Speaker Meter Magnet Ring Shaped Neodymium Magnets

Neodymium Iron Boron Magnets

Collectively known as Neodymium Iron Boron magnets.Neodymium iron boron magnet is a alloy that composed
by neodymium, iron, boron and a few transition metals like Dysprosium, Gallium .etc. Through  these  melting pressing, Sintering, Machining,Coating, Magnetizing processes to form block,  bar, Cubic, cylinder, ring,arc shapes.

Main Manufacturing process of ndfeb magnets 
1.Pressing ndfeb garins: pressing process was operated in strong magnetic environment.
2.Sintering of ndfeb blocks: sintering was processed in a vacuum furnace.
3.Wire cut: ndfeb magnet are fragile materials,usually specified dimensions was required, genneral cutting process could not reach the standard of sizes,usually cutting process had operated in wire cut machines.
4.Grinding process: Grinding process: To reach the tolerance, a diamond polish tool is needed.
5.Plating: Neodymium magnets had been treated with electrical plating,otherwise it will rust in the air. Platings that have been successfully applied to neodymium magnets are epoxy plating,nickel plating,NICUNI plating,zinc palting and even silver plating and gold plating.
6.Magnetization:the procedure are processed with magnetization machine which have a magnetic feild ranged from 2~100 koe.

Coatings available & Tests 
Coatings Available: Zinc, NiCuNi, Epoxy, Gold, Silver, Tin etc. 
Tests:Plating Thickness Test,Salt Spray Test,PCT Test 
Quality Guarantee
Shine Magnetics has focused on quality control since its founding. Necessary and strict checks and tests are taken in all production processes to make sure any products made by us are trouble free. To work with Shine Magnetics is to get the most reliable supplier of magnetic products. It goes without saying that our magnetic products comply with the highest quality standards. We are working continually to improve the quality and process of the products. 
Following Tests Could be made as per customers` requirements: 
HAST Test: Test Condition: 132.9ºC, 95% humidity, 2.9 ATM, 7 days
Weight Loss: 3mg/cm³
 
 


   






Grade:N33, N35, N38, N40, N42, N48, N50, N52 (M, H, SH, EH, UH,AH)
Shape:Disc, Ring, Block, Segment, Cylinder, Trapezoid, Customized Design (Design proper magnets for clients specific requirements)  
Coating:Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc.   
Applications: Motors,Generators,NdFeB Pot Magnet,Speakers,Sensors,Earphones and other musical instruments,Magnetic therapy devices,Magnetic Chuck,Magnetic bearings and couplings,Other magnetic applications.  

size:We could make different sizes according to customer specific requirements
Directions of Magnetization:
a Thickness Magnetized
b Axially Magnetized 
c Diametrally Magnetized
d Multi-poles magnetized
eCustomzied specific requirements magnetized
 

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