and Super Magnets in The Magnetic Materials

• Customization: Available
• Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, Vcn
• Shape: Disc
• Model NO.: N42
• Grade: N42
• Product Name: D25X5mm Round Magnets and Super Magnets
• Envrionment Management System: ISO14001
• Certificate: Ce/RoHS/SGS
• Quality System-1: ISO/Ts16949:2009
• Model Number: N42
• Magnetization Direction: Axial/Radial/Multi-Poles Magnetization
• Magnetic Properties: 80-200 Degree Centigrade
• Transportation: All Available Shipping Ways Could Be Applied, by C
• Tolerance: +/- 0.05mm
• Lead Time: 3-25days
• Transport Package: as Client′s Request
• Specification: D25x5mm
• Trademark: GME
• Origin: Zhejiang Ningbo/ Fujian Xiamen
• HS Code: 850511100
• Production Capacity: 3000 Tons

Product Description

D25x5mm Round magnets and super magnets in the magnetic materials  
 
Neodymium disc magnets (Nd-Fe-B) are made from the most powerful magnetic materials in the world. These supper magnets have superb strength for their size. Supper magnets are composed of neodymium, iron, boron and a few transition metals. Strongest magnet has many advantages like high coercive force, high energy, high performance/ cost ratio and can be easily formed into various shapes and widely used in many fields such as aviation, electronics, instruments, meters, DC motors, Liner motors, MRI, medical and health products. Strongest magnet is the third generation of rare earth permanent magnet and at the same time the most powerful and advanced commercialized permanent magnet today.
 
Following regular size of D25x5mm round magnets are popular in many applications.
Specification

Size	D25x5mm round magnets
Tolerance	+/- 0,1 mm
Direction of magnetisation	Axial
Magnetic Materials	NdFeB (Neodymium Iron Boron)
Coating	Ni-Cu-Ni
Strength	approx. 6 kg approx. 58,8 N
Weight	11,938 g
Grade	N42
Max. working temperature	80°C
Residual magnetism Br	12900-13200 G 1.29-1.32 T
Coercive field strength bHc	10.8-12.0 kOe 860-955 kA/m
Coercive field strength iHc	≥12 kOe ≥955 kA/m
Energy product (BxH)	max 40-42 MGOe 318-334 kJ/m3

 
 
 
 Feature
· HK/Hcj>97% 
· Flux density consistency>98% 
· Nickel coating>72 hours

Demagnetisation curve N42

 
 
Magnetic field strength versus magnet-encoder distance for D25x5mm round magnets