Gold Member Since 2015
Audited Supplier
Ningbo Shine Magnetic Technology Co., Ltd.

Ring Magnets, Magnet Ring, Neodymium Magnet manufacturer / supplier in China, offering Ring Shaped NdFeB Magnets, 2100kg Construction Magnet for Precast Concrete Industry, Colourful Zinc Coated Precast Concrete Magnetic Fixing Plate (Socket Magnet) and so on.

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Ring Shaped NdFeB Magnets

FOB Price: US $1.3 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1.3/ Piece
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Port: Ningbo, China
Production Capacity: 1000000PCS/Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: N35, N40, N42, N48, N50, N52 (M, H, SH, UH, EH)
  • Shape: Customized
  • Grade: N52
  • Type: Permanent Magnet
  • Certification: ISO9001
  • Transport Package: Suitable for Sea or Air Delivery
  • Origin: Zhang Jiang China
  • Application: Speaker Magnet, Industrial Magnet, Motor Magnet
  • Coating: Nickel
  • Size: Customized
  • Export Market: Global
  • Trademark: shine
  • Specification: N35, N40, N42, N48, N50, N52 (M, H, SH, UH, EH)
  • HS Code: 8505119000
Product Description
Neodymium Iron Boron Magnets

Collectively known as Neodymium Iron Boron magnets.Neodymium iron boron magnet  is a alloy that composed
neodymium, iron, boron and a few transition metals like Dysprosium  .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

Ring Shaped NdFeB Magnets
Ring Shaped NdFeB Magnets
    Ring Shaped NdFeB Magnets
Ring Shaped NdFeB Magnets

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